The removal of sulfur compounds(thiophene) from petroleum via extraction with ionic liquids was systematically studied.The ionic liquid[BMIM][PF_6]([BMIM]^+—1-butyl-3-methylimidazolium hexatiuorophosphate cation) was...The removal of sulfur compounds(thiophene) from petroleum via extraction with ionic liquids was systematically studied.The ionic liquid[BMIM][PF_6]([BMIM]^+—1-butyl-3-methylimidazolium hexatiuorophosphate cation) was used to investigate its effect on thiophene removal.The test results showed that a higher temperature and a greater mass ratio of the ionic liquids versus the oil containing the sulfur compounds both helped to remove the thiophene from the feed oil.At a temperature of 60℃and an ionic liquid/feed oil mass ratio of 20%,the desulfurization rate could reach 52.39%, with the extraction time specified at 40 minutes.展开更多
In this paper,it was found that Ru（H_2bpp）_2（PF_6）2（H_2bpp = 2,6-bis（pyrazol-3-yl）pyridine） complex had excellent electrochemical activity at the carbon paste electrode in the buffer solution of Tris-HCl（pH ...In this paper,it was found that Ru（H_2bpp）_2（PF_6）2（H_2bpp = 2,6-bis（pyrazol-3-yl）pyridine） complex had excellent electrochemical activity at the carbon paste electrode in the buffer solution of Tris-HCl（pH 7.0） with a couple reversible redox peaks at 0.296 V and 0.348 V,respectively.Voltammetry was used to investigate the electrochemical behavior of Ru（H_2bpp）_2（PF_6）_2 and the interaction between Ru（H_2bpp）_2（PF_6）_2 and bovine serum albumin（BSA）.In the present of BSA,the oxidation peak current of Ru（H_2bpp）_2（PF_6）_2 complex was decreased linearly and the decrease of oxidation peak current of Ru（H_2bpp）_2（PF_6）_2 is proportional to BSA concentration from 0.1 to 2.5 mg/L with a detection limit 0.02 mg/L.展开更多
A new active material for ECL sensor. Ru(phen)2(phen-NICH2Br)(PF6)2 has beendesigned and synthesized. its structure was confirmed by means of IR. MS and 'H NMR. Also.some of its properties such as electrochemstry....A new active material for ECL sensor. Ru(phen)2(phen-NICH2Br)(PF6)2 has beendesigned and synthesized. its structure was confirmed by means of IR. MS and 'H NMR. Also.some of its properties such as electrochemstry. fluorescence and ECL are reported.展开更多
Dicyanide building block cis-Fe（phen）2（CN）2 and [MnⅢ（salen）]（ClO4） have been used to design and synthesize a cyanide-bridged complex, resulting in a heterobimetallic one-dimensional（1D） zigzag chain complex...Dicyanide building block cis-Fe（phen）2（CN）2 and [MnⅢ（salen）]（ClO4） have been used to design and synthesize a cyanide-bridged complex, resulting in a heterobimetallic one-dimensional（1D） zigzag chain complex 1, [cis-Fe（phen）2（CN）2Mn（salen）]（PF6）（phen =1,10-phenanthroline, salen=N,N-ethylenebis-（salicylideneaminato） dianion）. Single-crystal X-ray diffraction analysis shows complex 1 crystallizes in the monoclinic P2（1/c） space group and the asymmetric unit contains one [-NC-Fe（phen）2（μ-CN）-MnⅢ-（salen）-]＋ cation and one PF6- anion. In the cationic structure of 1, each FeⅡ（phen）2（CN）2 connects two [MnⅢ（salen）]＋ with two cyanide groups in a cis-conformation, and in turn each [MnⅢ（salen）]＋ unit links two FeⅡ（phen）2（CN）2 building blocks in a trans-conformation, resulting in a 1D [-NC-FeⅡ-CN-MnⅢ-]n chain. Furthermore, the electronic absorption spectra and electrochemical and magnetic properties of complex 1 have also been studied.展开更多
A new ECL-active species. Ru (phen)_2 (dcbpy) (PF_6)_2. has been designed andsynthesized. its structure was confirmed by means of IR. ESI-MS and 2D NMR. Also. itsproperties of electrochemistry. fluorescence and ECL ar...A new ECL-active species. Ru (phen)_2 (dcbpy) (PF_6)_2. has been designed andsynthesized. its structure was confirmed by means of IR. ESI-MS and 2D NMR. Also. itsproperties of electrochemistry. fluorescence and ECL are reported. which have suggested a goodhope of being used in electrochemiluminescent immunoassay and nucleic acid hybridization.展开更多
