Template-GuidedSynthesis of Cubic Cu–Rh AlloyNanoframes for Electrochemical Nitrite-to-Ammonia Conversion via TandemCatalysis

Yuanyuan Yang; Xinyue Wang; Chun‐yang Zhang; Henglei Jia

doi:10.1021/acs.inorgchem.6c03072

August 17, 2026Inorganic Chemistry

Template-GuidedSynthesis of Cubic Cu–Rh AlloyNanoframes for Electrochemical Nitrite-to-Ammonia Conversion via TandemCatalysis

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Key Points

To synthesize structurally stable cubic copper-rhodium alloy nanoframes and evaluate their tandem electrocatalytic performance for reducing nitrite to ammonia.
Synthesized cubic CuxRhy nanoframes by selectively etching low-energy facets of Cu nanocubes using a Cl–/O2 pair, followed by galvanic replacement of Cu with Rh at frame edges and vertices.
Evaluated electrocatalytic nitrite reduction reaction (NO2RR) performance and characterized intermediate reaction steps in an electrochemical system.
Cu24Rh76 nanoframes achieved an NH3 Faradaic efficiency of 99.6% at 0 V vs. the reversible hydrogen electrode (RHE).
Catalysts produced an NH3 yield rate of 676.7 mmol h–1 g–1 at −0.4 V vs. RHE.
Cu sites adsorbed and activated NO2– into *NO intermediates, while adjacent Rh sites generated *H species that migrated to complete hydrogenation to NH3.

Implication

Experimental study demonstrates efficient electrochemical nitrite-to-ammonia conversion using cubic copper-rhodium nanoframes, highlighting a robust tandem mechanism for sustainable synthesis.

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Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/6a8563fe03308d306e2d7824 https://doi.org/10.1021/acs.inorgchem.6c03072

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Template-GuidedSynthesis of Cubic Cu–Rh AlloyNanoframes for Electrochemical Nitrite-to-Ammonia Conversion via TandemCatalysis

Key Points

Implication

Discussion

Cite This Study

Template-GuidedSynthesis of Cubic Cu–Rh AlloyNanoframes for Electrochemical Nitrite-to-Ammonia Conversion via TandemCatalysis

Key Points

Implication

Discussion

Cite This Study

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