Work

Efficient Visible Light Photocatalytic CO2 Reforming of CH4

Year: 2015

Type: article

Abstract: The large energy requirement of CO 2 reforming of methane (CRM) has obstructed its application. Solar energy is a solution for the issue. Different from efficient photocatalytic splitting of water, photocatalysis for CRM exhibits a very low efficiency and employs only ultraviolet (UV) light. This letter reports an efficient visible-light photocatalytic CRM by combining Pt/black TiO 2 catalyst with light-diffuse-reflection-surface. Under visible light illumination by filtering UV light from AM 1.5G sunlight, H 2 and CO yields reached 71 and 158 mmol/h/g cat, with a quantum efficiency of 32.3% at 550 °C, and 129 and 370 mmol/h/g cat, with a quantum efficiency of 57.8% at 650 °C. Those yields are 3 orders of magnitude larger than the reported values.

Source: ACS Catalysis

DOI: 10.1021/acscatal.5b02653

Authors: Bing Han, Wei Wei, Liang Chang, Peifu Cheng, Yun Hang Hu

Institution: Michigan Technological University

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: green

Funders: National Science Foundation, Division of Chemical, Bioengineering, Environmental, and Transport Systems