Metallic zinc is an ideal anode material owing to its high theoretical capacity(819 mAh·g^(-1)),ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries(ZIBs).However,the pr...Metallic zinc is an ideal anode material owing to its high theoretical capacity(819 mAh·g^(-1)),ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries(ZIBs).However,the practical application of current ZIBs is significantly restricted by irregular dendrite growth of zinc anode and the low working voltage(usually<2 V)of cathode materials.Herein,we report a high-voltage Zn-based dualion battery(DIB),which is constructed by a graphite cathode,a Zn anode,and 3 M LiPF_(6)in the ethyl methyl carbonate(EMC)electrolyte.Under the corrosion interaction of Li^(+)ions,Zn^(2+)can be easily dissolved from Zn anode into the electrolyte to enable dendrite-free Zn^(2+)plating/stripping at the anode.Moreover,an aqueous carboxymethyl cellulose(CMC)binder is employed to generate a robust cathode electrolyte interface(CEI)layer on the graphite cathode,which renders ultrafast PF_(6)^(-)-de-/intercalation into graphite.The resultant Zn-graphite DIB operates stably at a high cut off voltage of 3.2 V,corresponding to an average output voltage of 2.2 V.After 9000cycles at 5C,the high capacity retention of 95.9% can be achieved with~100% Coulomb efficiency.Based on the mass of cathode material,our Zn-graphite battery exhibits ultrafast rate capability(60 C,a discharge time of 44 s)and high energy/power densities(208 Wh·kg^(-1)at 214 W·kg^(-1);142 Wh·kg^(-1)at 8692 W·kg^(-1)),which holds great promise for large-scale energy storage.展开更多
文摘The removal of sulfur compounds(thiophene) from petroleum via extraction with ionic liquids was systematically studied.The ionic liquid[BMIM][PF_6]([BMIM]^+—1-butyl-3-methylimidazolium hexatiuorophosphate cation) was used to investigate its effect on thiophene removal.The test results showed that a higher temperature and a greater mass ratio of the ionic liquids versus the oil containing the sulfur compounds both helped to remove the thiophene from the feed oil.At a temperature of 60℃and an ionic liquid/feed oil mass ratio of 20%,the desulfurization rate could reach 52.39%, with the extraction time specified at 40 minutes.
基金financially supported by the National Nature Sciences foundation of China(No.20801013)the Innovation Foundation for Young Technological Talents of Fujian Province(No.2007F3050)+1 种基金the projectsponsored by SRF for ROCS,SEM(No.LXKQ0830)Fuzhou University(No.XRC-0723)
文摘In this paper,it was found that Ru（H_2bpp）_2（PF_6）2（H_2bpp = 2,6-bis（pyrazol-3-yl）pyridine） complex had excellent electrochemical activity at the carbon paste electrode in the buffer solution of Tris-HCl（pH 7.0） with a couple reversible redox peaks at 0.296 V and 0.348 V,respectively.Voltammetry was used to investigate the electrochemical behavior of Ru（H_2bpp）_2（PF_6）_2 and the interaction between Ru（H_2bpp）_2（PF_6）_2 and bovine serum albumin（BSA）.In the present of BSA,the oxidation peak current of Ru（H_2bpp）_2（PF_6）_2 complex was decreased linearly and the decrease of oxidation peak current of Ru（H_2bpp）_2（PF_6）_2 is proportional to BSA concentration from 0.1 to 2.5 mg/L with a detection limit 0.02 mg/L.
文摘A new active material for ECL sensor. Ru(phen)2(phen-NICH2Br)(PF6)2 has beendesigned and synthesized. its structure was confirmed by means of IR. MS and 'H NMR. Also.some of its properties such as electrochemstry. fluorescence and ECL are reported.
