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ID 114835
著者
Ehiro, Takuya Osaka Research Institute of Industrial Science and Technology
Dohshi, Satoru Osaka Research Institute of Industrial Science and Technology
キーワード
Hydroxyapatite
Catalyst
Isobutane
Isobutene
Coking
資料タイプ
学術雑誌論文
抄録
Hydroxyapatite (HAp) samples were prepared from precursor solutions with different Ca/P molar ratios. The HAp samples were utilized as catalysts for the oxidative dehydrogenation (ODH) of isobutane. Also, the HAp samples were characterized by N2 and H2O adsorption-desorption measurements, X-ray diffraction, inductively coupled plasma optical emission spectrometry, thermogravimetry-differential thermal analyses, and temperature-programmed oxidation (TPO). The Ca/P molar ratio of the precursor solution had a major influence on the catalytic activity and coking resistance ability. The HAp catalyst prepared from the stoichiometric precursor solution [HAp (1.67)] showed the highest isobutene yield. Furthermore, the white color of HAp (1.67) remained unchanged during the ODH of isobutene, indicating the absence of coke on the surface of HAp (1.67) after the reaction and its higher coking resistance ability. The results of the TPO measurements showed that the HAp (1.67) catalyst possesses the strongest oxidation ability which is likely related to its higher coking resistance ability.
掲載誌名
Phosphorus Research Bulletin
ISSN
09184783
18822363
cat書誌ID
AA12109680
出版者
Japanese Association of Inorganic Phosphorus Chemistry
35
開始ページ
48
終了ページ
54
発行日
2019
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
理工学系