CIESC Journal ›› 2008, Vol. 59 ›› Issue (S1): 15-19.
Previous Articles Next Articles
TU Xiaohua;CHU Youqun;ZHAO Fengming;HUANG Xiangyue;MA Chun’an
Online:
Published:
屠晓华;褚有群;赵峰鸣;黄祥岳;马淳安
Abstract:
The electrochemical behavior of m-NO2C6 H4SO3 Na on Cu electrode is investigated in DMF(TBAP),H2O and DMF/H2O(TBAP) mediaThe working electrode was a Cu electrode,the auxiliary electrode was a large area platinum wire,and the reference electrode was a saturated calomel electrodeIt was shown that the reaction of m-NO2C6H4SO3Na on Cu electrode would undergo two steps in which ArNO2/ArNO-2·was a reversible process controlled by the diffusion of m-NO2C6H4 SO3 Na in aprotic mediumIn protic medium,the electrochemical reduction of m-NO2C6H4SO3Na would undergo two steps of oxidation-reduction reaction of ArNO2/ArNO and ArNO/ArNHOHWhile in mixed medium,due to the hindrance of protonation by DMF,m-NO2C6H4SO3Na was firstly reduced to ArNO-2· and further reduced to ArNHOHThese results could be interpreted by the calculation of qauntum
Key words: 间硝基苯磺酸钠, 铜电极, 质子惰性介质, 质子介质, 混合介质, 量化计算
间硝基苯磺酸钠,
摘要:
研究了铜电极上间硝基苯磺酸钠在含有四丁基高氯酸铵(TBAP)电解质的质子惰性介质(DMF)、质子介质(H2O)及混合介质(DMF/H2O)中的电化学行为。结果表明:在质子惰性介质中,间硝基苯磺酸钠分步连续地被还原为ArNO-2·和[ArNO2]2-·阴离子自由基;其中ArNO2/ArNO-2·为扩散控制的单电子转移可逆氧化还原反应。在水溶液中,间硝基苯磺酸钠经历了ArNO2/ArNO和ArNO/ArNHOH反应。而在混合溶剂中,由于DMF的存在阻碍了硝基的质子化进程,间硝基苯磺酸钠经历了ArNO2/ArNO-2·和ArNO-2·/ArNHOH反应。通过量化计算进一步证实了上述实验结果。
关键词: 间硝基苯磺酸钠, 铜电极, 质子惰性介质, 质子介质, 混合介质, 量化计算
TU Xiaohua, CHU Youqun, ZHAO Fengming, HUANG Xiangyue, MA Chun’an. Electrochemical behavior of m-NO2 C6 H4 SO3 Na onCu electrode in different media[J]. CIESC Journal, 2008, 59(S1): 15-19.
屠晓华, 褚有群, 赵峰鸣, 黄祥岳, 马淳安. 不同介质中间硝基苯磺酸钠的电化学行为 [J]. 化工学报, 2008, 59(S1): 15-19.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: https://hgxb.cip.com.cn/EN/
https://hgxb.cip.com.cn/EN/Y2008/V59/IS1/15