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Atomic controlled shell thickness on Pt@Pt3Ti core-shell nanoparticles for efficient and durable oxygen reduction
期刊论文 | 2025 , 205 (2) , 212-220 | 材料科学技术(英文版)
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Abstract :

The exploitation of durable and highly active Pt-based electrocatalysts for the oxygen reduction reaction(ORR)is essential for the commercialization of proton exchange membrane fuel cells(PEMFCs).Herein,we designed Pt@Pt3Ti core-shell nanoparticles with atomic-controllable shells through precise thermal diffusing Ti into Pt nanoparticles for effective and durable ORR.Combining theoretical and experiment analysis,we found that the lattice strain of Pt3Ti shells can be tailored by precisely controlling the thick-ness of Pt3Ti shell in atomic-scale on account of the lattice constant difference between Pt and Pt3Ti to optimize adsorption properties of Pt3Ti for ORR intermediates,thus enhancing its performance.The Pt@Pt3Ti catalyst with one-atomic Pt3Ti shell(Pt@1L-Pt3Ti/TiO2-C)demonstrates excellent performance with mass activity of 592 mA mgpt-1 and durability nearly 19.5-fold that of commercial Pt/C with neg-ligible decay(2%)after 30,000 potential cycles(0.6-1.0 V vs.RHE).Notably,at higher potential cycles(1.0 V-1.5 V vs.RHE),Pt@1L-Pt3Ti/TiO2-C also showed far superior durability than Pt/C(9.6%decayed while 54.8%for commercial Pt/C).This excellent stability is derived from the intrinsic stability of Pt3Ti alloy and the confinement effect of TiO2-C.The catalyst's enhancement was further confirmed in PEMFC configuration.

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GB/T 7714 Haoran Jiang , Zichen Wang , Suhao Chen et al. Atomic controlled shell thickness on Pt@Pt3Ti core-shell nanoparticles for efficient and durable oxygen reduction [J]. | 材料科学技术(英文版) , 2025 , 205 (2) : 212-220 .
MLA Haoran Jiang et al. "Atomic controlled shell thickness on Pt@Pt3Ti core-shell nanoparticles for efficient and durable oxygen reduction" . | 材料科学技术(英文版) 205 . 2 (2025) : 212-220 .
APA Haoran Jiang , Zichen Wang , Suhao Chen , Yong Xiao , Yu Zhu , Wei Wu et al. Atomic controlled shell thickness on Pt@Pt3Ti core-shell nanoparticles for efficient and durable oxygen reduction . | 材料科学技术(英文版) , 2025 , 205 (2) , 212-220 .
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Dual-Atomic-Site Engineering of Pt-Based Intermetallic Catalysts for Highly Efficient and Durable Oxygen Reduction SCIE
期刊论文 | 2025 | ADVANCED FUNCTIONAL MATERIALS
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Abstract :

Developing high-performance oxygen reduction reaction (ORR) catalysts with minimal Pt loading while maintaining excellent activity and durability remains a critical challenge for the commercialization of proton exchange membrane fuel cells (PEMFCs). Herein, a hybrid catalyst comprising Co-Zn dual-atomic sites and L10-ordered PtCoZn intermetallics with a Pt-rich shell (denoted as L10-PtCoZn@Pt-CoZnDA) is presented for high ORR performance. The optimized catalyst delivers a remarkable mass activity of 2.33 A mgPt-1, exceeding that of commercial Pt/C (0.148 A mgPt-1) by more than 16-fold. PEMFC testing further verifies its excellent durability and high current density, verifying its practical potential. Combined experimental and theoretical studies attribute the superior performance to the synergistic interplay between the compressively strained Pt skin, encapsulating the atomically ordered L10-PtCoZn core, and the adjacent Co-Zn-N5 sites. This well-integrated architecture not only tunes the electronic structure and optimizes intermediate adsorption energies but also facilitates a dual-channel electron acceptance-backdonation mechanism for efficient O & horbar;O bond activation. Furthermore, a dual-site associative ORR pathway is promoted, where electronic coupling between the Co-Zn-N5 sites and Pt skin enhances *O & horbar;OH bond cleavage and accelerates reaction kinetics. This work offers a viable strategy for the rational design of next-generation Pt-based electrocatalysts with enhanced activity and stability for PEMFC applications.

