Fe-OMC復(fù)合材料的有機(jī)自組裝模板法制備及其對(duì)亞硝酸鈉的電催化性能研究
發(fā)布時(shí)間:2018-03-09 12:43
本文選題:軟模板法 切入點(diǎn):有機(jī)-有機(jī)自組裝 出處:《西北師范大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期 論文類型:期刊論文
【摘要】:借助有機(jī)自組裝一步軟模板法制備了鐵納米負(fù)載的有序介孔碳復(fù)合材料(Fe-OMC),用TEM、XRD和電化學(xué)技術(shù)對(duì)復(fù)合材料的結(jié)構(gòu)、形態(tài)、組成等進(jìn)行了表征,利用電化學(xué)技術(shù)研究了目標(biāo)分子NaNO_2在Fe-OMC修飾電極表面的電子轉(zhuǎn)移過程.界面電荷轉(zhuǎn)移、界面電催化相關(guān)電化學(xué)研究發(fā)現(xiàn),該復(fù)合材料修飾電極能夠有效降低NaNO_2的過電位,對(duì)NaNO_2表現(xiàn)出良好的電催化氧化性能,其速率常數(shù)為52.51L·mol~(-1)·s~(-1),約為裸電極的1000多倍,有望將其用于NaNO_2的電化學(xué)催化及分析傳感研究.
[Abstract]:The ordered mesoporous carbon composites (Fe-OMCs) supported on iron nanoparticles were prepared by organic self-assembly one-step soft template method. The structure, morphology and composition of the composites were characterized by TEM XRD and electrochemical techniques. The electron transfer process of target molecule NaNO_2 on the surface of Fe-OMC modified electrode was studied by electrochemical technique. The results of interfacial charge transfer and interfacial electrocatalytic correlation electrochemical study showed that the composite modified electrode could effectively reduce the overpotential of NaNO_2. The electrocatalytic oxidation of NaNO_2 shows good performance, its rate constant is 52.51L 路mol / mol ~ (-1)) 路sbl ~ (-1), which is about 1 000 times of bare electrode. It is expected to be used in the electrochemical catalysis and analytical sensing of NaNO_2.
【作者單位】: 西北師范大學(xué)化學(xué)化工學(xué)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(21665023)
【分類號(hào)】:O646;TB33
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