Query：
学者姓名：刘尧
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
Nitrate electroreduction is promising for achieving effluent waste-water treatment and ammonia production with respect to the global nitrogen balance. However, due to the impeded hydrogenation process, high overpotentials need to be surmounted during nitrate electroreduction, causing intensive energy consumption. Herein, a hydroxide regulation strategy is developed to optimize the interfacial H2O behavior for accelerating the hydrogenation conversion of nitrate to ammonia at ultralow overpotentials. The well-designed Ru & horbar;Ni(OH)(2) electrocatalyst shows a remarkable energy efficiency of 44.6% at +0.1 V versus RHE and a nearly 100% Faradaic efficiency for NH3 synthesis at 0 V versus RHE. In situ characterizations and theoretical calculations indicate that Ni(OH)(2) can regulate the interfacial H2O structure with a promoted H2O dissociation process and contribute to the spontaneous hydrogen spillover process for boosting NO3 (-) electroreduction to NH3 at Ru sites. Furthermore, the assembled rechargeable Zn-NO3 (-)/ethanol battery system exhibits an outstanding long-term cycling stability during the charge-discharge tests with the production of high-value-added ammonium acetate, showing great potential for simultaneously achieving nitrate removal, energy conversion, and chemical synthesis. This work can not only provide a guidance for interfacial H2O regulation in extensive hydrogenation reactions but also inspire the design of a novel hybrid flow battery with multiple functions.
Keyword ：
ammonia synthesis ammonia synthesis hydrogen spillover hydrogen spillover interfacial H2O regulation interfacial H2O regulation nitrate electroreduction nitrate electroreduction rechargeable hybrid flow battery rechargeable hybrid flow battery ultralow overpotentials ultralow overpotentials
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wan, Yuchi , Pei, Maojun , Tang, Yixiang et al. Interfacial Water Regulation for Nitrate Electroreduction to Ammonia at Ultralow Overpotentials [J]. | ADVANCED MATERIALS , 2025 , 37 (8) . |
| MLA | Wan, Yuchi et al. "Interfacial Water Regulation for Nitrate Electroreduction to Ammonia at Ultralow Overpotentials" . | ADVANCED MATERIALS 37 . 8 (2025) . |
| APA | Wan, Yuchi , Pei, Maojun , Tang, Yixiang , Liu, Yao , Yan, Wei , Zhang, Jiujun et al. Interfacial Water Regulation for Nitrate Electroreduction to Ammonia at Ultralow Overpotentials . | ADVANCED MATERIALS , 2025 , 37 (8) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Urea oxidation reaction (UOR) emerges as a promising alternative anodic half-reaction to oxygen evolution reaction (OER) in an electrochemical CO2 reduction reaction (ECRR) system. Herein, a Ni/MnO heterojunction with extraordinary UOR activity is synthesized on Ni foam. Ex situ/in situ characterization and theoretical calculation reveal that the outstanding UOR performance of Ni/MnO catalyst can be ascribed to two successive surface reconstructions. In the first and second surface reconstructions, Ni(OH)2/MnOOH and NiOOH/MnOOH heterojunctions are formed on the catalyst surface, and Mn and Ni sites serve as the active sites, respectively. The heterojunctions formed can enhance UOR activity by reducing the surface reconstruction potential and optimizing the adsorption energy of intermediates through electronic structure modulation and d-band center regulation. When employed as the UOR anode in the CO2 electrolyzer, it requires 375 mV less voltage at 10 mA cm-2 than the OER, revealing the great potential of applying such Ni/MnO catalyst as the anodic UOR in an ECRR system for carbon neutrality. © 2024 American Chemical Society.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, K. , Pei, M. , Shuai, Y. et al. Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis [J]. | ACS Energy Letters , 2024 , 9 (9) : 4682-4690 . |
| MLA | Wang, K. et al. "Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis" . | ACS Energy Letters 9 . 9 (2024) : 4682-4690 . |