基金Supported by the Project of Hubei Provincial Department of Education(No.Q20144302 and Q20164302)the Natural Science Foundation of Hubei Province(No.2013CFA015)+1 种基金the Doctoral Scientific Research Foundation of Jingchu University of Technology(No.QDB201603)the Open Project Program of Hubei Key Laboratory of Drug Synthesis and Optimization,Jingchu University of Technology(No.OPP2016ZD02)
文摘Dicyanide building block cis-Fe（phen）2（CN）2 and [MnⅢ（salen）]（ClO4） have been used to design and synthesize a cyanide-bridged complex, resulting in a heterobimetallic one-dimensional（1D） zigzag chain complex 1, [cis-Fe（phen）2（CN）2Mn（salen）]（PF6）（phen =1,10-phenanthroline, salen=N,N-ethylenebis-（salicylideneaminato） dianion）. Single-crystal X-ray diffraction analysis shows complex 1 crystallizes in the monoclinic P2（1/c） space group and the asymmetric unit contains one [-NC-Fe（phen）2（μ-CN）-MnⅢ-（salen）-]＋ cation and one PF6- anion. In the cationic structure of 1, each FeⅡ（phen）2（CN）2 connects two [MnⅢ（salen）]＋ with two cyanide groups in a cis-conformation, and in turn each [MnⅢ（salen）]＋ unit links two FeⅡ（phen）2（CN）2 building blocks in a trans-conformation, resulting in a 1D [-NC-FeⅡ-CN-MnⅢ-]n chain. Furthermore, the electronic absorption spectra and electrochemical and magnetic properties of complex 1 have also been studied.
文摘A new ECL-active species. Ru (phen)_2 (dcbpy) (PF_6)_2. has been designed andsynthesized. its structure was confirmed by means of IR. ESI-MS and 2D NMR. Also. itsproperties of electrochemistry. fluorescence and ECL are reported. which have suggested a goodhope of being used in electrochemiluminescent immunoassay and nucleic acid hybridization.
基金financially supported by the National Natural Science Foundation of China(No.22279122)Shenzhen Science and Technology Program(No.JCYJ20220530162402005)+2 种基金the Research on High Power Flexible Battery in All Sea Depth(2020-XXXX-XX-246-00)the Research Fund Program of Hubei Key Laboratory of Resources and EcoEnvironment Geology(No.HBREGKFJJ-202314)and the Fundamental Research Funds for the Central Universities,South-Central Minzu University(No.CZQ21013)。
文摘Metallic zinc is an ideal anode material owing to its high theoretical capacity(819 mAh·g^(-1)),ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries(ZIBs).However,the practical application of current ZIBs is significantly restricted by irregular dendrite growth of zinc anode and the low working voltage(usually<2 V)of cathode materials.Herein,we report a high-voltage Zn-based dualion battery(DIB),which is constructed by a graphite cathode,a Zn anode,and 3 M LiPF_(6)in the ethyl methyl carbonate(EMC)electrolyte.Under the corrosion interaction of Li^(+)ions,Zn^(2+)can be easily dissolved from Zn anode into the electrolyte to enable dendrite-free Zn^(2+)plating/stripping at the anode.Moreover,an aqueous carboxymethyl cellulose(CMC)binder is employed to generate a robust cathode electrolyte interface(CEI)layer on the graphite cathode,which renders ultrafast PF_(6)^(-)-de-/intercalation into graphite.The resultant Zn-graphite DIB operates stably at a high cut off voltage of 3.2 V,corresponding to an average output voltage of 2.2 V.After 9000cycles at 5C,the high capacity retention of 95.9% can be achieved with~100% Coulomb efficiency.Based on the mass of cathode material,our Zn-graphite battery exhibits ultrafast rate capability(60 C,a discharge time of 44 s)and high energy/power densities(208 Wh·kg^(-1)at 214 W·kg^(-1);142 Wh·kg^(-1)at 8692 W·kg^(-1)),which holds great promise for large-scale energy storage.
