Mechano-catalysis - a novel method for overall water splitting

被引：87

作者：

Ikeda, S

Takata, T

Komoda, M

Hara, M

Kondo, JN

Domen, K

Tanaka, A

Hosono, H

Kawazoe, H

机构：

[1] Tokyo Inst Technol, Resources Utilizat Res Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Nikon Corp, Sagamihara, Kanagawa 2280828, Japan

[3] Tokyo Inst Technol, Mat Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1999年 / 1卷 / 18期

关键词：

D O I：

10.1039/a903543e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel finding of mechano-catalytic overall water splitting by metal oxides, a way to produce hydrogen by water decomposition, is reported. It was clearly revealed that some simple and mixed oxide powders such as NiO, Co3O4, Cu2O, Fe3O4, and CuMO2 (M=Al, Fe, Ga), when suspended in distilled water by magnetic stirring, decompose water into H-2 and O-2 catalytically. The observed mechano-catalytic overall water splitting was cycled by the conversion of mechanical energy supplied by rubbing these oxide powders against the bottom wall of the reaction vessel with the stirring rod. Typical efficiency of the mechanical-to-chemical energy conversion was estimated to be 4.3% (for NiO).

引用

页码：4485 / 4491

页数：7

共 14 条

[1]

AMOUYAL E, 1997, HOMOGENEOUS PHOTOCAT, V2

[2]

Gratzel M, 1983, ENERGY RESOURCES PHO

[3]

HARA M, UNPUB

[4] METAL-OXIDES AS HETEROGENEOUS CATALYSTS FOR OXYGEN EVOLUTION UNDER PHOTOCHEMICAL CONDITIONS [J].