Keyword :

dual-atom sites dual-atom sites electron acceptance-backdonation electron acceptance-backdonation fuel cells fuel cells oxygen reduction oxygen reduction Pt-based intermetallics Pt-based intermetallics

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GB/T 7714 Wu, Wei , Wang, Zichen , Zhu, Yu et al. Dual-Atomic-Site Engineering of Pt-Based Intermetallic Catalysts for Highly Efficient and Durable Oxygen Reduction [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 .
MLA Wu, Wei et al. "Dual-Atomic-Site Engineering of Pt-Based Intermetallic Catalysts for Highly Efficient and Durable Oxygen Reduction" . | ADVANCED FUNCTIONAL MATERIALS (2025) .
APA Wu, Wei , Wang, Zichen , Zhu, Yu , Jiang, Haoran , Chen, Xuwen , Chen, Suhao et al. Dual-Atomic-Site Engineering of Pt-Based Intermetallic Catalysts for Highly Efficient and Durable Oxygen Reduction . | ADVANCED FUNCTIONAL MATERIALS , 2025 .
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Dual-Atomic-Site Engineering of Pt-Based Intermetallic Catalysts for Highly Efficient and Durable Oxygen Reduction Scopus
期刊论文 | 2025 | Advanced Functional Materials
Atomically Dispersed Pt-Nx and Ce-Nx Dual Sites Enhance PtCe Nanoparticles for Oxygen Reduction Reaction SCIE
期刊论文 | 2025 | ADVANCED FUNCTIONAL MATERIALS
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Abstract :

Developing stable and high-performance Pt-based alloy catalysts is essential for advancing the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs), as the harsh operating conditions often cause the leaching of transition metals. Herein, a highly stable electrocatalyst (Pt-Ce-N-C) consisting of ultra-small Pt-Ce alloy nanoparticles and atomically dispersed Pt-Nx and Ce-Nx dual sites for highly efficient ORR is reported. The Pt-Ce-N-C demonstrates a remarkable mass activity (MA) of 1.17 A mgPt-1, 7 times higher than that of commercial Pt/C. Importantly, the performance attenuation is negligible even after 30 000 cycles in accelerated durability tests (ADT). In H2/Air PEMFC testing, the Pt-Ce-N-C exhibits exceptional performance and durability with a peak power density of 1.229 W cm-2 -twofold of Pt/C- and retaining 87.9% of its performance (1.08 W cm-2) after 30 000 ADT cycles. Combined theoretical and experimental results reveal that Ce-Nx sites primarily function as an adsorption site for reactants due to their strong affinity for oxygen, while PtCe alloy and Pt-Nx serve as active centers for ORR. This synergistic interaction between the alloy and dual-site design significantly enhances catalytic activity and durability.

Keyword :

electronic interaction electronic interaction fuel cell fuel cell oxygen reduction reaction oxygen reduction reaction Pt-based alloy catalyst Pt-based alloy catalyst rare-earth metals rare-earth metals

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GB/T 7714 Xiao, Yong , Wang, Zichen , Liu, Zhirang et al. Atomically Dispersed Pt-Nx and Ce-Nx Dual Sites Enhance PtCe Nanoparticles for Oxygen Reduction Reaction [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 .
MLA Xiao, Yong et al. "Atomically Dispersed Pt-Nx and Ce-Nx Dual Sites Enhance PtCe Nanoparticles for Oxygen Reduction Reaction" . | ADVANCED FUNCTIONAL MATERIALS (2025) .
APA Xiao, Yong , Wang, Zichen , Liu, Zhirang , Wei, Qiliang , Qu, Wei , Jiang, Yinghui et al. Atomically Dispersed Pt-Nx and Ce-Nx Dual Sites Enhance PtCe Nanoparticles for Oxygen Reduction Reaction . | ADVANCED FUNCTIONAL MATERIALS , 2025 .
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Atomically Dispersed Pt-Nx and Ce-Nx Dual Sites Enhance PtCe Nanoparticles for Oxygen Reduction Reaction Scopus
期刊论文 | 2025 | Advanced Functional Materials
Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH SCIE
期刊论文 | 2025 , 684 , 95-104 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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Abstract :

