全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电化学  2006 

苯甲醛在离子液体中的电化学行为

, PP. 80-84

Keywords: 苯甲醛,离子液体,循环伏安

Full-Text   Cite this paper   Add to My Lib

Abstract:

应用线性扫描循环伏安法、方波循环伏安法和计时电量法测定苯甲醛在3种离子液体C4MIMBF4、C6MIMBF4和C8MIMBF4中的电化学行为.实验表明,在C4MIIVIBF4离子液体中苯甲醛于GC电极上的还原包含两个连续、不可逆单电子过程,对应的方波I~E曲线峰电位Ep为-1.39V和-1.69V,估算的扩散系数分别为D1=1.5×10-8cm2/s和D2=1.3×10-8cm2/s.而在C6MIMBF4和C8MIMBF4离子液体中,则苯甲醛于GC电极仅显示一个电流峰,这可能是因为C4MIMBF4的碱性较C6MIMBF4和C8MIMBF4弱的缘故;而电流的衰减时间亦依C4MIMBF4,C6MIMBF4,C8MIMBF4,次序增长,并会导致更慢的异相动力学过程.

References

[1]  LI Fu-W e i(李福伟),XUO L in-Fe i(肖林飞),X IAChun-Gu(夏春谷).Synthesis of cyc ilc carbonates cat-alyzed by ion ic liqu id m ed iated ZnB r2catalytic system[J].Chem.J.Ch inese Un iversities,2005,26(2):343.
[2]  Arm srong D W,He L,L iu Y S.Exam ination of ion ic liq-u ids and the ir interaction w ith molecu les,when used asstationary phases in gas chrom atography[J].Anal.Chem.,1999,71(17):3 873.
[3]  L iu Jing-fu(刘景富),Ch i Yu-guang(迟玉广),JiangGu i-b in(江桂斌),et al.Ion ic liqu id-based liqu id-phase m icroextraction,a new samp le enrichm ent proce-dure for liqu id chrom atography[J].J.Chrom atographyA,2004,1026:143.
[4]  Kawano R,W atanabe M.Equ ilibrium potentials andcharge transport of an I-/I3-redox coup le in ion ic liq-u id[J].Chem.Commun.2003,3:330.
[5]  Haffad D,Kam eswari U,BettaharM M,et al.Reductionof benzaldehyde on m etal oxides[J].J.Caw.,1997,172:85.
[6]  Kazem ifatd A G,Moore D E,Mohamm ad i A.Polaro-graph ic determ ination of benzaldehyde in benzyl alcoholand sod ium d ic lofenac in jection formu lations[J].Jour-nal of Pharm aceutical and B iom ed ical Analysis,2002,30:257,
[7]  Herrero A,O rtiz M C.Solving the interference due tocoup led reactions in the polarograph ic determ ination ofbenzaldehyde w ith soft m edelling[J].J.E lectroanal.Chem.,1997,432:223.
[8]  Vann icel M A,Poond i D.The effect of m etal-supportinteractions on the hydrogenation of benzaldehyde andbenzyl alcohol[J],J.Catal.,1997,169:166-175.
[9]  Doherty A D,B rooks C A.E lectrosynthesis in Room-temperature ion ic liqu ids:Benzaldehyde reduction[J].E lectroch im ica Acta,2004,49:3821.
[10]  B rooks C A,Dohery A P.E lectrogenerated rad ical an i-ons in room-temperature ion ic liqu ids[J].J.Phys.Chem.B,2005,109(13):6267.
[11]  Bonhote P,Ana-Pau la D,Papageorgiou N,et al.Hydro-phob ic,h ighly conductive amb ient-temperature moltensalts[J].Inorg.Chem.,1996,35(5):1 168.
[12]  Holbrey J D,Seddon K R.The phase behaviour of 1-al-kyl 3-m ethylim idazolium tetrafluoroborates Ion ic liq-u ids and ion ic liqu id crystals[J].J.Chem.Soc.Dal-ton.Trans.,1999,999(13):2133.
[13]  L i Ru xiong(李汝雄).Synthesis and App lications ofI-on ic L iqu ids-green Solvent(绿色溶剂一离子液体的合成与应用)[M].Be ijing:Chem ical Indus仰Press,2004.27.
[14]  Sweeny B K,Peters D G.Cyc lic voltamm etric study ofthe catalytic behavior of n ickel(I)salen eletrogenerat-ed at a glassy carbon electrode in an ion ic liqu id(1-bu-tyl-3-m ethylim idazolium tetrafluoroborate BM IMBF4[J].E lectrochem.Commun.,2001,3(12);712.
[15]  PU Guo-gang(蒲国刚),CHEN X in-sheng(陈新生),WANG Er-kang(汪尔康).The investigations ofsquare wave voltamm etry and cyc lic square wave volta-mm etry w ith m icrocomputer-based electrochem ical sys-tem[J].Ch inese Journal of App lied Chem istry(inCh inese),1987,4(6):31.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133