Reductive Supramolecular In Situ Construction of Nano‐Platinum Effectively Couples Cathodic Hydrogen Evolution and Anodic Alcohol Oxidation DOI Creative Commons
Rui Bai,

Qiao Ye,

Cuiyu Li

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

The deployment of high-performance catalysts and the acceleration anodic reaction kinetics are key measures to achieve maximum energy efficiency in overall water electrolysis hydrogen production systems. Here, an innovative strategy is developed by directly constructing a supramolecular framework embedded with boron clusters cucurbituril as reducing agent. This approach enabled situ conversion Pt⁴⁺ into highly dispersed, small-sized nano-platinum, which subsequently distributed on boron-carbon-nitrogen (BCN) matrix. resulting Pt/BNHCSs catalyst demonstrates ability facilitate electrocatalytic splitting for across multiple scenarios while simultaneously accelerating methanol oxidation kinetics, significantly outperforming commercial Pt/C various aspects. cathodic evolution-anodic coupling system constructed using greatly reduces consumption system. In attenuated total reflection Fourier transform infrared online differential electrochemical mass spectrometry reveals that interface enhances H₂O adsorption promotes CH₃OH→CO process, density functional theory calculations indicated BCN support facilitated evolution H₂ CH₃OH CO, elucidating mechanism promoted oxidation.

Язык: Английский

Manipulating Heterogeneous Surface/Interface Reconstruction of Nickel Molybdate Nanofiber by In Situ Prussian Blue Analogs Etching Strategy for Oxygen Evolution DOI Creative Commons

Xinyao Ding,

Lirong Zhang, Peng Yu

и другие.

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

Опубликована: Янв. 22, 2025

Bimetallic oxides are promising electrocatalysts due to their rich composition, facile synthesis, and favorable stability under oxidizing conditions. This paper innovatively proposes a strategy aimed at constructing one‐dimensional heterostructure (Fe–NiO/NiMoO 4 nanoparticles/nanofibers). The commences with the meticulous treatment of NiMoO nanofibers, utilizing in situ etching techniques induce formation Prussian Blue Analog compounds. In this process, [Fe(CN) 6 ] 3− anions react host layer form steady NiFe PBA. Subsequently, surface/interface reconstituted nanofibers undergo direct oxidation, leading reconfiguration surface structure unique Fe–NiO/NiMoO heterostructure. catalyst showed markedly enhanced electrocatalytic performance for oxygen evolution reaction. Density functional theory results reveal that incorporation Fe as dopant dramatically reduces Gibbs free energy associated rate‐determining step reaction pathway. pivotal transformation directly lowers activation barrier, thereby significantly enhancing electron transfer efficiency.

Язык: Английский

Процитировано

0
Biochar matrix anchoring pure phase Fe3C to promote advanced oxidation: A reliable pathway for organic wastewater purification DOI

Jinghan Peng,

Haixue Zhao,

Haijian Wang

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131845 - 131845

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Reductive Supramolecular In Situ Construction of Nano‐Platinum Effectively Couples Cathodic Hydrogen Evolution and Anodic Alcohol Oxidation DOI Creative Commons
Rui Bai,

Qiao Ye,

Cuiyu Li

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

The deployment of high-performance catalysts and the acceleration anodic reaction kinetics are key measures to achieve maximum energy efficiency in overall water electrolysis hydrogen production systems. Here, an innovative strategy is developed by directly constructing a supramolecular framework embedded with boron clusters cucurbituril as reducing agent. This approach enabled situ conversion Pt⁴⁺ into highly dispersed, small-sized nano-platinum, which subsequently distributed on boron-carbon-nitrogen (BCN) matrix. resulting Pt/BNHCSs catalyst demonstrates ability facilitate electrocatalytic splitting for across multiple scenarios while simultaneously accelerating methanol oxidation kinetics, significantly outperforming commercial Pt/C various aspects. cathodic evolution-anodic coupling system constructed using greatly reduces consumption system. In attenuated total reflection Fourier transform infrared online differential electrochemical mass spectrometry reveals that interface enhances H₂O adsorption promotes CH₃OH→CO process, density functional theory calculations indicated BCN support facilitated evolution H₂ CH₃OH CO, elucidating mechanism promoted oxidation.

Язык: Английский

Процитировано

0