Effect of Different Trace Iron-Doped ZIF-67 Materials for the Hydrogen Evolution Reaction DOI

Boli Zhao,

Ying Wang,

Junyi Che

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

The development of a catalyst that is efficient, clean, simple, inexpensive, and conducive to wide range industrial applications the key achieving water electrolysis for hydrogen production. In this paper, iron-doped ZIF-67 materials were synthesized using one-step hydrothermal method, with different molar ratios n (Fe3+): (Co2+) = 0.05%, 1%, 2%, 5%, 10%. We found trace amounts iron greatly changed particle size ZIF-67. After high-temperature pyrolysis (400 °C, 600 800 °C), electrochemical results showed content doped temperatures lead evolution reaction (HER) effects. 1% Fe/Co-600 sample overpotential (202 mV) at 10 mA·cm-2 Tafel slope (125.1 mV·dec-1) was significantly lower than other exhibited better HER performance, though still higher commercial Pt/C (5 wt %) 179 mV 67.8 mV·dec-1. Significantly, has strong stability. pyrolysis, had large specific surface area 290.1763 m2·g-1 porous structure consisting micropores mesopores, which improved catalytic effect. It may provide new way modify geometry design prepare low-cost high-activity Co-based catalysts.

Language: Английский

N-doped carbonized lignin for electrocatalysts in seawater batteries DOI

Ji Hwan Hong,

Inwoo Song,

Yoonjong Cho

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159219 - 159219

Published: Jan. 5, 2025

Language: Английский

Citations

1
MOFs meet COFs: Ultra-low Ru loaded oxygen reduction reaction electrocatalyst with biomimetic branch-leaf structure for rechargeable Zn-air batteries DOI
Minghui Wang,

Yuqian Song,

Han Diao

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 109, P. 115229 - 115229

Published: Jan. 5, 2025

Language: Английский

Citations

1
Charge equalization strategy for regulating key intermediate adsorption on bifunctional FeCr-Ni3S2 to Boost seawater splitting DOI
Kai Huang,

Haodong Qi,

Wen Zeng

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132364 - 132364

Published: March 1, 2025

Language: Английский

Citations

1
Design and Modification of Layered Double Hydroxides‐Based Compounds in Electrocatalytic Water Splitting: a Review DOI Open Access
Mingyang Li, Dandan Ma,

Xiangbo Feng

et al.

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

Published: Feb. 21, 2025

Abstract Layered double hydroxides (LDHs) exhibit great potential in electrocatalytic water splitting due to the unique 2D feature and an adjustable structure composed of different metal centers. In addition, LDHs have advantage being inherently inexpensive compared other catalysts good stability splitting. Up now, numerous methods been put forward improve activity splitting, a comprehensive introduction comb fabrication modification strategies is helpful for followers get clear vein carry out efficient manipulation development high promising catalysts. this review, basic principles electrolysis, evaluation indexes are introduced first, then properties commonly utilized introduced. After that, oxygen evolution reaction (OER), hydrogen (HER), overall (OWS) performance LDHs‐based analyze merits shortcomings compared. Based on this, advanced improving give brief prospect materials electrocatalysis.

Language: Английский

Citations

0
Mixed ionic conductor brings extra gain in oxygen-evolving activity of NiFe hydroxide electrocatalyst at practical working temperature DOI Creative Commons
Lu Li, Liqi Bai,

Sixuan She

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125271 - 125271

Published: March 1, 2025

Language: Английский

Citations

0
Cooperative Cobalt-Doped and Carboxylate Anions Modification of NiFe-Layered Double Hydroxides for Improving Oxygen Evolution Reaction DOI
Yitong Liu,

Kaikai Ba,

Peiru Li

et al.

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

Published: April 4, 2025

The disparity of the fast electron-slow proton process significantly hinders catalytic efficiency oxygen evolution reaction (OER) in water splitting, so it is necessary to develop efficient and stable materials mitigate elevated overpotentials. In this study, a one-step hydrothermal approach was utilized synthesize cobalt-doped, carboxylic-acid-modified NiFe-layered double hydroxide (CoNiFe-LDH/NF) catalyst with enhanced intrinsic activity. Introducing Co promotes generation active components, carboxylate anions accelerate transfer, synergistic interaction which endows CoNiFe-LDH/NF superior OER performance. Experimental results show that has an overpotential as low 230 mV at 100 mA cm-2, Tafel slope 38.5 dec-1, excellent stability for 120 h current density 10 cm-2. Furthermore, mechanistic exploration by molecular probe detection pH-dependent experiment showed modified closer lattice oxidation mechanism (LOM). This study provides effective strategy improve performance layered materials.

Language: Английский

Citations

0
Cation leaching and congenetic oxyanion adsorption of amorphous high-entropy LDH for promoting water/seawater oxidation DOI
Han-Ming Zhang, Min Yao, Yong Zou

et al.

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Influence of metal–organic framework structure on the electrocatalytic activity of nickel phosphide nanoparticles synthesized from solvothermal phosphidization DOI
Chao Wang,

Yichuang Xing

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

Published: April 30, 2025

Language: Английский

Citations

0
Sliver nanoparticles decorated ultrathin CoMo LDH nanosheets as a hierarchical self-supported electrodes with high corrosion resistance for efficient seawater electrolysis DOI

Qiang Wu,

Jinsong Cheng,

Qi Sun

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180682 - 180682

Published: April 1, 2025

Language: Английский

Citations

0
Effect of Different Trace Iron-Doped ZIF-67 Materials for the Hydrogen Evolution Reaction DOI

Boli Zhao,

Ying Wang,

Junyi Che

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

The development of a catalyst that is efficient, clean, simple, inexpensive, and conducive to wide range industrial applications the key achieving water electrolysis for hydrogen production. In this paper, iron-doped ZIF-67 materials were synthesized using one-step hydrothermal method, with different molar ratios n (Fe3+): (Co2+) = 0.05%, 1%, 2%, 5%, 10%. We found trace amounts iron greatly changed particle size ZIF-67. After high-temperature pyrolysis (400 °C, 600 800 °C), electrochemical results showed content doped temperatures lead evolution reaction (HER) effects. 1% Fe/Co-600 sample overpotential (202 mV) at 10 mA·cm-2 Tafel slope (125.1 mV·dec-1) was significantly lower than other exhibited better HER performance, though still higher commercial Pt/C (5 wt %) 179 mV 67.8 mV·dec-1. Significantly, has strong stability. pyrolysis, had large specific surface area 290.1763 m2·g-1 porous structure consisting micropores mesopores, which improved catalytic effect. It may provide new way modify geometry design prepare low-cost high-activity Co-based catalysts.

Language: Английский

Citations

0