Self-Supported NiCo2S4@Ce-NiFe LDH/CeO2 Nanoarrays for Electrochemical Water Splitting DOI
Jun Yu, Nannan Zhang,

Jie Li

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

The design of high-performance OER catalysts is crucial for efficient electrochemical water splitting (EWS). Herein, a NiCo2S4@Ce-NiFe LDH/CeO2 heterostructure nanoarray electrocatalyst with abundant oxygen defect sites reported. introduction Ce species activates the lattice in oxyhydroxides, inducing transformation catalytic mechanism toward oxidation (LOM) pathway, bypassing thermodynamic limitation adsorbate evolution (AEM), and strengthening intrinsic activity material. Moreover, reversible transitions between different states high storage capacity CeO2 regulate adsorption behavior reaction intermediates, allowing it to be easier material enrich oxygen-containing thereby improving kinetics. Accordingly, exhibits remarkable performance (η50 = 226 mV, η100 244 mV) brilliant stability. Additionally, presence protective layer inhibits impact Cl- other pollutants seawater, which enables perform satisfactorily seawater electrolysis, as well. This study offers fresh perspective on defect-rich catalysts.

Язык: Английский

Superhydrophilic Bimetallic Sulfide Nanosheets for Hydrogen Production Using Urea-Assisted Electrocatalytic Water Splitting DOI
Yuqian Bao, Ying Yang,

Jiayao Jiang

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Electrolysis of industrial and human urea-containing wastewater is beneficial to the environment, using urea oxidation reaction (UOR) instead oxygen evolution (OER) saves energy effectively improves performance electrocatalytic hydrolysis for hydrogen production. The Co9S8/Ni3S2 nanosheet structures on nickel foam (NF) are an active hydrophilic catalyst UOR (HER). This electrocatalyst needs a low overpotential 136 mV attain 10 mA·cm–2 HER, it can reach current density 100 at working potential 1.36 V vs RHE. introduction Co element regulates both morphology electronic structure. former results in Co9S8/Ni3S2/NF offering more sites with larger specific surface area morphology, while latter drives S move direction binding energy. examination cobalt sulfides as bifunctional energy-efficient electrolytic H2 production purification urea-rich harmless has significantly advanced due this work.

Язык: Английский

Процитировано

0
Self-Supported NiCo2S4@Ce-NiFe LDH/CeO2 Nanoarrays for Electrochemical Water Splitting DOI
Jun Yu, Nannan Zhang,

Jie Li

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

The design of high-performance OER catalysts is crucial for efficient electrochemical water splitting (EWS). Herein, a NiCo2S4@Ce-NiFe LDH/CeO2 heterostructure nanoarray electrocatalyst with abundant oxygen defect sites reported. introduction Ce species activates the lattice in oxyhydroxides, inducing transformation catalytic mechanism toward oxidation (LOM) pathway, bypassing thermodynamic limitation adsorbate evolution (AEM), and strengthening intrinsic activity material. Moreover, reversible transitions between different states high storage capacity CeO2 regulate adsorption behavior reaction intermediates, allowing it to be easier material enrich oxygen-containing thereby improving kinetics. Accordingly, exhibits remarkable performance (η50 = 226 mV, η100 244 mV) brilliant stability. Additionally, presence protective layer inhibits impact Cl- other pollutants seawater, which enables perform satisfactorily seawater electrolysis, as well. This study offers fresh perspective on defect-rich catalysts.

Язык: Английский

Процитировано

0