Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source

Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source

In this study, a V<sub>2</sub>O<sub>3</sub>/carbon (V<sub>2</sub>O<sub>3</sub>/C) composite was synthesized using zeolitic imidazolate framework 8 (ZIF-8) as both a sacrificial template and in situ carbon source. The composite was prepared by mixing ZI...

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Main Author: Byoungnam Park
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Crystals
Subjects:
MOF
zin-ion battery
V<sub>2</sub>O<sub>3</sub>
EPD
Online Access:https://www.mdpi.com/2073-4352/15/5/436
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author Byoungnam Park
author_facet Byoungnam Park
author_sort Byoungnam Park
collection DOAJ
description In this study, a V<sub>2</sub>O<sub>3</sub>/carbon (V<sub>2</sub>O<sub>3</sub>/C) composite was synthesized using zeolitic imidazolate framework 8 (ZIF-8) as both a sacrificial template and in situ carbon source. The composite was prepared by mixing ZIF-8 with NH<sub>4</sub>VO<sub>3</sub>, followed by annealing at 800 °C, resulting in nanoscale V<sub>2</sub>O<sub>3</sub> embedded in a nitrogen-doped porous carbon matrix. Fabricated into a thin-film cathode via alternating current electrophoretic deposition (AC-EPD), the composite exhibited mixed capacitive–diffusion-controlled charge storage behavior with favorable Zn<sup>2+</sup> transport kinetics, as confirmed by a <i>b</i>-value analysis (<i>b</i> = 0.72) and diffusion coefficient measurements (<i>D<sub>Zn</sub></i> = 6.2 × 10<sup>−11</sup> cm<sup>2</sup>/s). Notably, the cathode displayed photoresponsive redox behavior under 450 nm illumination, enhancing the Zn-ion kinetics. These findings demonstrate the potential of MOF-derived V<sub>2</sub>O<sub>3</sub>/C composites for high-performance, photo-enhanced zinc-ion energy storage applications.
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issn 2073-4352
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publishDate 2025-05-01
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spelling doaj-art-8f87b71ac5e14b40aa81987c49d0a0672025-08-20T01:56:31ZengMDPI AGCrystals2073-43522025-05-0115543610.3390/cryst15050436Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon SourceByoungnam Park0Department of Materials Science, Engineering Hongik University 72-1, Sangsu-dong, Mapo-gu, Seoul 04066, Republic of KoreaIn this study, a V<sub>2</sub>O<sub>3</sub>/carbon (V<sub>2</sub>O<sub>3</sub>/C) composite was synthesized using zeolitic imidazolate framework 8 (ZIF-8) as both a sacrificial template and in situ carbon source. The composite was prepared by mixing ZIF-8 with NH<sub>4</sub>VO<sub>3</sub>, followed by annealing at 800 °C, resulting in nanoscale V<sub>2</sub>O<sub>3</sub> embedded in a nitrogen-doped porous carbon matrix. Fabricated into a thin-film cathode via alternating current electrophoretic deposition (AC-EPD), the composite exhibited mixed capacitive–diffusion-controlled charge storage behavior with favorable Zn<sup>2+</sup> transport kinetics, as confirmed by a <i>b</i>-value analysis (<i>b</i> = 0.72) and diffusion coefficient measurements (<i>D<sub>Zn</sub></i> = 6.2 × 10<sup>−11</sup> cm<sup>2</sup>/s). Notably, the cathode displayed photoresponsive redox behavior under 450 nm illumination, enhancing the Zn-ion kinetics. These findings demonstrate the potential of MOF-derived V<sub>2</sub>O<sub>3</sub>/C composites for high-performance, photo-enhanced zinc-ion energy storage applications.https://www.mdpi.com/2073-4352/15/5/436MOFzin-ion batteryV<sub>2</sub>O<sub>3</sub>EPD
spellingShingle Byoungnam Park
Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
Crystals
MOF
zin-ion battery
V<sub>2</sub>O<sub>3</sub>
EPD
title Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
title_full Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
title_fullStr Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
title_full_unstemmed Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
title_short Electrochemical and Photoresponsive Behavior of MOF-Derived V<sub>2</sub>O<sub>3</sub>/C Cathodes for Zinc-Ion Batteries: ZIF-8 as a Nanoscale Reactor and Carbon Source
title_sort electrochemical and photoresponsive behavior of mof derived v sub 2 sub o sub 3 sub c cathodes for zinc ion batteries zif 8 as a nanoscale reactor and carbon source
topic MOF
zin-ion battery
V<sub>2</sub>O<sub>3</sub>
EPD
url https://www.mdpi.com/2073-4352/15/5/436
work_keys_str_mv AT byoungnampark electrochemicalandphotoresponsivebehaviorofmofderivedvsub2subosub3subccathodesforzincionbatterieszif8asananoscalereactorandcarbonsource

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