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Journal ArticleDOI

Electrodeposited p-type Co3O4 with high photoelectrochemical performance in aqueous medium

TLDR
In this paper, a Co3O4 photocathodes with different amounts of CuO, were synthesized on fluorine doped tin oxide (FTO) via electrodeposition from a chloride bath containing suspended starch particles.
Abstract
p-Type Co3O4 photocathodes with different amounts of CuO, were synthesized on fluorine doped tin oxide (FTO) via electrodeposition from a chloride bath containing suspended starch particles. All of the fabricated samples were photoresponsive toward water splitting in 0.5 M Na2SO4 under simulated sun-light. The PEC performance was evaluated using LSPV, chronoamperometry, and EIS techniques. The samples fabricated via the electrodeposition/anodizing/annealing process showed greater photocurrent response compared to the electrodeposition/annealing process. Among all the samples, the sample with an atomic composition% of Co: 24.9, Cu: 25.0 and O: 50.1 showed an optimum photocurrent response (∼6.5 mA cm−2 vs. SCE at −0.3 V). The structure, morphology/composition and optical response were characterized by XRD, FESEM/EDX and UV-Vis techniques, respectively.

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Journal ArticleDOI

Progress in Developing Metal Oxide Nanomaterials for Photoelectrochemical Water Splitting

TL;DR: In this article, a review of the recent progress using metal oxides as photoelectrodes and co-catalysts for PEC water splitting is summarized and their performance, limitations and potentials are also discussed.
Journal ArticleDOI

Graphitic carbon nitride (g-C3N4) electrodes for energy conversion and storage: a review on photoelectrochemical water splitting, solar cells and supercapacitors

TL;DR: In this article, a broad spectrum of applications pertinent to graphitic carbon nitride (g-C3N4) based electrodes and their applications in solar cells, electrocatalysts and supercapacitors are reviewed.
Journal ArticleDOI

Synthesis, characterization, and ammonia gas sensing properties of Co3O4@CuO nanochains

TL;DR: In this article, the Co3O4@CuO composite nanochains (CCNCs) were fabricated by electrospinning approach and controlled annealing route, and the results indicated that the CCNCs were promising candidates for reliable high-performance gas sensors at room temperature.
Journal ArticleDOI

Microplasma-assisted electrochemical synthesis of Co3O4 nanoparticles in absolute ethanol for energy applications

TL;DR: In this article, the microplasma assisted anodization of Co foil with charge balanced by the micro plasma at the flowing-helium/pure-ethanol interface under ambient conditions was demonstrated.
Journal ArticleDOI

Photoelectrocatalytic sea water splitting using Kirkendall diffusion grown functional Co3O4 film

TL;DR: In this article, a photo-induced Mott-Schottky analysis was applied to find the flat band potential corresponding to the lower band gap value and exhibited strong influence on the majority carrier concentrations and shifting of flatband potential.
References
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Journal ArticleDOI

Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction

TL;DR: The catalytically active Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.
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Highly active oxide photocathode for photoelectrochemical water reduction

TL;DR: A highly active photocathode for solar H(2) production is presented, consisting of electrodeposited cuprous oxide, which was protected against photocathodic decomposition in water by nanolayers of Al-doped zinc oxide and titanium oxide and activated for hydrogen evolution with electroDeposited Pt nanoparticles.
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Nitrogen-Doped ZnO Nanowire Arrays for Photoelectrochemical Water Splitting

TL;DR: The rational synthesis of nitrogen-doped zinc oxide (ZnO:N) nanowire arrays, and their implementation as photoanodes in photoelectrochemical (PEC) cells for hydrogen generation from water splitting applications suggest substantial potential of metal oxide nanowires arrays with controlled doping in PEC water splitting Applications.
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Electrodeposited cobalt-sulfide catalyst for electrochemical and photoelectrochemical hydrogen generation from water.

TL;DR: The facile preparation of this Co-S film, along with its low overpotential, high activity, and long-term aqueous stability, offer promising features for potential use in solar energy applications.
Journal ArticleDOI

Hybrid structure of cobalt monoxide nanowire @ nickel hydroxidenitrate nanoflake aligned on nickel foam for high-rate supercapacitor

TL;DR: In this paper, a hybrid nanostructure of porous cobalt monoxide nanowire @ ultrathin nickel hydroxidenitrate nanoflake is directly synthesized on a 3D nickel foam by a facile two-step hydrothermal route.
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