Rational Designing of NiO Nanoparticles Anchored with PEG-WO3 for Enhanced Water Oxidation Performance DOI Open Access
Mrunal Bhosale, Pritam J. Morankar, Rutuja U. Amate

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1281 - 1281

Published: May 7, 2025

The electrochemical water splitting method is widely regarded as an efficient and sustainable approach for producing high-purity hydrogen in environmentally friendly manner. Cost-effective electrocatalysts are essential augmenting the electrocatalytic oxidation reaction. Herein, PEG-WO3-NiO electrocatalyst acknowledged attaining oxygen evolution reaction (OER) performances alkaline conditions. NiO nanoparticles anchored themselves to PEG-WO3‘s surface produced effective interfacial contact between materials. Among various compositions, optimized ratio of exhibits a low overpotential 349.7 mV at current density 10 mA cm−2 Tafel slope 71.22 dec−1 OER 1 M KOH. Additionally, demonstrates excellent stability, maintaining its performance even after 5000 cyclic voltammetry (CV) cycles chronopotentiometry analysis. Given durability high electrochemically active area, contributes advancement cost-effective scalable solutions applications.

Language: Английский

Reaction Mechanism of Rapid CO Electroreduction to Propylene and Cyclopropane (C3+) over Triple Atom Catalysts DOI
Mohsen Tamtaji, Soonho Kwon, Charles B. Musgrave

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(38), P. 50567 - 50575

Published: June 26, 2024

The carbon monoxide reduction reaction (CORR) toward C2+ and C3+ products such as propylene cyclopropane can not only reduce anthropogenic emissions of CO CO2 but also produce value-added organic chemicals for polymer pharmaceutical industries. Here, we introduce the concept triple atom catalysts (TACs) that have three intrinsically strained active metal centers reducing to products. We applied grand canonical potential kinetics (GCP-K) screen 12 transition metals (M) supported by nitrogen-doped graphene denoted M3N7, where M stands Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Ir, Pt, Au. sought with favorable binding, hydrogen C–C dimerization energetics, identifying Fe3N7 Ir3N7 best candidates. then studied entire mechanism from C3H6 C2H4 a function via, respectively, 12-electron 8-electron transfer pathways on Ir3N7. Density functional theory (DFT) predicts an overpotential 0.17 VRHE 0.42 at 298.15 K pH = 7. Also, DFT 0.15 ethylene. This work provides fundamental insights into design advanced synthesis room temperature.

Language: Английский

Citations

4
Alcohol electrooxidation on three-component NiO/La2O3/MWCNTs catalyst for DAFC application DOI
Sayed Ali Ahmadi, Hadi Ebrahimifar, Mohammad Bagher Askari

et al.

Electrochemistry Communications, Journal Year: 2025, Volume and Issue: 176, P. 107936 - 107936

Published: April 17, 2025

Language: Английский

Citations

0
Atomically dispersed trimetallic oxygen electrocatalysts for advancing rechargeable zinc-air battery DOI Open Access

Zheng Zhixiong,

Lele Wang, Chanez Maouche

et al.

Chemical Synthesis, Journal Year: 2025, Volume and Issue: 5(3)

Published: April 18, 2025

Developing efficient non-precious metal catalysts for oxygen electrocatalysis is crucial advancing renewable energy storage systems such as rechargeable Zn-air batteries. Nitrogen-doped carbon (M-N-C) materials with atomically dispersed sites, particularly Fe-N-C, exhibit remarkable activity the reduction reaction (ORR); however, their performance in evolution (OER) remains unsatisfactory. In this work, we present fabrication of Fe, Co, and Ni trimetallic single-atom catalysts, which outstanding bifunctional catalytic performance. Using ZIF-8 phytic acid chelating agents, achieved uniform dispersion atoms within a porous matrix, preventing agglomeration enhancing The Fe30Co30Ni30-phosphorus nitrogen doped (PNC) catalyst, after optimization, half-wave potential 0.85 V ORR an OER overpotential 310 mV at 10 mA·cm-2, outperforming many state-of-the-art catalysts. When applied battery, it peak power density 221 mW·cm-2, specific capacity 791.3 mAh·gZn-1, durability over 330 h. This study offers approach developing high-performance applications.

Language: Английский

Citations

0
Challenges and Breakthroughs in Single-Atom Catalysts for Electrocatalytic Nitrate Reduction to Ammonia DOI
Yang Wang, Jin Li, Xiujing Xing

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Language: Английский

Citations

0
Rational Designing of NiO Nanoparticles Anchored with PEG-WO3 for Enhanced Water Oxidation Performance DOI Open Access
Mrunal Bhosale, Pritam J. Morankar, Rutuja U. Amate

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1281 - 1281

Published: May 7, 2025

The electrochemical water splitting method is widely regarded as an efficient and sustainable approach for producing high-purity hydrogen in environmentally friendly manner. Cost-effective electrocatalysts are essential augmenting the electrocatalytic oxidation reaction. Herein, PEG-WO3-NiO electrocatalyst acknowledged attaining oxygen evolution reaction (OER) performances alkaline conditions. NiO nanoparticles anchored themselves to PEG-WO3‘s surface produced effective interfacial contact between materials. Among various compositions, optimized ratio of exhibits a low overpotential 349.7 mV at current density 10 mA cm−2 Tafel slope 71.22 dec−1 OER 1 M KOH. Additionally, demonstrates excellent stability, maintaining its performance even after 5000 cyclic voltammetry (CV) cycles chronopotentiometry analysis. Given durability high electrochemically active area, contributes advancement cost-effective scalable solutions applications.

Language: Английский

Citations

0