Performance of Ni-Cu bimetallic co-catalyst g-C3N4 nanosheets for improving hydrogen evolution
Zhiliang Jina,b,c,*(), Lijun Zhanga,b,c,*()

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Fig. 2.. XRD patterns (a, b, c) and FT-IR (d) of bare g-C3N4 (CN), CNN-n (n = 5, 10, 15, 20), CNC and CNNC-x (x = 5, 10, 15, 20) samples.