Tailoring the Heterointerfaces of Earth-Abundant Transition-Metal Nanoclusters on Nickel Oxide Nanosheets for Enhanced Overall Water Splitting through Electronic Structure Optimization DOI

Sundaramoorthy Marimuthu,

Govindhan Maduraiveeran

Langmuir, Journal Year: 2024, Volume and Issue: 40(43), P. 22549 - 22560

Published: Oct. 14, 2024

Evolving highly competent and economical electrocatalysts for alkaline water electrolysis is crucial in renewable hydrogen energy technologies. The slow evolution reaction (HER)/oxygen (OER) kinetics under electrolytes, still, has troubled developments high-performance green production systems. Herein, we demonstrate the tailoring of interface earth-abundant transition-metal nanoclusters (MNCs), including iron (Fe), cobalt (Co), nickel (Ni), copper (Cu) on oxide nanosheets (M NCs|NiO NS) through metal-support interaction enriched overall splitting an electrolyte. strong metal-metal allows alteration binding capabilities ions (*H) hydroxyl (*OH) Ni electrodes. Specifically, robust between Fe NiO reveals optimized H* OH* energies, facilitating water-splitting In addition, improved HER/OER catalytic activity attained with NS small overpotentials ∼62.0 ∼380.0 mV HER OER, respectively, a high mass ∼90.0 A g

Language: Английский

Self‐Reconstructed Spinel with Enhanced SO42− Adsorption and Highly Exposed Co3+ From Heterostructure Boosts Activity and Stability at High Current Density for Overall Water Splitting DOI Open Access

Hongye Yang,

F. Y. Chen, Xusheng Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Developing overall water splitting non‐noble metal electrocatalysts achieving long‐term stability with high activity at industrial‐grade current density remains challenging. Herein, a self‐reconstruction strategy of Co 9 S 8 ‐Ni 3 2 /NCF is employed to fabricate Ni x 3‐x O 4 ‐Ov‐ in which partial replaced by the structure. The reconstructed ‐Ov can enhance adsorbing ability leached from initial phase compared spinel, exceeding 1000‐h oxygen evolution reaction (OER) and 600‐h 1000 mA cm −2 excellent activity. In situ Raman X‐ray photoelectron spectroscopy (XPS) results indicate that substitution for atoms enhances adsorption capacity on ‐Ov, facilitating formation high‐density 3+ active sites (400) expedited interfacial electron transfer densities. Density functional theory (DFT) calculations reveal stabilizes surface vacancies optimizes energy intermediates, thereby improving both catalytic performance. findings provide new insights into overcoming activity‐stability trade‐off contribute design

Language: Английский

Citations

8
Highly efficient 2D/2D NiCo-LDH/CuInS2 nanocomposites for electrocatalytic hydrogen and oxygen evolution reactions DOI
Kotesh Kumar Mandari, Younghwan Im, Youngae Lee

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134505 - 134505

Published: Jan. 30, 2025

Language: Английский

Citations

4
Facet-Dependent Evolution of Active Components on Spinel Co3O4 for Electrochemical Ammonia Synthesis DOI
Anquan Zhu,

Heng Liu,

Shuyu Bu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(33), P. 22344 - 22355

Published: Aug. 6, 2024

Spinel cobalt oxides (Co

Citations

9
C‒C Bond Cleavage Driven by Lattice Oxygen during Ethanol Oxidation Process DOI Open Access
Wen Zhang,

Yingxiu Zhao,

Jiayi Li

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Abstract The capacity of C‒C bond cleavage determines the pathway selectivity during ethanol oxidation process. Herein, ultra‐thin monodisperse PdCo nanosheets with an average diameter 33 nm are successfully synthesized and interface Pd‐O‐Co is further constructed due to introduction lattice oxygen. Due their nanosheet structure, unique surface electronic structures driven by oxygen, alloying effect, prepared PdCo/Pd‐O‐Co (PdCo/Pd‐O‐Co NSs) show excellent reaction (EOR) activity stability. mass specific NSs 12.43 A mg −1 22.01 mA cm −2 for EOR, which exceeded nanosheets, Pd commercial black. In situ FTIR spectroscopy theoretical calculation identified that oxygen introduced after square‐wave potential treatment can promote bond. Through combined strain engineering, optimized generation strong p‐d orbital hybridization, led upward shift d‐band center electron delocalization effectively promoting improving anti‐poisoning ability.

Language: Английский

Citations

1
Quenching induced Cu and F co-doping multi-dimensional Co3O4 with modulated electronic structures and rich oxygen vacancy as excellent oxygen evolution reaction electrocatalyst DOI
Xiaowei Li, Jianmin Gou, Lili Bo

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137288 - 137288

Published: March 10, 2025

Language: Английский

Citations

1
Enhancing electrocatalytic performance in the oxygen evolution reaction of zirconium-based amorphous high-entropy oxides via controlled introduction of oxygen vacancies: experimental insights and DFT simulations DOI
Xin Zhang, Rui Xu, Tao Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 694, P. 137635 - 137635

Published: April 17, 2025

Language: Английский

Citations

1
Modifying d–p orbital hybridization of Ni/Fe O species by high-valence ruthenium doping to enhance oxygen evolution performance DOI

Tianmi Tang,

Xue Bai, Xiaoqin Xu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 680, P. 676 - 683

Published: Nov. 7, 2024

Language: Английский

Citations

6
High-Entropy Ruthenium-Based Oxides with Rich Grain Boundaries for Efficient Oxygen Evolution DOI

Youcai Che,

Xiuxiu Zhang,

Shuowen Bo

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(9), P. 4142 - 4148

Published: Aug. 12, 2024

Developing efficient and stable oxygen evolution reaction (OER) electrocatalysts is essential for the production of hydrogen from water electrolysis. Here, we successfully synthesized a high-entropy ruthenium-based oxide (RuMnFeCoNiO-HEO) with rich grain boundaries using fast nonequilibrium molten salt method. The RuMnFeCoNiO-HEO significantly reduced ruthenium dosage could exhibit much higher OER performance low overpotential 190 mV at 10 mA/cm2 long-term durability 100-h continuous operation under 100 in alkaline solution. mass activity turnover frequency RuFeCoNiMn-HEO are enhanced by nearly 1 order magnitude compared to those commercial RuO2. Microstructural characterizations reveal that incorporation four extra 3d transition metals into oxides results formation Ru-based materials boundary structure unsaturated coordination Ru active centers, which optimize both electrocatalytic electrochemical during process.

Language: Английский

Citations

4
Understanding the Different Roles of Adsorbed Oxygen and Lattice Oxygen Species in the Distinct Catalytic Performance of Metal Oxides for o-Xylene Oxidation DOI
Ying Ma,

Lian Wang,

Jinzhu Ma

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(22), P. 16624 - 16638

Published: Oct. 26, 2024

Language: Английский

Citations

4
TiO2/CoOx Heterostructure Decorated MIL-100(Fe) by Atomic Layer Deposition for Enhanced Photocatalytic Oxygen Production DOI
Wenhui Hu, Zhongxin Song, Lingna Sun

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

MIL-100(Fe)/TiO 2 /CoO x was synthesized through a facile microwave-assisted hydrothermal method followed by atomic layer deposition and exhibits exceptional photocatalytic OER performance.

Language: Английский

Citations

0