Revisiting Water Oxidation Reaction with Micro Bubble Lithography (MBL) Printed ZIF‐67 MOF Electrocatalysts DOI

Khokan Manna,

Anand Dev Ranjan,

Himanshi Singh

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Abstract Microbubble‐based micro‐lithographic techniques have developed rapidly over the last ten years and are capable of reproducibly patterning a wide variety soft materials colloids, including polymers, metals, proteins. Zeolitic imidazolate framework (ZIF) attracted great deal research application interest in field science because their chemical thermal stabilities. Furthermore, ZIF‐67 has demonstrated significant potential for applications gas adsorption, molecule separation, electrochemistry, catalysis, which when converted into “lab‐on‐a‐chip” platforms might produce remarkable diverse application‐oriented outcomes. This is due to highly adjustable nanostructures. Using Co(OAc) 2 .4H O Co(NO 3 ) .6H as metal ion sources 2‐methylimidazole ligand, To design (composed Co 2+ ions ligands) attempted. Inspired by previous results, Micro‐Bubble Lithography (MBL) approach used successfully demonstrate an instantaneous situ green synthesis micro‐patterning MOFs this work. With reasonable stability over‐potential 440 mV, these micro‐patterns microelectrodes electrocatalytic oxygen evolution reaction (OER) media having different pH.

Language: Английский

Preparation and Performance of Nickel-Doped LaSrCoO3-SrCO3 Composite Materials for Alkaline Oxygen Evolution in Water Splitting DOI Creative Commons

Bangfeng Zong,

Xiao Jun Pan, Lifang Zhang

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(3), P. 210 - 210

Published: Jan. 28, 2025

Perovskites exhibit catalytic properties on the oxygen evolution reaction (OER) in water electrolysis. Elemental doping by specific preparation methods is a good strategy to obtain highly catalytical active perovskite catalysts. In this work, La0.5Sr0.5Co1−xNixO3−δ materials doped with different ratios of nickel were successfully synthesized sol-gel method. The electrochemical measurement results show that for OER 1 M KOH solution, La0.5Sr0.5Co0.8Ni0.2O3−δ prepared method requires only low overpotential 213 mV reach 10 mA cm−2, which significantly lower than hydrothermal increasing about 45.24% (389 at cm−2). addition, can be kept stable an alkaline medium tested 30 h without degradation. This indicates has better performance. X-ray diffraction (XRD) SrCO3 main phase formed, disadvantage performance improvement may affected carbonate phase. scanning electron microscopy (SEM) layer structured more surface pores pore diameter 0.362 μm spherical granular photoelectronic spectroscopy (XPS) reveal crystal lattice lengthened, and electronic configuration Co also changed process. improved electrocatalytic attributed structure formed providing sites during process mobility Ni using provides valuable insights optimizing properties.

Language: Английский

Citations

0
Insight into the structural reconstruction of alkaline water oxidation electrocatalysts DOI
Kaixi Wang, Yifei Xu,

Vahid Daneshvari-Esfahlan

et al.

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review explores precatalysts’ structural reconstruction during alkaline OER, summarizes methods probing evolution and influencing factors, guides dynamic regulation, discusses impacts on performance.

Language: Английский

Citations

0
Cation (Cr3+, Zn2+, Cu2+ and Mn3+) doping to construct high entropy spinel oxide nanocrystals for modulation of oxygen evolution reaction DOI

Bingxuan Zhai,

Jian Gong,

Leping Liu

et al.

Fuel, Journal Year: 2025, Volume and Issue: 393, P. 134992 - 134992

Published: March 9, 2025

Language: Английский

Citations

0
Revisiting Water Oxidation Reaction with Micro Bubble Lithography (MBL) Printed ZIF‐67 MOF Electrocatalysts DOI

Khokan Manna,

Anand Dev Ranjan,

Himanshi Singh

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Abstract Microbubble‐based micro‐lithographic techniques have developed rapidly over the last ten years and are capable of reproducibly patterning a wide variety soft materials colloids, including polymers, metals, proteins. Zeolitic imidazolate framework (ZIF) attracted great deal research application interest in field science because their chemical thermal stabilities. Furthermore, ZIF‐67 has demonstrated significant potential for applications gas adsorption, molecule separation, electrochemistry, catalysis, which when converted into “lab‐on‐a‐chip” platforms might produce remarkable diverse application‐oriented outcomes. This is due to highly adjustable nanostructures. Using Co(OAc) 2 .4H O Co(NO 3 ) .6H as metal ion sources 2‐methylimidazole ligand, To design (composed Co 2+ ions ligands) attempted. Inspired by previous results, Micro‐Bubble Lithography (MBL) approach used successfully demonstrate an instantaneous situ green synthesis micro‐patterning MOFs this work. With reasonable stability over‐potential 440 mV, these micro‐patterns microelectrodes electrocatalytic oxygen evolution reaction (OER) media having different pH.

Language: Английский

Citations

0