In this work, the nanomaterial Co3O4-WC-CN/rGO (CN is nitrogen-doped carbon; rGO is reduced graphene oxide), as an efficient alternative to platinum for the counter electrode (CE), has been prepared by the high temperature calcination of the Na6H2W12O40·H2O (H2W12) embedded metal-organic framework in argon gas and air atmosphere. It shows high catalytic activity as the CE in the dye-sensitized solar cells (DSSCs), which is due to the excellent catalytic activity of Co3O4-WC and high conductivity of rGO. The photoelectric conversion efficiency (PCE) of DSSC with Co3O4-WC-CN/rGO as the CE is 7.38%, which is superior to that of Pt as the CE (η = 6.85%).
Journal of Power Sources – Elsevier
Published: Mar 15, 2018
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