Journal
CHEMICAL COMMUNICATIONS
Volume 59, Issue 12, Pages 1625-1628Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc06261e
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In this study, a high-efficiency electrocatalyst Cu@TiO2/TP was reported for NO2- reduction to produce high-value ammonia (NH3). The Cu@TiO2/TP catalyst exhibited outstanding catalytic performance in neutral solution, with a high NH3 yield (760.5 mu mol h(-1) cm(-2)) and excellent faradaic efficiency (95.3%). It also demonstrated good electrochemical stability during cyclic tests and long-term electrolysis.
Electrochemical nitrite (NO2-) reduction is a potential and sustainable route to produce high-value ammonia (NH3), but it requires highly active electrocatalysts. Herein, Cu nanoparticles anchored on a TiO2 nanobelt array on a titanium plate (Cu@TiO2/TP) are reported as a high-efficiency electrocatalyst for NO2--to-NH3 conversion. The designed Cu@TiO2/TP catalyst exhibits outstanding catalytic performance toward the NO2-RR, with a high NH3 yield of 760.5 mu mol h(-1) cm(-2) (237.7 mu mol h(-1) mg(cat.)(-1)) and an excellent faradaic efficiency of 95.3% in neutral solution. Meanwhile, it also presents strong electrochemical stability during cyclic tests and long-term electrolysis.
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