Nitrogen and silica co-doped graphene nanosheets for NO2 gas sensing

2013 ◽  
Vol 1 (20) ◽  
pp. 6130 ◽  
Author(s):  
Fang Niu ◽  
Jin-Mei Liu ◽  
Li-Ming Tao ◽  
Wei Wang ◽  
Wei-Guo Song
Keyword(s):  
Gas Sensing ◽  
Graphene Nanosheets ◽  
Doped Graphene ◽  
Co Doped

MoS2 nanosheets on B, N co-doped graphene nanosheets for active lithium storage

2018 ◽  
Vol 213 ◽  
pp. 162-165 ◽  
Author(s):  
Peng Ding ◽  
Yanfang Sun ◽  
Xiaoyan Li ◽  
Xiao Zhang ◽  
Jinxue Guo
Keyword(s):  
Graphene Nanosheets ◽  
Mos2 Nanosheets ◽  
Lithium Storage ◽  
Doped Graphene ◽  
Co Doped

Cobalt sulfide nanoparticles impregnated nitrogen and sulfur co-doped graphene as bifunctional catalyst for rechargeable Zn–air batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7280-7284 ◽  
Author(s):  
Dongsheng Geng ◽  
Ni-Ni Ding ◽  
T. S. Andy Hor ◽  
Sheau Wei Chien ◽  
Zhaolin Liu ◽  
...  
Keyword(s):  
Graphene Nanosheets ◽  
Bifunctional Catalyst ◽  
Cycling Stability ◽  
Cobalt Sulfide ◽  
Water Based ◽  
Doped Graphene ◽  
Good Cycling Stability ◽  
Co Doped

Cobalt sulfide nanoparticle impregnated nitrogen and sulfur co-doped graphene nanosheets synthesized in water-based media equip Zn–air batteries with good cycling stability.

Crumpled B, F Co-doped graphene nanosheets for the fabrication of all-solid-state flexible supercapacitors

2021 ◽  
Author(s):  
Murugesan Sandhiya ◽  
Uma Kumar Kailash Veerappan ◽  
Marappan Sathish
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Graphene Nanosheets ◽  
Flexible Supercapacitors ◽  
Doped Graphene ◽  
Co Doped

A flexible all-solid-state supercapacitor was fabricated using B, F co-doped graphene with an excellent energy density of 24 W h kg−1.

scholarly journals Investigation of the Effect of 3d TM-TM Atom Co-Doped in Graphene Nanosheet: DFT Based Calculations

2021 ◽  
pp. 122-132
Keyword(s):  
Magnetic Properties ◽  
Density Functional ◽  
Graphene Nanosheets ◽  
Single Point ◽  
Magnetic Behavior ◽  
Pristine Graphene ◽  
Graphene Nanosheet ◽  
Metallic Behavior ◽  
Doped Graphene ◽  
Co Doped

Graphene, an interesting 2D system has a rare electronic structure of two inverted Dirac cones touching at a single point, with great electron mobility and promising microelectronics applications. In the present article, a theoretical investigation has been performed on the structural, electronic, and magnetic properties of pristine graphene nanosheet and also the effect of 3d transition metal (TM) co-doped in graphene nanosheet within the density functional theory framework. 3d TM is categorized into two groups: Cr- group (Cr-Cr, Cr-Mn, and Cr-Fe) and Ni-group (Ni-Cr, Ni-Ti, Ni-Mn). After co-doping TM atoms on graphene, it still holds its planar shape which refers to the stability of these co-doped graphene nanosheets. This is also confirmed by the increasing bond length of carbon and TM atoms on graphene nanosheets. Highest zero-point energies have been found of -12049.24eV and -10936.87eV respectively for Cr-Cr and Ni-Cr co-doped graphene nanosheet. According to Mulliken's charge and electron density differences, all the TM atoms can act as electron donors while the graphene nanosheet is electron acceptor. All the TMs co-doped graphene nanosheet show metallic behavior in terms of band structures and DOS plots except Ti-Ni which has shown a little band gap. In terms of electronic properties, Cr-Cr and Ni-Cr co-doped graphene nanosheets are found most stable among the other studied systems and they can exhibit magnetic behavior as there is a variation in their up and down spin as shown in spin polarized DOS. That’s why they are beneficial to the application of various magnetic devices as well as sectors. Besides Cr-group co-doped graphene nanosheet can exhibit better magnetic properties than Ni-group.

Si-doped graphene nanosheets for NOx gas sensing

2021 ◽  
Vol 328 ◽  
pp. 129005
Author(s):  
Fang Niu ◽  
Zhen-Wu Shao ◽  
Hong Gao ◽  
Li-Ming Tao ◽  
Yong Ding
Keyword(s):  
Gas Sensing ◽  
Graphene Nanosheets ◽  
Doped Graphene ◽  
Si Doped

A DFT Study of CO and NO Adsorptions on AlN-, AlP-, and ZnO-doped Graphene Nanosheets

2016 ◽  
Vol 230 (2) ◽  
Author(s):  
Niwat Promthong ◽  
Nadtanet Nunthaboot ◽  
Wanno Banchob
Keyword(s):  
Density Functional ◽  
Gas Adsorption ◽  
Graphene Nanosheets ◽  
Nitrogen Monoxide ◽  
Density Functional Theory Calculations ◽  
Pristine Graphene ◽  
Functional Theory ◽  
Co Doping ◽  
Doped Graphene ◽  
Co Doped

AbstractDensity functional theory calculations were performed to investigate the adsorption abilities of carbon monoxide (CO) and nitrogen monoxide (NO) gas molecules onto pristine graphene nanosheet (GNS), and AlN-, AlP-, and ZnO-doped GNSs. The co-doping of AlN, AlP, and ZnO onto GNS can improve the CO and NO adsorption abilities of GNS. The gas adsorption abilities on the pristine and co-doped GNSs were determined to be, in decreasing order: ZnO-GNS ∼ AlP-GNS > AlN-GNS > pristine GNSs and AlP-GNS > AlN-GNS > ZnO-GNS > pristine GNSs for the adsorptions of CO and NO, respectively. These newly developed co-doped GNSs could be candidates for CO and NO gas storages. The adsorption geometries, adsorption energies, density of states, and charge transfers were also reported.

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