| APA | Wang, K. , Pei, M. , Shuai, Y. , Liu, Y. , Deng, S. , Zhuang, Z. et al. Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis . | ACS Energy Letters , 2024 , 9 (9) , 4682-4690 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Transition metal sulfides as anode materials for sodium-ion batteries (SIBs) have the advantage of high capacity. However, their cycle-life and rate performance at ultra-high current density is still a thorny issue that limit the applicability of these materials. In this paper, the carbon-embedded heterojunction with sulfur-vacancies regulated by ultrafine bimetallic sulfides (vacancy-CoS2/FeS2@C) with robust interfacial C-S-Co/Fe chemical bonds is successfully synthesized and explored as an anode material for sodium-ion battery. By changing the ratio of two metal cations, the concentration of anion sulfur vacancies can be in-situ adjusted without additional post-treatment. The as-prepared vacancy-CoS2/FeS2@C anode material offers ultrahigh rate performance (285.1 mAh g-1 at 200 A g-1), and excellent long-cycle stability (389.2 mAh g-1 at 40 A g-1 after 10000 cycles), outperforming all reported transition metal sulfides-based anode materials for SIBs. Both in-situ and ex-situ characterizations provide strong evidence for the evolution mechanism of the phases and stable solid-electrolyte interface (SEI) on the vacancy-CoS2/FeS2@C surface. The density functional theory calculations show that constructing heterojunction with reasonable concentration of vacancies can significantly increase the anode electronic conductivity. Notably, the assembled vacancy-CoS2/FeS2@C//Na3V2(PO4)3/C full-cell shows a capacity of 226.2 mAh g-1 after 400 cycles at 2.0 A g-1, confirming this material's practicability. The carbon-embedded heterojunction with sulfur-vacancies regulated by ultrafine bimetallic sulfides (vacancy-CoS2/FeS2@C) is successfully synthesized and explored as an anode material for sodium-ion battery. The mechanism of vacancy-CoS2/FeS2@C for sodium storage is confirmed by in/ex-situ measurements and DFT calculations. This research has taken an important step toward the development of high-performance energy storage electrode materials. image
Keyword ：
anode materials anode materials heterojunction heterojunction sodium-ion batteries sodium-ion batteries sulfur vacancies sulfur vacancies transition metal sulfides transition metal sulfides
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zheng, Hui , Ma, Dakai , Pei, Maojun et al. Heterojunction Vacancies-Promoted High Sodium Storage Capacity and Fast Reaction Kinetics of the Anodes for Ultra-High Performance Sodium-Ion Batteries [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 35 (1) . |
| MLA | Zheng, Hui et al. "Heterojunction Vacancies-Promoted High Sodium Storage Capacity and Fast Reaction Kinetics of the Anodes for Ultra-High Performance Sodium-Ion Batteries" . | ADVANCED FUNCTIONAL MATERIALS 35 . 1 (2024) . |
| APA | Zheng, Hui , Ma, Dakai , Pei, Maojun , Lin, Chenkai , Liu, Yao , Deng, Shuqi et al. Heterojunction Vacancies-Promoted High Sodium Storage Capacity and Fast Reaction Kinetics of the Anodes for Ultra-High Performance Sodium-Ion Batteries . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 35 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Spinel cobalt oxide(Co3O4),consisting of tetrahedral Co2+(CoTd)and octahedral Co3+(CoOh),is considered as promising earth-abundant electrocatalyst for chlorine evolution reaction(CER).Identifying the cat-alytic contribution of geometric Co site in the electrocatalytic CER plays a pivotal role to precisely mod-ulate electronic configuration of active Co sites to boost CER.Herein,combining density functional theory calculations and experiment results assisted with operando analysis,we found that the CoOh site acts as the main active site for CER in spinel Co3O4,which shows better Cl-adsorption and more moderate inter-mediate adsorption toward CER than CoTd site,and does not undergo redox transition under CER condi-tion at applied potentials.Guided by above findings,the oxygen vacancies were further introduced into the Co3O4 to precisely manipulate the electronic configuration of Cooh to boost Cl-adsorption and opti-mize the reaction path of CER and thus to enhance the intrinsic CER activity significantly.Our work fig-ures out the importance of geometric configuration dependent CER activity,shedding light on the rational design of advanced electrocatalysts from geometric configuration optimization at the atomic level.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Linke Cai , Yao Liu , Jingfang Zhang et al. Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction [J]. | 能源化学 , 2024 , 92 (5) : 95-103 . |
