نتایج جستجو برای: nanosheets

تعداد نتایج: 5216  

Journal: :Chemical communications 2015
Jaeheon Kim Joonsoo Chun Ryong Ryoo

The external surfaces of the surfactant-directed, 2.5 nm MFI zeolite nanosheets were grafted with Ti using titanium(IV) butoxide. The Ti/MFI nanosheets exhibited a remarkable catalytic performance for epoxidation of bulky olefins using H2O2 as an oxidant, in comparison to the mesoporous silicas with amorphous frameworks.

Journal: :Physical chemistry chemical physics : PCCP 2015
Teruyuki Nakato Takako Fujita Emiko Mouri

Photocatalytic hydrogen evolution over semiconducting niobate nanosheets is synergistically improved by coexisting photochemically inactive additives of clay particles and sodium chloride without precise nanoscopic structural regulation. In addition, the Pt cocatalyst loaded on the clay particles works better than that photodeposited on the photocatalytic nanosheets.

2014
Liang Yu Yatao Zhang Bing Zhang Jindun Liu

A sandwich-like antibacterial reagent (Ag/HNTs/rGO) was constructed through the direct growth of silver nanoparticles on the surface graphene-based HNTs nanosheets. Herein, various nanomaterials were combined by adhesion effect of DOPA after self-polymerization. Ag/HNTs/rGO possess enhanced antibacterial ability against E. coli and S. aureus compared with individual silver nanoparticles, rGO na...

Journal: :Chemical communications 2015
Ramkrishna Sahoo Anindita Roy Soumen Dutta Chaiti Ray Teresa Aditya Anjali Pal Tarasankar Pal

Ultrathin 2D Co3O4 and Co3V2O8 nanosheets have been produced from our modified hydrothermal technique (MHT). Both the materials have been proved to be extraordinary electrode materials for pseudocapacitors. The neat nanosheets of Co3O4 and Co3V2O8 exhibit a record specific capacitance value of 1256 F g(-1) and 4194 F g(-1) at 1 A g(-1) current density, respectively.

Journal: :Chemical communications 2011
Yu-Kuei Hsu Ying-Chu Chen Yan-Gu Lin Li-Chyong Chen Kuei-Hsien Chen

The reversible phase transformation is reported from hexagonal to monoclinic structure responding to the intercalation/deintercalation of Na(+) between MnO(2) nanosheets upon potential cycling in aqueous electrolyte via an in situ Raman technique. This structural evolution will influence the Na(+) diffusion process in MnO(2) nanosheets and cause phase retention during the self-discharge process.

Journal: :Chemical communications 2015
Ferdinando Costantino Riccardo Vivani Maria Bastianini Luca Ortolani Oriana Piermatti Morena Nocchetti Luigi Vaccaro

Thin nanosheets from a layered zirconium phosphate-carboxyphosphonate is reported here. Small Pd nanoparticles have been supported on these nanosheets by an efficient method. The resulting Pd-catalyst was fully characterized and tested in the Suzuki-Miyaura coupling. The catalytic system proved its efficiency as it was reused for several cycles and showed low Pd leaching.

Journal: :Chemical communications 2011
Shujiang Ding Jun Song Chen Deyan Luan Freddy Yin Chiang Boey Srinivasan Madhavi Xiong Wen David Lou

We have designed a unique hybrid structure by directly growing ultrathin anatase TiO(2) nanosheets onto graphene support for fast lithium storage. With exposed (001) high-energy facets, these TiO(2) nanosheets serve as ideal hosts for fast and efficient lithium storage. On the other hand, the graphene support serves as a highly conductive substrate that is beneficial to the high-rate performance.

Journal: :Chemical communications 2011
Jun Song Chen Jian Liu Shi Zhang Qiao Rong Xu Xiong Wen David Lou

We demonstrate an unusual formation of large 2D nanosheets from nanomosaic building blocks of anatase TiO(2) nanosheets with exposed (001) facets. It is proposed that large PVP molecules adsorbed on the (001) facets serve as the linker that brings building blocks together, at the same time prevents them from stacking along the c-axis.

Journal: :Physical chemistry chemical physics : PCCP 2016
Juan-Ye Wang Hong-Dan Peng Jia-Mei Yang Jing-Hui Yan Ge-Bo Pan

Large-size single crystalline nanosheets of 9,10-bis(phenylethynyl)-anthracene were prepared by a facile solution process and were fully characterized. The prototype photodetector was then fabricated on the basis of a single nanosheet and exhibited superior performance with the largest photoresponse ratio up to ca. 10(5). Moreover, the nanosheets show obvious light emission anisotropy.

2017
Jingfang Zhang Yuchen Hu Dali Liu Yu Yu Bin Zhang

Amorphous-like Ni-Fe-S ultrathin nanosheets by oxygen incorporation and electrochemical tuning show excellent OER activity at high current densities. Such excellent performance could be attributed to the unique 3D porous configuration composed of amorphous-like ultrathin nanosheets with much more active sites and improved conductivity, as well as the proper electronic structure benefiting from ...

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