Nitrogen-doped carbon nanotube-coated cobalt and cobalt nitride heterojunction hierarchical structure for hydrogen evolution at full pH DOI
Yu Wang,

Yaxiao Cui,

Xueyi Zhao

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 177296 - 177296

Published: Oct. 1, 2024

Language: Английский

Tuning d–p Orbital Hybridization of NiMoO4@Mo15Se19/NiSe2 Core‐Shell Nanomaterials via Asymmetric Coordination Interaction Enables the Water Oxidation Process DOI
Qiong Zhang, Wen Zhang, Jiawei Zhu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(20)

Published: April 3, 2024

Abstract The electrocatalytic performance of MoNi‐based nanomaterials undergo selenization has garnered significant interest due to their modified electronic structure, while still posses certain challenges for obtained bimetallic selenides. Here, a novel electrocatalyst NiMoO 4 @Mo 15 Se 19 /NiSe 2 core‐shell is constructed promote the desorption OOH * which can facilitate water oxidation process. nanoarrays show that “cores” are mainly nanorods “shells” selenides nanoflakes, super architectures expand more active sites and accelerate electron transfer. Moreover, hybridization interaction between Ni 3d, Mo 4d, 4p orbitals leads an asymmetric distribution electric clouds, decreases adsorption energy transformation oxygen‐containing species. Electrochemical data displays overpotentials only 195 mV, 220 224 mV oxygen evolution reaction (OER) in alkaline freshwater, simulated seawater, natural seawater. current density decay negligible after 100 h stability at about 1.46 V with three‐electrode system low cost unique this work provide constructive solution designing efficient stable OER catalysts future.

Language: Английский

Citations

21
Coupling Interaction between Precisely Located Pt Single‐Atoms/Clusters and NiCo‐Layered Double Oxide to Boost Hydrogen Evolution Reaction DOI

Yakun Tian,

Yixing Luo, Tong Wu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 25, 2024

Abstract Catalysts based on Pt single atom (SA) metal oxides have shown tremendous potentials for alkaline hydrogen evolution reaction (HER), but they are severely limited by insufficient electron interactions of sites and supports. Herein, a new methodology is developed to precisely locate SAs clusters into NiCo layered double oxide (LDO) nanosheets, achieved using dual‐ion etching process with subsequent phase transformation method. Uniquely, the inserted LDO layers form Pt─Co bonds occupying partial Ni positions, significantly strengthening promoting activity HER. Results from density functional theory calculations indicate that H* species preferentially absorbed onto O top these SAs, which coupled their adjacent accelerate water dissociation in Volmer step. As‐obtained Pt─NiCo exhibits low overpotential 92 mV at 10 mA cm −2 Tafel slope 73 dec −1 , an excellent stability over 105 hours 60 its mass 6 times higher than commercial 20% Pt/C. This study highlights essential functions coupling between SAs/clusters LDOs boost HER energy production.

Language: Английский

Citations

20
Synergistic flower-like N-doped Co/Mo2C catalyst for hydrogen evolution reaction in universal pH and high-performance alkaline water-splitting DOI

Hennayaka Mudiyanselage Charitha Madusanka Jayawardana,

Suci Meng,

Bashir Adegbemiga Yusuf

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 43, P. 102476 - 102476

Published: Jan. 1, 2025

Language: Английский

Citations

2
Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

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

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

2
Low-Pt anodes with gradient molybdenum isomorphism for high performance and anti-CO poisoning PEMFCs DOI
Changqing Jin,

Yucong Liao,

Aojie Zhang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109305 - 109305

Published: Jan. 17, 2024

Language: Английский

Citations

15
Self‐Encapsulated Ni Nanoparticles on Delignified Wood Carbon for Efficient Urea‐Assisted Hydrogen Production DOI
Zhikai Shi, Yao Zhang,

Wei Guo

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract Developing efficient, low‐cost electrocatalysts for industrial‐level hydrogen production remains a significant challenge. Here lattice‐distorted Ni nanoparticles (NPs) encapsulated within nitrogen‐doped carbon shell on delignified wood (Ni‐NC@DWC) are constructed through chitosan‐induced assembly and the pyrolysis process. Experimental theoretical results indicate that lattice distortion due to strong metal‐support interactions, boosts electron transfer reaction intermediate adsorption/desorption, enhancing both urea oxidation (UOR) evolution (HER). Interestingly, active center 3+ ‐O is dynamically cyclically generated during UOR. When utilized as self‐standing electrode in an alkaline electrolyte, Ni‐NC@DWC exhibits low potentials of 24 mV 1.244 V at 100 mA cm −2 HER UOR, respectively. Moreover, achieves ultrasmall cell voltage 1.13 urea‐assisted water splitting can operate stably over 1000 h. Furthermore, when it self‐assembled anion exchange membrane (AEM) electrolyzer, requires only 1.62 2000 industrial operates 150 h without degradation, confirming highly attractive economical, sustainable, scalable production.

Language: Английский

Citations

11
The role of extremely low-dimensional carbon materials in the design of sustainable catalysts for water splitting DOI
Mumtaz Ali,

Xiangyu Cao,

Hassan Anwer

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160981 - 160981

Published: Feb. 1, 2025

Language: Английский

Citations

1
Large-area, flexible bimetallic phosphorus-based electrodes for prolong-stable industrial grade overall seawater splitting DOI

Xunwei Ma,

Rikai Liang,

Yiming Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150624 - 150624

Published: March 24, 2024

Language: Английский

Citations

8
NiCo alloy synergistic Pt nanocatalysts for enhancing the durability of the methanol oxidation reaction DOI
Feng Luo, Tingyi Wen,

Jiarui Wu

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(14), P. 6180 - 6187

Published: Jan. 1, 2024

By electrodepositing Pt/NiCo nanocatalysts on l -shaped glassy carbon substrates, high methanol oxidation reaction (MOR) durability was achieved.

Language: Английский

Citations

5
Deep eutectic Solvents-Assisted synthesis of NiFe-LDHs/Mo2Ti2C3: A bifunctional electrocatalyst for overall electrochemical water splitting in alkaline media DOI
Thangavelu Kokulnathan, Brahmari Honnappa, Tzyy‐Jiann Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 1036 - 1048

Published: Sept. 6, 2024

Language: Английский

Citations

5