The Experts below are selected from a list of 23622 Experts worldwide ranked by ideXlab platform
Atsushi Satsuma - One of the best experts on this subject based on the ideXlab platform.
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selective hydrogenation of 2 Hydroxymethyl 5 furfural to 2 5 bis Hydroxymethyl furan over gold sub nano clusters
RSC Advances, 2013Co-Authors: Junya Ohyama, Akihiko Esaki, Yuta Yamamoto, Shigeo Arai, Atsushi SatsumaAbstract:We report a gold sub-nano cluster supported on Al2O3 catalyzed hydrogenation of 2-Hydroxymethyl-5-furfural without furan ring hydrogenation and its opening reaction, which resulted in excellent conversion to 2,5-bis(Hydroxymethyl)furan (>96% yield), Fig. 1(a).
Jong-geon Jegal - One of the best experts on this subject based on the ideXlab platform.
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heterogeneous zirconia supported ruthenium catalyst for highly selective hydrogenation of 5 Hydroxymethyl 2 furaldehyde to 2 5 bis Hydroxymethyl furans in various n alcohol solvents
RSC Advances, 2016Co-Authors: Hyungseok Jang, Sung Yeon Hwang, Jong-geon JegalAbstract:5-Hydroxymethyl-2-furaldehyde (HMF) was hydrogenated to 2,5-bis(Hydroxymethyl)furan (BHMF) (>99% yield) in various n-alcohol solvents using a Ru(OH)x/ZrO2 catalyst. The TON and TOF for the hydrogenation were calculated to be 912 and 304 h−1, respectively.
Junya Ohyama - One of the best experts on this subject based on the ideXlab platform.
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selective hydrogenation of 2 Hydroxymethyl 5 furfural to 2 5 bis Hydroxymethyl furan over gold sub nano clusters
RSC Advances, 2013Co-Authors: Junya Ohyama, Akihiko Esaki, Yuta Yamamoto, Shigeo Arai, Atsushi SatsumaAbstract:We report a gold sub-nano cluster supported on Al2O3 catalyzed hydrogenation of 2-Hydroxymethyl-5-furfural without furan ring hydrogenation and its opening reaction, which resulted in excellent conversion to 2,5-bis(Hydroxymethyl)furan (>96% yield), Fig. 1(a).
Mariaanna Bornik - One of the best experts on this subject based on the ideXlab platform.
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formation of 5 Hydroxymethyl 2 furfural hmf and 5 Hydroxymethyl 2 furoic acid during roasting of coffee
Molecular Nutrition & Food Research, 2007Co-Authors: Michael Murkovic, Mariaanna BornikAbstract:The formation of 5-Hydroxymethyl-2-furfural (HMF) and 5-Hydroxymethyl-2-furoic acid (HMFA) during roasting of coffee was studied. At 240 degrees C the maximum concentration of HMF occurs after 3 min with a quick degradation up to 10 min when most of the HMF has disappeared again. Similar to 5-Hydroxymethyl-furfural, HMFA is formed in coffee but not in a model system consisting of sucrose, alanine with or without chlorogenic acid. It was shown that HMFA is produced from different precursors than HMF namely glyceraldehyde and pyruvate. The comparison of the laboratory scale roasting with industrial roasting showed that 5-Hydroxymethyl-furfural decreases with a higher degree of roasting whereas HMFA did not change. In the laboratory scale experiments, the highest concentration of 5-Hydroxymethyl-furfural in coffee (909 microg/g) was obtained after 3 min and the maximum concentration of HMFA after 4 min (150 microg/g). Industrially roasted coffee contained up to 350 microg/g 5-Hydroxymethyl-furfural and 140 microg/g HMFA.
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formation of 5 Hydroxymethyl 2 furfural hmf and 5 Hydroxymethyl 2 furoic acid during roasting of coffee
COST 927 Workshop, 2007Co-Authors: Michael Murkovic, Mariaanna BornikAbstract:The formation of 5-Hydroxymethyl-2-furfural (HMF) and 5-Hydroxymethyl-2-furoic acid (HMFA) during roasting of coffee was studied. At 240°C the maximum concentration of HMF occurs after 3 min with a quick degradation up to 10 min when most of the HMF has disappeared again. Similar to 5-Hydroxymethyl-furfural, HMFA is formed in coffee but not in a model system consisting of sucrose, alanine with or without chlorogenic acid. It was shown that HMFA is produced from different precursors than HMF namely glyceraldehyde and pyruvate. The comparison of the laboratory scale roasting with industrial roasting showed that 5-Hydroxymethyl-furfural decreases with a higher degree of roasting whereas HMFA did not change. In the laboratory scale experiments, the highest concentration of 5-Hydroxymethyl-furfural in coffee (909 μg/g) was obtained after 3 min and the maximum concentration of HMFA after 4 min (150 μg/g). Industrially roasted coffee contained up to 350 μg/g 5-Hydroxymethyl-furfural and 140 μg/g HMFA.
Hyungseok Jang - One of the best experts on this subject based on the ideXlab platform.
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heterogeneous zirconia supported ruthenium catalyst for highly selective hydrogenation of 5 Hydroxymethyl 2 furaldehyde to 2 5 bis Hydroxymethyl furans in various n alcohol solvents
RSC Advances, 2016Co-Authors: Hyungseok Jang, Sung Yeon Hwang, Jong-geon JegalAbstract:5-Hydroxymethyl-2-furaldehyde (HMF) was hydrogenated to 2,5-bis(Hydroxymethyl)furan (BHMF) (>99% yield) in various n-alcohol solvents using a Ru(OH)x/ZrO2 catalyst. The TON and TOF for the hydrogenation were calculated to be 912 and 304 h−1, respectively.
