Contemporary advancements and prospective outlook on feasible lithium-ion batteries based on silicon anodes

Journal of Alloys and Compounds, Год журнала: 2025, Номер 1014, С. 178763 - 178763

Опубликована: Янв. 22, 2025

Язык: Английский

2D Titanate Nanosheet–Supported NiMoO_x Core@shell Nanospikes for Overall Electrocatalytic Water-Splitting Reactions

Energy & Fuels, Год журнала: 2024, Номер 38(17), С. 16820 - 16833

Опубликована: Авг. 22, 2024

Carbon-based materials that act as supports to design electrocatalysts have been actively pursued for fuel cells and overall water-splitting (OWS) applications. However, carbon-based face serious carbon corrosion at high positive potentials, affecting catalyst activity stability hindering practical applicability. Herein, carbon-free transition metal-oxide–based 2D titanate nanosheet support has proposed, demonstrating the applicability of nanosheets an alternative designing electrocatalysts. A new chemical route produce large via exfoliation discovered. Colloidal allows growth active nickel molybdenum oxide (NiMoOx) forming Titanate@NiMoOx core–shell materials. Fine heat treatment different temperatures facilitates in situ formation MoOx NiMoOx layers on boosting catalytic activity. An increase semiconductivity phase a simultaneous decay component, resulting poor The optimal Titanate@NiMoOx_200 required overpotential 0.54 1.19 VRHE HER OER cell voltage 1.75 V deliver current density 10 mA cm–2 with spectacular up 24 h KOH media. Spectroscopic microscopy analyses prove efficient electronic interaction between hybrid components. Density functional theory experimental work suggest MoOx/NiMoOx shows higher water adsorption energy excellent performance. This sheds light feasibility application rational diverse from noble non-noble metal-based range electrochemical

Язык: Английский

Research progress of carbon nanotubes as anode materials for lithium-ion batteries: a mini review

Carbon letters, Год журнала: 2024, Номер unknown

Опубликована: Окт. 5, 2024

Язык: Английский