نتایج جستجو برای: alumina methanesulfonic acid

تعداد نتایج: 757891  

Journal: :Journal of the Meteorological Society of Japan. Ser. II 1991

2005
P. Kim J. Yi

Mesoporous Ni–alumina catalysts (Ni–alumina-pre and Ni–alumina-post) were synthesized by one-step sol–gel method using micelle complex comprising lauric acid and nickel ion as a template with metal source and using aluminum sec-butoxide as an aluminum source. The Ni–alumina catalysts showed relatively high surface areas (303 m/g for Ni–alumina-pre and 331 m/g for Ni–alumina-post) and narrow por...

Abdol Hamid Raesi Hossein Naeimi, Mohsen Moradian

The use of methanesulfonic acid as a Brønsted acid for direct ortho-acylation of phenols and naphthols proves to be a convenient, more general and direct route to various hydroxyaryl ketones. The route is regioselective, leading to ortho C-acylated products in satisfactory to high yields in most cases. The solvent free reactions described below exhibited environmentally benign in terms of faste...

Journal: :Plant physiology 1972
I Zelitch

Considerable evidence exists that the carboxyl-carbon atom of glycolic acid is the primary source of the CO(2) produced during photorespiration by leaves of many species of plants, including tobacco. Experiments were conducted to determine whether glyoxylate or glycine, both products of glycolic acid metabolism, is the more immediate precursor of photorespiratory CO(2).Illuminated tobacco leaf ...

2014
Tatsuya Kikuchi Osamu Nishinaga Daiki Nakajima Jun Kawashima Shungo Natsui Norihito Sakaguchi Ryosuke O. Suzuki

Anodic oxide fabricated by anodizing has been widely used for nanostructural engineering, but the nanomorphology is limited to only two oxides: anodic barrier and porous oxides. Therefore, the discovery of an additional anodic oxide with a unique nanofeature would expand the applicability of anodizing. Here we demonstrate the fabrication of a third-generation anodic oxide, specifically, anodic ...

Journal: :Angewandte Chemie 2003
Sudip Mukhopadhyay Alexis T Bell

Methane is abundant and relatively inexpensive, making it an attractive feedstock for producing bulk chemicals. However, the low reactivity of methane makes it difficult to develop commercially viable processes for methane conversion. Because of favorable thermodynamics, many authors have investigated the oxidation and oxidative carbonylation of methane. By contrast, the sulfonation of methane ...

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