- Title
- Bismuth-based free-standing electrodes for ambient-condition ammonia production in neutral media
- Creator
- Sun, Ying; Deng, Zizhao; Song, Xi-Ming; Li, Hui; Huang, Zihang; Zhao, Qin; Feng, Daming; Zhang, Wei; Liu, Zhaoqing; Ma, Tianyi
- Relation
- ARC.DE150101306 http://pLP160100927 http://purl.org/au-research/grants/arc/LP160100927
- Relation
- Nano-Micro Letters Vol. 12, Issue 1, no. 133
- Publisher Link
- http://dx.doi.org/10.1007/s40820-020-00444-y
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2020
- Description
- 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 Bi2O3 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 NH3 yield of 4.21 ± 0.14 μgNH3 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 6p band with the N 2p orbitals, 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.
- Subject
- N2 reduction; Bi2O3 nanoplate; electrocatalysis; free standing
- Identifier
- http://hdl.handle.net/1959.13/1455203
- Identifier
- uon:45067
- Identifier
- ISSN:2311-6706
- Rights
- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Language
- eng
- Full Text
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