Ru-B catalysts were prepared by a impregnation-chemical reduction method.The effects of catalyst preparation conditions and reaction conditions on hydrogen generation from hydrolysis of sodium borohydride over Ru-B catalysts were investigated.The results showed that when the ratio of the active component precursor RuCl3·6H2O to the reducing agent NaBH4 was 1∶7 and the reduction temperature was 303 K,the prepared Ru-B catalyst exhibited the best performance for hydrogen generation from the hydrolysis of sodium borohydride.The hydrogen generation rate from hydrolysis of sodium borohydride over Ru-B catalyst reached 1740mL H2/(min·g) under the condition of 0.17g/L of the catalyst concentration,303K of the reaction temperature,0.22mol/L of the NaBH4 concentration,0.01mol/L of the NaOH concentration and 540r/min of stirring rate.It was found that the hydrogen generation rate from hydrolysis of sodium borohydride over Ru-B catalyst was linear with the amount of Ru-B catalyst.The calculated apparent activation energy of sodium borohydride hydrolysis over Ru-B catalyst was 23.58kJ/mol.
[1] Muir S S,Yao X D.Progress in sodium borohydride as ahydrogen storage material:development of hydrolysiscatalysts and reaction systems[J].Int J Hydrogen Energy,2011,36:5983-5987.
[2] 梁艳,王平,戴洪斌.硼氢化钠催化水解制氢[J].化学进展,2009,21(10):2220-2221.
[3] 蔡凡,沈晓晨,戴敏.CoB/C催化硼氢化钠水解制氢的性能[J].无机化学学报,2013,29(4):689-691.
[4] 孙海杰,陈凌霞,黄振旭,等.第四周期过渡金属催化硼氢化钠分解制氢研究[J].无机盐工业,2017,49(5):14-17.
[5] 孙海杰,黄振旭,王雅苹,等.非晶态合金Ru-B/ZrO2催化剂催化硼氢化钠水解制氢性能的研究[J].化工新型材料,2018,46(1):102-105.
[6] 赵万国,苏丽,周振宁,等.Pd/Co双金属纳米颗粒的制备及催化制氢性能[J].物理化学学报,2015,31(1):145-142.
[7] 周兴赟,李文绮,李文,等.Pt/Cu双金属纳米颗粒的制备及其催化制氢活性[J].化学通报,2015,78(3):237-241.
[8] Liang Y,Dai H B,Ma L P,et al.Hydrogenaton generation from sodium borohydride solution using a ruthenium supported on graphite catalyst[J].Int J Hydrogen Energy,2010,35(7):3023-3028.
[9] Su C C,Lu M C,Wang S L,et al.Ruthenium immobilized on Al2O3 pellets as a catalyst forhydrogen generation from hydrolysis and methanolysis of sodium borohydride[J].RSC Advances,2012,2(5):2073-2079.
[10] 彭淑鸽,高紧紧,郭永克,等.层状材料负载钌纳米簇及催化性能[J].河南科技大学学报:自然科学版,2011,32(1):5-7.
[11] 程杰,王新东.钌催化硼氢化钠水解制氢的研究[J].电源技术,2008,32(9):577-579.
[12] Eom K,Cho K,Kwon H.Effects of electroless depositionconditions on microstructures of cobaltephosphorouscatalysts and their hydrogen generation properties inalkaline sodium borohydride solution[J].J Power Sources,2008,180:484-490.
[13] 孙海杰,陈凌霞,黄振旭,等.Ru-Zn催化剂在苯选择加氢制环己烯反应中的粒径效应[J].高等学校化学学报,2015,36(10):1969-1976.
[14] 刘吉平,吴光波.硼氢化钠的制备及水解制氢[J].化工进展,2009,28(s):208-213.
基金资助
河南省科技攻关项目(192102210139);河南省高等学校重点科研项目(18A150018);郑州师范学院环境催化科研创新团队(702010);郑州师范学院大学生创新实验计划项目(DCZ2017014)
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