The development of high-performance electrocatalysts for hydrogen evolution reaction (HER) in different pH conditions is pivotal in producing green hydrogen, but remains challenging. Herein, we regulate the p-d orbitals hybridization between B and Pt for effective and durable HER at all pH ranges by controlling the inserted B atom. Consequently, the optimized B-doped Pt catalysts with 20 at.% B content (Pt80B20/C) has the highest HER performance, with only 7 mV overpotential in acidic conditions, 37 mV in alkaline media, and 47 mV in neutral media, more remarkably, have negligible attenuation during electrolysis up to 100 h, which is superior to commercial Pt/C catalysts. Theoretical calculations revealed that by inserting appropriate B atoms in the interstitial vacancies of Pt, the electronic structure of Pt is suitable for providing appropriate hydrogen intermediates (H*) adsorption/desorption strength, resulting in superior acid HER electrocatalyst performance. Besides, a strong electronic interaction existed between Pt and inserted-B atoms leaving Pt sites in an electron deficiency state, which facilitates the bond cleavage of the H-OH of H2O, hence accelerating water dissociation and promoting neutral/alkaline HER dynamics.

Keyword :

Electronic structure Electronic structure Hydrogen evolution reaction Hydrogen evolution reaction Orbital hybridization Orbital hybridization Pt-based catalysts Pt-based catalysts universal-pH universal-pH Water splitting Water splitting

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GB/T 7714 Jiang, Haoran , Xiao, Yong , Liu, Zhirang et al. Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 684 : 95-104 .
MLA Jiang, Haoran et al. "Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 684 (2025) : 95-104 .
APA Jiang, Haoran , Xiao, Yong , Liu, Zhirang , Wang, Zichen , Wei, Bojian , Wei, Qiliang et al. Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 684 , 95-104 .
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Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH EI
期刊论文 | 2025 , 684 , 95-104 | Journal of Colloid and Interface Science
Inserted-B atoms modulating electronic structure of Pt enhancing hydrogen evolution under Universal-pH Scopus
期刊论文 | 2025 , 684 , 95-104 | Journal of Colloid and Interface Science
Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation SCIE
期刊论文 | 2025 , 35 (22) | ADVANCED FUNCTIONAL MATERIALS
WoS CC Cited Count: 5
Abstract&Keyword Cite Version(2)

Abstract :

The oxygen spillover on the metal/oxide electrocatalysts interface acts as an essential role in promoting the oxygen evolution reaction (OER) for proton exchange membrane water electrolyzers (PEMWEs). However, oxygen spillover mechanisms and corresponding regulatory strategies are still unclear for addressing slow OH-migration kinetics. Herein, an interface is constructed between Iridium (Ir) and Niobium (Nb)-doped Titanium oxide (TiO2) with abundant oxygen vacancies area by plasma processing, enabling oxygen spillover from the metal Ir to supports. The optimized Ir/Nb-doped TiO2 with a significant OER activity (eta = 253 mV) and durability in acids compared to commercial IrO2. In situ experiments combined with theoretical computations reveal the presence of interfacial oxygen vacancies not only regulates the Ir structure toward boosted activity but also constructs a directional spillover pathway from Ir to interfacial oxygen vacancies area and then TiO2 via the OH*-filling route, which strikingly mitigates the OH* migration barriers. In addition, the optimized Ir/Nb-doped TiO2 exhibits excellent performance (1.69 V/1.0 A cm-2@80 degrees C) and long-term stability (approximate to 500 h@1.0 A cm-2) with practical potential in PEMWEs. This work provides a unique insight into the role of oxygen spillover, paving the way for designing Ir-based catalysts for PEMWEs.

Keyword :

Ir-based electrocatalysts Ir-based electrocatalysts oxygen evolution reaction oxygen evolution reaction oxygen spillover oxygen spillover oxygen vacancy oxygen vacancy PEM water electrolysis PEM water electrolysis

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GB/T 7714 Zhu, Yu , Guo, Fei , Wei, Qiliang et al. Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 , 35 (22) .
MLA Zhu, Yu et al. "Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation" . | ADVANCED FUNCTIONAL MATERIALS 35 . 22 (2025) .
APA Zhu, Yu , Guo, Fei , Wei, Qiliang , Lai, Feiyan , Chen, Runzhe , Guo, Jianing et al. Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation . | ADVANCED FUNCTIONAL MATERIALS , 2025 , 35 (22) .
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Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation EI
期刊论文 | 2025 , 35 (22) | Advanced Functional Materials
Engineering the Metal/Oxide Interfacial O-Filling Effect to Tailor Oxygen Spillover for Efficient Acidic Water Oxidation Scopus
期刊论文 | 2025 , 35 (22) | Advanced Functional Materials
Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis SCIE
期刊论文 | 2025 , 37 (26) | ADVANCED MATERIALS
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Abstract :