| MLA | Linke Cai et al. "Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction" . | 能源化学 92 . 5 (2024) : 95-103 . |
| APA | Linke Cai , Yao Liu , Jingfang Zhang , Qiqi Jia , Jiacheng Guan , Hongwei Sun et al. Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction . | 能源化学 , 2024 , 92 (5) , 95-103 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Carbon materials are commonly integrated with TiO2 to achieve high carrier mobility and excellent photocatalytic performance, and the chemical bond between TiO2 - C is considered as a significant strategy to enhance efficiency. Nevertheless, few analyses have elucidated the formation mechanism of Ti3+ - C bonds and the underlying reasons for the performance enhancement. To address these issues, this study conducts an in-depth investigation into the electronic structure of TiO2 - C and demonstrates that the charge in the nonbonding molecular orbital t2g of Ti3+ is transferred to the unoccupied 2p energy level of C through the formation of 1 pi and 2 pi bonds, i.e., (Ti 3d(xz) - C 2p(y)) and (Ti3d(xy) - C 2p(x)). The hybridization of t(2g)-2p orbitals endows the Ti3+ - C bond with higher carrier mobility and a stronger binding force, thereby contributing to stable photocatalytic H-2 production. Inspired by this scenario, the NSTiO2/rGO hybrid architecture, featuring the {101}/{001} surface heterojunction and the Ti3+ - C interfacial chemical bond, has been constructed. As a result, the hybrid catalyst exhibited excellent photocatalytic cycling stability of 92.9% and an H-2 evolution rate of 33.4 mmolh(-1)g(-1). This work proposes a strategy for designing efficient photocatalyst by regulating orbitals to achieve high-performance photocatalytic methanol splitting.
Keyword ：
cycling stability cycling stability photocatalytic methanol splitting photocatalytic methanol splitting surface heterojunction surface heterojunction t(2g)-2p orbital modulation t(2g)-2p orbital modulation Ti3+ - C chemical bond Ti3+ - C chemical bond
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yu, Wen-Bei , Zhang, Heng-Rui , Zhang, Hong-Wei et al. Modulating Ti t2g Orbital Bonding in Dual-Channeled TiO2/rGO Hybrid Architecture for Stable Photocatalytic Methanol to Hydrogen [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (52) . |
| MLA | Yu, Wen-Bei et al. "Modulating Ti t2g Orbital Bonding in Dual-Channeled TiO2/rGO Hybrid Architecture for Stable Photocatalytic Methanol to Hydrogen" . | ADVANCED FUNCTIONAL MATERIALS 34 . 52 (2024) . |
| APA | Yu, Wen-Bei , Zhang, Heng-Rui , Zhang, Hong-Wei , Liu, Yao , Li, Yu , Su, Bao-Lian . Modulating Ti t2g Orbital Bonding in Dual-Channeled TiO2/rGO Hybrid Architecture for Stable Photocatalytic Methanol to Hydrogen . | ADVANCED FUNCTIONAL MATERIALS , 2024 , 34 (52) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The large overpotential required for oxygen evolution reaction (OER) is one of the major factors limiting the efficiency of electrochemical water-electrolysis for hydrogen production. In this work, to decrease OER energy barrier and obtain low overpotential, amorphous-crystalline NiCo(OH)2 nanoplates are in-situ grown on nickel foam surface to form a catalyst-based electrode (ac-NiCo(OH)2/NF) for water-electrolysis application. As the inner amorphization of NiCo(OH)2 results in increased electron density of the metal sites, leading to the formation of tensile Ni-O bond, the coordinatively unsaturated Ni sites in the down-shift d-band centers toward Fermi level can lower the anti-bonding states. This can lead to optimized adsorption and desorption energies for oxygen-containing intermediates for OER. As expected, the prepared ac-NiCo(OH)2/NF electrode presents a low overpotential of 364 mV to deliver 1000 mA cm-2 toward OER with impressively high robust stability. When this electrocatalyst electrode serves as both the anode and cathode, the assembled anion exchange membrane (AEM) electrolyser only needs a cell voltage of 1.68 V to drive the overall water-electrolysis process at a current density of 10 mA cm-2.
