نتایج جستجو برای: 2d nanosheet

تعداد نتایج: 84310  

Journal: :Chemical communications 2012
Dimitri D Vaughn Olivia D Hentz Shuru Chen Donghai Wang Raymond E Schaak

SnS nanoflowers containing hierarchically organized nanosheet subunits were synthesized using a simple solution route, and they function as lithium ion battery anodes that maintain high capacities and coulombic efficiencies over 30 cycles.

Journal: :Chemical communications 2011
Jin-Yong Hong Keun-Young Shin Oh Seok Kwon Haeyoung Kang Jyongsik Jang

A novel approach to synthesize graphene nanosheet is explored on the basis of the layer-by-layer (LbL) self-assembly of polyallylamine (PAA) and poly(styrene-sulfonate) (PSS) multi-layer with a metallic dopant.

Journal: :Nanoscale 2014
Haixin Chang Jianli Kang Luyang Chen Junqiang Wang Kazuyo Ohmura Na Chen Takeshi Fujita Hongkai Wu Mingwei Chen

A novel and facile strategy is developed to fabricate highly nitrogen-doped graphene (N-graphene) based layered, quasi-two-dimensional nanohybrids with ultrathin nanosheet nanocrystals using a low-temperature, solution processing method for high-performance supercapacitor electrodes. High N doping can be achieved together with one of the lowest oxygen content in chemically reduced graphene and ...

Journal: :Nanoscale 2015
Hailong Yu Xianbo Yu Yujin Chen Shen Zhang Peng Gao Chunyan Li

Nanostructured MoS2 is very promising as an electrocatalyst for hydrogen evolution due to a greater number of active edge sites. However, a very large resistance between basal planes decreases the overall efficiency of hydrogen evolution, and greatly limits its application in industry. Herein we develop a facile strategy to synergistically increase the number of active edge sites and the conduc...

Journal: :Nanoscale 2013
Sung-Wook Min Hee Sung Lee Hyoung Joon Choi Min Kyu Park Taewook Nam Hyungjun Kim Sunmin Ryu Seongil Im

We report on the nanosheet-thickness effects on the performance of top-gate MoS(2) field-effect transistors (FETs), which is directly related to the MoS(2) dielectric constant. Our top-gate nanosheet FETs with 40 nm thin Al(2)O(3) displayed at least an order of magnitude higher mobility than those of bottom-gate nanosheet FETs with 285 nm thick SiO(2), benefiting from the dielectric screening b...

Journal: :Nanoscale 2013
Bing Yu Xuesong Jiang Jie Yin

We here demonstrated a novel square silica/titania mesoporous nanosheet which was prepared with hyperbranched poly(ether amine) nanosheets (hPEA-NSs) as a template. TEM and SEM images reveal that the obtained nanosheets possess a large aspect ratio with the average edge length of 1-2 μm and thickness of ~40 nm, respectively. Various metal nanoparticles such as gold, silver, and platinum can be ...

2018
Chunyan Zhang Xiaoyi Cai Yao Qian Haifeng Jiang Lijun Zhou Baosheng Li Linfei Lai Zexiang Shen Wei Huang

A lightweight, flexible, and highly efficient energy management strategy is highly desirable for flexible electronic devices to meet a rapidly growing demand. Herein, Ni-Co-S nanosheet array is successfully deposited on graphene foam (Ni-Co-S/GF) by a one-step electrochemical method. The Ni-Co-S/GF composed of Ni-Co-S nanosheet array which is vertically aligned to GF and provides a large interf...

Journal: :Chemical communications 2015
Dinggeng He Xiaoxiao Yang Xiaoxiao He Kemin Wang Xue Yang Xing He Zhen Zou

A sensitive turn-on fluorescent sensor based on single-layer MnO2 nanosheet-quenched fluorescent carbon quantum dots has been developed for rapid and selective sensing of glutathione in aqueous solutions, as well as in living cells.

   The current study designed and simulated graphene nanosensors for detection of GLY120 tumor-associated carbohydrate antigens. Graphene is a two-dimensional nanosheet that offers a high surface-to-volume ratio and high mobility which increases its sensitivity as a graphene sensor over that of other nanoparticles. The current study simulated graphene sensors with and without GLY12...

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