Enhanced electrocatalytic properties in dye-sensitized solar cell via Pt/SBA-15 composite with optimized Pt constituent
Ding Nan,
Hongzhi Fan,
Altan Bolag,
Wenhui Liu,
Tana Bao
Affiliations
Ding Nan
Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Engineering Research Center of New Energy Storage Materials at Universities of Inner Mongolia Autonomous Region, College of Physics and Electronic Information, Inner Mongolia Normal University, No 81 Zhaowuda Road, Saihan district, Hohhot, 010022, China
Hongzhi Fan
Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Engineering Research Center of New Energy Storage Materials at Universities of Inner Mongolia Autonomous Region, College of Physics and Electronic Information, Inner Mongolia Normal University, No 81 Zhaowuda Road, Saihan district, Hohhot, 010022, China
Altan Bolag
Corresponding author.; Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Engineering Research Center of New Energy Storage Materials at Universities of Inner Mongolia Autonomous Region, College of Physics and Electronic Information, Inner Mongolia Normal University, No 81 Zhaowuda Road, Saihan district, Hohhot, 010022, China
Wenhui Liu
Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Engineering Research Center of New Energy Storage Materials at Universities of Inner Mongolia Autonomous Region, College of Physics and Electronic Information, Inner Mongolia Normal University, No 81 Zhaowuda Road, Saihan district, Hohhot, 010022, China
Tana Bao
Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Engineering Research Center of New Energy Storage Materials at Universities of Inner Mongolia Autonomous Region, College of Physics and Electronic Information, Inner Mongolia Normal University, No 81 Zhaowuda Road, Saihan district, Hohhot, 010022, China
The Low utilization and high cost of platinum counter electrode (CE) in the application of dye-sensitized solar cells has limited its large-scale manufacturing in the industry. Herein, a facile pyrolysis combination of Pt and SBA-15 molecular sieve (MS) formed 1.6–1.9 times higher amount and 2–3 times reduced dimension of Pt distributed within porous structure of SBA-15. The composite CE with 20 % of SBA-15 exhibited an enhanced power conversion efficiency of 9.31 %, exceeding that of absolute Pt CE (7.57 %). This superior performance owed to the promoted oxidation-reduction rate of I3−/I− pairs at the CE interface and the increased conductivity of CE materials attributed from well distributed Pt particles. This work has demonstrated the significance of utilizing porous molecular sieves for dispersing catalytic sites when designing a novel type of counter electrode and their application in DSSCs.
