Results 111 to 120 of about 14,340 (301)

TERMAL TREATMENT IMPACT ON STRUCTURE AND COMPOSITION OF POROUS ALUMINA FILMS FORMED AT DIFFERENT VALUES OF FORMING VOLTAGE

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
A fabrication of porous alumina films by electrochemical anodization of aluminium foils and aluminium films deposited on silicon wafers is presented. Anodization process was held in the 2 % sulphuric acid aqueous solution at different forming voltages ...
D. A. Sasinovich, V. B. Visotskiy, S. K. Lazarouk   +2 more
doaj  

Influence of electrical parameters on morphology of nanostructured TiO2 layers developed by electrochemical anodization

MATEC Web of Conferences, 2017
Ti6Al4V alloy micro rough surfaces with TiO2 self-organized nanostructured layers were synthesized using electrochemical anodization in phosphate/fluoride electrolyte, at different end potentials (5V, 10V, 15V, and 20 V).
Strnad Gabriela, German-Sallo Zoltan, Jakab-Farkas Laszlo, Petrovan Cecilia, Portan Diana   +4 more
doaj   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

Advanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh, Giorgio Zoppellaro, Emiliano Fonda, Lukáš Zdražil, Shounik Paul, David Panáček, Hanuman Thorat, Zdeněk Badura, Michele Melchionna, Manuela Bevilacqua, Paolo Fornasiero, Klaus Müllen, Radek Zbořil, Aristides Bakandritsos   +13 more
wiley   +1 more source

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

Advanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao, Ilayda Namli, Joseph Christakiran Moses, Youdi Liu, Suihong Liu, Syed Hasan Askari Rizvi, Yasar Ozer Yilmaz, Ibrahim T. Ozbolat   +7 more
wiley   +1 more source

Nonuniformity in Selective Anodization of Silicon and its Application to Micro-Tip Fabrication

, 2002
Characteristics of selective anodization of p+-type Si have been studied. Temporal evolution of the etching front was visualized by periodic porosity modulated anodization. The etching front proceeded inside along the bottom of mask making its angle with
S. Uehara, N. Negishi, T. Matsubara
core   +1 more source

How the Porous Transport Layer Dictates Membrane Electrode Assembly Performance of IrO2 Catalysts

Advanced Functional Materials, EarlyView.
The Schottky barrier formed at the catalyst | PTL interface critically governs both the initial performance and long‐term durability of the PEMWE, and its magnitude is dictated by the catalyst's work function. This limitation can be resolved by combining a rutile IrO2 core for efficient electron transfer with an amorphous IrOx shell for high surface ...
Hyeseong Jeon, Seunghee Han, Jonghyeon Park, Sujin Park, Wonjae Lee, Jihan Kim, Hyunjoo Lee   +6 more
wiley   +1 more source

Modulation of Surface‐Associated Transport in (Bi1‐xSbx)2Te3 via Battery‐ Inspired Solid‐State Iontronic Gating

Advanced Functional Materials, EarlyView.
Iontronic gating in a battery‐inspired device modulates the relative weight of surface‐associated and bulk‐like transport fingerprints in (Bi1‐xSbx)2Te3, resulting in phenomenological valve‐like transport behavior. The strongest WAL‐associated coherent transport signatures emerge near the transport‐defined carrier compensation regime at ultra‐low gate ...
Gabriel Vinicius de Oliveira Silva, Reza Asadi, He Ren, Rabiul Islam, Jagadeesh Moodera, Guo‐Xing Miao   +5 more
wiley   +1 more source

Modulation of Transmission Spectra of Anodized Alumina Membrane Distributed Bragg Reflector by Controlling Anodization Temperature

Nanoscale Research Letters, 2009
We have successfully prepared anodized alumina membrane distributed Bragg reflector (DBR) using electrochemical anodization method. The transmission peak of this distributed Bragg reflector could be easily and effectively modulated to cover almost any ...
Zheng WenJun, Fei GuangTao, Wang Biao, De Zhang Li   +3 more
doaj   +1 more source

Self‐Adaptive Gradient Interphase Enables Durable Solid‐State Lithium Metal Batteries

Advanced Functional Materials, EarlyView.
This work presents a machine learning‐guided interfacial design that forms a self‐adaptive graded interphase on lithium metal anode. A B105M40 composite interlayer evolves into lithiophilic, porous, and fast‐ion‐conducting phases, enabling intimate contact, dendrite suppression, and uniform lithium deposition.
Hongmin Liu, Rui Li, Yitao Lou, Xinran Gao, Min Xu, Shijian Wang, Nana Wang, Huakun Liu, Guoxiu Wang, Zhongchao Bai   +9 more
wiley   +1 more source