Formation of NiO nanoparticle-attached nanographitic flake layers deposited by pulsed electrophoretic deposition for ethanol electro-oxidation
Formation of NiO nanoparticle-attached nanographitic flake layers deposited by pulsed electrophoretic deposition for ethanol electro-oxidation
复制标题
DOI：
10.1016/j.jallcom.2016.12.136
复制
发表时间：
2017-03
影响因子：
6.2
通讯作者：
A. A. Daryakenari-A.;Davood Hosseini;Mohammad Hassan Mirfasih;A. Apostoluk;C. Müller;J. Delaunay
中科院分区：
文献类型：
--
作者：
A. A. Daryakenari-A.;Davood Hosseini;Mohammad Hassan Mirfasih;A. Apostoluk;C. Müller;J. Delaunay
摘要我们以前的工作表明，通过直流（DC）电泳沉积（EPD）过程中的NiO纳米颗粒-纳米石墨薄片复合材料的制造。该复合材料被用作具有低起始电压的乙醇电氧化催化剂层。本文提出了一种新的催化剂材料，通过脉冲EPD，它允许获得更高的效率时，相比，由直流EPD制备的催化剂层的乙醇电氧化。使用脉冲EPD制造的催化剂层的性能的增强背后的原因是低重量的NiO纳米颗粒在纳米石墨薄片上的选择性沉积，导致附聚的NiO纳米颗粒的沉积减少，因此乙醇电氧化的效率增强。
AbstractsOur previous work demonstrated the fabrication of the NiO nanoparticle-nanographitic flake composite through a direct current (DC) electrophoretic deposition (EPD) process. The composite was used as a catalyst layer having a low onset voltage in ethanol electro-oxidation. This paper presents a new catalyst material fabricated through pulsed EPD, which permitted to acquire a higher efficiency of ethanol electro-oxidation when compared to the catalyst layer fabricated by the DC EPD. The reason behind the enhancement of the performances of the catalyst layers fabricated using the pulsed EPD is the selective deposition of low-weight NiO nanoparticles on nanographitic flakes causing a reduction in the deposition of agglomerated NiO nanoparticles and therefore an enhancement in the efficiency of the ethanol electro-oxidation.