热解二氧化钛/聚苯胺制备高效非贵金属氧还原电催化剂

引用本文: 邹志娟, 程皓, 王靖宇, 韩喜江. 热解二氧化钛/聚苯胺制备高效非贵金属氧还原电催化剂[J]. 催化学报, 2015, 36(3): 414-424. doi: 10.1016/S1872-2067(14)60223-0 shu

Citation: Zhijuan Zou, Hao Cheng, Jingyu Wang, Xijiang Han. Pyrolyzed titanium dioxide/polyaniline as an efficient non-noble metal electrocatalyst for oxygen reduction reaction[J]. Chinese Journal of Catalysis, 2015, 36(3): 414-424. doi: 10.1016/S1872-2067(14)60223-0 shu

热解二氧化钛/聚苯胺制备高效非贵金属氧还原电催化剂

邹志娟 ^a, ,
程皓 ^a, ,
王靖宇 ^{a,b,
,} ,
韩喜江 ^{a,
,}

通讯作者: 王靖宇. 韩喜江; 王靖宇. 韩喜江

基金项目:
国家自然科学基金(21001037, 21071037, 91122002) (21001037, 21071037, 91122002)

哈尔滨技术创新人才专项基金(2013RFLXJ011) (2013RFLXJ011)

华中科技大学引进人才科研基金(2014036). (2014036)

摘要: 为了克服传统Pt系催化剂价格昂贵、稳定性差的缺点, 采用热解新型TiO₂/聚苯胺(PANI)复合物的方法合成了TiO₂/C催化剂.用扫描电子显微镜、X射线光电子能谱、X射线衍射、傅里叶变换红外光谱、拉曼光谱、透射电子显微镜、循环伏安法和线性扫描伏安法等方法研究了热处理和PANI复合比例对复合物的形貌、成键、晶相组成及氧还原性能的影响.结果表明, PANI与TiO₂间存在相互作用, 可以抑制TiO₂的团聚和锐钛矿向金红石的转变.热处理制得TiO₂/C的氧还原活性随着PANI载体含量增加先升高后降低, PANI和TiO₂质量比为35/100时, 催化剂的氧还原活性最高.同时, 循环伏安和时间-电流曲线测试表明, 已制备的复合材料在催化氧还原反应进行时具有较好的稳定性.

关键词:

English

Pyrolyzed titanium dioxide/polyaniline as an efficient non-noble metal electrocatalyst for oxygen reduction reaction

Zhijuan Zou ^a, ,
Hao Cheng ^a, ,
Jingyu Wang ^{a,b,
,} ,
Xijiang Han ^{a,
,}

1.
a Department of Chemistry, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China;

Corresponding author: 王靖宇. 韩喜江; 王靖宇. 韩喜江

Received Date: 13 July 2014
Available Online: 20 March 2015
Fund Project:
国家自然科学基金(21001037, 21071037, 91122002)

哈尔滨技术创新人才专项基金(2013RFLXJ011)

华中科技大学引进人才科研基金(2014036).

Abstract: To overcome the prohibitive cost and poor durability of conventional Pt-based catalysts, TiO₂/C was prepared by pyrolyzing a novel titanium dioxide/polyaniline (TiO₂/PANI) composite. The prepared catalysts were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, cyclic voltammetry (CV), and linear sweep voltammetry. Interaction between PANI and TiO₂ was found to inhibit the aggregation of TiO₂ and its transformation from anatase to rutile. The catalytic activity of the TiO₂/C first increased with increasing PANI content and then decreased; the optimum was achieved when the PANI/TiO₂ mass ratio was 35/100. CV and i-t curves showed that the prepared composite has a good catalytic stability.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

热解二氧化钛/聚苯胺制备高效非贵金属氧还原电催化剂

通讯作者: 王靖宇. 韩喜江; 王靖宇. 韩喜江

English

Pyrolyzed titanium dioxide/polyaniline as an efficient non-noble metal electrocatalyst for oxygen reduction reaction

Corresponding author: 王靖宇. 韩喜江; 王靖宇. 韩喜江

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

热解二氧化钛/聚苯胺制备高效非贵金属氧还原电催化剂

通讯作者: 王靖宇. 韩喜江; 王靖宇. 韩喜江

English

Pyrolyzed titanium dioxide/polyaniline as an efficient non-noble metal electrocatalyst for oxygen reduction reaction

Corresponding author: 王靖宇. 韩喜江; 王靖宇. 韩喜江

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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