Xin, Ruijing Kim, Minjun Cheng, Ping Ashok, Aditya Chowdhury, Silvia Park, Teahoon Alowasheeir, Azhar Hossain, Md. Shahriar Tang, Jing Yi, Jin Woo Yamauchi, Yusuke Kaneti, Yusuf Valentino Na, Jongbeom 2024-01-19T09:32:23Z 2024-01-19T09:32:23Z 2023-01-26 2023-06 2050-7488 https://pubs.kist.re.kr/handle/201004/113726 In this work, hierarchically porous bimetallic zeolitic imidazolate framework (ZIF) particles (etched Zn33Co67-ZIF) exhibiting both micropores and mesopores have been designed and prepared through an ethylene glycol-assisted aqueous etching method. The etching process effectively increases the pore size, surface area, and pore volume of the bimetallic ZIF particles. After the thermal treatment, the etched Zn33Co67-ZIF particles are transformed into cobalt and nitrogen co-doped hierarchically porous carbon (i.e., etched Zn33Co67-C). Etched Zn33Co67-C has an increased mesoporosity, leading to an approximately 45% increase in its specific capacitance compared to the unetched one. In addition, etched Zn33Co67-C displays a higher capacitance retention (67%) than unetched Zn33Co67-C (41%) over a range of scan rates from 1 to 100 mV s(-1). The presented ethylene glycol-assisted aqueous etching process provides a facile template-free strategy to enlarge the porosity of MOFs and their corresponding porous carbons for improving their energy storage performance. English Royal Society of Chemistry Enlarging the porosity of metal-organic framework-derived carbons for supercapacitor applications by a template-free ethylene glycol etching method Article 10.1039/d2ta06307g 1 Journal of Materials Chemistry A, v.11, no.24, pp.12759 - 12769 Journal of Materials Chemistry A 11 24 12759 12769 N scie scopus 000907636900001 2-s2.0-85146153118 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article POROUS CARBON WATER CO2 ELECTRODES CHEMISTRY