Heterogenous Cu@ZrO2 nanofibers enable efficient electrocatalytic nitrate reduction to ammonia under ambient conditions. Issue 99 (29th November 2022)

• Record Type: Journal Article
• Authors: Xia, Jiaojiao; Du, Hongting; Dong, Shuyue; Luo, Yongsong; Liu, Qian; Chen, Jun Song; Guo, Haoran; Li, Tingshuai
• Is Part Of: Chemical communications. Volume 58:Issue 99(2022)
• Page Start: 13811
• Page End: 13814
• Publication Date: 2022-11-29
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc05331d
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Heterogenous Cu@ZrO2 nanofibers as an efficient and durable electrocatalyst with boosted catalytic activity for ambient nitrate reduction to ammonia achieves a large NH3 yield of 15.4 mg h −1 mg −1 cat . and a high faradaic efficiency of 67.6%. Abstract : In this study, we construct a Cu@ZrO2 heterogenous structure as a new catalyst that achieves a large NH3 yield of 15.4 mg h −1 mg −1 cat . and a high faradaic efficiency of 67.6% at −0.7 V vs. RHE in 0.1 M PBS with 0.1 M NaNO3, and it also shows excellent electrochemical durability and structural stability. Theoretical calculations reveal an extremely low adsorption energy of −1.54 eV at Cu surfaces and Cu can significantly reduce the applied overpotential and correspondingly promote the catalytic activity.