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Pt-M bimetallic nanoparticles (M = Ni, Cu, Er) supported on metal organic framework-derived N-doped nanostructured carbon for hydrogen evolution and oxygen evolution reaction
Journal of Power Sources ( IF 9.2 ) Pub Date : 2018-09-13 , DOI: 10.1016/j.jpowsour.2018.09.006
Muhammad Nadeem , Ghulam Yasin , Moazzam H. Bhatti , Mazhar Mehmood , Muhammad Arif , Liming Dai

The manufacturing of bimetallic durable and efficient electrocatalyst with the support of N-doped porous carbon for hydrogen evolution reaction and oxygen evolution reaction is extremely important for their long-term operation and wide applications. N-doped porous nanostructured carbon material with excellent permanent porosity and high surface area is produced through pyrolysis of Zn-MOF in inert atmosphere that further utilized as a support for the preparation of three bimetallic composites [email protected], [email protected] and [email protected] It is found that [email protected] with less than 10% Pt showed the same over potential (- 42 mV) for HER as that of commercial 20%Pt/C at a current density 10 mAcm−2 in basic solution. The performance of [email protected] in terms of stability and efficiency is good and comparable with commercial 20%Pt/C for HER and with RuO2 for OER. The best of three has been analyzed for long term stability and durability which is stable up to nine hours with little variation of current. The active sites developed by N-doping in nanostructured carbon material along with alloying effect of second metal with Pt produced good results for HER and OER with less than 10% Pt.



中文翻译:

Pt-M双金属纳米颗粒(M = Ni,Cu,Er)负载在金属有机骨架衍生的N掺杂纳米结构碳上,用于氢释放和氧释放反应

以N掺杂的多孔碳为载体的氢析出反应和氧析出反应的制备双金属耐用高效电催化剂,对于它们的长期运行和广泛的应用极为重要。通过在惰性气氛中热解Zn-MOF,制得具有优异的永久孔隙率和高表面积的N掺杂纳米结构碳材料,该材料进一步用作制备三种双金属复合材料的载体[受电子邮件保护],[受电子邮件保护]和[发现具有10%Pt的[受电子邮件保护的]在电流密度为10 mAcm -2时显示出与商用20%Pt / C相同的HER过电位(-42 mV)。在基本解决方案中。就稳定性和效率而言,[受电子邮件保护]的性能良好,可以与商业用20%Pt / C的HER和RuO 2的OER媲美。已对三者中的最佳者进行了长期稳定性和耐用性的分析,该稳定性可在长达9小时的时间内保持稳定,并且电流变化很小。纳米结构碳材料中通过N掺杂形成的活性位点以及第二金属与Pt的合金化作用对于Pt小于10%的HER和OER产生了良好的结果。

更新日期:2018-09-13
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