نتایج جستجو برای: nitrogen doped graphene

تعداد نتایج: 211138  

2014
Bo Quan Seung-Ho Yu Dong Young Chung Aihua Jin Ji Hyun Park Yung-Eun Sung Yuanzhe Piao

Solvothermal processes are considered efficient approaches for the gram-scale production of graphene. Further modification of graphene by chemical doping is an important approach to tailor its properties. In this work, we successfully synthesized sulfur-doped graphene by using a solvothermal method with dimethyl sulfoxide as a precursor, which is a common laboratory reagent. Nitrogen-doped grap...

We performed a density functional theory investigation on the structural and electronic properties of pristine and nitrogen-doped TiO2/Graphene oxide nanocomposites as the adsorbents for the removal of toxic NO molecules in the environment. We presented the most stable adsorption configurations and examined the interaction of NO molecule with these doped and undoped nanocomposites. It turns out...

Journal: :Nanoscale 2016
H-J Qiu L Y Chen Y Ito J L Kang X W Guo P Liu H Kashani A Hirata T Fujita M W Chen

Graphene with a large specific surface area and high conductivity has a large specific capacitance. However, its volumetric capacitance is usually very low because the restacking of 2D graphene sheets leads to the loss of the large ion-accessible surface area. Here we report squeezable bicontinuous nanoporous nitrogen-doped graphene, which is extremely flexible and can tolerate large volume con...

2016
Zunxian Yang Kun Qian Jun Lv Wenhuan Yan Jiahui Liu Jingwei Ai Yuxiang Zhang Tailiang Guo Xiongtu Zhou Sheng Xu Zaiping Guo

Particular N, S co-doped graphene/Fe3O4 hybrids have been successfully synthesized by the combination of a simple hydrothermal process and a subsequent carbonization heat treatment. The nanostructures exhibit a unique composite architecture, with uniformly dispersed Fe3O4 nanoparticles and N, S co-doped graphene encapsulant. The particular porous characteristics with many meso/micro holes/pores...

Journal: :Physical chemistry chemical physics : PCCP 2012
Z M Ao A D Hernández-Nieves F M Peeters S Li

Nitrogen-doped graphene was recently synthesized and was reported to be a catalyst for hydrogen dissociative adsorption under a perpendicular applied electric field (F). In this work, the diffusion of H atoms on N-doped graphene, in the presence and absence of an applied perpendicular electric field, is studied using density functional theory. We demonstrate that the applied field can significa...

We performed a density functional theory investigation on the structural and electronic properties of pristine and nitrogen-doped TiO2/Graphene oxide nanocomposites as the adsorbents for the removal of toxic NO molecules in the environment. We presented the most stable adsorption configurations and examined the interaction of NO molecule with these doped and undoped nanocomposites. It turns out...

Journal: :Chemical communications 2014
Yuan-Qi Le Jia Gu Wei Quan Tian

The catalytic profile and function of each component of a molybdenum-graphene based catalyst (Mo/N-doped graphene) for nitrogen fixation, which combines the merits of these two components, is evaluated computationally. The Mo/N part acts as an active centre for N2 bond breaking and the graphene part works as an electron transmitter and electron reservoir.

Journal: :ACS nano 2014
Yoshikazu Ito Christos Christodoulou Marco Vittorio Nardi Norbert Koch Hermann Sachdev Klaus Müllen

Thermally induced chemical vapor deposition (CVD) was used to study the formation of nitrogen-doped graphene and carbon films on copper from aliphatic nitrogen-containing precursors consisting of C1- and C2-units and (hetero)aromatic nitrogen-containing ring systems. The structure and quality of the resulting films were correlated to the influence of the functional groups of the precursor molec...

2015
Da-Young Yeom Woojin Jeon Nguyen Dien Kha Tu So Young Yeo Sang-Soo Lee Bong June Sung Hyejung Chang Jung Ah Lim Heesuk Kim

For the utilization of graphene in various energy storage and conversion applications, it must be synthesized in bulk with reliable and controllable electrical properties. Although nitrogen-doped graphene shows a high doping efficiency, its electrical properties can be easily affected by oxygen and water impurities from the environment. We here report that boron-doped graphene nanoplatelets wit...

Journal: :Chemical communications 2015
Ding Jiang Xiaojiao Du Qian Liu Nan Hao Jing Qian Liming Dai Hanping Mao Kun Wang

AgBr nanoparticles anchored nitrogen-doped graphene nanocomposites were designed to obtain enhanced electrochemiluminescence intensity and better stability, and further applied in electrochemiluminescence detection for the first time.

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