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Performance of Ni-Cu bimetallic co-catalyst g-C3N4 nanosheets for improving hydrogen evolution
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Fig. 3.. XPS analysis of CNNC-15 composite: (a) XPS survey spectrum of CNNC-15 and pure g-C3N4; High-resolution XPS spectrum of C 1s (b), N 1s (c), O 1s (d), Ni 2p (e) and Cu 2p (f) that belongs to CNNC-15 and pure g-C3N4, respectively. |
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