Efficient Methanol Oxidation Catalysis by PtNi Nanowires with Controllable Element Distribution

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

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Near-infrared driven photocatalytic hydrogen production from ammonia borane hydrolysis using heterostructure-upconverted nanoparticles

Sustainable Energy & Fuels, Journal Year: 2024, Volume and Issue: 8(19), P. 4575 - 4587

Published: Jan. 1, 2024

This study presents a novel approach to hydrogen evolution through ammonia borane dehydrogenation, utilizing the unique properties of upconverted nanoparticles (UCNPs) and safe, abundant near-infrared (NIR) light.

Language: Английский

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Synthesis and Enhanced Electrocatalytic Activity of Platinum and Palladium-Based Nanoflowers Supported on Reduced Graphene Oxide

Molecules, Journal Year: 2024, Volume and Issue: 29(22), P. 5462 - 5462

Published: Nov. 20, 2024

Graphene-supported flower-shaped platinum and palladium nanomaterials assisted by hexadecyltrimethylammonium bromide have been successfully developed. Compared with the catalyst reduced redox reaction between metal precursors graphene oxide, obtained using reduction in active hydrogen atoms exhibits enhanced catalytic activity alcohol electrocatalytic oxidation reactions. Repeated cyclic voltammetry chronoamperometry tests both indicate that prepared has excellent stability.

Language: Английский

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Application of Electrodeposition Preparation Method in the Field of Electrocatalysts

Journal of Advances in Physical Chemistry, Journal Year: 2024, Volume and Issue: 13(04), P. 834 - 850

Published: Jan. 1, 2024

Language: Английский

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