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Cobalt sulfide (CoS)/graphene composites are prepared by a facile one-pot hydrothermal method in the presence of graphene oxide and used as a low-cost substitute for Pt to fabricate the counter electrode in dye-sensitized solar cells. TEM, SEM and AFM characterizations show that CoS nanoparticles are highly dispersed on the surface of graphene nanosheets. This unique nanostructure affords a promising...
The porous carbon with a high surface area is prepared from rice husk through pyrolysis and chemical activation and explored as the counter electrode of dye-sensitized solar cells. Structure and texture analysis reveals that the as-prepared porous carbon has a hierarchical porous structure containing large-size mesopores and abundant micropores. Electrochemical studies indicate that the obtained hierarchical...
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