Controlled crystal growth determines the shape, size, and exposed facets of a crystal, which usually has different surface physicochemical properties. Herein we report size facet control synthesis anatase TiO2 nanocrystals (NCs). The are found to play crucial role in photocatalytic activity NCs. This is due known preferential flow photogenerated carriers specific facets. Although, recent years, main focus been on increasing area high-energy such as {001} {100} improve activity, here...

The electrochemical synthesis of syngas (CO and H2) has garnered considerable attention in the context Fischer–Tropsch (FT) employing thermal catalysts. Nonetheless, need for a novel, cost-effective technique persists. In this investigation, we introduce direct (dEC) approach FT that functions under ambient conditions by utilizing p-block element (Sn In) overlaid Cu electrode. Surface *CO H* species were obtained an electrolytic medium through CO2 + H+ e– → HOOCad (or CO adsorption)...

Cu−Cu2O core−shell nanoparticles (NPs) of different shapes over an extended nanosize regime 5−400 nm have been deposited on a H-terminated Si(100) substrate by using simple, one-step, templateless, and capping-agent-free electrochemical method. By precisely controlling the electrolyte concentration [CuSO4·5H2O] below their respective critical values, we can obtain cubic, cuboctahedral, octahedral NPs average size number density varying deposition time under few seconds (<6 s). Combined...

Adsorption and UV/visible photocatalytic activity of echinoid-like Ag Ti-loaded BiOI were tested for methyl orange, Rhodamine B methylene blue.

Electrochemical oxygen evolution reaction (OER) involves high overpotential at the evolving electrode and thereby suffers significant energy loss in proton exchange membrane water electrolyzer. To reduce OER overpotential, precious ruthenium iridium oxides are most commonly used as anode electrocatalyst. Here we report marked reduction for using transition metal (TM) doped TiO2 nanocrystals (NCs). This is attributed to d-orbitals splitting of TMs TM-doped NCs their interactions with...

The exposed facets of a crystal are known to be one the key factors its physical, chemical and electronic properties. Herein, we demonstrate role amines on controlled synthesis TiO2 nanocrystals (NCs) with diverse shapes different facets. chemical, physical properties as-synthesized NCs were evaluated their photoredox activity was tested. It found that intrinsic can enhanced by controlling environment surface, i.e.; through morphology evolution. In particular, rod shape ∼25% {101} ∼75%...

An efficient, cost-effective, and earth-abundant catalyst that could drive the production of hydrogen from water without or with little external energy is ultimate goal toward economy. Herein, nanoplates tungsten oxide its hydrates (WO3·H2O) as promising electrocatalysts for evolution reaction (HER) are reported. The square-shaped stacked WO3·H2O synthesized at room temperature under air in ethanol only, making it a green synthesis strategy. repeated electrochemical cyclic voltammetry cycles...

Exploring bi- and trimetallic catalysts in electrochemical CO2 reduction (EC CO2R) has been a focal point for discovering products. This study investigates the distinct roles of metal elements CO2R using CuNiZn CuZn electrodes. Bimetallic exhibits superior activity, yielding substantial amounts CO, CH4, C2H4, various liquid products, including formate, ethanol, acetate, propanol, isopropanol. The on suggests potential connections to Fischer–Tropsch (FT) synthesis, indicating their capability...

We present the synthesis of a unique vertically aligned ZnO-TiO2 core–shell nanowires (NWs) heterostructure on an Si-wafer using chemical vapor deposition method. The structural study shows well-developed NWs heterostructure. This displays photocurrent density 1.23 mA cm–2, which is 2.41 times higher than pristine ZnO NWs. A cathodic shift in flat band potential and lower onset over indicates more favorable properties for photoelectrochemical water splitting with photoconversion efficiencey...

Controlling the crystal phase of a material using solution-based method is challenging task and has significant consequence to material's properties. Herein we report size-controlled synthesis tungsten oxide hydrates at room temperature via simple precipitation method. In absence presence oxalic acid, orthorhombic WO3·H2O monoclinic WO3·2H2O nanoplates size in range 200–600 (thickness <50 nm) 40–200 nm <20 were respectively synthesized. Oxalic acid found play central role transition due its...

The synthesis of nanostructured materials with controlled shape without using a capping agent and/or hazardous chemical is one the major existing challenges. Herein, we report facile precipitation method to synthesize stacked orthorhombic tungsten trioxide hydrate (WO3·H2O) nanoplates by simply mixing WCl6 (0.025 M) in ethanol at room temperature for 1 h. On subsequent solvothermal treatment WO3·H2O 200 °C ethanol, formation monoclinic (WO3) nanowires <20 nm diameter demonstrated. morphology...