Binary (Ti/RuO2-TiO2) and ternary (Ti/RuO2-TiO2-IrO2) mixed metal oxides as promising catalysts for alkaline electrochemical oxidation of methanol DOI

A. B. Abdel-Aziz,

Rasha M. El Nashar, Ibrahim M. Ghayad

et al.

Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133620 - 133620

Published: Nov. 7, 2024

Language: Английский

Unlocking the potential of chemical-assisted water electrolysis for green hydrogen production DOI Creative Commons
Jiwoo Lee, Sol A Lee,

Tae Hyung Lee

et al.

Industrial Chemistry and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Chemical-assisted water electrolysis is gaining attraction as an alternative to conventional produce hydrogen, but high overpotential a major challenge. This review covers advanced strategies reduce the operation voltage.

Language: Английский

Citations

0
Tuning Vacancy in Metal Oxide Support to Enhance Activity and Durability of Pt Catalysts for the Methanol Oxidation Reaction DOI
Ahmed M. Jasim, Gan Xu, Matthias J. Young

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 4350 - 4358

Published: Feb. 26, 2025

Coupling Pt with metal oxides has been shown to be an effective approach for catalyst durability enhancement in the methanol oxidation reaction (MOR). Here, we report tuning valence niobium oxide (NbOx) as a support by tin (SnO2) promoter mediate electrocatalysis MOR. The was designed consist of supported on SnO2-modified NbOx coated carbon black (Pt-TNb/C), which shows significantly enhanced electrochemical and activity MOR that are better than without SnO2 modification (Pt-Nb/C) those reported literature. Electron diffraction pair distribution function analysis showed increase Nb–Nb bond length after incorporation, from 3.80 3.84 Å, indicative effect. X-ray photoelectron spectroscopy further confirmed mediation Pt-TNb/C catalyst, evidenced positive binding energy peak shifts 0.49 0.66 eV Nb 3d5/2 3d3/2, respectively, compared Pt-Nb/C catalyst. currents 2.71 A/mg-Pt at beginning 1.94 end 1000 cycles 1.0 M 0.5 H2SO4 electrolyte, corresponding 28.41% loss. However, much smaller loss only 3.77%, 3.45 A/mg 3.32 under same test conditions. high new attributed effect oxide, addition bifunctional oxide.

Language: Английский

Citations

0
Advances in Novel Supported Pt‐Based Catalysts for Methanol Electrolysis DOI

Jiaojiao Li,

Fulin Yang, Ligang Feng

et al.

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract Methanol electrolysis, coupling thermodynamically favorable methanol oxidation reaction (MOR) and hydrogen evolution (HER), is a promising strategy for energy‐saving generation as compared with traditional water splitting. Pt‐based catalysts are the best choice while intrinsic activity utilization of Pt should be increased due to its high cost. Supporting engineering effective in boosting catalytic effectiveness, some novel supports diverse support effects developed accelerate kinetics improve efficiency. Herein, comprehensive review recent advances electrocatalysts methanol‐assisted production provided. The mechanism electrolysis anode MOR cathode HER first outlined, respectively. Then, performance enhancement effects, including anchoring, electronic, synergistic, strain briefly discussed. Subsequently, clarified by supports, metal oxides, phosphides, selenides, tellurides, presented, promotion effect relevant challenges future perspectives concluded last section, where most attention paid metal‐supporting their understanding study.

Language: Английский

Citations

0
Efficient Methanol Oxidation Catalysis by PtNi Nanowires with Controllable Element Distribution DOI

Xiaojie Jiang,

Zhenyu Zhang, Xing Hu

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Pt-based alloys with precisely controllable element distribution are highly sought after in catalysis. This study focuses on optimizing elemental and alloying PtNi alloy nanowires (NWs) through high-temperature heat treatment. The resulting NWs uniform (U-PtNi NWs) demonstrate exceptional stability, attributed to facilitated electron transfer a denser Pt shell, stark contrast untreated that suffer from segregation subsequent performance degradation during electrochemical testing. In methanol oxidation reaction tests, U-PtNi demonstrated mass activity (1562.0 mA mg–1) specific (5.38 cm–2), minimal loss 1000 cycles. work emphasizes the significance of precise component control developing high-performance catalysts presents strategy enhance fuel cell one-dimensional nanocomponent adjustment.

Language: Английский

Citations

0
Polydopamine-linking coupling Ketjen black with graphene for anchoring palladium nanocrystallines enables a robust methanol oxidation DOI

Qiqige Wulan,

Sizhuo Ma,

Jinjuan Zhao

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 100, P. 149 - 155

Published: Dec. 23, 2024

Language: Английский

Citations

1
Binary (Ti/RuO2-TiO2) and ternary (Ti/RuO2-TiO2-IrO2) mixed metal oxides as promising catalysts for alkaline electrochemical oxidation of methanol DOI

A. B. Abdel-Aziz,

Rasha M. El Nashar, Ibrahim M. Ghayad

et al.

Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133620 - 133620

Published: Nov. 7, 2024

Language: Английский

Citations

0