Highly efficient photochemical HCOOH production from CO2 and water using an inorganic system

被引：19

作者：

Yotsuhashi, Satoshi ^{[1
]}

Hashiba, Hiroshi ^{[1
]}

Deguchi, Masahiro ^{[1
]}

Zenitani, Yuji ^{[1
]}

Hinogami, Reiko ^{[1
]}

Yamada, Yuka ^{[1
]}

Deura, Momoko ^{[2
]}

Ohkawa, Kazuhiro ^{[2
]}

机构：

[1] Panasonic Corp, Adv Technol Res Lab, Nagaokakyo, Kyoto 6190237, Japan

[2] Tokyo Univ Sci, Dept Appl Phys, Tokyo 1628601, Japan

来源：

AIP ADVANCES | 2012年 / 2卷 / 04期

关键词：

SILICATE SIEVE; ELECTROCHEMICAL REDUCTION; ALGAN/GAN HETEROSTRUCTURE; PHOTOCATALYTIC CONVERSION; METAL-ELECTRODES; CARBON-DIOXIDE; SOLAR FUELS; POLARIZATION; TRANSISTORS; CHARGE;

D O I：

10.1063/1.4769356

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have constructed a system that uses solar energy to react CO2 with water to generate formic acid (HCOOH) at an energy conversion efficiency of 0.15%. It consists of an AlGaN/GaN anode photoelectrode and indium (In) cathode that are electrically connected outside of the reactor cell. High energy conversion efficiency is realized due to a high quantum efficiency of 28% at 300 nm, attributable to efficient electron-hole separation in the semiconductor's heterostructure. The efficiency is close to that of natural photosynthesis in plants, and what is more, the reaction product (HCOOH) can be used as a renewable energy source. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4769356]

引用

页数：5

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