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Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1416-4

Abstract:

• Solvent-free chitosan oxidation is obtained by rapid mechanochemical

Keywords： Chitosan     High energy ball milling     Mechanochemistry     Oxidation    

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Expression and characterization of a CALB-type lipase from

Jiang-Wei Shen, Xue Cai, Bao-Juan Dou, Feng-Yu Qi, Xiao-Jian Zhang, Zhi-Qiang Liu, Yu-Guo Zheng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 868-879 doi: 10.1007/s11705-019-1889-x

Abstract: was covalently immobilized and successfully used for ethyl hexanoate synthesis in cyclohexane or in a solvent-freesystem with a high conversion yield (>95%).

Keywords： lipase     Sporisorium reilianum     biochemical characterization     short-chain flavor ester     solvent-free system    

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Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective catalytic oxidation of cyclohexane

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: The one-step highly selective oxidation of cyclohexane into cyclohexanone and cyclohexanol as the essential intermediates of nylon-6 and nylon-66 is considerably challenging. Therefore, an efficient and low-cost catalyst must be urgently developed to improve the efficiency of this process. In this study, a Co3O4–CeO2 composite oxide catalyst was successfully prepared through ultrasound-assisted co-precipitation. This catalyst exhibited a higher selectivity to KA-oil, which was benefited from the synergistic effects between Co3+/Co2+ and Ce4+/Ce3+ redox pairs, than bulk CeO2 and/or Co3O4. Under the optimum reaction conditions, 89.6% selectivity to KA-oil with a cyclohexane conversion of 5.8% was achieved over Co3O4–CeO2. Its catalytic performance remained unchanged after five runs. Using the synergistic effects between the redox pairs of different transition metals, this study provides a feasible strategy to design high-performance catalysts for the selective oxidation of alkanes.

Keywords： composite oxides     cyclohexanone     cyclohexanol     ultrasonic-assisted co-precipitation     selective oxidation     solvent-free    

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Implementing An “Impracticable” Copolymerization to Fabricate A Desired Polymer Precursor for N-doped Porous Carbons Article

Shi-Chao Qi, Xiao-Jie Lu, Yin-Cong Lou, Rui Zhou, Ding-Ming Xue, Xiao-Qin Liu, Lin-Bing Sun

Engineering 2022, Volume 16, Issue 9,   Pages 154-161 doi: 10.1016/j.eng.2021.07.031

Abstract: Considerable efforts have been made but wasted in searching for unknown reaction conditions in solventtris(chloromethyl)-2,4,6-trimethylbenzene and melamine was confirmed to be impracticable under various solventconditions; however, it was successfully implemented using a solvent-free method.monomer molecules in the solid phase, were demonstrated to make the copolymerization successful in the solvent-free

Keywords： Solvent-free method     Solvent effect     Copolymerization     N-doped porous carbon    

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Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 281-287 doi: 10.1007/s11709-012-0167-5

Abstract: A new artificial boundary condition for time domain analysis of a structure-unlimited-foundation systemThe boundary condition was based on the damping-solvent extraction method.The principle of the damping-solvent extraction method was described.Compared with the damping-solvent extraction method, this boundary condition is easier to be applied

Keywords： damping-solvent extraction method     structure-unlimited-foundation system     spring-damper system     artificial    

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Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 58-65 doi: 10.1007/s11705-017-1610-x

Abstract: The advent of synthetic biology has ushered in new applications of cell-free transcription-translationThese cell-free systems are reconstituted using cellular proteins, and are amenable to modular controlHere, we discuss the historical advancement of cell-free systems, as well as their new applications inFinally, we present our vision on the future direction of cell-free synthetic biology.

Keywords： cell-free system     application    

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Preliminary study on preparation of cell-free system for protein expression

CHEN Haiqin, XU Zhinan, WANG Cheng, CEN Peilin, LIAO Yuhua

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 224-229 doi: 10.1007/s11705-008-0029-9

Abstract: The cell-free protein synthesis system provides a new strategy of protein expression with advantagesare the key factors for the successful construction of cell-free protein expression system.Meanwhile, the optimal substrate concentrations and the energy regeneration system were selected.optimized conditions, the green fluorescent protein (GFP) reporter gene was expressed in the cell-freesystem with high expression level (Ca. 154 ?

