Citation:
Xue Chen, Xuemin Li, Pengkun Wei, Xiaoyong Ma, Qinlin Yu, Lu Liu. Selective synthesis of Sb2S3 nanostructures with different morphologies for high performance in dye-sensitized solar cells[J]. Chinese Journal of Catalysis,
;2020, 41(3): 435-441.
doi:
S1872-2067(19)63493-5
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In this work, we initially synthesized Sb2S3 with uniform flower-like structures via a facile hydrothermal method through the modification of the Sb source and pH value. Afterward, Sb2S3 with a nanosheet structure was successfully synthesized on reduced graphene oxide (Sb2S3@RGO). The flower-like Sb2S3 and the Sb2S3@RGO nanosheets were tested as the counter electrode (CE) of dye-sensitized solar cells, and the latter exhibited a higher electrocatalytic property than the former owing to the introduction of graphene. The results from electrochemical tests indicated that the as-prepared Sb2S3@RGO nanosheets possess higher catalytic activity, charge-transfer ability, and electrochemical stability than Sb2S3, RGO, and Pt CEs. More notably, the power conversion efficiency of Sb2S3@RGO reached 8.17%, which was higher than that of the standard Pt CE (7.75%).
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