نتایج جستجو برای: electrochemical exfoliation

تعداد نتایج: 54133  

2016
Wei Feng Peng Long Yiyu Feng Yu Li

Fluorinated graphene, an up-rising member of the graphene family, combines a two-dimensional layer-structure, a wide bandgap, and high stability and attracts significant attention because of its unique nanostructure and carbon-fluorine bonds. Here, we give an extensive review of recent progress on synthetic methods and C-F bonding; additionally, we present the optical, electrical and electronic...

2018
Jin Soo Kang Jin Kim Myeong Jae Lee Yoon Jun Son Dong Young Chung Subin Park Juwon Jeong Ji Mun Yoo Heejong Shin Heeman Choe Hyun S Park Yung-Eun Sung

Demands for sustainable production of hydrogen are rapidly increasing because of environmental considerations for fossil fuel consumption and development of fuel cell technologies. Thus, the development of high-performance and economical catalysts has been extensively investigated. In this study, a nanoporous Mo carbide electrode is prepared using a top-down electrochemical process and it is ap...

Journal: :ChemSusChem 2011
Troy K Townsend Erwin M Sabio Nigel D Browning Frank E Osterloh

Layered K(4)Nb(6)O(17) is a known UV-light-driven photocatalyst for overall water splitting, with a band gap of 3.5 eV. Following ion exchange and exfoliation with tetrabutylammonium hydroxide, the layered material separates into nanosheets that coil into 1.0±0.5 μm long and 10±5 nm wide nanoscrolls to reduce their surface energy. Pt and IrO(x) (x=1.5-2) nanoparticles were photochemically depos...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2018
Haoguang Huang Siwei Yang Qingtian Li Yucheng Yang Gang Wang Xiaofei You Baohua Mao Huishan Wang Yu Ma Peng He Zhi Liu Guqiao Ding Xiaoming Xie

The controllable and efficient electrochemical preparation of highly crystalline graphene quantum dots (GQDs) in an aqueous system is still challenging. Here, we developed a weak electrolyte-based (typically an ammonia solution) electrochemical method to enhance the oxidation and cutting process and therefore achieve a high yield of GQDs. The yield of GQDs (3-8 nm) is 28%, approximately 28 time...

Journal: :Turkish journal of engineering 2021

Graphene is a single layer of graphite with hexagonal structure which have stacked layers. has recently been recognized by its researchers due to it sp2 bonds in lattice, the two-dimensional atomic thickness, and superior electrical, electrochemical, optical, thermal, mechanical properties lightness. Liquid phase exfoliation (LPE) most promising method graphene research produce high quality pro...

Journal: :iranian journal of otorhinolaryngology 0
mahdi gholami oral and maxillofacial disease research center, dental faculty, mashhad university of medical science, mashhad, iran. reza shahakbari department of oral and maxillofacial surgery, dental faculty, mashhad university of medical science, mashhad, iran. somayeh abdolahpour department of oral and maxillofacial surgery, dental faculty, mashhad university of medical science, mashhad, iran. masoud hatami department of oral and maxillofacial medicine, dental faculty, mashhad university of medical science, mashhad, iran. azam roshanmir dentistry research center, dental faculty, golestan university of medical science, gorgan, iran.

introduction: herpes zoster infection (hzi) is a viral disease with painful skin rashes and blisters in a limited area on one side of the body, often in a strip. osteonecrosis with spontaneous exfoliation of teeth in association with hzi of the mandibular nerve is a rare phenomenon. in this report, such an unusual complication of hzi is presented.   case report: the clinical course of a 53-year...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2011
Sadok Letaief Jérôme Leclercq Yun Liu Christian Detellier

A simple chemical route for the exfoliation of kaolinite in the presence of polymerizable ionic liquids and the resulting obtainment of exfoliated nanocomposites is reported. The exfoliation was achieved using three different ionic liquids structurally bearing a vinyl group: 1-methyl-3-(4-vinylbenzyl)imidazolium chloride salt (IL_1), 1-methyl-1-(4-vinylbenzyl)pyrrolidinium chloride (IL_2), and ...

Journal: :Nanoscale 2014
Konstantinos Kouroupis-Agalou Andrea Liscio Emanuele Treossi Luca Ortolani Vittorio Morandi Nicola Maria Pugno Vincenzo Palermo

The main advantage for applications of graphene and related 2D materials is that they can be produced on large scales by liquid phase exfoliation. The exfoliation process shall be considered as a particular fragmentation process, where the 2D character of the exfoliated objects will influence significantly fragmentation dynamics as compared to standard materials. Here, we used automatized image...

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