Keywords： cell-free     regeneration     extract     information     successful construction    

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A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 1-10 doi: 10.1007/s11708-019-0655-6

Abstract: The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developedBesides, the power system integrated with four FPSGs and potassium heat pipes was performed and the singleThe results show that this system could provide an electrical power of 300 W at an overall thermal efficiencyThus, it is concluded that this power system is feasible and will have a great prospect for future applications

Keywords： free piston Stirling generator (FPSG)     potassium heat pipe     power system     energy conversion    

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Design and modeling of a free-piston engine generator

Frontiers in Energy   Pages 811-821 doi: 10.1007/s11708-022-0848-2

Abstract: Free-piston engine generators (FPEGs) can be applied as decarbonized range extenders for electric vehiclesThe designed FPEG produced 10.2 kW of electric power with an overall system efficiency of 38.5% in a

Keywords： free-piston engine generator     linear permanent magnet synchronous machine     system design     numerical model    

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Regulation of radicals by hydrogen-donor solvent in direct coal liquefaction

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1689-1699 doi: 10.1007/s11705-022-2186-7

Abstract: The synergistic mechanism of hydrogen supply and hydrogenolysis of hydrogen-donor solvent was proposed

Keywords： direct coal liquefaction     hydrogen-donor solvent     induced pyrolysis     radical mechanism     density functional    

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Micronization of curcumin with biodegradable polymer by supercritical anti-solvent using micro swirl

Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 184-193 doi: 10.1007/s11705-017-1678-3

Abstract: employed to produce the micronized curcumin with polyvinylpyrrolidone (PVP) by the supercritical anti-solvent

Keywords： micronization     curcumin     polyvinylpyrrolidone     supercritical anti-solvent     swirl mixer    

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Deep eutectic solvent inclusions for high- composite dielectric elastomers

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 996-1002 doi: 10.1007/s11705-022-2138-2

Abstract: developed a novel strategy for improving the dielectric constant of polymeric elastomers via deep eutectic solvent

Keywords： composite materials     deep eutectic solvent     dielectric elastomer     high dielectric constant    

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A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acid

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 31-42 doi: 10.1007/s11783-012-0463-2

Abstract: optimized procedure based on gas chromatography-mass spectrometry (GC-MS) combined with accelerated solvent

Keywords： phthalic acid esters     quality assurance and quality control     soil type     accelerated solvent extraction     certified    

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Purification of artemisinin from quercetin by anti-solvent crystallization

Chandrakant R. MALWADE, Haiyan QU, Ben-Guang RONG, Lars P. CHRISTENSEN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 72-78 doi: 10.1007/s11705-013-1305-x

Abstract: In the present work, anti-solvent crystallization of artemisinin from four different organic solventsWater was used as anti-solvent.The effect of an impurity (quercetin) on the performance of anti-solvent crystallization of artemisininAnti-solvent crystallization experiments were designed based on the fundamental process data determinedFirstly, the anti-solvent crystallization of artemisinin without impurity was performed from all four

Keywords： anti-solvent crystallization     artemisinin     quercetin     solubility     Artemisia annua    

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Review of solvent based carbon-dioxide capture technologies

Kathryn A. MUMFORD,Yue WU,Kathryn H. SMITH,Geoffrey W. STEVENS

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 125-141 doi: 10.1007/s11705-015-1514-6

Abstract: This review provides an update on the status of large scale integrated CCS technologies using solventrate, CO capture capacity, thereby reducing equipment size and decreasing the energy required for solvent

Keywords： large scale     carbon dioxide     carbon capture     solvent absorption    

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Title Author Date Type Operation

Solvent-free mechanochemical mild oxidation method to enhance adsorption properties of chitosan

Journal Article

Expression and characterization of a CALB-type lipase from

Jiang-Wei Shen, Xue Cai, Bao-Juan Dou, Feng-Yu Qi, Xiao-Jian Zhang, Zhi-Qiang Liu, Yu-Guo Zheng

Journal Article

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective catalytic oxidation of cyclohexane

Journal Article

Implementing An “Impracticable” Copolymerization to Fabricate A Desired Polymer Precursor for N-doped Porous Carbons

Shi-Chao Qi, Xiao-Jie Lu, Yin-Cong Lou, Rui Zhou, Ding-Ming Xue, Xiao-Qin Liu, Lin-Bing Sun

Journal Article

Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Journal Article

Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Journal Article

Preliminary study on preparation of cell-free system for protein expression

CHEN Haiqin, XU Zhinan, WANG Cheng, CEN Peilin, LIAO Yuhua

Journal Article

A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Journal Article

Design and modeling of a free-piston engine generator

Journal Article

Regulation of radicals by hydrogen-donor solvent in direct coal liquefaction

Journal Article

Micronization of curcumin with biodegradable polymer by supercritical anti-solvent using micro swirl

Kimthet Chhouk, Wahyudiono, Hideki Kanda, Shin-Ichro Kawasaki, Motonobu Goto

Journal Article

Deep eutectic solvent inclusions for high- composite dielectric elastomers

Journal Article

A new procedure combining GC-MS with accelerated solvent extraction for the analysis of phthalic acid

Tingting MA, Ying TENG, Peter CHRISTIE, Yongming LUO, Yongshan CHEN, Mao YE, Yujuan HUANG

Journal Article

Purification of artemisinin from quercetin by anti-solvent crystallization

Chandrakant R. MALWADE, Haiyan QU, Ben-Guang RONG, Lars P. CHRISTENSEN

Journal Article

Review of solvent based carbon-dioxide capture technologies

Kathryn A. MUMFORD,Yue WU,Kathryn H. SMITH,Geoffrey W. STEVENS

Journal Article