Mo6X6 nanowires enhance the catalytic and cycling performance of non-aqueous Li-O2 batteries DOI
Jiayi Guo, Yongsheng Yao,

Yaozhong Liu

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 161920 - 161920

Published: Nov. 1, 2024

Language: Английский

Core–Shell Co‐CoxP Nanoparticle‐Embedded N‐Doped Carbon Nanowhiskers Hollow Sphere for Efficient Oxygen Evolution Electrocatalysis DOI
Wei Zhu, Wenhui Hu, Ying Wei

et al.

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

Published: July 26, 2024

Abstract The development of efficient oxygen evolution reaction (OER) electrocatalysts is critical to overcome the efficiency bottleneck in hydrogen generation via water electrolysis. Hollow nanostructured materials have emerged as a hot topic for electrocatalysis research because their advantages, including abundant active sites, large contact area between catalyst and electrolyte, short transmission path. As highly stable OER electrocatalysts, cobalt‐based attracted more attention. In this work, cobalt metal/cobalt phosphides/nitrogen‐doped carbon composites (Co‐Co x P/NC) with hierarchical hollow structure are designed by using ZIF‐67 microspheres precursors. By coating ZIF‐8 on surface further carbonizing, nanowhiskers successfully formed spheres under catalytic effect Co nanoparticles at high temperature. subsequent phosphating process, solid nanocrystalline particles transformed into core–shell CoP 2 P account Kirkendall effect. Through optimization microstructure material synergistic transition metal, metal phosphide, nitrogen doping, overpotential optimal only 287 mV 10 mA cm −2 current density 1 m KOH.

Language: Английский

Citations

10
Defect engineering and Ni promoter synergistically accelerating electron transfer to Ru0 sites in UiO-66(Ce) for dicyclopentadiene hydrogenation under mild condition DOI
Rushuo Li, Tao Ban,

Danfeng Zhao

et al.

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 7, 2024

Language: Английский

Citations

9
Single‐Atomic Co‐N‐C Sites Anchored on Helical Carbonaceous Nanotubes for the Oxygen Reduction Reaction DOI Open Access

Jieling Zhang,

Yonghong Mou,

Weiran Suo

et al.

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

Published: Nov. 7, 2024

Abstract Metal‐coordinated N‐doped carbon (M‐N‐C) materials with highly curved structures have become a promising class of electrocatalysts for the oxygen reduction reaction (ORR). However, stability these remains problem due to traditional post‐metal loading strategy. Herein, single‐atomic Co‐N‐C active sites anchored on helical carbonaceous nanotubes (HCNTs) are prepared (Co‐N‐C@HCNT) by pyrolyzing Co porphyrins and polypyrroles (PPys) mixtures at high‐temperature one‐step method. Aberration‐corrected high‐angle annular dark‐field scanning transmission electron microscopy (HAADF‐STEM) X‐ray absorption fine structure (XAFS) measurements confirm Co‐N 4 coordination Co‐N‐C@HCNT. The optimized Co‐N‐C@HCNT exhibits excellent catalytic ORR activity half‐wave potential ( E 1/2 ) 0.86 V versus reversible hydrogen electrode (vs RHE) compared Co‐N‐C@CNT without = 0.81 vs measured in 0.1 m KOH. also displays slight current decrease (4%) after running 10 h featuring tightly HCNTs electrostatic interactions between metal PPys. Theoretical calculations indicate that can increase charge d‐band center site, which enhances electrocatalytic activity. This work provides simple but effective strategy construct M‐N‐C materials.

Language: Английский

Citations

9
Exposure engineering of active sites of Co-N-C for efficient oxygen reduction reaction DOI
Ting Chen, Chao Hao, Zhenyu Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159449 - 159449

Published: Jan. 9, 2025

Language: Английский

Citations

1
Modulating the electronic structure of macroporous SrTiO3 through cobalt doping for enhance photocatalytic hydrogen evolution DOI
Jie Yang, Hongwei Chen, Penghui Bai

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 80, P. 104 - 114

Published: July 14, 2024

Language: Английский

Citations

5
Lowering Charge Potential of Li-O2 Battery to 3.25 V through a Facile Lithiation of Pd-CN Cathode Catalyst DOI
Junkai Wang, Daniel Q. Tan, Zhongbo Hu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 358, P. 124435 - 124435

Published: July 26, 2024

Language: Английский

Citations

4
Electronic and porous structure engineering of coordination polymer-derived carbon for enhanced bifunctional oxygen electrocatalysts DOI
Zihan Meng,

Fangfang Wan,

Jiawei Wu

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 102, P. 1411 - 1420

Published: Jan. 17, 2025

Language: Английский

Citations

0
Theoretical insights into performance descriptors and their impact on activity optimization strategies for cobalt-based electrocatalysts DOI
Xinxin Zhang, Lei Wang, Ying Xie

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 533, P. 216560 - 216560

Published: Feb. 27, 2025

Language: Английский

Citations

0
Defect and doping synergistic optimization for efficient and durable alkaline seawater hydrogen production DOI
Wenjuan Xu, Sami Ur Rahman, Yingyu Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137354 - 137354

Published: March 1, 2025

Language: Английский

Citations

0
Co-Fe3C nanoparticles encapsulated in N-doped carbon matrix carbon as bifunctional electrocatalyst for oxygen reaction and reversible zinc-air batteries DOI
Chen Xu,

Jinsong Hu,

Cuiping Wang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179961 - 179961

Published: March 1, 2025

Language: Английский

Citations

0