نتایج جستجو برای: bn nanosheet

تعداد نتایج: 9553  

2012
Lin Hu Hao Zhong Xinrui Zheng Yimin Huang Ping Zhang Qianwang Chen

Herein, we report the feasibility to enhance the capacity and stability of CoMn(2)O(4) anode materials by fabricating hierarchical mesoporous structure. The open space between neighboring nanosheets allows for easy diffusion of the electrolyte. The hierarchical microspheres assembled with nanosheets can ensure that every nanosheet participates in the electrochemical reaction, because every nano...

2018
Jinghuang Lin Henan Jia Haoyan Liang Shulin Chen Yifei Cai Junlei Qi Chaoqun Qu Jian Cao Weidong Fei Jicai Feng

NiO is a promising electrode material for supercapacitors. Herein, the novel vertically standing nanosized NiO encapsulated in graphene layers (G@NiO) are rationally designed and synthesized as nanosheet arrays. This unique vertical standing structure of G@NiO nanosheet arrays can enlarge the accessible surface area with electrolytes, and has the benefits of short ion diffusion path and good ch...

2017
Jinzhao Huang Ke Fu Xiaolong Deng Nannan Yao Mingzhi Wei

TiO2 NSAs/graphene/Cu2O was fabricated on the carbon fiber to use as photocastalysts by coating Cu2O on the graphene (G) decorated TiO2 nanosheet arrays (NSAs). The research focus on constructing the composite structure and investigating the reason to enhance the photocatalytic ability. The morphological, structural, and photocatalytic properties of the as-synthesized products were characterize...

2013
Liang-Xin Ding An-Liang Wang Yan-Nan Ou Qi Li Rui Guo Wen-Xia Zhao Ye-Xiang Tong Gao-Ren Li

Hierarchical alloy nanosheet dendrites (ANSDs) are highly favorable for superior catalytic performance and efficient utilization of catalyst because of the special characteristics of alloys, nanosheets, and dendritic nanostructures. In this paper, we demonstrate for the first time a facile and efficient electrodeposition approach for the controllable synthesis of Pd-Sn ANSDs with high surface a...

Journal: :Physical chemistry chemical physics : PCCP 2013
Bjørn-Tore Lønstad Bleken Lorenzo Mino Filippo Giordanino Pablo Beato Stian Svelle Karl Petter Lillerud Silvia Bordiga

Herein we report FTIR in situ adsorption of molecular hydrogen, carbon monoxide, water, methanol, pyridine and 2,4,6-trimethylpyridine (collidine) on nanosheet H-ZSM-5 which was recently studied in the methanol to hydrocarbons (MTH) reaction. The nature of the hydroxyl groups and surface species are described in detail. The IR spectrum of nanosheet H-ZSM-5 is dominated by silanols, which satura...

2012
Guangcheng Yang Hailong Hu Yong Zhou Yingjie Hu Hui Huang Fude Nie Weimei Shi

Energetic material is a reactive substance that contains a great amount of potential energy, which is extremely sensitive to external stimuli like force. In this work, one-molecule-thick single-crystalline nanosheets of energetic material were synthesized. Very small force applied on the nanosheet proves to lead to the rotation of the tilted nitro groups, and subsequently change of current of t...

2015
Prashant Kumar Kumar Varoon Agrawal Michael Tsapatsis K. Andre Mkhoyan

Some two-dimensional (2D) exfoliated zeolites are single- or near single-unit cell thick silicates that can function as molecular sieves. Although they have already found uses as catalysts, adsorbents and membranes precise determination of their thickness and wrinkling is critical as these properties influence their functionality. Here we demonstrate a method to accurately determine the thickne...

Abdolhadi Farrokhnia, E.I. Garcı´a-Lo´pez M. Zargar Shoushtari Zahra Abbasi,

Novel ternary nanocomposite photocatalysts based on g-C3N4/Fe3O4/TiO2 nanosheet were synthesized using simple solid combustion, hydrothermal and wetness impregnation methods. The g-C3N4 nanosheet (2D)/ Fe3O4/ TiO2 nanosheet (2D) triad-interface nanocomposite arranged in the form of Fe3O4 nanoparticle was sandwiched and well dispersed on the surface between g-C3N4 and TiO2 nanosheets. The synthe...

Journal: :Cancer research 1987
D N Carney F Cuttitta T W Moody J D Minna

Human small cell lung cancers (SCLC) produce and secrete the regulatory peptide bombesin (BN) or its mammalian counterpart gastrin-releasing peptide (GRP). In addition, several SCLC tumor lines have been shown to express high affinity receptors for BN/GRP. On the basis of these findings, we investigated the effect of exogenously added BN and GRP on the soft agarose colony growth of a panel of h...

2007
Robert Tijdeman Pingzhi Yuan

We give criteria for the rationality of Cantor series ∑ ∞ n=1 bn a1···an and series ∑ ∞ n=1 bn an where a1, a2, · · · and b1, b2, · · · are integers such that an > 0 and the series converge. We precisely say when ∑ ∞ n=1 bn a1···an is rational (i) if {an} ∞ n=1 is a monotonic sequence of integers and bn+1 − bn = o(an+1) or lim supn→∞( bn+1 an+1 − bn an ) ≤ 0, and (ii) if bn+1 an+1−1 ≤ bn an−1 f...

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