Progress of Graphene-Based Hydrogel

2016 ◽  
Vol 852 ◽  
pp. 714-719
Author(s):  
Yu Xiang ◽  
Li Bin Liu ◽  
Zhao Dang ◽  
Ting Li
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Reduced Graphene ◽  
Physical And Chemical ◽  
Significant Attention ◽  
And Chemical Properties

Graphene, a typical two-dimensional planar monolayer of sp2carbon atoms, has attracted significant attention due to its outstanding physical and chemical properties. Nowadays, many graphene-based composites have been synthesized. Among them, graphene hydrogels (including graphene oxide hydrogel and reduced graphene oxide hydrogel) as a kind of graphene-based composites have a wide application prospect. In this paper, the progresses of graphene-based hydrogels are reviewed, and the prospects for the development of graphene-based hydrogels are also discussed.

scholarly journals Liquid phase exfoliation of antimonene: systematic optimization, characterization and electrocatalytic properties

2019 ◽  
Vol 7 (39) ◽  
pp. 22475-22486 ◽  
Author(s):  
Carlos Gibaja ◽  
Mhamed Assebban ◽  
Iñigo Torres ◽  
Michael Fickert ◽  
Roger Sanchis-Gual ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Electrocatalytic Properties ◽  
Systematic Optimization ◽  
Group 15 ◽  
Liquid Phase Exfoliation ◽  
Physical And Chemical ◽  
And Chemical Properties

Antimonene, a novel group 15 two-dimensional material, is attracting great attention due to its outstanding physical and chemical properties.

Tailoring lanthanide doping in perovskite CaTiO3 for luminescence applications

2017 ◽  
Vol 19 (24) ◽  
pp. 16189-16197 ◽  
Author(s):  
Pei Yang ◽  
Bo Tai ◽  
Weikang Wu ◽  
Jian-Min Zhang ◽  
Feng Wang ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Perovskite Oxide ◽  
Promising Material ◽  
Oxide Materials ◽  
Physical And Chemical Properties ◽  
Lanthanide Doping ◽  
Physical And Chemical ◽  
Significant Attention ◽  
And Chemical Properties

Perovskite oxide materials have been attracting significant attention due to their rich physical and chemical properties. Lanthanide-doped perovskite CaTiO3 can be a promising material for biological luminescence applications.

scholarly journals A Blueprint for the Synthesis and Characterization of Thiolated Graphene

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 45
Author(s):  
Maxim K. Rabchinskii ◽  
Victor V. Sysoev ◽  
Sergei A. Ryzhkov ◽  
Ilya A. Eliseyev ◽  
Dina Yu. Stolyarova ◽  
...  
Keyword(s):  
Smart Materials ◽  
Chemical Properties ◽  
Research Community ◽  
Physical And Chemical Properties ◽  
Facile Synthesis ◽  
The Core ◽  
Physical And Chemical ◽  
Significant Attention ◽  
And Chemical Properties

Graphene derivatization to either engineer its physical and chemical properties or overcome the problem of the facile synthesis of nanographenes is a subject of significant attention in the nanomaterials research community. In this paper, we propose a facile and scalable method for the synthesis of thiolated graphene via a two-step liquid-phase treatment of graphene oxide (GO). Employing the core-level methods, the introduction of up to 5.1 at.% of thiols is indicated with the simultaneous rise of the C/O ratio to 16.8. The crumpling of the graphene layer upon thiolation without its perforation is pointed out by microscopic and Raman studies. The conductance of thiolated graphene is revealed to be driven by the Mott hopping mechanism with the sheet resistance values of 2.15 kΩ/sq and dependable on the environment. The preliminary results on the chemiresistive effect of these films upon exposure to ethanol vapors in the mix with dry and humid air are shown. Finally, the work function value and valence band structure of thiolated graphene are analyzed. Taken together, the developed method and findings of the morphology and physics of the thiolated graphene guide the further application of this derivative in energy storage, sensing devices, and smart materials.

scholarly journals Graphene Oxide and Polyethyleneimine Cooperative Construct Ionic Imprinted Cellulose Nanocrystals Aerogel for Selective Adsorption of Dy(III)

