Co9Se8 Nanosheets Electrodes： Drop-Cast versus in situ Growth  

作　　者：Hong Sun Gang Wang Zhong-Sheng Wang 

机构地区：[1]Department of Chemistry, Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, China

出　　处：《Chinese Journal of Chemistry》2017年第5期645-650,共6页中国化学（英文版）

摘　　要：Co9Se8 nanosheets are synthesized via a solvothermal reaction.Thin films of Co9Se8 nanosheets are respectively fabricated through drop-cast and in situ growth for use as the electrocatalyst in dye-sensitized solar cells （DSSCs）.Comparative studies reveal that the in situ growth Co9Se8 nanosheets film exhibits higher electrocatalytic activity for the electrocatalytic reduction of triiodide to iodide and better electrochemical stability than the drop-casted film.When applied as the counter electrode in DSSCs,the in situ growth film yields higher power conversion efficiency （8.65%） than the drop-casted film （5.87%） and even outperforms the reference Pt electrode （8.16%） under comparable conditions.Co9Se8 nanosheets are synthesized via a solvothermal reaction.Thin films of Co9Se8 nanosheets are respectively fabricated through drop-cast and in situ growth for use as the electrocatalyst in dye-sensitized solar cells （DSSCs）.Comparative studies reveal that the in situ growth Co9Se8 nanosheets film exhibits higher electrocatalytic activity for the electrocatalytic reduction of triiodide to iodide and better electrochemical stability than the drop-casted film.When applied as the counter electrode in DSSCs,the in situ growth film yields higher power conversion efficiency （8.65%） than the drop-casted film （5.87%） and even outperforms the reference Pt electrode （8.16%） under comparable conditions.

关 键 词：cobalt selenide nanosheets cathode drop-cast in situ growth dye-sensitized solar cell 

分 类 号：O[理学]