From waste to energy and fuel: novel CuxNiy/CN catalysts from waste melamine resin for efficient nitrate reduction to ammonia - Gong, F; Hong, SH; Song, JM; Liu, CZ; Liu, SL; Feng, JJ; Wu, QW; Xiong, YL; Medic-Pejic, L; Cheng, Y; Zhang, ZQ (Journal Of Materials Chemistry a, 2025)