Synthesis of ZIF-8 derived porous carbon/NiS hexahedral composite and its application in improving the electrochemical hydrogen storage properties of Co–P material
International Journal of Hydrogen Energy, ISSN: 0360-3199, Vol: 47, Issue: 47, Page: 20572-20584
2022
- 23Citations
- 21Captures
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Article Description
Thermal treatment of zinc-based MOF (ZIF-8) is conducted to prepare ZIF-8 derived porous carbon (ZIF-8-C). ZIF-8-C/NiS hexahedral composites with different C/Ni mole ratios (C@NiS-2, C@NiS-4 and C@NiS-6) are synthesized by solvothermal method. Co–P hydrogen storage material is prepared via mechanical alloying. Then, composites of Co–P coated with NiS, ZIF-8-C and C@NiS are obtained by ball-milling. Eventually, C@NiS-4 coated Co–P electrode exhibits higher discharge capacity of 624.8 mAh/g than separate NiS or ZIF-8-C modified Co–P and original Co–P electrodes. The HRD, corrosion resistance and kinetics properties of Co–P are also improved after C@NiS-4 loading. The enhanced kinetics performance and electrochemical activities of Co–P + C@NiS-4 may be due to the synergistic effect between flexible porous carbon ZIF-8-C and active NiS nanosheets, which can further accelerate the hydrogen diffusion during the charging/discharging processes.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0360319922017360; http://dx.doi.org/10.1016/j.ijhydene.2022.04.164; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85129562000&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0360319922017360; https://dx.doi.org/10.1016/j.ijhydene.2022.04.164
Elsevier BV
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