2021 ◽  
Author(s):  
Xudong Zheng ◽  
Wen Sun ◽  
Ang Li ◽  
Bin Wang ◽  
Rong Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Rare Earth ◽  
Cellulose Nanocrystals ◽  
Selective Adsorption ◽  
Chemical Properties ◽  
Regeneration Ability ◽  
Maximum Adsorption Capacity ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract Because of dysprosium's unique physical and chemical properties and limited supply, the price of rare earth dysprosium has been high in recent years. Therefore, the study of the method of high efficiency selective separation of dysprosium has the double value of scientific research and practical economy. In this paper, we used periodic cellulose nanocrystals as the basic structure, polyethylenimine and graphene oxide were introduced, combined with imprinting technology, to construct porous imprinted aerogel and use it for selective adsorption of Dy(III). The physical and chemical properties were characterized by SEM, TEM, FT-IR and TGA. It was proved that both polyethylenimine and graphene oxide were crosslinked effectively with cellulose nanocrystals. Adsorption experiments showed that the composite imprinted aerogel could selectively adsorb dysprosium effectively, and the maximum adsorption capacity for Dy(III) was 36.495 mg g− 1. The reproducibility experiment showed that aerogel had good regeneration ability. In conclusion, cellulose nanocrystals aerogel, which is environmentally friendly, efficient and repeatable, is expected to provide a new direction for the recovery of rare earth elements.

scholarly journals Two-Dimensional Semiconductor Heterojunctions for Optoelectronics and Electronics

2021 ◽  
Vol 9 ◽  
Author(s):  
Qian Wang ◽  
Lin Zhang ◽  
Xuejuan Liu ◽  
Sha Li
Keyword(s):  
Electric Fields ◽  
Chemical Properties ◽  
Band Alignment ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Layered Semiconductors ◽  
Future Developments ◽  
Device Applications ◽  
Physical And Chemical ◽  
And Chemical Properties

Two-dimensional (2D) layered semiconductors are current research hotspots on account of their wide variety of applications in electronics and optoelectronics due to their particular ultrathin nature. In this review, the band alignment engineering in heterojunctions composed of 2D van der Waals (vdW) layered semiconductors and their device applications in optoelectronics are provided. Various approaches that induced adjustability of vdW heterojunctions are summarized, mainly including composition and thickness modulations, strain, and electric fields. Furthermore, their perspectives on future developments in optoelectronics and electronics devices based on the newly unique physical and chemical properties are outlined.

scholarly journals Controllable reduction of graphene oxide by electron-beam irradiation

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3597-3604 ◽  
Author(s):  
Yu Yang ◽  
Liang Chen ◽  
De-Yuan Li ◽  
Ruo-Bing Yi ◽  
Jia-Wei Mo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electron Beam ◽  
Oxygen Content ◽  
Electron Beam Irradiation ◽  
Chemical Properties ◽  
Suspension Stability ◽  
Physical And Chemical Properties ◽  
Beam Irradiation ◽  
Physical And Chemical ◽  
And Chemical Properties

The oxygen content of graphene oxide (GO) is directly related to its physical and chemical properties, such as hydrophilicity, suspension stability, adsorption, and ion-sieving ability of GO membranes.

2D Boron Nanosheets Architectonics: Opening New Territories by Smart Functionalization

2022 ◽  
Author(s):  
Chao Han ◽  
Rui Han ◽  
Xin Zhang ◽  
Zhi Xu ◽  
Weijie Li ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Atomic Weight ◽  
Dimensional Structure ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Physical And Chemical ◽  
And Chemical Properties

Due to its low atomic weight, two-dimensional structure, and unique physical and chemical properties, borophene has attracted strong interests from researchers across different fields. Currently, the experimentally realized polymorphs of...

Design of 2D materials – MSi2CxN4-x (M = Cr, Mo, and W; x = 1 and 2) - with tunable electronic and magnetic properties

Nanoscale ◽  
2021 ◽  
Author(s):  
Bowen Li ◽  
Jiazhong Geng ◽  
Haoqiang Ai ◽  
youchao Kong ◽  
Haoyun Bai ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
2D Materials ◽  
Chemical Properties ◽  
First Principle ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Electronic And Magnetic Properties ◽  
The Past ◽  
Physical And Chemical ◽  
And Chemical Properties

Two-dimensional (2D) materials have attracted increasing interest in the past decades due to their unique physical and chemical properties for diverse applications. In this work, we present a first-principle design...

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