High-active nonplatinum group metal oxygen reduction reaction (ORR) catalysts have great potential to improve fuel cell and metal-air battery performance due to their efficiency and cost-effectiveness. However, a fundamental understanding of their size-dependent structure-performance relationships remain elusive. Here a mesoporous-dominant carbon nanoreactor with dimensions in the range of 15-43 nm with edge-rich defective atomic Zn sites is designed. The crystal size and pore diameter of this carbon nanoreactors can be precisely adjusted to enable tunable mass diffusion pathways and porosities. Importantly, the hydrophobic nature of 25 nm nanoreactors maximizes the nonkinetic advantages of active site exposure and rapid O2 mass transfer at the triple-phase interface. The developed Zn-N-P/NPC catalysts delivers outstanding alkaline and acidic ORR performance with half-wave potentials of 0.92 and 0.80 V, respectively, as well as excellent zinc-air battery performance with charge/discharge over 400 h under 20 mA cm-2. X-ray absorption spectroscopy and theoretical calculations indicate that the enhanced ORR catalytic activity of Zn-N-P/NPC stems from the introduction of P atoms and edge carbon defects effectively exciting the localized electronic asymmetric distribution of Zn species. The findings provide new perspectives on the size effect of porous carbon supports for the development of efficient cathodes catalysts with multifunctionality.

Keyword :

carbon nanoreactors carbon nanoreactors coordination structure regulation coordination structure regulation nanosize adjustment nanosize adjustment oxygen reduction reaction oxygen reduction reaction single atom catalysts single atom catalysts Zn-air batteries Zn-air batteries

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GB/T 7714 Tan, Yangyang , Zhang, Zeyi , Guo, Fei et al. Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis [J]. | ADVANCED MATERIALS , 2025 , 37 (26) .
MLA Tan, Yangyang et al. "Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis" . | ADVANCED MATERIALS 37 . 26 (2025) .
APA Tan, Yangyang , Zhang, Zeyi , Guo, Fei , Chen, Suhao , Jiang, Haoran , Chen, Runzhe et al. Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis . | ADVANCED MATERIALS , 2025 , 37 (26) .
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Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis EI
期刊论文 | 2025 , 37 (26) | Advanced Materials
Highly Defective Ultrafine Carbon Nanoreactors Enriched with Edge-Type Zn-N3P1 Moiety Boosting Oxygen Electrocatalysis Scopus
期刊论文 | 2025 , 37 (26) | Advanced Materials
Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution SCIE
期刊论文 | 2025 , 687 , 423-431 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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Abstract :

The triggering of fast hydrogen spillover through regulating the charge rearrangement of the metal-support serves as a crucial mechanism for decoupling the activity of HER catalysts from the adsorption properties, which not only contributes to enhancing the performance of the catalysts but also facilitates the production of green hydrogen. Herein, we tailor the electronic interaction between two-dimensional (2D) nitrogen-doped MoC (N-MoC) nanosheets and an ultra-low content of Pt nanoclusters (1 wt%) to trigger reverse hydrogen spillover and modulate the electronic structure of Pt, thus achieving efficient and stable HER. Compared to Pt/C (0.229 A mgPt-1), Pt/N-MoC demonstrates a mass activity of 12.945 A mgPt-1, representing an enhancement of nearly 57.5 times. Notably, the excellent electrocatalytic performance was verified in the proton exchange membrane water electrolyzer configuration. Combining experimental and theoretical analysis, an ultra-low load of Pt nanocluster (1 wt%) integrated with N-MoC nanosheets can induce a charge transfer from N-MoC to Pt, thus modulating the d-band center of Pt to improve the hydrogen adsorption properties and achieving fast hydrogen desorption (Delta G = 0.019 eV); furthermore, a small difference in work function between Pt nanoclusters and the N-MoC were achieved to dilute charge accumulation between the metal-support interface, thus reducing the energy barrier of hydrogen spillover.

