文献类型：期刊文献

英文题名：Ni-polymer nanogel hybrid particles: A new strategy for hydrogen production from the hydrolysis of dimethylamine-borane and sodium borohydride

作者：Cai, Haokun[1,2];Liu, Liping[3];Chen, Qiang[4];Lu, Ping[1];Dong, Jian[1,2]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China;[3]Zhejiang Wanli Univ, Coll Biol & Environm Sci, Ningbo 315100, Zhejiang, Peoples R China;[4]Nanjing Univ, Coll Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China

年份：2016

卷号：99

起止页码：129

外文期刊名：ENERGY

收录：SCI-EXPANDED(收录号：WOS:000374800300013)、、EI(收录号：20161502224275)、Scopus(收录号：2-s2.0-84962420537)、WOS

基金：This work was supported by Department of Science and Technology of Zhejiang Province, China (2012C24003), Natural Science Foundation of Zhejiang Province, China (No. LY12E03001) and National Science Foundation of China (20974063).

语种：英文

外文关键词：Hydrogen energy; Dimethylamine-borane; Sodium borohydride; Nickel; Nanogel

外文摘要：Efficient non-precious metal catalysts are crucial for hydrogen production from borohydride compounds in aqueous media via hydrogen atoms in water. A method for preparing magnetic polymer nanoparticles is developed in this study based on the chemical deposition of nickel onto hydrophilic polymer nanogels. High-resolution transmission electron microscopic and XPS analyses show that Ni exists mainly in the form of NiO in nanogels. Excellent catalytic activities of the nanoparticles are demonstrated for hydrogen generation from the hydrolysis of dimethylamine-borane and sodium borohydride in which the initial TOF (turn-over frequencies) are 376 and 1919 h(-1), respectively. Kinetic studies also reveal an Arrhenius activation energy of 50.96 kJ mol(-1) for the hydrolysis of dimethylamine-borane and 47.82 kJ mol(-1) for the hydrolysis of sodium borohydride, which are lower than those catalyzed by Ru metal. Excellent reusability and the use of water for hydrogen production from dimethylamine-borane provide the additional benefit of using a hybrid catalyst. The principle illustrated in the present study offers a new strategy to explore polymer-transition metal hybrid particles for hydrogen energy technology. (C) 2016 Elsevier Ltd. All rights reserved.