Keyword ：
AEM electrolyser AEM electrolyser Amorphous-crystalline Amorphous-crystalline High current density High current density Oxygen evolution Oxygen evolution Unsaturated atoms Unsaturated atoms
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Ju, Shang , Liu, Yao , Pei, Maojun et al. Amorphization-induced abundant coordinatively unsaturated Ni active sites in NiCo(OH)2 for boosting catalytic OER and HER activities at high current densities for water-electrolysis [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 653 : 1704-1714 . |
| MLA | Ju, Shang et al. "Amorphization-induced abundant coordinatively unsaturated Ni active sites in NiCo(OH)2 for boosting catalytic OER and HER activities at high current densities for water-electrolysis" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 653 (2024) : 1704-1714 . |
| APA | Ju, Shang , Liu, Yao , Pei, Maojun , Shuai, Yankang , Zhai, Zibo , Yan, Wei et al. Amorphization-induced abundant coordinatively unsaturated Ni active sites in NiCo(OH)2 for boosting catalytic OER and HER activities at high current densities for water-electrolysis . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2024 , 653 , 1704-1714 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Urea oxidation reaction (UOR) emerges as a promising alternative anodic half-reaction to oxygen evolution reaction (OER) in an electrochemical CO2 reduction reaction (ECRR) system. Herein, a Ni/MnO heterojunction with extraordinary UOR activity is synthesized on Ni foam. Ex situ/in situ characterization and theoretical calculation reveal that the outstanding UOR performance of Ni/MnO catalyst can be ascribed to two successive surface reconstructions. In the first and second surface reconstructions, Ni(OH)(2)/MnOOH and NiOOH/MnOOH heterojunctions are formed on the catalyst surface, and Mn and Ni sites serve as the active sites, respectively. The heterojunctions formed can enhance UOR activity by reducing the surface reconstruction potential and optimizing the adsorption energy of intermediates through electronic structure modulation and d-band center regulation. When employed as the UOR anode in the CO2 electrolyzer, it requires 375 mV less voltage at 10 mA cm(-2) than the OER, revealing the great potential of applying such Ni/MnO catalyst as the anodic UOR in an ECRR system for carbon neutrality.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Kaili , Pei, Maojun , Shuai, Yankang et al. Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis [J]. | ACS ENERGY LETTERS , 2024 , 9 (9) : 4682-4690 . |
| MLA | Wang, Kaili et al. "Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis" . | ACS ENERGY LETTERS 9 . 9 (2024) : 4682-4690 . |
| APA | Wang, Kaili , Pei, Maojun , Shuai, Yankang , Liu, Yao , Deng, Shuqi , Zhuang, Zewen et al. Rapid Two Surface Reconstructions of Ni/MnO Heterojunction for Superior Urea Electrolysis . | ACS ENERGY LETTERS , 2024 , 9 (9) , 4682-4690 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction (OER). Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid (PA) cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH- to form Co(Fe)(OH)(x) and subsequent potential-driven oxidation to Co(Fe)OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm(-2) and a long-term stability. The experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure, accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.
Keyword ：
Co-based complex Co-based complex Complete reconstruction Complete reconstruction Oxygen evolution reaction Oxygen evolution reaction Precatalysts Precatalysts
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Jingfang , Wu, Danyang , Cai, Linke et al. Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution [J]. | JOURNAL OF ENERGY CHEMISTRY , 2024 , 100 : 226-233 . |
| MLA | Zhang, Jingfang et al. "Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution" . | JOURNAL OF ENERGY CHEMISTRY 100 (2024) : 226-233 . |
| APA | Zhang, Jingfang , Wu, Danyang , Cai, Linke , Lu, Youluan , Cheng, Fanpeng , Shi, Lijuan et al. Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution . | JOURNAL OF ENERGY CHEMISTRY , 2024 , 100 , 226-233 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The oxygen evolution reaction (OER) performance of NiCo LDH electrocatalysts can be improved through fluorine doping. The roles of Ni and Co active sites in such catalysts remain ambiguous and controversial. In addressing the issue, this study draws upon the molecular orbital theory and proposes the active center competitive mechanism between Ni and Co. The doped F-atoms can directly impact the valence state of metal atoms or exert an indirect influence through the dehydrogenation, thereby modulating the active center. As the F-atoms are progressively aggregate, the e(g) orbitals of Ni and Co transition from e(g)(2) to e(g)(1), and subsequently to e(g)(0). The corresponding valence state elevates from +2 to +3, and then to +4, signifying an initial increase followed by a subsequent decrease in the electrocatalytic performance. Furthermore, a series of F-NiCo LDH catalysts are synthesized to verify the e(g) orbital occupancy analysis, and the catalytic OER overpotentials are 303, 243, 240, and 246 mV at the current density of 10 mA cm(-2), respectively, which coincides well with the theoretical prediction. This investigation not only provides novel mechanistic insights into the transition and competition of Ni and Co in F-NiCo LDH catalysts but also establishes a foundation for the design of high-performance catalysts.
