材料科学
石墨烯
催化作用
氧化物
化学工程
酞菁
复合数
氢氟酸
热液循环
剥脱关节
纳米技术
复合材料
有机化学
冶金
化学
工程类
作者
Qihui Ding,Chengyue Ji,Qian Shan,Changchun Yang,Wei Wu
标识
DOI:10.1016/j.mtcomm.2023.107012
摘要
In this paper, Ti3C2Tx MXene was successfully prepared by a mild and environment-friendly low-temperature hydrothermal method. On this basis, the compsites FePc-M-rGO consisting of iron phthalocyanine (FePc), Ti3C2Tx MXene and reduced graphene oxide (rGO) were prepared through simple mixing and used as catalysts for oxygen reduction reaction (ORR). The materials were characterized by SEM, XRD and other methods. The effects of raw material ratio, hydrochloric acid concentration, reaction temperature and reaction time on the properties of Ti3C2Tx were studied in detail. Compared with hydrofluoric acid (HF) etching method, the Ti3C2Tx prepared by low-temperature hydrothermal method has larger layer spacing, more complete crystal structure, larger specific surface area and better conductivity. The influences of different ratios of each component of FePc-M-rGO on the ORR catalytic performances were investigated. Mainly attributed to the improvement of self stacking and uniform adhesion of FePc between Ti3C2Tx layer and graphene nanosheets, the optimized composite material has better ORR activity than commercially available Pt-C catalysts and has good application prospects. This work provides a new approach for the rapid and effective preparation of Ti3C2Tx Mxene, and provides new ideas for the design of non-noble metal catalysts for ORR.
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