نتایج جستجو برای: photoanode

تعداد نتایج: 906  

Journal: :Materials advances 2022

Photoanode passivation, electrolyte additives and electrocatalytic high surface area counter electrodes control the liquid junction quantum dot solar cell (QDSC) performance.

Journal: :Chemical Engineering Science 2022

The efficiency of hydrogen peroxide evolution reaction (H2O2ER) by photoanodic water oxidation is normally limited low yield and poor selectivity. In this work, the surfaces Mo doped BiVO4 are modified Co2+ PO43- ions (CPMB), which has been used as photoanode with improved H2O2 optimal rate CPMB ca. 0.23 µmol·min−1·cm−2, corresponding to 2.5 times pristine photoanode, faradaic for H2O2ER 26%. s...

Journal: Nanochemistry Research 2017

Titanium dioxide-based nanofibers (TiO2 nanofiber) were prepared by an electrospinning technique. The electrospun composite fibers were synthesized at different concentrations of titanium isopropoxide (25.35, 50.69, 76.05 wt%) and calcinated at different temperatures (450 oC, 650 oC and 850 oC) for 2 h. The diameters of nanofibers decreased by increas...

Journal: :Journal of physics 2023

Abstract Dye-sensitized solar cells (DSSC) have recently gained significant attention in a number of markets and are recognized as better option for energy generation than conventional ones, providing clean, sustainable, renewable green energy. Several studies focused on photoanode optimization using machine learning. Photoanode produces performance results the form Voc Isc, which then used mod...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2021

Nanostructuring, oxygen vacancy engineering and surface passivation set a new record performance LaFeO3 photoanode for water oxidation.

Journal: :Materials Chemistry and Physics 2021

The harvesting of electrical energy from sunrays with low cost, clean form and prosperity is an excellent progression. In this context, significant advancement has been made in the solar area terms cell's design to enhance efficiency. Light scattering may benefit cells aspect by extending travelling distance light within photoelectrode film. work, dextran templating high-surface-area contained ...

Journal: :Catalysts 2022

In this paper, we investigate the magnetron sputtering deposition of an Al-layer on Zr-doped FeOOH (Zr-FeOOH) samples to fabricate a Zr/Al co-doped Fe2O3 (Al-Zr/HT) photoanode. An is deposited onto Zr-FeOOH through and thickness Al regulated by differing time. Electrochemical impedance spectroscopy, intensity-modulated photocurrent Mott-Schottky time-resolved photoluminescence spectra analyses ...

Journal: :Chemical communications 2012
Mi-Hee Jung Moo-Jung Chu Man Gu Kang

We demonstrate that the use of poly(vinyl pyrrolidone) (PVP) and acetic acid during the synthesis of TiO(2) nanotubes may result in the synthesis of single-crystal-like anatase TiO(2) with a mainly exposed and chemically active (001) facet. An enhancement in the overall conversion efficiency of dye-sensitized solar cells was observed in a photoanode consisting of TiO(2) single-crystal-like anat...

Journal: :Materials for renewable and sustainable energy 2021

Abstract In this work new naphthalenediimides (NDIs) were synthesized and used as dyes in DSSC. The efficiency ( η ) of the DSSC is influenced by NDIs electronic structural characteristics. It was found a better cell performance with which have broader absorption band shifted to red color, high ƹ values, more adsorption anode surface. gaps determinate UV–vis cyclic voltammetry. LUMO orbitals mo...

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