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| 1 | Ionic liquids: Efficient solvent and medium for the transformation of renewable lignocellulose显示文摘Carbon-enriched lignocelluloses are regarded as the perfect alternative for nonrenewable fossil fuel, and have a great potential to alleviate the increasing energy crisis and climate change. However, the tightly covalent structure and strong intra and in- ter-molecular hydrogen bonding in lignocellulose make it high recalcitrance to transformation due to the poor solubility in wa- ter or common organic solvents. Dissolution and transformation of lignocellulose and its constituents in ionic liquids have therefore attracted much attention recently due to the tunable physical-chemical properties. Here, ionic liquids with excellent dissolving capability for biomass and its ingredients were examined. The technologies for lignocellulose biorefining in the presence of ionic liquid solvents or catalysts were also summarized. Some pertinent suggestions for the future catalytic conver- sion and unitization of this sustained carbon-rich resource are proposed. | LONG JinXing LI XueHui WANG LeFu ZHANG Ning | 2012 | Science China Chemistry2012，55，8： | 3 |
| 2 | Which is the determinant for cellulose degradation in cooperative ionic liquid pairs: dissolution or catalysis?显示文摘Catalytic conversion of sustainable cellulose to the value-added chemicals and high quality biofuel has been recognized as a perfect approach for the alleviation of the dependence on the non-renewable fossil resources. Previously, we successfully designed and explored novel and efficient cooperative ionic liquid pairs for this renewable material, which has advantages of high reactor efficiency than current technologies because of the dissolution and in situ catalytic decomposition mechanism. Here, the determinant of this process is further studied by the intensive investigation on the relationship between the cellulose conversion and the properties of ionic liquid catalyst and solvent. Scanning electron microscope(SEM), thermogravimetric analysis(TG) and elemental analysis were used for the comparative characterization of raw cellulose and the residues. The results demonstrate that this consecutive dissolution and in situ catalysis process is much more dependent on the dissolution capability of ionic liquid solvent, while comparatively, the effect of in situ acid catalysis is relatively insignificant. | Jinxing Long Yangyu Zhang Lefu Wang Xuehui Li | 2016 | Science China Chemistry2016，59，5： | 2 |
| 3 | Catalytic amounts of Bronsted acidic ionic liquids promoted esterification:Study of acidity-activity relationship显示文摘 | ZHAO YINGWEI LONG JINXING DENG FANGUO | | 0，，05： | 1 |
| 4 | In Situ Hydrogenation of model compounds and raw bio-oil over Raney Ni catalyst显示文摘 | Xu Ying Long Jinxing Liu Qiying | 2015 | Energy Conversion and Management2015，89，： | 1 |
| 5 | Catalytic amounts of Brostedacidic ionic liquids promoted esterification : Study of acidity - activity re-lationship 显示文摘 | Yingwei Zhao Jinxing Long Fanguo Deng | 2009 | Catalysis Communications2009，，10： | 1 |
| 6 | Catalytic amounts of Br?nsted acidic ionic liquids promoted esterification: Study of acidity–activity relationship显示文摘 | Yingwei Zhao Jinxing Long Fanguo Deng Xiaofei Liu Zhen Li Chungu Xia Jiajian Peng | 2008 | Catalysis Communications2008，，5： | 1 |
| 7 | Catalytic amounts of Bronsted acidic ionic liquids promoted esterification study of acidity-activity relationship 显示文摘 | Zhao Yingwei Long Jinxing Deng Fanguo | 2009 | Catal Comm2009，10，： | 1 |
| 8 | Catalytic amounts of Bronsted acidic ionic liquids promoted esterification : Study of acidity-ac- tivity relationship 显示文摘 | Zhao Yingwei Long Jinxing Deng Fanguo | 2009 | Catalysis Communications2009，10，5： | 1 |
| 9 | A real-time high-precision inter- polation algorithm for general-typed parametric curves in CNC machine tools显示文摘 | LIU Q JINX J LONG Y H | 2010 | International Journal of Computer Integrat- ed Manufacturing2010，23，2： | 1 |
| 10 | Cata- lytic amounts of Bronsted acidic ionic liquids promoted esterifieation: Study of acidity-activity relationship 显示文摘 | ZHAO Yingwei LONG Jinxing DENG Fanguo | 2009 | Catal Commun2009，10，5： | 1 |
| 11 | Catalytic amounts of Brφnsted acidic ionic liquids promoted esterification : Study of acidity - activity relationship 显示文摘 | Zhao Yingwei Long Jinxing Deng Fanguo | 2009 | Catalysis Communications2009，10，5： | 1 |
| 12 | Liquefaction of Rice Straw with Ethylene Carbonate显示文摘In this study,rice straw(RS) was liquefied by ethylene carbonate(EC) using H_2SO_4 as a catalyst.The effects of various process conditions on the liquefaction characteristics were investigated by FT-IR and residue content analysis.The results show that cellulose and lignin are degraded during the liquefaction process and large amounts of groups are generated.In addition,it is difficult to effectively liquefy RS by using EC alone as the liquefying agent without other additives.Compared to water addition on liquefaction,the residue content can be significantly reduced up to 30% by adding H_2O_2.It has also been proved that the liquor ratio(RS/EC,w/v) of 1∶5 with H_2O_2 as an additive at 145℃ for liquefaction time of 60 min in the presence of H_2SO_4 can accelerate the liquefaction process and high liquefaction yield can be obtained. | MeiYan Wu Zhu Long JinXing Lin Bin Wang | 2016 | Paper And Biomaterials2016，1，2： | 0 |
| 13 | Synthesis and fluorescent properties of quinoxaline derived ionic liquids显示文摘Ionic liquids(ILs) have attracted increasing attention since last few decades due to their high molecular design abilities and wide applications in different fields.In this study,four novel fluorescent isoquinolino [2,1-a]quinoxalin-5-ium ILs were designed and synthesized via a two-step process including a simple dual Schiff’s base formation and a subsequent [RhCp*Cl_(2)]_(2)-catalyzed oxidative C-H activation/annulation reaction.The as-synthesized ILs were extensively characterized using FT-IR,~1 H-NMR,^(13)C-NMR,^(19)F-NMR,HSQC-NMR,HMBC-NMR and HR-MS.Their photophysical properties were determined by steady-state fluorescence spectroscopy.The results demonstrate that all these ILs showed dual or triple emissions,large stokes shift(90 nm) and mechanochromic behaviors.Basing on solvatochromism and titration experiments,it is thought that the emission bands of the ILs are raised from their local excited states,charge transfer states or excited state proton transfer of cations,while the substitute effect of these quinoxaline derived ILs on their stokes shifts is negligible. | Jiaqi Wu Lei Zhang Jinxing Long Qiang Zeng Biaolin Yin Xuehui Li | 2022 | Green Energy & Environment2022，7，5： | 0 |
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