Keyword ：
competitive mechanism competitive mechanism dehydrogenation dehydrogenation e(g) orbital occupancy e(g) orbital occupancy F-NiCo LDH electrocatalyst F-NiCo LDH electrocatalyst valence state valence state
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Pei, Mao-Jun , Shuai, Yan-Kang , Gao, Xiang et al. Ni and Co Active Site Transition and Competition in Fluorine-Doped NiCo(OH)2 LDH Electrocatalysts for Oxygen Evolution Reaction [J]. | SMALL , 2024 , 20 (31) . |
| MLA | Pei, Mao-Jun et al. "Ni and Co Active Site Transition and Competition in Fluorine-Doped NiCo(OH)2 LDH Electrocatalysts for Oxygen Evolution Reaction" . | SMALL 20 . 31 (2024) . |
| APA | Pei, Mao-Jun , Shuai, Yan-Kang , Gao, Xiang , Chen, Jia-Cheng , Liu, Yao , Yan, Wei et al. Ni and Co Active Site Transition and Competition in Fluorine-Doped NiCo(OH)2 LDH Electrocatalysts for Oxygen Evolution Reaction . | SMALL , 2024 , 20 (31) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Spinel cobalt oxide (Co3O4), consisting of tetrahedral Co2+ (CoTd) and octahedral Co3+ (CoOh), is considered as promising earth-abundant electrocatalyst for chlorine evolution reaction (CER). Identifying the catalytic contribution of geometric Co site in the electrocatalytic CER plays a pivotal role to precisely modulate electronic configuration of active Co sites to boost CER. Herein, combining density functional theory calculations and experiment results assisted with operando analysis, we found that the CoOh site acts as the main active site for CER in spinel Co3O4, which shows better Cl- adsorption and more moderate intermediate adsorption toward CER than CoTd site, and does not undergo redox transition under CER condition at applied potentials. Guided by above findings, the oxygen vacancies were further introduced into the Co3O4 to precisely manipulate the electronic configuration of CoOh to boost Cl- adsorption and optimize the reaction path of CER and thus to enhance the intrinsic CER activity significantly. Our work figures out the importance of geometric configuration dependent CER activity, shedding light on the rational design of advanced electrocatalysts from geometric configuration optimization at the atomic level. (c) 2023 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press
Keyword ：
Active chlorine Active chlorine Chlorine evolution reaction Chlorine evolution reaction Electronic configuration optimization Electronic configuration optimization Geometry effects Geometry effects Spinel oxides Spinel oxides
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Cai, Linke , Liu, Yao , Zhang, Jingfang et al. Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction [J]. | JOURNAL OF ENERGY CHEMISTRY , 2024 , 92 : 95-103 . |
| MLA | Cai, Linke et al. "Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction" . | JOURNAL OF ENERGY CHEMISTRY 92 (2024) : 95-103 . |
| APA | Cai, Linke , Liu, Yao , Zhang, Jingfang , Jia, Qiqi , Guan, Jiacheng , Sun, Hongwei et al. Unveiling the geometric site dependent activity of spinel Co3O4 for electrocatalytic chlorine evolution reaction . | JOURNAL OF ENERGY CHEMISTRY , 2024 , 92 , 95-103 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
