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- Title
An Amorphous Noble‐Metal‐Free Electrocatalyst that Enables Nitrogen Fixation under Ambient Conditions.
- Authors
Lv, Chade; Yan, Chunshuang; Chen, Gang; Ding, Yu; Sun, Jingxue; Zhou, Yansong; Yu, Guihua
- Abstract
Abstract: N2 fixation by the electrocatalytic nitrogen reduction reaction (NRR) under ambient conditions is regarded as a potential approach to achieve NH3 production, which still heavily relies on the Haber–Bosch process at the cost of huge energy and massive production of CO2. A noble‐metal‐free Bi4V2O11/CeO2 hybrid with an amorphous phase (BVC‐A) is used as the cathode for electrocatalytic NRR. The amorphous Bi4V2O11 contains significant defects, which play a role as active sites. The CeO2 not only serves as a trigger to induce the amorphous structure, but also establishes band alignment with Bi4V2O11 for rapid interfacial charge transfer. Remarkably, BVC‐A shows outstanding electrocatalytic NRR performance with high average yield (NH3: 23.21 μg h−1 mg−1cat., Faradaic efficiency: 10.16 %) under ambient conditions, which is superior to the Bi4V2O11/CeO2 hybrid with crystalline phase (BVC‐C) counterpart.
- Subjects
ELECTROCATALYSTS; NITROGEN fixation; NITROGEN reduction; HABER-Bosch process; CARBON dioxide; CRYSTAL defects
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 21, p6181
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201801538