镍基双金属纳米颗粒的制备方法  

Preparation methods of nickel-based bimetallic nanoparticle

作　　者：刘玉蕾 徐广锋 侯永江[1] 国洁[1] 李博[1] Liu Yulei1,Xu Guangfeng2,Hou Yongjiang1,Guo Jie1,Li Bo1(1. School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; 2. Hengshui Environmental Monitoring Center, Hengshui 053000, China)

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018 [2]衡水市环境监控中心,河北衡水053000

出　　处：《煤炭与化工》2018年第7期126-129,140,共5页Coal and Chemical Industry

基　　金：河北省自然基金项目(B2018208188);河北省重大科技成果转化专项项目资助(18041409Z)

摘　　要：镍纳米颗粒在高效催化剂、光吸收材料、传感器等领域具有广泛的应用前景,掺杂金属元素不仅可以提高镍基催化剂中金属镍粒子的还原能力和降低催化剂的活化温度,且形成的双金属活性位催化剂能够抑制催化剂的积碳,因此,镍基双金属纳米颗粒能够提高催化剂的活性和稳定性。介绍了目前国内外制备镍基双金属纳米颗粒的主要工艺方法,即化学还原法、浸渍法、溶胶-凝胶法、化学镀法及置换反应法,简述了其优缺点,分析了其未来的发展方向。提出了今后研究的热点是优化镍基双金属纳米颗粒的结构、金属与载体相互作用、金属镍的粒径和分散度,制备高活性和高稳定性的镍基催化剂。Nickel nanoparticles have wide application prospects in the fields of high efficiency catalysts, light absorbing materials, sensors, and other fields. The metal elements doped in the nickel nanoparticles can not only improve the reduction ability of the nickel metal particles in the nickel-based catalyst and reduce the activation temperature of the catalyst, but also the formation of bimetallic active site catalyst can inhibit the carbon deposition of the catalyst. Therefore,nickel-based bimetallic nanoparticles can improve the activity and stability of the catalyst. The main process methods were introduced for preparing nickel-based bimetallic nanoparticles at home and abroad, namely chemical reduction,impregnation, sol-gel, electroless plating, and displacement reaction method. Their advantages and disadvantages were briefly described, and the future development direction was analyzed. It is proposed that the focus of future research is to optimize the structure of nickel-based bimetallic nanoparticles, the interaction between the metal and the carrier, the particle size and dispersion of nickel, to prepare the high activity and stability of nickel-based catalysts.

关 键 词：镍基双金属纳米颗粒 金属元素 镍基催化剂 制备方法 发展方向 

分 类 号：TQ426.8[化学工程]