Article
Chemistry, Multidisciplinary
Xudong Wang, Qingbo Deng, Yi Zhang, Zhilin Ren, Ping He
Summary: Efficient production of 5-hydroxymethylfurfural (5-HMF) from fructose dehydration was achieved using a strong acidic ion-functionalized porous carbon (PCN-ILSO3CF3) as catalyst. The optimized reaction conditions were 110 degrees C for 50 min in DMSO, resulting in full fructose conversion and a 5-HMF yield of 95.6%. The PCN-ILSO3CF3 catalyst exhibited high Bronsted acid density and a super-high surface area of 1400 m(2)/g, enabling selective adsorption of fructose and rapid removal of 5-HMF from the catalyst surface. The catalyst also showed good reusability with 84.0% 5-HMF yield after five runs.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Multidisciplinary
Hongtao Zhang, Xiao Liu, Miaomiao Han, Rui Zhang
Summary: In this study, a three-component deep eutectic solvent system was used to convert bio-carbohydrates into 5-hydroxymethylfurfural (HMF). The method showed high conversion and yield, as well as better selectivity, making it a promising alternative for the utilization of biomass.
Article
Chemistry, Multidisciplinary
Yao Shen, Fang Lin, Kang Wang, Xitao Wang
Summary: By doping CaO, alkyl grafting and NbCl5 impregnation on γ-Al2O3 beads, an efficient catalyst was constructed for the conversion of glucose to 5-HMF. Under suitable reaction conditions, complete conversion of glucose and high yield of 5-HMF can be achieved.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xinglong Li, Mingming Li, Yuxin Liu, Yisi Feng, Pan Pan
Summary: In this study, a new magnetic catalyst was developed for the preparation of HMF from fructose in 2-pentanol. The catalyst showed good performance and could be easily separated by magnetism.
Article
Engineering, Chemical
Yexin Hu, Yanru Zhang, Xing Fu, Dianyong Tang, Hui Li, Ping Hu, Liangfang Zhu, Changwei Hu
Summary: The presence of NaCl in water inhibits the degradation of fructose and reduces the formation of unwanted byproducts, but promotes the formation of soluble humins.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Di Zeng, Wenjing Wang, Yu Zhang, Juxue Wang, Bingkun Cui, Taikang Jia, Ruofan Li, Hongxiang Chu, Ling Zhang, Wenzhong Wang
Summary: A catalyst with phosphotungstic acid and cobalt sites was developed by incorporating them into UiO-66, enabling a one-pot cascade conversion of fructose to FDCA with high conversion (> 99%) and yield (94.6%) through controllable Lewis/Bronsted acid sites and redox sites. This study provides new strategies for efficient production of FDCA from biomass through the design of multifunctional catalysts.
Article
Green & Sustainable Science & Technology
Nattha Klanarong, Nagahiro Saito, Isarawut Prasertsung, Siriporn Damrongsakkul
Summary: In this study, the solution plasma process (SPP) was used to convert fructose into 5-hydroxymethylfurfural (HMF), resulting in high fructose conversion and HMF yield at a lower temperature compared to conventional heating processes.
Article
Chemistry, Multidisciplinary
Ayush Vasishta, Hitesh S. Pawar
Summary: In this study, a polyethyleneimine (PEI)-functionalized polymeric Bronsted acid ionic liquid (PolyE-IL) catalyst was used for fructose dehydration to produce 5-hydroxymethyl furfural (5-HMF) in the presence of isopropyl alcohol (IPA) as a green solvent. Among the tested catalysts, only PolyE-IL with [HSO4](-), [CF3CO2](-), [TfO](-), and [TsO](-) counterions showed the formation of 5-HMF.
Article
Chemistry, Multidisciplinary
Pierpaolo Modugno, Maria-Magdalena Titirici
Summary: Hydrothermal carbonization is an effective way to convert cellulosic waste into valuable platform chemicals and carbonaceous materials, with fructose being an ideal carbon precursor. The study found that acid catalysis and reaction conditions have a significant impact on the conversion products, and a slight overpressure of the reactor is beneficial for improving conversion efficiency.
Article
Chemistry, Multidisciplinary
Thien-Hang Thi Nguyen, Ha Bich Phan, Trinh Hao Nguyen, Kim Nguyen Tran, Linh Ho Thuy Nguyen, Tan Le Hoang Doan, Phuong Hoang Tran
Summary: In this study, three carbon-based solid acid catalysts were prepared using glucose and Bronsted acid. The catalysts were tested for their ability to convert cellulose into valuable chemicals. The as-synthesized C-H2SO4 catalyst showed high activity and yield in converting cellulose into valuable chemicals in the presence of [EMIM]Cl solvent at 120 degrees C in 24 h. The proposed mechanism for cellulose conversion was also presented.
Article
Chemistry, Multidisciplinary
Yulia Tobolovskaya, Jury J. Medvedev, Xenia V. Medvedeva, Mirfath S. Mesbahuddin, Nardo Esmeralda Nava Rodriguez, Subha Kalyaanamoorthy, Anna Klinkova
Summary: The electrochemical reduction of CO2 into value-added products is a promising strategy for carbon footprint mitigation. Current research efforts are focused on combining this strategy with CO2 capture in bicarbonate-based solvents to build an efficient CO2 capture and utilization system. The primary challenge to address in this system is the development of a cost-effective CO2 regeneration method that will enable the CO2 gas feed to be continuously recovered from the bicarbonate capture medium for utilization.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
Ling Xu, Xilei Lyu, Yuxi Jiang, Xiwen Wei, Renfeng Nie, Xiuyang Lu
Summary: A new cascade catalytic system was developed for the one-pot production of FDM from glucose and polysaccharides, achieving high yields under mild reaction conditions. This system shows great potential for industrial applications in biomass transformation.
