Platinum-Silver Alloy Nanoballoon Nanoassemblies with Super Catalytic Activity for the Formate Electrooxidation
Source abstract
Abstract
Alkaline direct formate fuel cells (ADFFC) are emerging as a propitious candidate for green energy conversion devices. However, the poor electrocatalytic activity and stability of anodic electrocatalysts are immense challenges for its full-scale commercialization. In the current work, Pt–Ag alloy nanoballoon nanoassemblies (ANBNSs) were easily synthesized by the galvanic replacement reaction between three-dimensionally multibranched Ag nanoflowers and K2PtCl4. Electrochemical results exhibit that Pt–Ag ANBNSs have a nearly 19.3-fold activity enhancement for the formate oxidation reaction (FOR) over commercial Pt nanoparticles in alkaline media, as well as a higher resistance to CO poisoning and excellent durability for the FOR. This work demonstrates that Pt–Ag ANBNSs are indeed highly promising active and durable electrocatalysts for the FOR due to the integration of geometric/electronic effects and porous architecture.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Electrochemical Analysis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, People’s Republic of China
Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Wuhan National Laboratory for Optoelectronics, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
Funding
State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Huazhong University of Science and Technology · National Natural Science Foundation of China · Central People's Government of the People's Republic of China · Innovation Foundation of Shenzhen Government
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