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< Page ,Total 9 >
Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater SCIE
期刊论文 | 2025 , 389 | FUEL
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Abstract :

Among many ways that can improve the electrolysis catalysts of seawater, designing the catalyst with hierarchical nanostructure has received extensive attention because it allows a larger surface area and more active sites. In this work, the NC-enveloped CoS/NiS@Cu2S catalyst with multi-level structure was successfully synthesized by using the complex of trithiocyanuric acid and copper as the metal dopant to coat the spherical Co-Ni precursor, and then by a straightforward one-step high-temperature self-vulcanization reaction. Trithiocyanuric acid not only facilitated the sulfurization of metal elements but also served as N and C source coated on the catalyst. This method constructed structure-controllable, multi-level, and yolk-shelled nanostructure in a facile manner, greatly increasing specific surface area, expanded mass transport channels, and enhancing the exposure of active sites. Besides, the coating of N and C elements significantly increased the electrical conductivity and electrochemical activity of the catalyst. As a result, CoS/NiS@Cu2S@NC exhibited excellent hydrogen evolution performance with the small overpotential of 105, 161, and 176 mV at 10 mA cm-2 in alkaline water, simulated alkaline seawater, and alkaline seawater, respectively. The present approach is proposed as an inspirational idea of the design of cobalt-nickel-copper-based multi-level structural nanomaterials as non-platinum electrocatalysts for hydrogen evolution in seawater.

Keyword :

Alkaline seawater Alkaline seawater CoS/NiS@Cu 2 S@NC CoS/NiS@Cu 2 S@NC Hydrogen evolution reaction Hydrogen evolution reaction Non-platinum electrocatalyst Non-platinum electrocatalyst Transition metal chalcogenide Transition metal chalcogenide Yolk-shelled structure Yolk-shelled structure

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GB/T 7714 Guo, Ming , Luo, Ao , Guan, Guoxiang et al. Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater [J]. | FUEL , 2025 , 389 .
MLA Guo, Ming et al. "Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater" . | FUEL 389 (2025) .
APA Guo, Ming , Luo, Ao , Guan, Guoxiang , Qian, Xing , Yi, Ting , Chen, Ming et al. Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater . | FUEL , 2025 , 389 .
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Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater EI
期刊论文 | 2025 , 389 | Fuel
Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater Scopus
期刊论文 | 2025 , 389 | Fuel
CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution EI
期刊论文 | 2024 , 96 , 711-722 | International Journal of Hydrogen Energy
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Abstract :

Transition metal selenide composites with a core-shell structure offer a compelling alternative to platinum-based catalysts due to their large specific surface area, abundant edge sites, and exceptional synergy between the core and shell components. Core-shell selenide microspheres were prepared using bismuth bromide oxide (BiOBr) as the core and covered with a Ni–Co layered double hydroxides (LDH) shell transferred from ZIF-67 through a simple capping process. After selenization, this formed core-shell structure has an inner core of Bi2Se3 supporting a NiSe2/CoSe2 shell (denoted as Bi2Se3@CoSe2/NiSe2). The remarkable ability of Bi2Se3@NiSe2/CoSe2 to efficiently transfer electrons for iodide and H+ allows it to achieve exceptional photovoltaic conversion efficiency as a counter electrode (CE) in dye-sensitized solar cells (DSSCs) and demonstrate strong performance in the hydrogen evolution reactions (HERs). The power conversion efficiency (PCE) of Bi2Se3@NiSe2/CoSe2 electrocatalysts in DSSCs is 9.39%, significantly higher than that of Pt (6.89%). Besides, during alkaline HER (1.0 M KOH), Bi2Se3@CoSe2/NiSe2 has a lower onset potential of 35.5 mV and a smaller Tafel slope of 58.9 mV dec−1. This work provides a new approach to the design of cost-effective and efficient core-shell micromaterials, which can be applied to the synthesis of other Pt-free electrocatalysts. © 2024 Hydrogen Energy Publications LLC

Keyword :

Bismuth compounds Bismuth compounds Cesium iodide Cesium iodide Dye-sensitized solar cells Dye-sensitized solar cells Layered semiconductors Layered semiconductors Microspheres Microspheres Palladium Palladium Palladium compounds Palladium compounds Platinum Platinum Platinum compounds Platinum compounds Potassium hydroxide Potassium hydroxide Potassium iodide Potassium iodide Selenium compounds Selenium compounds Solar power generation Solar power generation

