Journal
NANO-MICRO LETTERS
Volume 12, Issue 1, Pages -Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-020-00444-y
Keywords
N(2)reduction; Bi(2)O(3)nanoplate; Electrocatalysis; Free-standing
Funding
- Liaoning Revitalization Talents Program-Pan Deng Scholars [XLYC1802005]
- Liaoning BaiQianWan Talents Program
- National Science Fund of Liaoning Province for Excellent Young Scholars
- Science and Technology Innovative Talents Support Program of Shenyang [RC180166]
- Australian Research Council (ARC) [DE150101306, LP160100927]
- Faculty of Science Strategic Investment Funding of University of Newcastle
- CSIRO Newcastl Energy Centre
- Australian Research Council [DE150101306] Funding Source: Australian Research Council
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Electrocatalytic nitrogen reduction reaction is a carbon-free and energy-saving strategy for efficient synthesis of ammonia under ambient conditions. Here, we report the synthesis of nanosized Bi(2)O(3)particles grown on functionalized exfoliated graphene (Bi2O3/FEG) via a facile electrochemical deposition method. The obtained free-standing Bi2O3/FEG achieves a high Faradaic efficiency of 11.2% and a large NH(3)yield of 4.21 +/- 0.14 mu gNH(3) h(-1) cm(-2)at - 0.5 V versus reversible hydrogen electrode in 0.1 M Na2SO4, better than that in the strong acidic and basic media. Benefiting from its strong interaction of Bi 6pband with the N 2porbitals, binder-free characteristic, and facile electron transfer, Bi2O3/FEG achieves superior catalytic performance and excellent long-term stability as compared with most of the previous reported catalysts. This study is significant to design low-cost, high-efficient Bi-based electrocatalysts for electrochemical ammonia synthesis.
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