نتایج جستجو برای: 2d nanosheets

تعداد نتایج: 87601  

Journal: :Advanced electronic materials 2023

2D ferroelectrics provide great promise for future electronics owing to their unique properties at limit. Although simple perovskite oxides (such as BaTiO3 and PbTiO3) are an important target ferroelectrics, controlled synthesis of nanosheets still remains a challenge. Here, this issue is addressed by using new chemical protocol; unilamellar Ti0.87O2 can serve templates, guiding the solvotherma...

Journal: :Nanoscale 2014
Takeshi Fujita Yoshikazu Ito Yongwen Tan Hisato Yamaguchi Daisuke Hojo Akihiko Hirata Damien Voiry Manish Chhowalla Mingwei Chen

The production of two-dimensional rhenium disulfide (ReS2) nanosheets by exfoliation using lithium intercalation is demonstrated. The vibrational and photoluminescence properties of the exfoliated nanosheets are investigated, and the local atomic structure is studied by scanning and transmission electron microscopy. The catalytic activity of the nanosheets in a hydrogen evolution reaction (HER)...

2014
Si Qin Weiwei Lei Dan Liu Ying Chen

Molybdenum disulfide (MoS2) nanosheets have unique physical and chemical properties, which make it a perfect candidate for next generation electronic and energy storage applications. Herein, we show the successful synthesis of nitrogen-doped MoS2 nanosheets by a simple, effective and large-scale approach. MoS2 nanosheets synthesised by this method show a porous structure formed by curled and ov...

Journal: :Advanced Functional Materials 2021

Critical catalysis studies often lack elucidation of the mechanistic role defect equilibria in solid solubility and charge compensation. This approach is applied to interpret physicochemical properties catalytic performance a free-standing 2D–3D CeO2?x scaffold, which comprised holey 2D nanosheets, its heterojunctions with MoO3?x RuO2. The band gap alignment structural defects are engineered us...

Journal: :Nanoscale 2009
Haibing Li Yuling Li

Highly luminescent and water-soluble cobalt(ii)-bis(8-hydroxyquinoline) (CoQ(2)) nanosheets have been successfully synthesized via a simple, rapid sonochemical method. The water-soluble CoQ(2) nanosheets were characterized by luminescence spectroscopy, UV-vis spectroscopy, FT-IR spectroscopy and transmission electron microscopy (TEM). The CoQ(2) nanosheets allow highly sensitive and selective d...

2017
Anouck M. Champsaur Jaeeun Yu Xavier Roy Daniel W. Paley Michael L. Steigerwald Colin Nuckolls Christopher M. Bejger

We describe a new approach to synthesize two-dimensional (2D) nanosheets from the bottom-up. We functionalize redox-active superatoms with groups that can direct their assembly into multidimensional solids. We synthesized Co6Se8[PEt2(4-C6H4COOH)]6 and found that it forms a crystalline assembly. The solid-state structure is a three-dimensional (3D) network in which the carboxylic acids form inte...

Journal: :Nanoscale 2014
Konstantinos Kouroupis-Agalou Andrea Liscio Emanuele Treossi Luca Ortolani Vittorio Morandi Nicola Maria Pugno Vincenzo Palermo

The main advantage for applications of graphene and related 2D materials is that they can be produced on large scales by liquid phase exfoliation. The exfoliation process shall be considered as a particular fragmentation process, where the 2D character of the exfoliated objects will influence significantly fragmentation dynamics as compared to standard materials. Here, we used automatized image...

Journal: :Advanced Materials Interfaces 2023

Two different shaped Ni-based metal–organic framework (MOF) nanosheets are prepared from hexagonal nickel hydroxide monolayer under the variable reaction conditions. The MOF with similar lateral size to Ni(OH)2 nanosheet is obtained on flat Si substrate but thickness increased 1 2 nm. Another rectangular when a carried out in solution which dispersed. difference shape of Ni-MOF related degree d...

Journal: :Chemical communications 2013
Yeteng Zhong Yijun Yang Ying Ma Jiannian Yao

By using 1,5-pentanediol as a capping and structure directing agent, ultrathin Eu2O3 nanosheets (<1 nm) have been synthesized and assembled into a layered structure. The lateral dimensions of the nanosheets can be tuned by simply controlling the reaction time. These layered structures exhibit a strong quantum size effect due to the extremely small thickness of the assembled nanosheets.

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