Results 51 to 60 of about 92,201 (315)

Raman evaluation of graphene oxide dispersed in naphthenic oil [PDF]

Anais da Academia Brasileira de Ciências
Graphene oxide is a revolutionary material that enhances properties in electronics, automotive, civil construction, aerospace, and industrial sectors.
ALAN PASSERO, TAYNARA A. DE CARVALHO, NATALIA B. SANCHES, LIDIA M.S. MURAKAMI, JORGE CARLOS N. DUTRA, RITA DE CÁSSIA L. DUTRA   +5 more
doaj   +1 more source

Synthesis and study of photoelectrical properties of planar ensembles based on TiO2 and graphene oxide

Қарағанды университетінің хабаршысы. Физика сериясы, 2020
In this paper, planar structures of various configurations based on TiO2 and graphene oxide are synthesized. Using SEM, it is shown that graphene oxide forms an insular film both on the surface and under the TiO2 layer during deposition.
А.Ж. Жумабеков, А.Е. Садыкова, Е.В. Селиверстова   +2 more
doaj   +1 more source

Prototyping and Evaluation of Graphene-Based Piezoresistive Sensors

Electronic Materials, 2022
In this work, the electrical properties of graphene papers were investigated with the aim of developing pressure sensor prototypes for measuring pressures up to 2 kPa. In order to determine which graphene paper would be the most suitable, three different
Lucas Florêncio, Jéssica Luzardo, Marcelo Pojucan, Victor Cunha, Alexander Silva, Rogério Valaski, Joyce Araujo   +6 more
doaj   +1 more source

Thermal Reduction Study of Graphene Oxide Paper

IOP Conference Series: Materials Science and Engineering, 2017
We report the preparation, reduction and characterization of GO paper that obtained by assembly of individual GO sheets. The free standing GO paper was prepared from 4 mg/ml GO dispersed in water, and following by evaporation of water and then detach from the petri dish.
null Fitrilawati, M B Perkasa, N Syakir, A Aprilia, L Safriani, T Saragi, null Risdiana, S Hidayat, A Bahtiar, R Siregar, R R Sihombing, A Nugroho   +11 more
openaire   +1 more source

Realising the potential of graphene-based materials for biosurfaces – A future perspective

Biosurface and Biotribology, 2015
Recently, the promising mechanical, tribological and biomedical properties of graphene and its derivatives (mainly graphene oxide and reduced graphene oxide) and graphene-reinforced nanocomposites have attracted great attention of tribologists ...
H.S. Dong, S.J. Qi
doaj   +1 more source

Engineering graphene by oxidation: a first principles study

, 2009
Graphene epoxide, with oxygen atoms lining up on pristine graphene sheets, is investigated theoretically in this Letter. Two distinct phases: metastable clamped and unzipped structures are unveiled in consistence with experiments. In the stable (unzipped)
Kun Xue, Pandey D, Zhiping Xu
core   +1 more source

Large-signal model of the Metal-Insulator-Graphene diode targeting RF applications

, 2019
We present a circuit-design compatible large-signal compact model of metal-insulator-graphene (MIG) diodes for describing its dynamic response for the first time.
Hamed, Ahmed, Jiménez, David, Negra, Renato, Neumaier, Daniel, Pasadas, Francisco, Saeed, Mohamed, Wang, Zhenxing   +6 more
core   +1 more source

Graphene: Status and Prospects [PDF]

, 2009
Graphene is a wonder material with many superlatives to its name. It is the thinnest material in the universe and the strongest ever measured. Its charge carriers exhibit giant intrinsic mobility, have the smallest effective mass (it is zero) and can ...
A. K. Geim, Balandin, Booth, Bunch, Bunch, Dikin, Elias, Emtsev, Geim, Han, Hernandez, Kim, Kim, Lee, Li, Lin, Meyer, Orlita, Ponomarenko, Reina, Robinson, Schedin, Shytov, Stander, Standley, Wang, Zhou   +26 more
core   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Coal to graphene-based materials: Evaluating coal as a potential feedstock to pave way for large scale production of graphene and related materials, a review

Next Materials
Of recent, coal and other abundant carbon-rich materials are emerging as potential feedstocks and precursors in the production of graphene-based materials such as pristine graphene and graphene oxide and reduced graphene oxide.
Boitshepho Ivy Marakalala, Victor K. Manisa, Tumeletso Lekgoba, Freeman Ntuli, Vepika Kandjou   +4 more
doaj   +1 more source