نتایج جستجو برای: nano graphitic mesoporous carbon

تعداد نتایج: 337169  

Journal: :Chemical communications 2008
Lei Wang Chungui Tian Baoli Wang Ruihong Wang Wei Zhou Honggang Fu

Graphitic carbon nanocapsules, nanosheets and nanoplates were selectively obtained via a solid-state pyrolysis route from various ion-exchange resin-iron complexes.

2016
Julien Kiener Ovidiu Ersen Julien Parmentier Samuel Bernard André Ayral Philippe Miele

Nanocomposites of ordered mesoporous carbon associated with chromium nitride (CrN) or vanadium nitride (VN) nanoparticles were obtained by a simple one-pot synthesis based on the solvent evaporation induced self-assembly (EISA) process using Pluronic triblock surfactant as soft-template and a phenol-based resin (resol) as carbon precursor. These nanocomposites were characterized by X-ray diffra...

Journal: :Nanotechnology 2013
Junsu Park Gil-Pyo Kim Inho Nam Soomin Park Jongheop Yi

Silicon nanoparticles trapped in an ordered mesoporous carbon composite were prepared by a one-step self-assembly with solvent evaporation using the triblock copolymer Pluronic F127 and a resorcinol-formaldehyde polymer as the templating agent and carbon precursor respectively. Such a one-pot synthesis of Si/ordered mesoporous carbon nanocomposite is suitable for large-scale synthesis. Characte...

2017
Zhipeng Yu Jinhua Piao Zhenxing Liang

2D nitrogen-doped mesoporous carbon (NMC) is synthesized by using a mesoporous silica film as hard template, which is then investigated as a non-precious metal catalyst for the oxygen reduction reaction (ORR). The effect of the synthesis conditions on the silica template and carbon is extensively investigated. In this work, we employ dual templates-viz. graphene oxide and triblock copolymer F12...

2002
Takashi Onaka Yoko Okada

We report the detection of a feature at 65μm and a broad feature around 100μm in the far-infrared spectra of the diffuse emission from two active starforming regions, the Carina nebula and Sharpless 171. The features are seen in the spectra over a wide area of the observed regions, indicating that the carriers are fairly ubiquitous species in the interstellar medium. A similar 65μm feature has ...

AHMED A. S., , RAMOS V. P. S., , RAND B., ,

Some of the scientific principles underlying the role of carbon and graphite in graphitic refractories are considered, with emphasis on the graphite phase. The highly anisotropic nature ofgraphite is a key factor in its ability to modify the properties of oxide refractories, resulting in the potential for anisotropy in the subsequent graphitic composite, depending upon the fabrication condition...

2017
Qi Wang Cheng Chen Wen Liu Xiaoqiang He Nian Zhou Dongli Zhang Hongchen Gu Jidong Li Jiaxing Jiang Wei Huang

Chronic osteomyelitis is a prolonged persistent disease accompanied by bone destruction and sequestrum formation, it is very difficult to treat. Antibiotic loaded polymethyl methacrylate (PMMA) has been used in clinical. However, when PMMA was implanted in the body, the deficiencies is that it is non-biodegradable and a second operation is needed. Here, we synthesize a novel levofloxacin loaded...

2015
Arpana Kumari Balwinder Kaur Rajendra Srivastava Rajender S. Sangwan

Alkaline protease from brinjal leaf (Solanum melongena) having milk clotting activity has been purified to 9.44 fold to a final specific activity of 45.71 U/mg. SDS-PAGE of the final preparation revealed a single protein band of approx 14 kDa. Purified enzyme was characterized and was successfully immobilized into the amorphous mesoporous silica (SBA-15) and crystalline mesoporous zeolite (Nano...

Journal: :Solar RRL 2021

Planar-heterojunction perovskite solar cells (PSCs) have experienced rapid evolution in recent years because of the low-temperature processing, suitable alignment, and high mobility tin oxide buried contact layer. However, improper SnO2 surface states poor crystallinity top films are still main obstacles for planar PSCs which performance always lags behind their mesoporous counterparts. Herein,...

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