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GB/T 7714 Qian, Xing , Zheng, Han , Yang, Yajie et al. CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution [J]. | International Journal of Hydrogen Energy , 2024 , 96 : 711-722 .
MLA Qian, Xing et al. "CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution" . | International Journal of Hydrogen Energy 96 (2024) : 711-722 .
APA Qian, Xing , Zheng, Han , Yang, Yajie , Chen, Wenbin , Chen, Ming , Xia, Juan et al. CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution . | International Journal of Hydrogen Energy , 2024 , 96 , 711-722 .
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Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution EI
期刊论文 | 2024 , 78 , 851-860 | International Journal of Hydrogen Energy
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Abstract :

At present, the exploration of renewable energy is a huge challenge, and water electrolysis is regarded as a promising method for producing hydrogen. However, the hydrogen evolution reaction (HER) has been hampered due to expensive Pt-based catalysts. Herein, the Fe2P-coated Ni2P/Co2P nanospheres with yolk-shelled structure were successfully synthesized according to a facile approach of doping transition metal elements and phosphating on the template Ni-Co nanospheres, successively. All samples were tested as HER catalysts at various pH environments. The results showed that the Fe2P-Ni2P/Co2P possesses superior electrocatalytic ability and good stability. The Fe2P-Ni2P/Co2P achieved the lower ηonset (overpotential at 1.0 mA cm−2) of 36.6, 64.2, and 65.9 mV, η10 (overpotential at 10 mA cm−2) of 89.7, 125, and 212 mV, and Tafel slopes of 48.0, 60.3, and 135 mV dec−1 in acidic, alkaline, and neutral solutions, respectively, exhibiting an excellent electrocatalytic activity of the multicomponent phosphides for HER. © 2024 Hydrogen Energy Publications LLC

Keyword :

Alkalinity Alkalinity Binary alloys Binary alloys Cobalt alloys Cobalt alloys Cobalt compounds Cobalt compounds Electrocatalysts Electrocatalysts Electrolysis Electrolysis Hydrogen production Hydrogen production Nanospheres Nanospheres Phosphorus compounds Phosphorus compounds Transition metals Transition metals

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GB/T 7714 Chen, Wenbin , Chen, Siyan , Guo, Ming et al. Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution [J]. | International Journal of Hydrogen Energy , 2024 , 78 : 851-860 .
MLA Chen, Wenbin et al. "Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution" . | International Journal of Hydrogen Energy 78 (2024) : 851-860 .
APA Chen, Wenbin , Chen, Siyan , Guo, Ming , Jiang, Xiancai , Xia, Juan , Chen, Ming et al. Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution . | International Journal of Hydrogen Energy , 2024 , 78 , 851-860 .
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Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries Scopus
期刊论文 | 2024 , 230 | Carbon
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Fe3N nanocrystals embedded in cracked N-doped carbon nanotubes (Fe3N@NCNT) with a cowpea-like shape are innovatively prepared by metal-catalyzed graphitization and nitridization processes based on melamine and FeC2O4 precursor. The new in-situ synthesis strategy is proved to be effective to open the NCNT using a migratory metal carbide nanocatalyst via expansion effect and fabricate a metal nitride embedded NCNT with fully active ingredients. The detailed tip-growth mechanism of cracked NCNT with latitudinal-longitudinal graphene layers is studied by in-situ XRD analysis of the phase evolution of melamine and FeC2O4, and ex-situ SEM/TEM investigation of the topography correlation of NCNT and Fe3C floating catalyst. The Fe3N@NCNT microclews based anodes have a moderate carbon content of 35.45 wt%, electroactive NCNT conductive network, abundant microcracks and an open short-cavity system, showing a stable discharge capacity of 667 mAh g−1 at 0.1C, outstanding rate capability of 448 mAh g−1 at 5C and remarkable long-term cycling stability of 546 mAh g−1 after 600 cycles at 1C. The combined good electronic/ionic conductivity of cracked NCNT and robust mechanical stability of geometrically confined Fe3N nanoparticles contribute to the excellent redox activities, stabilized solid-electrolyte-interphase film and cycling durability of Fe3N@NCNT. © 2024 Elsevier Ltd

Keyword :

Anodes Anodes Carbon nanotubes Carbon nanotubes Growth mechanism Growth mechanism Iron nitrides Iron nitrides Lithium-ion batteries Lithium-ion batteries

