Mo2C@C纳米棒的制备及氧还原性能研究  

Synthesis of Mo2C@C Nanorods and Its Oxygen Reduction Performance

作　　者：刁金香[1] 邱雨 郭晓辉[2] DIAO Jin-xiang;QIU Yu;GUO Xiao-hui(Department of Aeronautical Engineering,Aeronautical Polytechnic Institute,Xi'an 710089,China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education),College of Chemistry & Materials Science,Northwest University,Xi’an 710069,China)

机构地区：[1]西安航空职业技术学院航空材料工程学院,西安710089 [2]西北大学合成与天然功能分子化学教育部重点实验室/化学与材料科学学院,西安710069

出　　处：《人工晶体学报》2019年第8期1544-1548,共5页Journal of Synthetic Crystals

基　　金：国家科学自然基金(21301140);新世纪优秀人才(NCET-13-0953);西航职院(18XHZH-019)

摘　　要：碳化钼(Mo2C)已在许多催化反应中被证明具有类Pt金属的特性,在取代贵金属基电催化剂方面具有很好的应用前景。但是,由于催化剂稳定性差,催化性能不能达到工业标准。在此,MoO3-EDA前躯体作模板,丹宁酸(TA)作为碳源,原位合成路线以获得作为氧还原反应催化剂的Mo2C@C纳米棒。有趣的是,SEM和TEM结果显示在Mo2C上覆盖着无定形碳和形成了Mo2C@C纳米棒。另外,与MO2C相比,Mo2C@C纳米棒表现出较高的的氧还原催化活性和的稳定性。Molybdenum carbide(Mo 2C) has been proven Pt-like features in many catalytic reactions, and shows excellent potentials to substitute noble metal-based electrocatalysts. However, the catalytic performances cannot be improved to the industrial standard due to the low stability of catalysts. Herein, an in-situ synthesis route to obtain the Mo 2C@C nanorod as oxygen reduction reaction catalyst was reported. The MoO 3-EDA precursor acts as the templates and tannic acid (TA) acts as carbon source. Interestingly, SEM and TEM results show that amorphous carbon coated on Mo 2C and formed Mo 2C@C nanorods. Additionally, Mo 2C@C nanorods presents enhanced catalytic activity and stability for ORR compared with Mo 2C.

关 键 词：Mo2C@C纳米棒 氧还原反应 电催化剂 稳定性 

分 类 号：O643.36[理学—物理化学] TQ116.14[理学—化学]