Acid-Base Property of Tetragonal YNbO4 with Phosphate Groups and Its Catalysis for the Dehydration of Glucose to 5-Hydroxymethylfurfural

Padovan, Daniele; Endo, Koichiro; Matsumoto, Takeshi; Yokoi, Toshiyuki; Fukuoka, Atsushi; Kato, Hideki; Nakajima, Kiyotaka

Acid-Base Property of Tetragonal YNbO4 with Phosphate Groups and Its Catalysis for the Dehydration of Glucose to 5-Hydroxymethylfurfural

Padovan, Daniele; Endo, Koichiro; Matsumoto, Takeshi et al.

Small Structures, 2022, 4(6), 2200224

Permalink : https://hdl.handle.net/2115/87830

このアイテムのアクセス数:284件（2026-03-18 07:21 集計）

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ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.1002/sstr.202200224			16

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アクセス権	metadata only access
URI	https://hdl.handle.net/2115/87830
タイトル	Acid-Base Property of Tetragonal YNbO4 with Phosphate Groups and Its Catalysis for the Dehydration of Glucose to 5-Hydroxymethylfurfural
著者	Padovan, Daniele ; Endo, Koichiro ; Matsumoto, Takeshi ; Yokoi, Toshiyuki ; Fukuoka, Atsushi ; Kato, Hideki ; Nakajima, Kiyotaka
著者名 Padovan, Daniele
著者名 Endo, Koichiro
著者名 Matsumoto, Takeshi
著者名 Yokoi, Toshiyuki
e-Rad_Researcher 80189927 著者名 Fukuoka, Atsushi
著者名 Kato, Hideki
e-Rad_Researcher 90451997 著者名 Nakajima, Kiyotaka
言語	英語
キーワード	biomass valorization
	heterogeneous catalyses
	material characterizations
	mixed metal oxides
	solid Lewis acids
発行日	2022-11-16
出版者	John Wiley & Sons
収録物名	Small Structures
巻(号)	4(6)
ページ	2200224
抄録	Acid-base properties of amphoteric crystalline YNbO4, which is synthesized by co-precipitation method using a water-soluble Nb peroxo complex, are adjusted by the impregnation of phosphate groups. The resulting phosphate-YNbO4 materials are tested for glucose dehydration to 5-hydroxymethylfurfural (HMF). Both activity and selectivity increase by the introduction of phosphate groups, giving the optimal catalyst with five phosphate groups per nm(2) of surface (5P-YNbO4). 5P-YNbO4 shows approximate to 50% selectivity at 75% conversion. Pyridine adsorption experiments show that 5P-YNbO4 exclusively possesses Lewis acidity. NH3- and CO2-temperature programmed desorption measurements confirm that phosphoric acid treatment increases acid strength and acid density with concurrent loss of basicity. Experiments using isotope-labeled glucose clarify that HMF is formed on 5P-YNbO4 through the stepwise dehydration reaction mechanism. Recyclability experiments show an accumulation of carbon deposits at the end of each reaction causing deactivation, but the activity can be completely recovered by successive washing with water and subsequent calcination at 400 degrees C in air.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	2688-4062
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1002/sstr.202200224