Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 132, Issue -, Pages 606-614Publisher
ELSEVIER
DOI: 10.1016/j.solmat.2014.10.015
Keywords
CO2 reduction; Photoelectrochemical cell; Pt-RGO cathode; Carbon atom conversion
Funding
- National Natural Science Foundation of China [51176163, 51476141]
- Special Funds for Major State Basic Research Projects of China [2010CB227001]
- National High Technology R&D Program of China [2012AA050101]
- International Sci. & Tech. Cooperation Program of China [2012DFG61770]
- Zhejiang Provincial Natural Science Foundation of China [LR14E060002]
- Program for New Century Excellent Talents in University [NCET-110446]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110101110021]
Ask authors/readers for more resources
This study aimed to determine the optimum conditions required to increase the carbon atom conversion rate in a Pt-RGOIIPt-TNT photoelectrochemical cell. The effects of Pt-RGO reduction time on CO2 conversion, voltage applied through the cell, catholyte pH, and pore size of nickel foam as a catalyst support were investigated. The conversion rate, of C atoms initially increased and then decreased with increasing Pt-RGO reduction time, increasing electrolyte pH, and decreasing nickel foam pore size. Although carbon atom conversion showed sustainable growth as the applied voltage increased, the current efficiency of CO2 reduction products decreased because of enhanced proton interference when the voltage applied through the cell exceeds 2 V. A maximum carbon atom conversion rate of 1500 nmol/(cm(2) h) was obtained by Pt-RGO reduction for 24 h when a 2 V voltage was applied through the cell, the catholyte pH was 8.8, and nickel foam with an average pore size of 160 mu m was used as a support. Under optimum conditions, the liquid product selectivity of CO2 reduction reached 99%. The results of the study indicate that RGO-based catalysts have potential use as blueprints for CO2 reduction. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available