Graphite Carbon Nitride Accelerating Interfacial Electron Transfer of Defect-Rich TiO2 for N2 Photofixation DOI Open Access
Junwu Zhu, Kai Li, Nian-Hua Liu

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 15(1), P. 19 - 19

Published: Dec. 29, 2024

The photocatalytic N2 fixation reaction still faces high activation energy barriers and inefficient electron transfer efficiency, limiting the overall ammonia yield of semiconductors. This communication reports on construction an organic/inorganic g-C3N4/oxygen vacancy-enriched TiO2 (g-C3N4/TiO2-OV) composite system via annealing treatment in H2/Ar mixed atmosphere for enhanced activity. After illumination 4 h, g-C3N4/TiO2-OV with 1 wt% g-C3N4 loading demonstrates optimal 31.6 μmol L−1. study existence oxygen vacancies surface through EPR while also investigating carrier separation transport efficiency material using photoelectric characterization. experimental results indicate that introduction OVs into serves as Lewis acid sites, facilitating adsorption. Moreover, lower onset potential higher current density composites heterojunction significantly decreases interfacial charge recombination barrier, effectively improving towards photo-reduction. work emphasizes importance rational tailoring TiO2-based photocatalysts field fixation.

Language: Английский

Design of coral-like P5ICA/Ov-MoO3 composites with oxygen vacancy for electrochromic supercapacitors DOI

Yanmei Cheng,

Chunhui Du,

Dandan Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161626 - 161626

Published: March 1, 2025

Language: Английский

Citations

1
3D-printed Ti-Fe2O3 photoanode with conical array for enhanced photoelectrochemical water splitting DOI
Ziqi Zhong,

Borui Du,

Guowu Zhan

et al.

Chemical Physics Letters, Journal Year: 2025, Volume and Issue: unknown, P. 141984 - 141984

Published: Feb. 1, 2025

Language: Английский

Citations

0
Perovskite Type ABO3 Oxides in Photocatalysis, Electrocatalysis, and Solid Oxide Fuel Cells: State of the Art and Future Prospects DOI
Muhammad Humayun, Zhishan Li, Muhammad Israr

et al.

Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Since photocatalytic and electrocatalytic technologies are crucial for tackling the energy environmental challenges, significant efforts have been put into exploring advanced catalysts. Among them, perovskite type ABO3 oxides show great promising catalytic activities because of their flexible physical chemical properties. In this review, fundamentals recent progress in synthesis considered. We describe mechanisms oxygen evolution reactions (OER), reduction (ORR), hydrogen (HER), nitrogen (NRR), carbon dioxide (CO2RR), metal-air batteries details. Furthermore, water splitting, CO2 conversion, pollutant degradation, fixation reviewed as well. also stress applications solid oxide fuel cells (SOFs). Finally, optimization various fields an outlook on current future challenges depicted. The aim review is to present a broad overview advancements development oxides-based catalysts conversion remediation, well roadmap these hot research areas.

Language: Английский

Citations

0
Redox-mediated oxygen evolution reaction: Engineering oxygen vacancies and heterojunctions in CeFeCo-UiO-66/layered double hydroxide via a two-step corrosion strategy DOI
Jianan Wang, Dan Wen, Xiujuan Li

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137687 - 137687

Published: April 1, 2025

Language: Английский

Citations

0
Vacancy-Activated Surface Reconstruction of Perovskite Nanofibers for Efficient Lattice Oxygen Evolution DOI

Lin‐Bo Liu,

Yufeng Tang, Shuo Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

Inducing the surface reconstruction of perovskites to promote oxygen evolution reaction (OER) has garnered increasing attention due enhanced catalytic activities caused by self-reconstructed electroactive species. However, high potential, limited electrolyte penetration, and accessibility perovskite greatly hindered formation Herein, trace Ce-doped La0.95Ce0.05Ni0.8Fe0.2O3−δ nanofibers (LCNF-NFs) were synthesized via electrospinning postcalcination boost reconstruction. The upshift O 2p band center induced rich vacancies lowered specific one-dimensional nanostructure effectively enabled permeation LCNF-NFs. These collectively massive in situ generation Ni/FeO(OH) species on surface. As a result, surface-reconstructed LCNF-NFs exhibited accelerated lattice kinetics with comparatively lower Tafel slope 50.12 mV dec–1, together an overpotential only 342.3 afford current density 10 mA cm–2 0.1 M KOH, which is superior that pristine LaNi0.8Fe0.2O3−δ nanoparticles (NPs) same stoichiometric NPs, commercial IrO2, most state-of-the-art OER electrocatalysts. This study provided deep insights into behaviors defects intellectual approach for constructing various energy storage conversion devices.

Language: Английский

Citations

3
Graphite Carbon Nitride Accelerating Interfacial Electron Transfer of Defect-Rich TiO2 for N2 Photofixation DOI Open Access
Junwu Zhu, Kai Li, Nian-Hua Liu

et al.

Catalysts, Journal Year: 2024, Volume and Issue: 15(1), P. 19 - 19

Published: Dec. 29, 2024

The photocatalytic N2 fixation reaction still faces high activation energy barriers and inefficient electron transfer efficiency, limiting the overall ammonia yield of semiconductors. This communication reports on construction an organic/inorganic g-C3N4/oxygen vacancy-enriched TiO2 (g-C3N4/TiO2-OV) composite system via annealing treatment in H2/Ar mixed atmosphere for enhanced activity. After illumination 4 h, g-C3N4/TiO2-OV with 1 wt% g-C3N4 loading demonstrates optimal 31.6 μmol L−1. study existence oxygen vacancies surface through EPR while also investigating carrier separation transport efficiency material using photoelectric characterization. experimental results indicate that introduction OVs into serves as Lewis acid sites, facilitating adsorption. Moreover, lower onset potential higher current density composites heterojunction significantly decreases interfacial charge recombination barrier, effectively improving towards photo-reduction. work emphasizes importance rational tailoring TiO2-based photocatalysts field fixation.

Language: Английский

Citations

0