| Au/Ag/Ni三金属纳米溶胶的催化制氢性能研究 |
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| 作者姓名： | 张远卓 宋述鹏 龚铁夫 王军凯 张海军 |
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| 作者单位： | 武汉科技大学省部共建耐火材料与冶金国家重点实验室;武汉科技大学材料与冶金学院 |
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| 基金项目： | 国家自然科学基金资助项目(50901053,9). |
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| 摘 要： | 采用化学共还原法制备了聚乙烯吡咯烷酮(PVP)稳定的Au/Ag/Ni三金属纳米溶胶颗粒,通过UVVis、SEM/EDS、TEM等对所合成的纳米溶胶颗粒进行表征,研究了化学组成对其催化水解NaBH_4制氢活性的影响。结果表明,所制Au/Ag/Ni三金属纳米颗粒的平均粒径约为2.0nm,其中Au_(10)Ag_(40)Ni_(50)三金属纳米颗粒的催化活性最佳,30℃时其催化活性达2548mol_(H2)/(mol_(Pt)·h)。密度泛函理论(DFT)的计算结果表明,Au/Ag/Ni三金属纳米团簇内部由于产生电荷转移效应,原子间的电子转移使得Ag带正电而Au带负电,带电原子成为催化水解NaBH_4的活性中心,使得材料具有优异的催化制氢性能。
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| 关 键 词： | Au/Ag/Ni 三金属纳米颗粒 NaBH4 催化制氢 催化活性 |
| 收稿时间： | 2018/11/9 0:00:00 |
Catalytic performance of Au/Ag/Ni trimetallic nanosol for hydrogen production |
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| Authors: | Zhang Yuanzhuo Song Shupeng Gong Tiefu Wang Junkai and Zhang Haijun |
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| Institution: | 1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; 2 College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China,1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; 2 College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China,1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; 2 College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China,1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; 2 College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China and 1 State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China; 2 College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | |
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| Keywords: | Au/Ag/Ni trimetallic nanoparticle catalytic hydrogen production catalytic activity |
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