Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 1, Pages 122-126Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201308620
Keywords
electrocatalysis; formic acid; fuel cells; oxidation; nickel
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Funding
- National Basic Research Program of China (973 Program) [2012CB215500, 2012CB932800]
- National High Technology Research and Development Program of China (863 Program) [2012AA053401]
- Recruitment Program of Foreign Experts [WQ20122200077]
- National Natural Science Foundation of China [20933004, 21073180]
- Strategic priority research program of CAS [XDA0903104]
- Competence Center for Energy and Mobility (CCEM)
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The direct formic acid fuel cell is an emerging energy conversion device for which palladium is considered as the state-of-the-art anode catalyst. In this communication, we show that the activity and stability of palladium for formic acid oxidation can be significantly enhanced using nickel phosphide (Ni2P) nanoparticles as a cocatalyst. X-ray photoelectron spectroscopy (XPS) reveals a strong electronic interaction between Ni2P and Pd. A direct formic acid fuel cell incorporating the best Pd-Ni2P anode catalyst exhibits a power density of 550mWcm(-2), which is 3.5times of that of an analogous device using a commercial Pd anode catalyst.
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