DataVXAdvanced MaterialsPaper
journal article·2021-10

Ultrathin PdAuBiTe Nanosheets as High‐Performance Oxygen Reduction Catalysts for a Direct Methanol Fuel Cell Device

Fengling Zhao, Lirong Zheng, Qiang Yuan, Xiaotong Yang, Qinghua Zhang, Han Xu, Yuanlong Guo, Song Yang, Zhiyou Zhou, Lin Gu, Xun Wang

Advanced Materials· Volume 33· Issue 42
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Source abstract

Abstract

Abstract Ultrathin 2D metal nanostructures have sparked a lot of research interest because of their improved electrocatalytic properties for fuel cells. So far, no effective technique for preparing ultrathin 2D Pd‐based metal nanostructures with more than three compositions has been published. Herein, a new visible‐light‐induced template technique for producing PdAuBiTe alloyed 2D ultrathin nanosheets is developed. The mass activity of the PdAuBiTe nanosheets against the oxygen reduction reaction (ORR) is 2.48 A mgPd−1, which is 27.5/17.7 times that of industrial Pd/C/Pt/C, respectively. After 10 000 potential cyclings, there is no decrease in ORR activity. The PdAuBiTe nanosheets exhibit high methanol tolerance and in situ anti‐CO poisoning properties. The PdAuBiTe nanosheets, as cathode electrocatalysts in direct methanol fuel cells, can thus give significant improvement in terms of power density and durability. In O2/air, the power density can be increased to 235.7/173.5 mW cm−2, higher than that reported in previous work, and which is 2.32/3.59 times higher than Pt/C.
Source: crossref · Quality: baseline

Research context

Energy storageMetals & alloysNanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State‐Local Joint Laboratory for Comprehensive Utilization of Biomass Center for R&D of Fine Chemicals College of Chemistry and Chemical Engineering Guizhou University Guiyang Guizhou Province 550025 P. R. China

Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China

Key Lab of Organic Optoelectronics & Molecular Engineering Tsinghua University Beijing 100084 P. R. China

Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics Beijing 100190 P. R. China

College of Materials and Metallurgy Guizhou University Guiyang Guizhou Province 550025 P. R. China

State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China

Funding

National Natural Science Foundation of China · Xiamen University · Tsinghua University

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