Results 71 to 80 of about 329,958 (322)

Unveiling the Hard Anodization Regime of Aluminum: Insight into Nanopores Self-Organization and Growth Mechanism.

ACS Applied Materials and Interfaces, 2015
Pores growth mechanism and their self-ordering conditions are investigated for nanoporous alumina membranes synthesized by hard anodization (HA) of Al in a broad range of anodic conditions, covering oxalic acid electrolytes with concentrations from 0.300
V. Vega, Javier García, J. M. Montero-Moreno, B. Hernando, J. Bachmann, V. Prida, K. Nielsch   +6 more
semanticscholar   +1 more source

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

Advanced 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, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

A Highly Controllable Electrochemical Anodization Process to Fabricate Porous Anodic Aluminum Oxide Membranes

Nanoscale Research Letters, 2015
Due to the broad applications of porous alumina nanostructures, research on fabrication of anodized aluminum oxide (AAO) with nanoporous structure has triggered enormous attention. While fabrication of highly ordered nanoporous AAO with tunable geometric
Yuanjing Lin, Qingfeng Lin, Xue Liu, Yuan Gao, Jin He, Wenli Wang, Z. Fan   +6 more
semanticscholar   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Effect of Anodization time on Morphology and Electrochemical Impedance of Andic Oxide Films on Titanium Alloy in Tartrate Solution

International Journal of Electrochemical Science, 2014
The present study investigated the effect of anodization time on the anodic oxide films formed on titanium alloy Ti-6Al-2Zr-1Mo-1V. The morphology, surface roughness, crystal structure, and electrochemical impedance of the anodic oxide films were studied
Liang Wu, Jianhua Liu, Mei Yu, Songmei Li, Hongxing Liang, Mengqi Zhu   +5 more
doaj   +1 more source

Hierarchical 3D ZnO nanowire structures via fast anodization of zinc

, 2015
ZnO nanowire structures are used today in a variety of applications, from gas/chemical sensing to photocatalysis, photovoltaics and piezoelectric actuation.
David O. Miles, P. Cameron, D. Mattia
semanticscholar   +1 more source

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

Advanced 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, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

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

Advanced 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, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Fabrication of WO3·2H2O nanoplatelet powder by breakdown anodization

Electrochemistry Communications, 2019
Herein, the electrochemical synthesis of WO3 nanoplatelet powder is demonstrated in a novel electrolyte composed of ethylene glycol (EG), H2O and 1-ethyl-3-methylimidazolium tetrafluoroborate (EmimBF4). On applying an anodization potential of 40 V to the
Shizhao Wu, Yuru Li, Xiaodan Chen, Jingyi Liu, Jing Gao, Guohua Li   +5 more
doaj   +1 more source

Impact of Pretreatment of Metal Glass Fe70Cr15B15 on Anodization in 1-butyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid

Metals, 2020
The impact of preliminary treatment (mechanical abrasion; chemical etching and anodization in ionic liquid) on the surface structure and corrosion behavior of Fe70Cr15B15 metal glass was studied.
Olga Lebedeva, Victoria Snytko, Irina Kuznetsova, Konstantin Kalmykov, Dmitry Kultin, Natalia Root, Svetlana Philippova, Sergei Dunaev, Alexandre Zakharov, Leonid Kustov   +9 more
doaj   +1 more source