Keyword :

Charge transfer Charge transfer Electronic metal-support interaction Electronic metal-support interaction Hydrogen evolution Hydrogen evolution Pt-based catalyst Pt-based catalyst Reverse hydrogen spillover Reverse hydrogen spillover

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GB/T 7714 Wang, Zichen , Zhang, Jiancan , Wei, Qiliang et al. Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 687 : 423-431 .
MLA Wang, Zichen et al. "Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 687 (2025) : 423-431 .
APA Wang, Zichen , Zhang, Jiancan , Wei, Qiliang , Guo, Fei , Chen, Runzhe , Jiang, Haoran et al. Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 687 , 423-431 .
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Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution EI
期刊论文 | 2025 , 687 , 423-431 | Journal of Colloid and Interface Science
Tailored electronic interaction between metal-support trigger reverse hydrogen spillover for efficient hydrogen evolution Scopus
期刊论文 | 2025 , 687 , 423-431 | Journal of Colloid and Interface Science
Tailoring the d-band center of ordered Pd-Zn pair in ultra-small PdZn intermetallic for efficient methanol oxidation SCIE
期刊论文 | 2025 , 18 (8) | NANO RESEARCH
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Abstract :

Direct methanol fuel cells (DMFCs) face commercialization challenges due to sluggish methanol oxidation reaction (MOR) and catalyst poisoning. Pd-based alloy catalysts show promise in alkaline media, but their high cost, poor stability, and CO intermediate toxicity hinder practical applications. Herein, we present a melamine-assisted confinement strategy to construct ultra-small PdZn ordered intermetallic nanoparticles (O-PdZn@MEL/C) with optimized electronic configurations. The carbon shell derived from pyrolyzed melamine imposes spatial constraints that suppress nanoparticle coalescence while enhancing structural stability. Zn incorporation induces d-orbital hybridization, which downshifts the Pd d-band center to weaken CO* adsorption while strengthening OH* binding at Zn sites. The catalyst demonstrates exceptional mass activity (2505.35 mAmgPd-1), 3.65 times higher than that of commercial Pd/C, with a lower onset potential (0.47 V vs. reversible hydrogen electrode (RHE)). Stability tests reveal 94.3% activity retention after 500 cyclic voltammetry (CV) cycles and only 52.5% current density decay during 4000 s operation. This work establishes d-band engineering through ordered intermetallic design as an effective pathway to develop CO-tolerant, high-performance anode catalysts for advanced fuel cells.

Keyword :

confinement effects confinement effects direct methanol fuel cells direct methanol fuel cells intermetallic intermetallic methanol oxidation reaction methanol oxidation reaction palladium-based catalysts palladium-based catalysts

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GB/T 7714 Zhu, Yu , Jiang, Yinghui , Ye, Lifan et al. Tailoring the d-band center of ordered Pd-Zn pair in ultra-small PdZn intermetallic for efficient methanol oxidation [J]. | NANO RESEARCH , 2025 , 18 (8) .
MLA Zhu, Yu et al. "Tailoring the d-band center of ordered Pd-Zn pair in ultra-small PdZn intermetallic for efficient methanol oxidation" . | NANO RESEARCH 18 . 8 (2025) .
APA Zhu, Yu , Jiang, Yinghui , Ye, Lifan , Wang, Zichen , Wei, Qiliang , Cheng, Niancai . Tailoring the d-band center of ordered Pd-Zn pair in ultra-small PdZn intermetallic for efficient methanol oxidation . | NANO RESEARCH , 2025 , 18 (8) .
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Tailoring the d-band center of ordered Pd-Zn pair in ultra-small PdZn intermetallic for efficient methanol oxidation EI
期刊论文 | 2025 , 18 (8) | Nano Research
Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation SCIE
期刊论文 | 2025 | ADVANCED FUNCTIONAL MATERIALS
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Abstract :