Article
Green & Sustainable Science & Technology
Bo Cai, Rui Kang, Dayi Guo, Junfeng Feng, Tianyi Ma, Hui Pan
Summary: An eco-friendly and stable metal-free acidic catalyst, P-UCN, was synthesized for the highly efficient dehydration of fructose to HMF. The introduction of acidic sites via thermal polycondensation of urea in the g-C3N4 structure improved catalytic activity. The P-UCN catalyst with optimal P content exhibited high stability and could be recycled multiple times.
Article
Chemistry, Physical
Vincent Oriez, Helene Labauze, Bouchra Benjelloun-Mlayah, Thomas Deleau, Yuya Hiraga, Masaru Watanabe, Jean-Stephane Condoret, Severine Camy
Summary: An extractive reaction configuration using supercritical carbon dioxide as the extracting solvent was tested for the production of 5-hydroxymethyl furfural (HMF) from fructose. The yield of HMF reached 62.4% in this configuration, the highest reported so far without the use of a catalyst or organic solvent. The efficient separation and high purity of HMF in the extract eliminates the need for post reactional purification.
JOURNAL OF SUPERCRITICAL FLUIDS
(2023)
Article
Engineering, Chemical
Xiangbo Song, Jun Yue, Yuting Zhu, Chengyan Wen, Lungang Chen, Qiying Liu, Longlong Ma, Chenguang Wang
Summary: Efficient conversion of biomass-derived carbohydrates into highly value-added 5-hydroxymethylfurfural (HMF) using Sn/SAPO-34 catalysts was investigated. Control of Sn loading amount could adjust acid strength and amount in the catalyst, while excessively high loading would decrease performance due to structure damage. The 5%Sn/SAPO-34 catalyst showed superior performance in achieving high HMF yield from glucose conversion.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Polymer Science
Suguru Motokucho, Yu Nakayama, Hiroshi Morikawa, Hisayuki Nakatani
JOURNAL OF APPLIED POLYMER SCIENCE
(2018)
Article
Chemistry, Multidisciplinary
Hiroshi Morikawa, Masato Minamoto, Yuuta Gorou, Jun-ichi Yamaguchi, Hisatoyo Morinaga, Suguru Motokucho
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2018)
Article
Polymer Science
Suguru Motokucho, Hirotoshi Yamada, Yusuke Suga, Hiroshi Morikawa, Hisayuki Nakatani, Kouki Urita, Isamu Moriguchi
Article
Chemistry, Physical
Hisayuki Nakatani, Ryousuke Hamachi, Kenta Fukui, Suguru Motokucho
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2018)
Article
Chemistry, Organic
Hiroshi Morikawa, Jun-ichi Yamaguchi, Shun-ichi Sugimura, Masato Minamoto, Yuuta Gorou, Hisatoyo Morinaga, Suguru Motokucho
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
(2019)
Article
Polymer Science
Juhyeon Lee, Yukito Urakawa, Suguru Motokucho, Hisayuki Nakatani
POLYMER DEGRADATION AND STABILITY
(2019)
Article
Chemistry, Analytical
Yuya Nishiyama, Shogo Kumagai, Suguru Motokucho, Tomohito Kameda, Yuko Saito, Atsushi Watanabe, Hisayuki Nakatani, Toshiaki Yoshioka
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2020)
Article
Engineering, Environmental
Hisayuki Nakatani, Takuma Kyan, Takuya Muraoka
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2020)
Article
Chemistry, Multidisciplinary
Suguru Motokucho, Yuya Takenouchi, Rumi Satoh, Hiroshi Morikawa, Hisayuki Nakatani
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Engineering, Environmental
Hisayuki Nakatani, Takuma Kyan, Yukito Urakawa
Summary: The poly(styrene-block-acrylic acid) containing TiO2 gel polymer photocatalyst showed photocatalytic activity to PS particles in water, with molecular weight decrease and the use of different hindered amine light stabilizers. Phthalocyanine modified photocatalyst was active under visible light irradiation, and a N-OR type HALS (LA-81) acted as radical scavenger to control PS autoxidation. The heat treatment affected molecular weight through chain scission mechanism, with differences observed between PS and PS/LA-81 due to intra-alkyl radical production.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Hisayuk Nakatani, Takuya Muraoka, Yuina Ohshima, Suguru Motokucho
Summary: The study found that delamination behavior depends on the oxidation state of the material, and the fluctuations in carbonyl index and weight change ratio are caused by repeated oxidation and delamination. This indicates that delamination is based on environmental stress cracking.
SN APPLIED SCIENCES
(2021)
Article
Chemistry, Applied
Hisayuki Nakatani, Haruka Hayashi, Suguru Motokucho
Summary: A PS-g-TEMPO copolymer was formed during thermal-oxidative degradation of PS/HALS, with the optimal preparation condition identified at 150°C for 21 hours. The copolymer was then reacted with PP to produce a PS-g-PP grafted copolymer, resulting in significant improvement in mechanical properties and ductile fracture surface when used for reactive polymer blend of PP/PS/PS-g-TEMPO. The addition of HALS loading easily produced an excellent compatibilizer for mechanical improvement in PP/PS.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Suguru Motokucho, Hiroshi Morikawa
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)