Synthesis of Triple‐Layered Ag@Co@Ni Core–Shell Nanoparticles for the Catalytic Dehydrogenation of Ammonia Borane |
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| Authors: | Dr Fangyuan Qiu Dr Guang Liu Dr Li Li Dr Ying Wang Changchang Xu Dr Cuihua An Chengcheng Chen Dr Yanan Xu Yanan Huang Prof Yijing Wang Prof Lifang Jiao Prof Huatang Yuan |
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| Affiliation: | Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Key Laboratory of Advanced Energy Materials Chemistry (MOE), Institute of New Energy Material Chemistry, Tianjin Key Lab on Metal and Molecule‐Based Material Chemistry, Nankai University, Tianjin, 30007 (P.R. China), Fax: (+86)?22 23503639 |
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| Abstract: | Triple‐layered Ag@Co@Ni core–shell nanoparticles (NPs) containing a silver core, a cobalt inner shell, and a nickel outer shell were formed by an in situ chemical reduction method. The thickness of the double shells varied with different cobalt and nickel contents. Ag0.04@Co0.48@Ni0.48 showed the most distinct core–shell structure. Compared with its bimetallic core–shell counterparts, this catalyst showed higher catalytic activity for the hydrolysis of NH3BH3 (AB). The synergetic interaction between Co and Ni in Ag0.04@Co0.48@Ni0.48 NPs may play a critical role in the enhanced catalytic activity. Furthermore, cobalt–nickel double shells surrounding the silver core in the special triple‐layered core–shell structure provided increasing amounts of active sites on the surface to facilitate the catalytic reaction. These promising catalysts may lead to applications for AB in the field of fuel cells. |
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| Keywords: | cobalt hydrolysis layered compounds nickel silver |
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