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Cited by 369

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Sub-nm RuOx Clusters on Pd Metallene for Synergistically Enhanced Nitrate Electroreduction to Ammonia

Li, Xiaotian, Shen, Peng, Li, Xingchuan, Ma, Dongwei, Chu, Ke·2023·ACS Nano

Abstract

The electrochemical nitrate reduction to ammonia reaction (NO 3 RR) has emerged as an appealing route for achieving both wastewater treatment and ammonia production. Herein, sub-nm RuO x clusters anchored on a Pd metallene (RuO x /Pd) are reported as a highly effective NO 3 RR catalyst, delivering a maximum NH 3 -Faradaic efficiency of 98.6% with a corresponding NH 3 yield rate of 23.5 mg h –1 cm –2 and partial a current density of 296.3 mA cm –2 at −0.5 V vs RHE. Operando spectroscopic characterizations combined with theoretical computations unveil the synergy of RuO x and Pd to enhance the NO 3 RR energetics through a mechanism of hydrogen spillover and hydrogen-bond interactions. In detail, RuO x activates NO 3 – to form intermediates, while Pd dissociates H 2 O to generate *H, which spontaneously migrates to the RuO x /Pd interface via a hydrogen spillover process. Further hydrogen-bond interactions between spillovered *H and intermediates makes spillovered *H desorb from the RuO x /Pd interface and participate in the intermediate hydrogenation, contributing to the enhanced activity of RuO x /Pd for NO 3 – -to-NH 3 conversion.

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Metadata

Authors
Li, X., Shen, P., Li, X., Ma, D., & Chu, K.
Venue
ACS Nano
Published
2023-01-11
Volume
17
Issue
2
Pages
1081-1090
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W4315631276
Cited by
369
References
49
FWCI
17.14
Type
journal article
Language
en
Open access
closed

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