Theoretical Evaluation of Highly Efficient Nitrate Reduction to Ammonia on InBi

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dc.contributor.authorFang, Q.
dc.contributor.authorYin, H.
dc.contributor.authorMao, X.
dc.contributor.authorHan, Y.
dc.contributor.authorYan, C.
dc.contributor.authorO’Mullane, A.P.
dc.contributor.authorDu, A.
dc.date.issued2023
dc.description.abstractElectrocatalytic reduction of nitrate to ammonia has become a popular approach for wastewater treatment and ammonia production. However, the development of highly efficient electrocatalysts remains a great challenge. Herein, we systematically studied the potential of InBi for nitrate reduction to ammonia (NRA) based on density functional theory (DFT) calculations. Our results reveal that InBi exhibits high activity for NRA via an O-end pathway, where the free energy evolution of all intermediates is downhill in the most favorable elementary steps. The activation of nitrate originates from the strong orbital hybridization between oxygen and indium atoms, leading to an enhanced charge transfer as well as NO<sub>3</sub><sup>-</sup> adsorption. In particular, the competing hydrogen evolution reaction (HER) is effectively suppressed due to the weak adsorption of proton. Our study not only proves the great electrocatalytic potential of InBi as a novel catalyst for NRA but also points out a new way to design NRA electrocatalysts for practical applications.
dc.description.statementofresponsibilityQingchao Fang, Hanqing Yin, Xin Mao, Yun Han, Cheng Yan, Anthony P. O, Mullane, Aijun Du
dc.identifier.citationJournal of Physical Chemistry Letters, 2023; 14(9):2410-2415
dc.identifier.doi10.1021/acs.jpclett.2c03900
dc.identifier.issn1948-7185
dc.identifier.issn1948-7185
dc.identifier.urihttps://hdl.handle.net/2440/142887
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/DP210100721
dc.rights© 2023 American Chemical Society
dc.source.urihttp://dx.doi.org/10.1021/acs.jpclett.2c03900
dc.subjectAdsorption; Ammonia; Anions; Catalysts; Redox reactions
dc.titleTheoretical Evaluation of Highly Efficient Nitrate Reduction to Ammonia on InBi
dc.typeJournal article
pubs.publication-statusPublished

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