乾式粉砕硫化モリブデンの粒子特性と触媒活性とに及ぼす粉砕媒体見かけ充てん率の影響

戸田 一路, 小浦 延幸, 井手本 康, 内田 邦夫, 栗木 安則, 島田 和夫, 早川 博, 伊ケ崎 文和

doi:10.4164/sptj.39.240

書誌事項

タイトル別名

Effect of Apparent Volume Fraction of Grinding Media on Characteristics and Catalytic Activity of MoS2 Comminuted Dry in Air.

説明

Molybdenum sulfide (MoS₂) particles comminuted in a planetary ball mill dry in air at various grinding media fractions were characterized by BET surface area, element analysis, XPS, XRD and catalytic activity. Hydrogenation of 1-methylnaphthalene (1-MN) is mainly conducted to examine the catalytic activity of the comminuted MoS₂ in a batch type autoclave swung at 30rpm. Relation was investigated between the characteristics of the comminuted MoS₂ and apparent volume fraction of grinding media.<br>Specific surface area, XRD line broadening, O/Mo measured by XPS and hydrogenation of 1-MN had the maximum and S/Mo by XPS had the minimum at the apparent volume fraction of 0.72. Catalytic activity was not explained soley by the increase in surface area of the comminuted MoS₂. The catalytic activity was well correlated with S/Mo and O/Mo measured by XPS, which showed that unsaturated coordination sites of Mo are active sites for hydrogenation of 1-MN. In the experimental conditions the lattice strain of (001) and (100) of the comminuted MoS₂ was almost constant, whereas the crystallite size was about 1/5 of as-received MoS₂ at the apparent volume fraction of 0.72.

収録刊行物

粉体工学会誌

粉体工学会誌 39 (4), 240-246, 2002

一般社団法人粉体工学会

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詳細情報詳細情報について

CRID: 1390001204511598208

NII論文ID: 130003777815

DOI: 10.4164/sptj.39.240

ISSN: 18837239; 03866157

本文言語コード: ja

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