以镍盐与水合肼为起始原料,采用外加磁场辅助的水热法合成了表面具有纳米级刺状结构的一维金属镍线.向体系中引入十六烷基三甲基溴化铵(CTAB)作为包裹剂,可以合成表面光滑的金属镍线.对比大块镍,金属镍线的矫顽力得到了显著的增强.研究结果表明,外加磁场是线状结构形成的关键,而在镍核表面的CTAB吸附是控制表面形貌的重要因素.以甲基异丁基甲酮加氢制备甲基异丁基甲醇为探针反应,考察了所合成材料的加氢催化性能.结果表明,金属镍材料的一维结构与表面的纳米级刺状结构均有助于提高镍基催化剂的加氢催化活性.
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