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GB/T 7714 Chen, M. , Liu, F.-M. , Zhao, M.-Y. et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries [J]. | Carbon , 2024 , 230 .
MLA Chen, M. et al. "Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries" . | Carbon 230 (2024) .
APA Chen, M. , Liu, F.-M. , Zhao, M.-Y. , Qian, X. , Yuan, Z.-Y. , Wan, R. et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries . | Carbon , 2024 , 230 .
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N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions EI
期刊论文 | 2024 , 1001 | Journal of Alloys and Compounds
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Abstract :

An available approach to ameliorate the property of electrocatalysts for transition metal selenides (TMSs) is to transform their structure, morphology, and elemental composition, especially for hydrogen evolution reactions (HER), which can be a long-term task. In this work, Ni-Co nanospheres were synthesized by a hydrothermal method, and then in the synchronous processes of selenization and carbonization, it reacted with the peripherally coated melamine-copper complex, which was the reactant between melamine and copper ions. Ultimately, CoSe2/NiSe2@Cu2Se-NC nanospheres with a core-shell structure were synthesized after annealing process. This special structure provided more active attachment sites, enabling CoSe2/NiSe2@Cu2Se-NC to exhibit excellent HER properties under wide-pH range. Especially, in acidic conditions, it had a low initial potential of 41.0 mV, a small Tafel slope value of 48.7 mV dec–1, and a long service life. The proposed scheme indicates that a new approach will be added to the synthesis of electrocatalysts based on TMSs. © 2024 Elsevier B.V.

Keyword :

Binary alloys Binary alloys Carbon Carbon Carbonization Carbonization Cobalt alloys Cobalt alloys Cobalt compounds Cobalt compounds Copper compounds Copper compounds Doping (additives) Doping (additives) Electrocatalysts Electrocatalysts Electrolysis Electrolysis Hydrogen Hydrogen Metal ions Metal ions Nanospheres Nanospheres Nickel compounds Nickel compounds pH pH Selenium compounds Selenium compounds Shells (structures) Shells (structures) Transition metals Transition metals

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GB/T 7714 Guo, Ming , Chen, Siyan , Xiong, Yonglian et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions [J]. | Journal of Alloys and Compounds , 2024 , 1001 .
MLA Guo, Ming et al. "N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions" . | Journal of Alloys and Compounds 1001 (2024) .
APA Guo, Ming , Chen, Siyan , Xiong, Yonglian , Chen, Ming , Xia, Juan , Chen, Wenbin et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions . | Journal of Alloys and Compounds , 2024 , 1001 .
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Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex EI
期刊论文 | 2024 , 602 | Journal of Power Sources
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Abstract :

The efficiency and stability of perovskite solar cells (PSCs) can be greatly affected by various factors such as passivating the perovskite film, oxidizing the hole-transport material of 2,2′,7,7′-tetras(N,N-p-methoxyaniline)-9,9′-spirodifluorene (Spiro-OMeTAD), and inhibiting the iodide migration. Here we introduce a multifunctional starch-iodine complex in the perovskite film to enhance the fill factor and stability of PSCs. Results demonstrate that the starch-iodine complex from the perovskite film can release iodine molecules to gently oxidize the Spiro-OMeTAD, which can significantly increase the PSC's fill factor. Moreover, the remaining starch can effectively passivate the perovskite film to obviously improve the PSC's long-term stability. Furthermore, the starch-iodine complex can absorb and store the iodide ions to generate a starch-triiodide complex, which can release iodide ions to promote iodide defect self-healing and suppress iodide migration in the perovskite films, resulting in a further enhancement of the PSC's long-term stability. As a result, the PSC based on the starch-iodine complex obtains a superior cell efficiency of 22.60% with a high fill factor of 79.54%, and keeps 91.12% of its original efficiency after 1500 h. © 2024 Elsevier B.V.

Keyword :

Efficiency Efficiency Passivation Passivation Perovskite Perovskite Perovskite solar cells Perovskite solar cells Stability Stability Starch Starch

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GB/T 7714 Wang, Yunpeng , Xiao, Yaoming , Wang, Lidan et al. Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex [J]. | Journal of Power Sources , 2024 , 602 .
MLA Wang, Yunpeng et al. "Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex" . | Journal of Power Sources 602 (2024) .
APA Wang, Yunpeng , Xiao, Yaoming , Wang, Lidan , Su, Zisheng , Xu, Yunpeng , Fan, Liangbiao et al. Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex . | Journal of Power Sources , 2024 , 602 .
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Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells EI
期刊论文 | 2024 , 675 , 761-771 | Journal of Colloid and Interface Science
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Abstract :

