نتایج جستجو برای: nanosheet

تعداد نتایج: 1423  

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2021

A hierarchical nanoarray comprising an inner crystalline CoP nanorod and outer amorphous CoB nanosheet exhibits excellent performance toward hydrogen evolution.

Journal: :Chemical communications 2014
Shoupei Wang Jianan Zhang Pei Shang Yuanyuan Li Zhimin Chen Qun Xu

N-doped carbon spheres with hierarchical micropore-nanosheet networks (HPSCSs) were facilely fabricated by a one-step carbonization and activation process of N containing polymer spheres by KOH. With the synergy effect of the multiple structures, HPSCSs exhibit a very high specific capacitance of 407.9 F g(-1) at 1 mV s(-1) (1.2 times higher than that of porous carbon spheres) and a robust cycl...

Journal: :Applied Physics Letters 2022

A thin, narrow-bandgap semiconductor Bi 2 O Te nanosheet is obtained via mechanical exfoliation, and a Hall-bar device fabricated from it on heavily doped Si/SiO substrate studied at low temperatures. Gate transfer characteristic measurements show that the transport carriers in are of n-type. The carrier density, mobility, mean free path determined by Hall resistance longitudinal device, found ...

Journal: :Nanoscale 2010
Joanna Górka Mietek Jaroniec Wojciech L Suchanek

Novel α-alumina crystalline nanosheets are used for the preparation of alumina-carbon composites, in which the latter component is phenolic resin-based ordered mesoporous carbon. A unique feature of these composites is perpendicular orientation of ordered mesopores of the carbon to the (001) facets of nonporous α-alumina nanosheets accompanied by significant enlargement of these mesopores in co...

2004
Nobuyuki Sakai Yasuo Ebina Kazunori Takada Takayoshi Sasaki

We recently synthesized a new modification of nanosized oxides such as titania [1] and manganese oxide [2] by delaminating precursor layered crystals into their elementary layers. The obtained materials have been named nanosheets on the basis of their two-dimensional morphology, as depicted in Fig. 1. The crystallite has an extremely small thickness less than 1 nm and a lateral size ranging fro...

Journal: :Materials advances 2022

A holistic review detailing the recent advances and challenges of nanosheet-derived photocatalysts for removal pollutants using sunlight.

Journal: :Journal of the American Chemical Society 2008
Shintaro Ida Chikako Ogata Miharu Eguchi W Justin Youngblood Thomas E Mallouk Yasumichi Matsumoto

Luminescent perovskite nanosheets were prepared by exfoliation of single- or double-layered perovskite oxides, K2Ln2Ti3O10, KLnNb2O7, and RbLnTa2O7 (Ln: lanthanide ion). The thickness of the individual nanosheets corresponded to those of the perovskite block in the parent layered compounds. Intense red and green emissions were observed in aqueous solutions with Gd1.4Eu0.6Ti3O10- and La0.7Tb0.3T...

Journal: :Nano letters 2014
Jiangxuan Song Zhaoxin Yu Mikhail L Gordin Shi Hu Ran Yi Duihai Tang Timothy Walter Michael Regula Daiwon Choi Xiaolin Li Ayyakkannu Manivannan Donghai Wang

Room temperature sodium-ion batteries are of great interest for high-energy-density energy storage systems because of low-cost and natural abundance of sodium. Here, we report a novel phosphorus/graphene nanosheet hybrid as a high performance anode for sodium-ion batteries through facile ball milling of red phosphorus and graphene stacks. The graphene stacks are mechanically exfoliated to nanos...

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