One pot solvothermal synthesis of ZnPc nanotube and its composite with RGO: A high performance ORR catalyst in alkaline medium
One pot solvothermal synthesis of ZnPc nanotube and its composite with RGO: A high performance ORR catalyst in alkaline medium
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DOI：
10.1016/j.apsusc.2018.01.155
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发表时间：
2018-08
影响因子：
6.7
通讯作者：
M. Mukherjee;M. Samanta;U. Ghorai;S. Murmu;G. P. Das;K. Chattopadhyay
中科院分区：
文献类型：
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作者：
M. Mukherjee;M. Samanta;U. Ghorai;S. Murmu;G. P. Das;K. Chattopadhyay
近年来，绿色环境下的可持续能源正受到广泛的研究。为了寻求一种高效的燃料电池氧还原反应（ORR）电催化剂，虽然纯铂（Pt）是无可争议的主力，但由于价格昂贵、储量有限等因素，研究人员开始寻找非Pt替代物作为催化剂。金属基酞菁是一种很有前景的燃料电池氧化还原电催化剂。在此，我们的工作证明了邻苯二甲酸锌（ZnPc）纳米结构及其与还原氧化石墨烯（RGO）的复合物的合成和ORR性能。电化学测试结果表明，该复合材料在碱性介质中的极限电流密度、起始电位和半波电位等方面均优于纯纳米结构。这主要归因于ZnPc与RGO之间的π-π相互作用以及石墨烯的新性质。ZnPc/graphene的优异性能使其成为一种新的适用于不同能源材料的电催化剂。
In recent years, sustainable energy resources in green environment are being extensively investigated. In pursuit of an efficient electrocatalyst for oxygen reduction reaction (ORR) in fuel cells, though pure platinum (Pt) is the unchallenged workhorse but high price, limited reserves and other factors has triggered the researcher to look for non Pt alternatives as catalysts. Metal based Phthalocyanine is one such prospective electrocatalyst for ORR in fuel cell. Herein, our work demonstrates the synthesis and ORR performances of Zinc Phthalocyanine (ZnPc) nanostructure and its composites with reduced graphene oxide (RGO). Electrochemical measurements show that the composite material exhibits better performances than pristine nanostructure in terms of limiting current density, onset potential, and half wave potential in alkaline medium. The improved electrochemical activity is attributed to the π–π interaction between ZnPc and RGO and also to the novel properties of graphene. The fascinating performances of ZnPc/graphene makes it a new viable electrocatalyst for different energy materials.