Among the various non-precious metal catalysts that drive hydrogen evolution reactions (HERs) and dye-sensitized solar cells (DSSCs), transition metal selenides (TMSs) stand out due to their unique electronic properties and tunable morphology. Herein, the multicomponent selenide CuSe-Co3Se4@VSe2 was successfully synthesized by doping with metal element vanadium and selenization on the copper-cobalt carbonate hydroxide (CuCo-CH) template. CuSe-Co3Se4@VSe2 exhibited the dandelion-like cluster structure composed of hollow nanotubes doped with VSe2 nanoparticles. Due to the unique structure and the synergistic effect of various elements, CuSe-Co3Se4@VSe2 showed excellent alkaline HER and DSSC performances. The DSSC based on CuSe-Co3Se4@VSe2 exhibited an impressive power conversion efficiency (PCE) of 9.64 %, which was much higher than that of Pt (8.39 %). Besides, it possessed a low HER overpotential of 76 mV@10 mA cm−2 and a small Tafel slope of 88.9 mV dec−1 in 1.0 M KOH. © 2024 Elsevier Inc.

Keyword :

Cobalt compounds Cobalt compounds Conversion efficiency Conversion efficiency Copper compounds Copper compounds Dye-sensitized solar cells Dye-sensitized solar cells Electronic properties Electronic properties Hydrogen Hydrogen Nanocatalysts Nanocatalysts Nanotubes Nanotubes Potassium hydroxide Potassium hydroxide Selenium compounds Selenium compounds Transition metals Transition metals

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GB/T 7714 Qian, Xing , Yu, Hao , Chen, Wenbin et al. Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells [J]. | Journal of Colloid and Interface Science , 2024 , 675 : 761-771 .
MLA Qian, Xing et al. "Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells" . | Journal of Colloid and Interface Science 675 (2024) : 761-771 .
APA Qian, Xing , Yu, Hao , Chen, Wenbin , Wu, Jianhua , Xia, Juan , Chen, Ming et al. Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells . | Journal of Colloid and Interface Science , 2024 , 675 , 761-771 .
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Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model SCIE
期刊论文 | 2024 , 171 (9) | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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Abstract :

The thermal safety of lithium-ion batteries has garnered significant attention due to its pivotal role in the field of new energy. In this work, a three-dimensional electrochemical-thermal coupling model based on the P2D model was established for predicting the thermal performance. The charge-discharge and temperature rise experiments via 18650 cylindrical Li[Ni0.6Co0.2Mn0.2]O-2 / graphite batteries are designed to confirm the rationality of the model. The simulation results show that the highest temperature of the battery surface during discharging at 1 C and 4 C are 42.85 degrees C and 61.25 degrees C, and the experimental results are 42.50 degrees C and 62.85 degrees C, respectively. The electrode heat generation mainly comes from the reaction heat of cathode and anode during 1 C charge process, the maximum power is 1.2 W and 0.6 W, respectively. In the discharge process, the cathode dominates the reaction contribution of 1.02 W and the reaction heat power from the anode is only 0.016 W. The capacity of heat dissipation can be increased by enhancing the convective heat transfer coefficient and air velocity within a reasonable range. The proposed electrochemical-thermal coupling model is valuable to evaluate the heat behavior and promote the battery development.

Keyword :

electrochemical-thermal coupling model electrochemical-thermal coupling model electrode heat generation electrode heat generation heat dissipation heat dissipation lithium-ion batteries lithium-ion batteries thermal performance thermal performance

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GB/T 7714 Zhang, Chao , Shang, Jin , Xiong, Yonglian et al. Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model [J]. | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2024 , 171 (9) .
MLA Zhang, Chao et al. "Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model" . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY 171 . 9 (2024) .
APA Zhang, Chao , Shang, Jin , Xiong, Yonglian , Yi, Ting , Hou, Quanhui , Qian, Xing . Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2024 , 171 (9) .
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Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model EI
期刊论文 | 2024 , 171 (9) | Journal of the Electrochemical Society
Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model Scopus
期刊论文 | 2024 , 171 (9) | Journal of the Electrochemical Society
Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries SCIE
期刊论文 | 2024 , 230 | CARBON
Abstract&Keyword Cite Version(2)

Abstract :