Metal oxyhydroxides (MOOHs) as the active phase of transition metal-oxide (TMOs) electrodes in the oxygen evolution reaction (OER) are limited by unsatisfactory electrochemical activity and stability during high-current conditions. Herein, the heterostructure of high-valent IrOx (Irn+, n>4) combined with FeNi3OOH via asymmetric electron transport is deliberately designed on carbon cloth (IrOx-FeNi3OOH/CC) as a promising OER electrocatalyst for industrial deployments. Experimental and DFT calculations reveal that the asymmetric electron transfer from Ir to the low-spin orbital of Fe/Ni sites via bridged O2- sites (Ir & horbar;O & horbar;Ni/Fe bonds) at IrOx-FeNi3OOH heterostructure interfaces induces the formation of high-valent Ir species. This process tailors the d-band center of Ir sites, thereby reducing the energy barrier of the rate-determining step from O* to OOH* in OER. The elevated activity of high-valent Ir enables IrOx-FeNi3OOH/CC to achieve an ultra-low overpotential of 241 mV at 200 mA cm(-2), along with remarkable stability for 160 h under large current conditions (outperforming commercial IrO2/CC). This work offers a basis for rationally designing and analyzing the potential role of precious-metal-based oxyhydroxides as electrocatalysts for the OER and related processes.

Keyword :

heterostructures heterostructures Ir species Ir species metal oxyhydroxides metal oxyhydroxides oxygen evolution reaction oxygen evolution reaction water splitting water splitting

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GB/T 7714 Zhu, Yu , Cai, Zhixiong , Wei, Qiliang et al. Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation [J]. | ADVANCED FUNCTIONAL MATERIALS , 2025 .
MLA Zhu, Yu et al. "Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation" . | ADVANCED FUNCTIONAL MATERIALS (2025) .
APA Zhu, Yu , Cai, Zhixiong , Wei, Qiliang , Chen, Runzhe , Guo, Fei , Jiang, Yinghui et al. Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation . | ADVANCED FUNCTIONAL MATERIALS , 2025 .
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Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation EI
期刊论文 | 2025 , 35 (31) | Advanced Functional Materials
Asymmetric Electron Transport-Induced Formation of High-Valent IrOx in NiFeOOH Heterostructure for Efficient Water Oxidation Scopus
期刊论文 | 2025 , 35 (31) | Advanced Functional Materials
Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction SCIE
期刊论文 | 2025 , 699 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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Abstract :

Direct ethanol fuel cells (DEFCs) have been extensively studied as promising energy conversion devices due their non-toxicity, low corrosivity, and high energy and power densities. However, developing highly active durable catalysts for the ethanol oxidation reaction (EOR) at the anode remains a significant challenge. Herein, we modulate the intermediate affinity on Pt nanoparticles (NPs) to achieve highly efficient EOR performance through precise optimization of the Pt-CeO2 interface. The well-defined and fully exposed Pt-CeO2 interface engineered through controlled incorporation of CeO2 nanoclusters within the hierarchical pore structure nitrogen-doped porous carbon (NPC). The high electrical conductivity and abundant pore structure of NPC only accelerate the charge transfer rate but also enhance the stability of CeO2 through confinement effects. Importantly, experimental and theoretical analyses reveal that the interaction between CeO2 and Pt strengthens the stability of Pt NPs, modulates the surface charge distribution of Pt, and provides additional adsorbed hydroxyl species (OHads), further boosting the ethanol oxidation capability of Pt. The Pt/CeO2@NPC-300 catalyst not only delivers a maximum mass activity of 1207 mA mgPt-1 and retains 64.7 % of its initial performance after 500 cycles, but also exhibits excellent CO tolerance. This study proposes an innovative catalyst structural design strategy to advance the development of DEFCs and other sustainable energy technologies.

Keyword :

Direct ethanol fuel cells Direct ethanol fuel cells Electronic structure Electronic structure Ethanol oxidation reaction Ethanol oxidation reaction Interface engineering Interface engineering Pt-based catalysts Pt-based catalysts

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GB/T 7714 Jiang, Haoran , Liu, Zhirang , Wang, Zichen et al. Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 699 .
MLA Jiang, Haoran et al. "Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 699 (2025) .
APA Jiang, Haoran , Liu, Zhirang , Wang, Zichen , Zhu, Wangbin , Wei, Qiliang , Guo, Fei et al. Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 699 .
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Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction Scopus
期刊论文 | 2025 , 699 | Journal of Colloid and Interface Science
Confined cerium oxide clusters induced interface engineering enhance platinum nanoparticles for efficient ethanol oxidation reaction EI
期刊论文 | 2025 , 699 | Journal of Colloid and Interface Science
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