Abstract
Electrochemical nitrite (NO
) reduction is a potential and sustainable route to produce high-value ammonia (NH
), but it requires highly active electrocatalysts. Herein, Cu nanoparticles anchored on a TiO
nanobelt array on a titanium plate (Cu@TiO
/TP) are reported as a high-efficiency electrocatalyst for NO
-to-NH
conversion. The designed Cu@TiO
/TP catalyst exhibits outstanding catalytic performance toward the NO
RR, with a high NH
yield of 760.5 μmol h
cm
(237.7 μmol h
mg
) 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.