Enhancement of Selective Catalytic Oxidation of Lignin β‐O‐4 Bond via Orbital Modulation and Surface Lattice Reconstruction DOI
Haonan Chen,

Baolong Qin,

Qi Zhang

и другие.

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 18, 2024

Abstract The orbital modulation and surface lattice reconstruction represent an effective strategy to regulate the interaction between catalyst interface sites intermediates, thereby enhancing catalytic activity selectivity. In this study, crystal of Au−K/CeO 2 can undergo reversible transformation by tuning coordination environment Ce, which enables activation C β −H bond oxidative cleavage β‐O α −C bonds, leading 2‐phenoxy‐1‐phenylethanol. t 2g orbitals Au 5d hybridize with 2p oxygen in CeO via π‐coordination, modulating Ce 4 f reconstructing framework, as well increasing vacancies. formed synergy clusters reconstructed Ce−O L1 −Au structure doped K play dual roles. On one hand, it activates bond, facilitating enolization pre‐oxidized 2‐phenoxy‐1‐phenylethanone. other through single‐electron transfer involving 3+ 4f 1 adsorption vacancies, enhances bonds. This study elucidates complex mechanistic roles properties selective oxidation lignin β‐O‐4 bond.

Язык: Английский

Noble metal confined in defect-enriched NiCoO2 with synergistic effects for boosting alkaline electrocatalytic oxygen evolution DOI
Yixue Xu, Fan Qiu, Shifan Zhu

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 686, С. 509 - 515

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1
Boosting selective CO2 reduction via strong spin-spin coupling on dual-atom spin-catalysts DOI

Yueyue Shao,

Jia Zhou

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 688, С. 548 - 561

Опубликована: Фев. 25, 2025

Язык: Английский

Процитировано

0
Fundamental Mechanistic Insights on the Peripherally Substituted Iron Phthalocyanine Selectively Catalyzing the Sulfur Redox Reactions DOI
Yu Wang, Weijie Chen, Yu Du

и другие.

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104157 - 104157

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Accelerating *OH Desorption via Electron‐Delocalized CuTd2+─O─CoOh3+ for Water Purification DOI Open Access
Jianhua Liang,

Cong‐Yi Du,

Yin Xian

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Abstract The electrochemical oxidation (EO) process has the unique advantage of in situ generation reactive oxygen species for organic synthesis and wastewater purification. However, strong binding H 2 O anode inhibits desorption species, exacerbating their peroxidation into thus weakening EO performance. In this work, an electron delocalization strategy is proposed by introducing Cu 2+ tetrahedral sites (A Td ) Co 3 4 (Cu x 3‐x to trigger super‐exchange effect ─O─Co Oh 3+ , constructing electron‐rich accelerating *OH promotion Experimental results confirm electron‐delocalized disrupts kinetic equilibrium evolution reaction balances energy barriers adsorption, dehydrogenation, over sites, realizing •OH‐mediated process. required free •OH decreases from 1.14 0.70 eV. extraordinary activity elimination multiple aromatic contaminants demonstrates feasibility practical landfill leachate treatment. This study offers in‐depth understanding active formation systems guides design superior stable electrodes efficient conversion matter.

Язык: Английский

Процитировано

0
Regulating Reconstruction‐Engineered Active Sites of CoP Electrocatalyst by Br Ions During the Oxygen and Hydrogen Evolution Reaction DOI Creative Commons
Jing Yao, Yuanyuan Zhang, Feng Gao

и другие.

Energy & environment materials, Год журнала: 2025, Номер unknown

Опубликована: Март 23, 2025

An in‐depth understanding of the catalyst surface evolution is crucial for precise control active sites, yet this aspect has often been overlooked. This study reveals spontaneous anion regulation mechanism Br‐doped CoP electrocatalysts in alkaline hydrogen reaction (HER) and oxygen (OER). The introduction Br modulates electronic structure Co site, endowing Br‐CoP with a more metallic character. In addition, P ion leaching promotes situ reconstruction Br‐CoOOH, which real site OER reaction. Meanwhile, HER situation different. On basis leaching, ions formation CoP‐Co(OH) 2 species. doping enhances adsorption *H, showing excellent H free energy, thereby greatly improving activity. Simultaneously, it also OOH*, effectively facilitating occurrence reactions. only needs 261 76 mV overpotential to drive current density 20 mA cm −2 10 , can be maintained unchanged 100 h. provides new insights into strategies mechanisms.

Язык: Английский

Процитировано

0
Activating and stabilizing lattice oxygen by synergetic defect engineering and surface reconstruction into CeOx/CoP for electrocatalytic oxygen evolution DOI
Jing Wu, Qian Zhang, Jiaojiao Zhang

и другие.

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163282 - 163282

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Manipulating Electron Structure through Dual-Interface Engineering of 3C-SiC Photoanode for Enhanced Solar Water Splitting DOI Creative Commons
Hui Zeng, Satoru Yoshioka, Weimin Wang

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Interface engineering is crucial for enhancing the efficiency of semiconductor-based solar energy devices. In this work, we report a novel dual-interface strategy by designing Ni(OH)2/Co3O4/3C-SiC photoanode that achieves remarkable enhancements in photoelectrochemical (PEC) water splitting performance. The optimized delivers photocurrent density 1.68 mA cm-2 at 1.23 V vs reversible hydrogen electrode (RHE), representing an 8-fold increase compared to pristine 3C-SiC, along with excellent operational stability. architecture, Co3O4 serves as highly efficient hole-extraction layer and forms p-n junction separation photogenerated electron-hole pairs. At Ni(OH)2/Co3O4 interface, formation Ni-O-Co bonds facilitates rapid charge transfer accelerates oxygen evolution reaction (OER) kinetics. microwave photoconductivity decay (μ-PCD) measurements confirm prolonged minority carrier lifetime, demonstrating critical role electronic structure modulation improving reducing recombination. Using advanced synchrotron radiation X-ray absorption spectroscopy, unveil modifications interfacial induced their roles PEC These findings establish clear relationship between modulation, dynamics, performance, providing new insights into interface design strategies solar-driven systems.

Язык: Английский

Процитировано

0
Enhancement of Selective Catalytic Oxidation of Lignin β‐O‐4 Bond via Orbital Modulation and Surface Lattice Reconstruction DOI
Haonan Chen,

Baolong Qin,

Qi Zhang

и другие.

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 18, 2024

Abstract The orbital modulation and surface lattice reconstruction represent an effective strategy to regulate the interaction between catalyst interface sites intermediates, thereby enhancing catalytic activity selectivity. In this study, crystal of Au−K/CeO 2 can undergo reversible transformation by tuning coordination environment Ce, which enables activation C β −H bond oxidative cleavage β‐O α −C bonds, leading 2‐phenoxy‐1‐phenylethanol. t 2g orbitals Au 5d hybridize with 2p oxygen in CeO via π‐coordination, modulating Ce 4 f reconstructing framework, as well increasing vacancies. formed synergy clusters reconstructed Ce−O L1 −Au structure doped K play dual roles. On one hand, it activates bond, facilitating enolization pre‐oxidized 2‐phenoxy‐1‐phenylethanone. other through single‐electron transfer involving 3+ 4f 1 adsorption vacancies, enhances bonds. This study elucidates complex mechanistic roles properties selective oxidation lignin β‐O‐4 bond.

Язык: Английский

Процитировано

0