Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 39, Pages 33153-33161Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b09297
Keywords
Rh nanoparticle; F-doped graphene; hydrogen evolution reaction; formic acid oxidation reaction; proton-adsorption
Funding
- National Key Research and Development Program of China [2017YFA0204800]
- 111 Project
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- National Natural Science Foundation of China [51725204, 51572179, 21471106, 21771132, 21501126, 21603155]
- Six Talent Peak Project in Jiangsu Province [XNY-042]
- Innovative and Entrepreneurial Doctor (World-Famous Universities) in Jiangsu Province
- Collaborative Innovation Center of Suzhou Nano Science Technology
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Highly efficient electrocatalysis for clean, efficient, and sustainable energy supply, such as hydrogen evolution reaction (HER) and formic acid oxidation reaction (FAOR), has drawn enthusiastic and worldwide attention. Universal and efficient electrocatalysts for these reactions are essential elements for the development of renewable and clean energy technologies. Herein, we show the design and fabrication of the rhodium nanoparticles modified fluorine-doped graphene (Rh/F-graphene) catalyst using silicon nanowires (SiNWs) as the sacrifice template. The optimized Rh/F-graphene catalyst (Rh/F-graphene-2) has a low Rh mass fraction of 9.4% and F doping of 4.0%. The mean diameter of Rh is 9.39 nm. Rh/F-graphene-2 serves as a proton-adsorption-dominated multifunctional electrocatalyst for both HER and FAOR with performance superior to 20 wt % Pt/C in acidic solution. In addition, due to the doping of fluorine, the stability of Rh/F-graphene-2 catalyst greatly improves and is the best among all the compared electrocatalysts. This design for multifunctional catalysts could greatly increase the utilization ratio of Rh, which may provide a new avenue for the preparation of other noble metal-based catalysts.
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