陈煜,侯广亚,唐谊平,伍廉奎,曹华珍,郑国渠.Ni-Ti-O纳米片/泡沫镍复合电极的显微结构及其电化学性能[J].稀有金属材料与工程,2018,47(10):3134~3140.[Chen Yu,Hou Guangya,Tang Yiping,Wu Liankui,Cao Huazhen,Zheng Guoqu.Microstructure and Electrochemical Properties of Ni-Ti-O Nanosheets Supported on Ni Foam[J].Rare Metal Materials and Engineering,2018,47(10):3134~3140.]
Ni-Ti-O纳米片/泡沫镍复合电极的显微结构及其电化学性能
投稿时间:2016-12-26  修订日期:2017-04-03
中文关键词:  Ni-Ti-O纳米片  微观组织  水热合成  甲醇催化  电容
基金项目:国家自然科学基金(51101140)和浙江省自然科学基金(LY16E010004)资助。
中文摘要:
      采用了水热合成和热扩渗结合的方法在三维多孔泡沫镍支架上制备了Ni-Ti-O纳米片层。通过扫描电镜(SEM)、X射线衍射(XRD)、透射电镜(TEM)、高分辨透射电镜(HRTEM)对泡沫镍支架上NiO和Ni-Ti-O纳米结构的微观形貌及物相进行了观察表征和物相分析。用循环伏安法和充放电性能测试探究了复合电极对甲醇的催化氧化性能及其电容性能。结果表明:泡沫镍上生长的Ni-Ti-O纳米片物相组成为NiO和TiO,并且为多晶形态;Ti的渗入会使得NiO纳米片中形成氧空位,并和Ni产生协同作用,使得Ni-Ti-O纳米片/泡沫镍电极的对甲醇氧化的电催化性能优于Ni(OH)2/泡沫镍和NiO/泡沫镍电极;泡沫镍和钛粉质量比(RNi/Ti)为1:24,在电流密度为5 mA?cm-2时,Ni-Ti-O电极的面积比电容值为 2.15 F?cm-2,是纳米Ni(OH)2/泡沫镍电极的3.2倍(0.67 F?cm-2)。
Microstructure and Electrochemical Properties of Ni-Ti-O Nanosheets Supported on Ni Foam
英文关键词:Ni-Ti-O nanosheet  microstructure  hydrothermal synthesis  methanol catalysis  capacitance property
英文摘要:
      Ni-Ti-O nanosheets were fabricated on 3D porous nickel foam by hydrothermal synthesis and thermal diffusion metallizing. Scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) were used to investigate the micro morphology and phase of NiO and Ni-Ti-O nanostructure. The methanol catalytsis performance and capacitance properties of these electrodes were investigated by cyclic voltammetry and charge- discharge tests. The results show that the phase of Ni-Ti-O nanosheets fabricated on 3D porous nickel foam are NiO and TiO with polycrystalline form; The permeation of Ti result in oxygen vacancies in NiO nanosheets and produce synergistic effect with Ni, which makes that the electrocatalytic property of methanol oxidation of Ni-Ti-O nanosheet electrode is much larger than that of Ni(OH)2 and NiO electrode; When the the mass ratio of Ni foam and Ti powder (RNi/Ti) is 1:24, at a current density of 5 mA?cm-2, the area specific capacitance of Ni-Ti-O electrode is 2.15 F?cm-2, which is 3 times more than that of Ni(OH)2/Ni foam electrode (0.67 F?cm-2).
作者单位E-mail
陈煜 浙江工业大学 554535616@qq.com 
侯广亚 浙江工业大学 houguangya@zjut.edu.cn 
唐谊平 浙江工业大学  
伍廉奎 浙江工业大学  
曹华珍 浙江工业大学  
郑国渠 浙江工业大学  
摘要点击次数: 19
全文下载次数: 11
查看全文  查看/发表评论  下载PDF阅读器
关闭