使用二氧化钛光催化剂在氢氧化镍中实现远程储能。

Remote energy storage in Ni(OH)2 with TiO2 photocatalyst.

作者信息

Takahashi Yukina, Tatsuma Tetsu

机构信息

Institute of Industrial Science, University of Tokyo, Komaba, Tokyo, 153-8505, Japan.

出版信息

Phys Chem Chem Phys. 2006 Jun 21;8(23):2716-9. doi: 10.1039/b604545f. Epub 2006 May 12.

DOI:10.1039/b604545f

PMID:16763703

Abstract

Oxidative energy generated by UV-irradiated TiO2 photocatalyst was stored in Ni(OH)2 that was 12.5-50 microm apart from the TiO2. It is likely that active oxygen species generated on TiO2 diffused into the gas phase and oxidized Ni(OH)2. Loading the TiO2 with Pt accelerated the remote energy storage by an order of magnitude. It was revealed that the stored energy could be taken out and used chemically or electrochemically. The oxidized Ni(OH)2 was reduced by gaseous formaldehyde, formate, ethanol and H2O2.

摘要

紫外线照射的二氧化钛光催化剂产生的氧化能存储在与二氧化钛相距12.5至50微米的氢氧化镍中。二氧化钛上产生的活性氧物种可能扩散到气相中并氧化了氢氧化镍。用铂负载二氧化钛使远程能量存储加速了一个数量级。结果表明，存储的能量可以通过化学或电化学方式取出并加以利用。氧化的氢氧化镍可被气态甲醛、甲酸盐、乙醇和过氧化氢还原。