C60 Fullerene‐Induced Reduction of Metal Ions: Synthesis of C60‐Metal Cluster Heterostructures with High Electrocatalytic Hydrogen‐Evolution Performance DOI
Wenhao Yang, Qi Huang, Yingying Yan

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(2)

Published: Sept. 6, 2024

Abstract Metal clusters, due to their small dimensions, contain a high proportion of surface atoms, thus possessing significantly improved catalytic activity compared with bulk counterparts and nanoparticles. Defective modified carbon supports are effective in stabilizing metal however, the synthesis isolated clusters still requires multiple steps harsh conditions. Herein, we develop C 60 fullerene‐driven spontaneous deposition process, where serves as both reductant an anchor, achieve uniform (Rh, Ir, Pt, Pd, Au Ru) without need for any defects or functional groups on . Density theory calculations reveal that possesses strong adsorption sites, which favors stable atoms. In addition, owing electron‐withdrawing properties , electronic structures effectively regulated, not only optimizing behavior reaction intermediates but also accelerating kinetics hydrogen evolution reaction. The synthesized Ru/C ‐300 exhibits remarkable performance alkaline condition. This study demonstrates facile efficient method synthesizing fullerene‐supported cluster catalysts pretreatment additional reducing agent.

Language: Английский

Modulation of Hydrogen Desorption Capability of Ruthenium Nanoparticles via Electronic Metal‐Support Interactions for Enhanced Hydrogen Production in Alkaline Seawater DOI Open Access
Junwei Sun, Zhichao Wang, Yue Wang

et al.

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

Published: March 6, 2025

The development of efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) is essential realization effective production via seawater electrolysis. Herein, study has developed a simple method that combines electrospinning with subsequent thermal shock technology to effectively disperse ruthenium nanoparticles onto highly conductive titanium carbide nanofibers (Ru@TiC). electronic metal-support interactions (EMSI) resulted from charge redistribution at interface between Ru TiC support can optimize desorption kinetics sites induce spillover phenomenon, thereby improving evolution. As result, Ru@TiC catalyst exhibits outstanding HER activity, requiring low overpotentials only 65 mV in alkaline current density 100 mA cm-2. Meanwhile, demonstrates excellent stability, maintaining consistent operation 500 cm-2 least 250 hours. Additionally, an anion exchange membrane electrolyzer incorporating operated continuously over hours 200 seawater. This highlights significant potential robust supports fabrication enduring enhance complex environments.

Language: Английский

Citations

1
Elaborated Built-In Electric Field in Mn/C60 Heterojunction Promotes Electrocatalytic Nitrogen Reduction to Ammonia DOI
Xue Hao,

Kaiheng Zhao,

Denglei Gao

et al.

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

Published: Jan. 1, 2025

The built-in electric field in the Mn/C 60 heterostructure optimized adsorption energy of key intermediate *NH–*NH 2 and reduced free barrier for third hydrogenation step, which enhanced intrinsic activity NRR.

Language: Английский

Citations

0
Seeding Janus Zn–Fe Diatomic Pairs on a Hollow Nanobox for Potent Catalytic Therapy DOI
Jin Ye,

Yunlong Li,

Jiating Xu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Dual atomic nanozymes (DAzymes) are promising for applications in the field of tumor catalytic therapy. Here, integrating with ultrasmall Fe5C2 nanoclusters, asymmetric coordination featuring Janus Zn-Fe dual-atom sites an O2N2-Fe-Zn-N4 moiety embedded a carbon vacancy-engineered hollow nanobox (Janus ZnFe DAs-Fe5C2) was elaborately developed. Theoretical calculation revealed that synergistic effects Zn centers acting as both adsorption and active sites, oxygen-heteroatom doping, vacancy, nanoclusters jointly downshifted d-band center Fe 3d orbitals, optimizing desorption behaviors intermediates *OH, thereby significantly promoting activity. Upon 1064 nm laser irradiation, DAs-Fe5C2 superior photothermal conversion efficiency (η = 62.5%) showed thermal-augmented Fascinatingly, multienzymatic properties can suppress expression glutathione peroxidase 4 accelerate accumulation lipid peroxides, through which ferroptosis is triggered. Overall, tannin-involved will inspire more inventions biodegradable DAzymes therapy application.

