NiPt/Ti2O3纳米催化剂的制备及其催化水合肼制氢性能研究

Preparation of NiPt/Ti2O3 nanocatalyst and its catalytic performance for hydrogen production from hydrazine hydrate

  • 摘要: 本研究利用H2还原制备Ti2O3载体后,通过湿化学浸渍-还原法制备NiPt/Ti2O3纳米催化剂进行催化水合肼研究。研究表明,在催化剂的制备过程中,Ni和Pt之间形成了一种合金,该合金的形成使催化剂的催化活性升高,Ti2O3与NiPt合金的相互作用提升了催化剂催化性能和循环稳定性。Ni5Pt5/Ti2O3催化剂催化水合肼产氢的反应的TOF值为1076.1 h−1

     

    Abstract: Hydrazine hydrate is the most promising hydrogen storage material with a hydrogen content of 8.0%. In this paper, after Ti2O3 support was prepared by H2 reduction, NiPt/Ti2O3 nanocatalyst was prepared by wet chemistry impregnation reduction method and used to catalyze hydrazine hydrate. The research shows that an alloy is formed between Ni and Pt during the preparation of the catalyst, and the formation of the alloy increases the catalytic activity of the catalyst. The interaction between Ti2O3 and NiPt alloy is helpful for the catalytic performance and cyclic stability of the catalyst. The TOF value of the Ni5Pt5/Ti2O3 catalyst for hydrogen production from hydrazine hydrate is 1076.1 h−1, which is superior to the reported catalyst performance.

     

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