Fe3N nanocrystals embedded in cracked N-doped carbon nanotubes (Fe3N@NCNT) with a cowpea-like shape are innovatively prepared by metal-catalyzed graphitization and nitridization processes based on melamine and FeC2O4 precursor. The new in-situ synthesis strategy is proved to be effective to open the NCNT using a migratory metal carbide nanocatalyst via expansion effect and fabricate a metal nitride embedded NCNT with fully active ingredients. The detailed tip-growth mechanism of cracked NCNT with latitudinal-longitudinal graphene layers is studied by in-situ XRD analysis of the phase evolution of melamine and FeC2O4, and ex-situ SEM/TEM investigation of the topography correlation of NCNT and Fe3C floating catalyst. The Fe3N@NCNT microclews based anodes have a moderate carbon content of 35.45 wt%, electroactive NCNT conductive network, abundant microcracks and an open short-cavity system, showing a stable discharge capacity of 667 mAh g-1 at 0.1C, outstanding rate capability of 448 mAh g-1 at 5C and remarkable long-term cycling stability of 546 mAh g-1 after 600 cycles at 1C. The combined good electronic/ionic conductivity of cracked NCNT and robust mechanical stability of geometrically confined Fe3N nanoparticles contribute to the excellent redox activities, stabilized solid-electrolyte-interphase film and cycling durability of Fe3N@NCNT.

Keyword :

Anodes Anodes Carbon nanotubes Carbon nanotubes Growth mechanism Growth mechanism Iron nitrides Iron nitrides Lithium-ion batteries Lithium-ion batteries

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GB/T 7714 Chen, Ming , Liu, Feng-Ming , Zhao, Ming-Yang et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries [J]. | CARBON , 2024 , 230 .
MLA Chen, Ming et al. "Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries" . | CARBON 230 (2024) .
APA Chen, Ming , Liu, Feng-Ming , Zhao, Ming-Yang , Qian, Xing , Yuan, Zhong-Yong , Wan, Rong et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries . | CARBON , 2024 , 230 .
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Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries Scopus
期刊论文 | 2024 , 230 | Carbon
Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries EI
期刊论文 | 2024 , 230 | Carbon
CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution SCIE
期刊论文 | 2024 , 96 , 711-722 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Abstract&Keyword Cite Version(2)

Abstract :

Transition metal selenide composites with a core-shell structure offer a compelling alternative to platinum-based catalysts due to their large specific surface area, abundant edge sites, and exceptional synergy between the core and shell components. Core-shell selenide microspheres were prepared using bismuth bromide oxide (BiOBr) as the core and covered with a Ni-Co layered double hydroxides (LDH) shell transferred from ZIF-67 through a simple capping process. After selenization, this formed core-shell structure has an inner core of Bi2Se3 supporting a NiSe2/CoSe2 shell (denoted as Bi2Se3@CoSe2/NiSe2). The remarkable ability of Bi2Se3@NiSe2/CoSe2 to efficiently transfer electrons for iodide and H+ allows it to achieve exceptional photovoltaic conversion efficiency as a counter electrode (CE) in dye-sensitized solar cells (DSSCs) and demonstrate strong performance in the hydrogen evolution reactions (HERs). The power conversion efficiency (PCE) of Bi2Se3@NiSe2/CoSe2 electrocatalysts in DSSCs is 9.39%, significantly higher than that of Pt (6.89%). Besides, during alkaline HER (1.0 M KOH), Bi2Se3@CoSe2/NiSe2 has a lower onset potential of 35.5 mV and a smaller Tafel slope of 58.9 mV dec-1 . This work provides a new approach to the design of cost-effective and efficient core-shell micromaterials, which can be applied to the synthesis of other Pt-free electrocatalysts.

Keyword :

Bifunctional catalyst Bifunctional catalyst Core-shell microsphere Core-shell microsphere Dye-sensitized solar cell Dye-sensitized solar cell Hydrogen evolution reaction Hydrogen evolution reaction Pt-free electrocatalyst Pt-free electrocatalyst

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GB/T 7714 Qian, Xing , Zheng, Han , Yang, Yajie et al. CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2024 , 96 : 711-722 .
MLA Qian, Xing et al. "CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 96 (2024) : 711-722 .
APA Qian, Xing , Zheng, Han , Yang, Yajie , Chen, Wenbin , Chen, Ming , Xia, Juan et al. CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2024 , 96 , 711-722 .
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CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution Scopus
期刊论文 | 2024 , 96 , 711-722 | International Journal of Hydrogen Energy
CoSe2/NiSe2-wrapped Bi2Se3 hierarchical core-shell microspheres as bifunctional Pt-free catalytic materials for high-efficiency solar cell and hydrogen evolution EI
期刊论文 | 2024 , 96 , 711-722 | International Journal of Hydrogen Energy
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