Nano-Cu catalyze hydrogen production from formaldehyde solution at room temperature

被引：71

作者：

Bi, Yingpu ^{[1
,2
]}

Lu, Gongxuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 09期

基金：

中国国家自然科学基金;

关键词：

nano-Cu particles; formaldehyde hydrogen generation; alkaline solution;

D O I：

10.1016/j.ijhydene.2008.02.064

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：

In this paper, high efficient production of CO-free hydrogen from formaldehyde (HCHO) aqueous solution catalyzed by various nano-metal catalysts was reported. it was found that nano-metal catalyst could catalyze formaldehyde into hydrogen and formic acid under room temperature and atmospheric pressure. Among Pt, Au, Ni, and Cu nano-metal particles, nano-Cu catalyst exhibited the highest activity and the long-term stability. The temperature seems influence the reaction significantly. For example, when the temperature was increased from 0 to 60 degrees C, the rate of hydrogen production increases from 2.34 to 140 mL min(-1) g(-1) catalyst over nano-Cu catalyst. Hydrogen was produced via the formic acid intermediate. When NaOH concentration was high, Cannizzaro reaction occurred, which resulted in the retardation of hydrogen generation at high concentration of NaOH and HCHO. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：2225 / 2232

页数：8

共 27 条

[1] An ultrasafe hydrogen generator: aqueous, alkaline borohydride solutions and Ru catalyst [J].