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在碳布上类银耳状合成ZIF-67Co(OH)F@CoO作为超级电容器的电极材料

A tremella-like synthesis of ZIF-67Co(OH)F@CoO on carbon cloth as an electrode material for supercapacitors.

作者信息

Ahmad Shakeel, Tariq Muhammad, Rehman Zia Ur, Yao Shanshan, Zhu Bing, Ni Henmei, Samiuddin Muhammad, Khan Khalid Ali, Zaki Magdi E A

机构信息

School of Chemistry and Chemical Engineering, Southeast University Nanjing 211189 PR China

Institute for Advanced Materials, College of Materials Science and Engineering, Jiangsu University Zhenjiang 212013 P. R. China.

出版信息

RSC Adv. 2024 Sep 4;14(38):27831-27842. doi: 10.1039/d4ra04250f. eCollection 2024 Aug 29.

DOI:10.1039/d4ra04250f
PMID:39234527
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11372565/
Abstract

In this study, a simple technique followed by hydrothermal method is used to synthesize a novel tremella-like structure of ZIF-67Co(OH)F@CoO/CC metal-organic framework (MOF) derived from zeolite imidazole. The synthesis of metal-organic frameworks (MOFs) increases their conductivity and produces more active sites for ion insertion. Their unique, scalable design not only provides more space to accommodate volume change but also facilitates electrolyte penetration into the electrode resulting in more active materials being utilized and ion-electron transfer occurring faster during the cycle. As a result, the binder-free ZIF-67Co(OH)F@CoO/CC supercapacitor electrode exhibits typical pseudo-capacitance behaviour, with a specific capacitance of 442 F g and excellent long-term cycling stability of 90% after 5000 cycles at 10 A g.

摘要

在本研究中，采用一种简单的技术并结合水热法，合成了一种新型的类似银耳结构的ZIF-67Co(OH)F@CoO/CC金属有机框架（MOF），其源自沸石咪唑。金属有机框架（MOF）的合成提高了它们的导电性，并为离子插入产生了更多的活性位点。它们独特的、可扩展的设计不仅提供了更多空间来容纳体积变化，还促进了电解质渗透到电极中，从而使更多的活性材料得到利用，并且在循环过程中离子-电子转移更快地发生。结果，无粘结剂的ZIF-67Co(OH)F@CoO/CC超级电容器电极表现出典型的赝电容行为，比电容为442 F g，在10 A g下经过5000次循环后具有90%的优异长期循环稳定性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/41d3cca58660/d4ra04250f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/f8480fbcfaa2/d4ra04250f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/81cf7514c055/d4ra04250f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/be2c3b8c5f38/d4ra04250f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/efec79a7d744/d4ra04250f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/321a06165128/d4ra04250f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/2848b545cb1c/d4ra04250f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/a5424ccaa8b6/d4ra04250f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/41d3cca58660/d4ra04250f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/f8480fbcfaa2/d4ra04250f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/81cf7514c055/d4ra04250f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/be2c3b8c5f38/d4ra04250f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/efec79a7d744/d4ra04250f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/321a06165128/d4ra04250f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/2848b545cb1c/d4ra04250f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/a5424ccaa8b6/d4ra04250f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2132/11372565/41d3cca58660/d4ra04250f-f8.jpg

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