• 文献标题:   High-performance Cu nanoparticles/three-dimensional graphene/Ni foam hybrid for catalytic and sensing applications
  • 文献类型:   Article
  • 作  者:   ZHU L, GUO XL, LIU YY, CHEN ZT, ZHANG WJ, YIN KB, LI L, ZHANG Y, WANG ZM, SUN LT, ZHAO YH
  • 作者关键词:   cu nanoparticles/threedimensional graphene/ni foam cu nps/3dgr/nif, chemical vapor deposition cvd, galvanic displacement reaction
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   Southeast Univ
  • 被引频次:   2
  • DOI:   10.1088/1361-6528/aaaac6
  • 出版年:   2018

▎ 摘  要

A novel hybrid of Cu nanoparticles/three-dimensional graphene/Ni foam ( Cu NPs/3DGr/NiF) was prepared by chemical vapor deposition, followed by a galvanic displacement reaction in Ni and Cu-ion-containing salt solution through a one-step reaction. The as-prepared Cu NPs/3DGr/NiF hybrid is uniform, stable, recyclable and exhibits an extraordinarily high catalytic efficiency for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with a reduction rate constant K = 0.056 15 s(-1), required time similar to 30 s and excellent sensing properties for the non-enzymatic amperometric hydrogen peroxide (H2O2) with a linear range similar to 50 mu M-9.65 mM, response time similar to 3 s, detection limit similar to 1 mu M. The results indicate that the as-prepared Cu NPs/3DGr/NiF hybrid can be used to replace expensive noble metals in catalysis and sensing applications.