Ordered Pt3Co Nanoparticles as Electrocatalyst for the Oxygen Reduction Reaction
Source abstract
Abstract
The facile and efficient fabrication of small-sized Pt-based intermetallic catalysts represents a critical requirement for fuel cells but remains challenging. Herein, we report an external space confinement annealing strategy to synthesize a small-sized Pt 3 Co intermetallic catalyst. This method inhibits nanoparticle migration and sintering by creating a low-flow microenvironment. X-ray diffraction and high-resolution transmission electron microscopy confirm the formation of a well-defined L1 2 ordered phase. X-ray photoelectron spectroscopy reveals stronger electron interactions and a reduced d-band for Pt 3 Co/C, which delivers 0.46 A mg –1 mass activity and retains 73.89% activity postdurability test.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering
Hebei University of Technology
State Key Laboratory of Precious Metal Functional Materials
Yunnan Precious Metals Lab Co., Ltd.
Funding
Natural Science Foundation of Hebei Province · National Natural Science Foundation of China · Beijing-Tianjin Hebei Collaborative Project on Basic Research · Major Science and Technology Projects of Yunnan Province
References (29)
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