Efficient Visible Light Photocatalytic CO2 Reforming of CH4

被引：305

作者：

Han, Bing ^{[1
]}

Wei, Wei ^{[1
]}

Chang, Liang ^{[1
]}

Cheng, Peifu ^{[1
]}

Hu, Yun Hang ^{[1
]}

机构：

[1] Michigan Technol Univ, Dept Mat Sci & Engn, 1400 Townsend Dr, Houghton, MI 49931 USA

来源：

ACS CATALYSIS | 2016年 / 6卷 / 02期

基金：

美国国家科学基金会;

关键词：

photocatalysis; carbon dioxide; methane; visible light; titanium dioxide; CARBON-DIOXIDE; HYDROGEN-PRODUCTION; PARTIAL OXIDATION; SYNTHESIS GAS; WATER; REDUCTION; TIO2; CONVERSION; METHANE; TEMPERATURE;

D O I：

10.1021/acscatal.5b02653

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

The large energy requirement of CO2 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 TiO2 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 degrees C, and 129 and 370 mmol/h/g(cat), with a quantum efficiency of 57.8% at 650 degrees C. Those yields are 3 orders of magnitude larger than the reported values.

引用

页码：494 / 497

页数：4

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