Language: Английский

Citations

0
Tuning Lewis basicity of surface OH species on nickel (hydro)oxides towards efficient hydrogen evolution DOI
Chunyu Zhang, Guang Yang, Xueqing Gao

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125478 - 125478

Published: May 1, 2025

Language: Английский

Citations

0
Direct Observation of Hybridization Between Co 3d and S 2p Electronic Orbits: Moderating Sulfur Covalency to Pre‐Activate Sulfur‐Redox in Lithium–Sulfur Batteries DOI Creative Commons
Di Wang,

Yaozu Jia,

Qi Jin

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Abstract Lithium–sulfur batteries (LSBs) offer high energy density and environmental benefits hampered by the shuttle effect related to sluggish redox reactions of long‐chain lithium polysulfides (LiPSs). However, fashion modification d ‐band center in separators is still ineffective, wherein mechanism understanding always relies on theoretical calculations. This study visibly probed evolution Co 3 during charge discharge using advanced inverse photoemission spectroscopy/ultraviolet spectroscopy (IPES/UPS), which offers reliable evidence are consistent well with This, coupled situ Raman X‐ray diffraction (XRD) electrochemical data, co‐evidences a novel pre‐activating S LSBs: LiPSs desert/insert C‐N matrixes within series Co@NCNT‐based separators. The insight pre‐activation discovered that downshifts hybridized 2 p orbitals LiPSs, giving rise more pronounced covalency thus accelerating conversion S₈. Benefiting from these advantages, optimized LSB possesses minimal decay rate 0.0058% after 200 cycles at 10 C. provides new insights into mechanisms supports conventional models center's impact performance.

Language: Английский

Citations

3
C60 Fullerene‐Induced Reduction of Metal Ions: Synthesis of C60‐Metal Cluster Heterostructures with High Electrocatalytic Hydrogen‐Evolution Performance DOI
Wenhao Yang, Qi Huang, Yingying Yan

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 6, 2024

Abstract Metal clusters, due to their small dimensions, contain a high proportion of surface atoms, thus possessing significantly improved catalytic activity compared with bulk counterparts and nanoparticles. Defective modified carbon supports are effective in stabilizing metal however, the synthesis isolated clusters still requires multiple steps harsh conditions. Herein, we develop C 60 fullerene‐driven spontaneous deposition process, where serves as both reductant an anchor, achieve uniform (Rh, Ir, Pt, Pd, Au Ru) without need for any defects or functional groups on . Density theory calculations reveal that possesses strong adsorption sites, which favors stable atoms. In addition, owing electron‐withdrawing properties , electronic structures effectively regulated, not only optimizing behavior reaction intermediates but also accelerating kinetics hydrogen evolution reaction. The synthesized Ru/C ‐300 exhibits remarkable performance alkaline condition. This study demonstrates facile efficient method synthesizing fullerene‐supported cluster catalysts pretreatment additional reducing agent.

Language: Английский

Citations

2
C60 Fullerene‐Induced Reduction of Metal Ions: Synthesis of C60‐Metal Cluster Heterostructures with High Electrocatalytic Hydrogen‐Evolution Performance DOI
Wenhao Yang, Qi Huang, Yingying Yan

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(2)

Published: Sept. 6, 2024

Abstract Metal clusters, due to their small dimensions, contain a high proportion of surface atoms, thus possessing significantly improved catalytic activity compared with bulk counterparts and nanoparticles. Defective modified carbon supports are effective in stabilizing metal however, the synthesis isolated clusters still requires multiple steps harsh conditions. Herein, we develop C 60 fullerene‐driven spontaneous deposition process, where serves as both reductant an anchor, achieve uniform (Rh, Ir, Pt, Pd, Au Ru) without need for any defects or functional groups on . Density theory calculations reveal that possesses strong adsorption sites, which favors stable atoms. In addition, owing electron‐withdrawing properties , electronic structures effectively regulated, not only optimizing behavior reaction intermediates but also accelerating kinetics hydrogen evolution reaction. The synthesized Ru/C ‐300 exhibits remarkable performance alkaline condition. This study demonstrates facile efficient method synthesizing fullerene‐supported cluster catalysts pretreatment additional reducing agent.

Language: Английский

Citations

0