Journal
ADVANCED ENERGY MATERIALS
Volume 9, Issue 3, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201803040
Keywords
fuel cells; intermetallic; nitride; ordered phase; oxygen reduction
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Funding
- National Key Research and Development Program of China [2017YFB0102900]
- National Natural Science Foundation of China [21606050, 21776104]
- Natural Science Foundation of Guangdong Province, China [2018A0303130239]
- Pearl River Science and Technology New Star Project [201806010039]
- Center for Nanophase Materials Sciences, at Oak Ridge National Laboratory by the Scientific User Facilities Division, U.S. Department of Energy
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The commercialization of fuel cell technologies requires a significant reduction in the amount of expensive platinum catalyst in the cathode while still maintaining high catalytic activity and stability. Herein a cost-effective, highly durable, and efficient catalyst consisting of ordered Fe3Pt nanoparticles supported by mesoporous Ti0.5Cr0.5N (Fe3Pt/Ti0.5Cr0.5N) is demonstrated. The Fe3Pt/Ti0.5Cr0.5N catalyst exhibits a five-fold increase in mass activity relative to a Pt/C catalyst at 0.9 V for the oxygen reduction reaction. More importantly, the catalyst shows a minimal loss of activity after 5000 potential cycles (9.7%). The enhanced activity of the ordered Fe3Pt/Ti0.5Cr0.5N catalyst, in combination with its enhanced stability, makes it very promising for the development of new cathode catalysts for fuel cells.
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