نتایج جستجو برای: mesoporous carbon

تعداد نتایج: 289987  

Journal: :Chemical communications 2005
Jyongsik Jang Byungkwon Lim Moonjung Choi

Mesoporous carbons with highly uniform and tunable mesopores were fabricated by one-step vapor deposition polymerization (VDP) using colloidal silica particles as templates and polyacrylonitrile (PAN) as a carbon precursor.

Journal: :Chemical communications 2011
Hao Jiang Ting Zhao Chunzhong Li Jan Ma

Functional mesoporous carbon nanotubes (MCNTs) and their integration in situ with Pt nanocrystals (Pt/MCNTs) have been designed and successfully developed via a facile route, which exhibited enhanced performances in energy storage and conversion applications.

Journal: :Chemical communications 2004
Geun Seok Chai Suk Bon Yoon Jung Ho Kim Jong-Sung Yu

Carbon capsules with hollow core and mesoporous shell (HCMS) structures were used as a support material for Pt(50)-Ru(50) catalyst, and the catalytic performance of the HCMS supported catalyst in the direct methanol fuel cell was described; the HCMS carbon supported catalysts exhibited much higher specific activity for methanol oxidation than the commonly used E-TEK catalyst by about 80%, provi...

Journal: :Chemical communications 2007
Yan Yan Fuqiang Zhang Yan Meng Bo Tu Dongyuan Zhao

Ordered mesoporous carbonaceous spheres with variable structures have been successfully prepared by using phenolic oligomers as a carbon precursor and amphiphilic triblock copolymers as a template via a one-step aerosol-assisted organic-organic self-assembly method.

Journal: :Chemical communications 2009
Zhonghao Jin Chao Yu Xingyi Wang Ying Wan Dao Li Guanzhong Lu

Pd/mesoporous silica-carbon nanocomposites with 3.2 nm Pd particles, prepared by a simple wetness impregnation method, have demonstrated high activity at 258 K for the hydrodechlorination of chlorophenols with a high selectivity.

Journal: :Chemical communications 2005
An-Hui Lu Wen-Cui Li Nina Matoussevitch Bernd Spliethoff Helmut Bönnemann Ferdi Schüth

The fabrication of carbon-shell protected cobalt nanoparticles and hollow graphitic shells has been achieved via a pyrolysis process by using monodispersed cobalt nanoparticles as a template. These materials are mesoporous and highly stable under strong acidic and basic conditions.

Journal: :Chemical communications 2008
Hui Wang Aiqin Wang Xiaodong Wang Tao Zhang

Nanosized and highly dispersed molybdenum carbide was fabricated in the carbon walls, along with the formation of ordered mesoporous carbons, via a one-pot organic-organic cooperative self-assembly approach.

Journal: :Physical chemistry chemical physics : PCCP 2011
Shanthi Murali Daniel R Dreyer Patricia Valle-Vigón Meryl D Stoller Yanwu Zhu Cornelio Morales Antonio B Fuertes Christopher W Bielawski Rodney S Ruoff

The performance of mesoporous carbon capsules as electrode materials in electrochemical double layer capacitors (EDLCs) was evaluated in the presence of a variety of electrolytes, including room temperature ionic liquids (ILs).

2016
Bayram Kilic Sunay Turkdogan Aykut Astam Oguz Can Ozer Mansur Asgin Hulya Cebeci Deniz Urk Selin Pravadili Mucur

Multi-walled carbon nanotube (MWCNT)/TiO2 mesoporous networks can be employed as a new alternative photoanode in dye-sensitized solar cells (DSSCs). By using the MWCNT/TiO2 mesoporous as photoanodes in DSSC, we demonstrate that the MWCNT/TiO2 mesoporous photoanode is promising alternative to standard FTO/TiO2 mesoporous based DSSC due to larger specific surface area and high electrochemical act...

2013
Jiacheng Wang Hu Zhou Jiandong Zhuang Qian Liu

Ordered mesoporous carbons (OMCs), obtained by nanocasting using ordered mesoporous silicas (OMSs) as hard templates, exhibit unique arrangements of ordered regular nanopore/nanowire mesostructures. Here, we used nanocasting combined with hot-pressing to prepare 10 wt% OMC/OMS/SiO2 ternary composites possessing various carbon mesostructure configurations of different dimensionalities (1D isolat...

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