Results 71 to 80 of about 535,514 (337)

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Effect of TiO2 thin film thickness and dye characterization using Binahong leaf (Anredera cordifolia) as photosensitizer in dye-sensitized solar cell

open access: yesJournal of Aceh Physics Society, 2022
Abstrak. Dye pada sel surya jenis DSSC merupakan bahan utama yang digunakan sebagai fotosensitizer yang dapat menyerap spektrum warna serta sangat berpengaruh bagi efisiensi sel. Pada penelitian ini, dye yang digunakan adalah pigmen klorofil.
Abdan Itsarul Muflih J. Lallo   +3 more
doaj   +1 more source

XAS study of the local environment of impurities in doped TiO2 thin films [PDF]

open access: yes, 2007
In this work we present an X-ray Absorption Spectroscopy characterization of the local environment of the impurity in room temperature ferromagnetic anatase TiO2 thin films doped with Co, Ni, Cu, or Zn, deposited on LaAlO3 substrate by Pulsed Laser ...
A.F. Cabrera   +13 more
core   +2 more sources

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Van der Waals corrected DFT study on the adsorption behaviors of TiO2 anatase nanoparticles as potential molecule sensor for thiophene detection [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2017
Density functional theory investigations were conducted in order to study the effects of the adsorption of thiophene on the structural and electronic properties of TiO2 anatase nanoparticles. The ability of pristine and N-doped TiO2 anatase nanoparticles
Amirali Abbasi, Jaber Jahanbin Sardroodi
doaj   +1 more source

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

open access: yesAdvanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang   +7 more
wiley   +1 more source

The Cleaning Effect of the Photocatalysis of TiO2-B@anatase Nanowires on Biological Activity on a Titanium Surface

open access: yesInternational Journal of Nanomedicine, 2020
Yan Gao,1 Xi Lin,1 Yadong Zhao,2 Shulan Xu,1 Chunhua Lai,1 Zehong Guo,1 Wangxi Wu,1 Xianglong Ding,1 Fang Jia,1 Lei Zhou,1 Ying Liu3 1Center of Oral Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, People’s ...
Gao Y   +10 more
doaj  

Decreasing of Mangan (II) in The Water Using Membrane of Moringa Seed Powder-TiO2 with Variation of Mass TiO2

open access: yesJurnal Riset Kimia, 2023
Mn (II) is a metal ion commonly used in steel alloys, pigment industries, welding, fertilizers, pesticides, ceramics, and electronics. According to the Regulation of the Minister of Health No.
Ana Hidayati Mukaromah   +3 more
doaj   +1 more source

Chemical solution deposition of functional ceramic coatings using ink-jet printing [PDF]

open access: yes, 2015
This paper discusses the development of environmentally-friendly precursor inks suited for ink-jet printing of functional ceramic coatings. We synthesized superconducting materials, SrTiO3 thin films for coated conductor applications and transparent TiO2
De Keukeleere, Katrien   +6 more
core   +2 more sources

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

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