Journal article
Boosting the activity of Fe-N-x moieties in Fe-N-C electrocatalysts via phosphorus doping for oxygen reduction reaction
Science China materials, Vol.63(6), pp.965-971
06/01/2020
Abstract
The Fe-N-C material is a promising non-noble-metal electrocatalyst for oxygen reduction reaction (ORR). Further improvement on the ORR activity is highly desired in order to replace Pt/C in acidic media. Herein, we developed a new-type of single-atom Fe-N-C electrocatalyst, in which Fe-N-x active sites were modified by P atoms. The half-wave potential of the optimized material reached 0.858 V, which is 23 mV higher than that of the pristine one in a 0.1 mol L-1 HClO4 solution. Density functional theory (DFT) calculations revealed that P doping can reduce the thermodynamic over potential of the rate determining step and consequently improve the ORR activity.
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Details
- Title
- Boosting the activity of Fe-N-x moieties in Fe-N-C electrocatalysts via phosphorus doping for oxygen reduction reaction
- Creators
- Jin-Cheng Li - Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USAHong Zhong - Washington State UniversityMingjie Xu - University of California, IrvineTao Li - Northern Illinois UniversityLiguang Wang - Northern Illinois UniversityQiurong Shi - Washington State UniversityShuo Peng - Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USAZhaoyuan Lyu - Washington State UniversityDong Liu - Washington State UniversityDan Du - Washington State UniversityScott P. Beckman - Washington State UniversityXiaoqing Pan - University of California, IrvineYuehe Lin - Washington State UniversityMinhua Shao - Hong Kong University of Science and Technology
- Publication Details
- Science China materials, Vol.63(6), pp.965-971
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Science Press
- Number of pages
- 7
- Grant note
- NIU start-up fund 2017YFB0102900 / National Key R&D Program of China DE-AC02-06CH11357 / U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) N_HKUST610117 / Research Grant Council of Hong Kong Special Administrative Region; Hong Kong Research Grants Council WSU start-up fund
- Identifiers
- 99901227642601842
- Language
- English
- Resource Type
- Journal article