科学研究

静电纺丝制备Pd/γ-Al2O3纳米纤维与表征

展开
  • 南通大学机械工程学院,南通 226019
沈威钢(1995-),男,硕士研究生,主要从事燃料电池及新材料研究。

收稿日期: 2019-05-20

  修回日期: 2020-07-08

  网络出版日期: 2020-10-20

基金资助

江苏高校优势学科建设工程资助项目(苏政办发[2018]87号);江苏省重点研发计划(产业前瞻与共性关键技术)项目(BE2018093);南通市应用研究计划项目(JC2018115)

Preparation and characterization of Pd/γ-Al2O3 nanofiber by electrospinning

Expand
  • School of Mechanical Engineering,Nantong University,Nantong 226019

Received date: 2019-05-20

  Revised date: 2020-07-08

  Online published: 2020-10-20

摘要

采用静电纺丝技术制备了γ-Al2O3负载纳米Pd的纳米纤维Pd/γ-Al2O3。实验考察了不同氯化铝和氯化钯溶液浓度对Pd/γ-Al2O3纳米纤维直径和形貌的影响,采用扫描电镜、X射线粉末衍射、傅里叶红外变换光谱和能量色散谱分析等测试技术对Pd/γ-Al2O3纳米纤维进行表征。结果表明,制备的纳米纤维的丝径尺寸较为均匀,平均直径为230nm;Pd纳米粒子均匀分布在纤维表面,其平均直径为70nm;氧化铝主要以γ-Al2O3形式存在;随着氯化铝溶液浓度的增加,纤维直径随之增大,而负载纤维表面的Pd纳米粒子的直径随之减小;随着氯化钯溶液浓度的增加,纤维直径也会增大。

本文引用格式

沈威钢, 朱昱, 倪红军, 朱杨杨 . 静电纺丝制备Pd/γ-Al2O3纳米纤维与表征[J]. 化工新型材料, 2020 , 48(9) : 174 -178 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.09.038

Abstract

Pd/γ-Al2O3 loaded with γ-Al2O3 nano-palladium nanofiber was prepared by electrospinning technique.The effects of different concentrations of aluminum chloride and palladium chloride on the diameter and morphology of Pd/γ-Al2O3 were investigated.Pd/γ-Al2O3 were characterized by SEM,XRD,FT-IR and EDS.The results shown that the prepared nanofibers had a relatively uniform wire diameter with an average diameter of 230nm.Pd nanoparticles were evenly distributed on the fiber surface with an average diameter of 70nm.alumina was mainly presented in the form of γ-Al2O3.As the concentration increased,the fiber diameter increased,and the diameter of the Pd nanoparticles on the surface of the supported fiber decreased.As the concentration of the palladium chloride solution increased,the fiber diameter also increased.

参考文献

[1] Agarwal S,Greiner A,Wendorff J H.Functional materials by electrospinning of polymers[J].Progress in Polymer Science,2013,38(6):963-991.
[2] Chen X,Wu K,Sun Y,et al.Highly sensitive electrochemical sensor for sunset yellow based on the enhancement effect of alumina microfibers[J].Sensors & Actuators B Chemical,2013,185(8):582-586.
[3] Milanović P,Dimitrijević M,Heinemann R J,et al.Preparation of low cost alumina nanofibers via electrospinning of aluminium chloride hydroxide/poly (vinyl alcohol) solution[J].Ceramics International,2013,39(2):2131-2134.
[4] Saharudin M S,Jumahat A,KaharAmir ZA,et al.The influence of alumina filler on impact properties of short glass fiber reinforced epoxy[J].Applied Mechanics & Materials,2013,393:88-93.
[5] Hong J L,Park J H.Effect of hydrophobic modification on carbon dioxide absorption using porous alumina (Al2O3) hollow fiber membrane contactor[J].Journal of Membrane Science,2016,518:79-87.
[6] Tang X,Yu Y.Electrospinning preparation and characterization of alumina nanofibers with high aspect ratio[J].Ceramics International,2015,41(8):9232-9238.
[7] Bayat N,Rezaei M,Meshkani F.Hydrogen and carbon nanofibers synthesis by methane decomposition over Ni-Pd/Al2O3,catalyst[J].International Journal of Hydrogen Energy,2016,41(12):5494-5503.
[8] Xu W,Zhan Z,Di L,et al.Enhanced activity for CO oxidation over Pd/Al2O3 catalysts prepared by atmospheric-pressure cold plasma[J].Catalysis Today,2015,256:148-152.
[9] Wang J,Li J,Wang Y,et al.In situ preparation of Pd/Al2O3-SiO2,composite microspheres by combining a sol-gel process and precipitation process in a microchannel[J].Chemical Engineering Journal,2014,236(2):293-299.
[10] Liu P,Zhu Y,Ma J,et al.Preparation of continuous porous alumina nanofibers with hollow structure by single capillary electrospinning[J].Colloids and Surfaces A Physicochemical and Engineering Aspects,2013,436(35):489-494.
[11] Zhong S,Textile D O.Preparation of carbon nanofiber supported palladium catalyst and its catalytic performance[J].Journal of Zhejiang University,2015,37(12):646-648.
[12] Yu J X,Liu T Q.Preparation of chitosan grafting acrylic acid supported palladium fibrous catalyst and its application in hydrogenation[J].Polymer Materials Science & Engineering,2011,620-622(8):537-540.
[13] Demir M M,And M A G,Menceloglu Y Z,et al.Palladium nanoparticles by electrospinning from poly(acrylonitrile-co-acrylic acid)-PdCl2solutions.relations between preparation conditions,particle size,and catalytic activity[J].Macromolecules,2004,37(5):1787-1792.
[14] Moussa S,Siamaki A R,Gupton B F,et al.Pd-partially reduced graphene oxide catalysts (Pd/PRGO):laser synthesis of Pd nanoparticles supported on PRGO nanosheets for carbon-carbon cross coupling reactions[J].ACS Catalysis,2012,2(1):145-154.
[15] Hayati,Bailey,A I,et al.Investigations into the mechanisms of electrohydrodynamic spraying of liquids.Ⅰ:effect of electric field and the environment on pendant drops and factors affecting the formation of stable jets and atomization[J].Journal of Colloid & Interface Science,1987,117(1):222-230.
[16] Katti D S,Robinson K W,Ko F K,et al.Bioresorbable nanofiber-based systems for wound healing and drug delivery:optimization of fabrication parameters[J].Journal of Biomedical Materials Research Part B Applied Biomaterials,2004,70B(2):286-296.
Options
文章导航

/