Shaggy-like Ru-clusters decorated core-shell metal-organic framework-derived CoOx@NPC as high-efficiency catalyst for NaBH4 hydrolysis |
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| Authors: | Shasha Dou Wanyu Zhang Yuting Yang Shuqing Zhou Xianfa Rao Puxuan Yan Tayirjan Taylor Isimjan Xiulin Yang |
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| Affiliation: | 1. Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China;2. School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China;3. Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia |
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| Abstract: | Achieving high catalytic performance with the lowest possible amount of noble metal is critical for any catalytic applications. Herein, we report a controllable method of preparing low Ru loaded, N-doped porous carbon embedded with cobalt oxide species (Ru/CoOx@NPC) using core-shell metal-organic framework (MOF) as a template. The optimized catalyst exhibits a highly powerful yet stable performance of H2 production through sodium borohydride (NaBH4) hydrolysis. The Ru/CoOx@NPC catalyst shows a fast H2 generation rate (8019.5 mL min?1 gcat?1), high turnover frequency (1118.6 mol min?1 molRu?1), and reusability. The carbonized ZIF-8 core and the ZIF-67 outer shell supplies a porous carbon moiety that not only improves the conductivity and but also provides uniform distribution of the active sites. The XPS analysis indicates that there is a strong electronic interaction between Co species and Ru species. The superior catalytic performance can be attributable to the large specific surface area as well as the synergy between Co-oxide and Ru clusters. |
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| Keywords: | Metal-organic frameworks N-doped porous carbon Synergistic effect Hydrogen generation |
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