[1]聂文丹,杨齐凤,卢章辉*.介孔硅负载超细Pd纳米粒子催化甲酸分解脱氢[J].江西师范大学学报(自然科学版),2019,(04):416-424.[doi:10.16357/j.cnki.issn1000-5862.2019.04.14]
　NIE Wendan,YANG Qifeng,LU Zhanghui*.The Mesoporous Silicon Supported Ultrafine Pd Nanoparticles for Catalytic Dehydrogenation of Formic Acid[J].Journal of Jiangxi Normal University:Natural Science Edition,2019,(04):416-424.[doi:10.16357/j.cnki.issn1000-5862.2019.04.14]
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介孔硅负载超细Pd纳米粒子催化甲酸分解脱氢()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年04期
页码:
416-424
栏目:
化学与环境科学
出版日期:
2019-08-10

文章信息/Info

Title:
The Mesoporous Silicon Supported Ultrafine Pd Nanoparticles for Catalytic Dehydrogenation of Formic Acid
文章编号:
1000-5862(2019)04-0416-09
作者:
聂文丹; 杨齐凤; 卢章辉*
江西师范大学化学化工学院,江西 南昌 330022
Author(s):
NIE Wendan; YANG Qifeng; LU Zhanghui*
College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang Jiangxi 330022,China
关键词:
甲酸;  制氢;  介孔硅;  氨基功能化;  纳米粒子
Keywords:
formic acid;  hydrogen evolution;  SBA-15;  amine function;  Pd nanoparticles
分类号:
O 643.36
DOI:
10.16357/j.cnki.issn1000-5862.2019.04.14
文献标志码:
A
摘要:
甲酸被认为是一种有前景的化学储氢材料,其释放的氢气能够供给质子交换膜燃料电池使用,应用的关键是要寻找到具有优异性能的催化剂能够使得其在温和的温度调节下产氢.该文使用一步共还原法制备了表面氨基功能化负载的Pd纳米催化剂(Pd@NH2-SBA-15).通过FT-IR、SEM和TEM等技术表征表明Pd@NH2-SBA-15催化剂成功地被合成,尺寸约为2.1 nm的超细Pd纳米粒子均匀地分散在NH2-SBA-15载体上.Pd@NH2-SBA-15催化剂可用于催化甲酸分解制氢.结果表明:在室温下,Pd@NH2-SBA-15催化甲酸分解产氢表现出优异的催化活性,初始转换频率(TOF)值为1 686 h-1,氢气选择性为90%.Pd@NH2-SBA-15催化剂优异的催化性能主要归因于超细的Pd纳米粒子、嫁接到SBA-15上的氨基官能团,以及Pd纳米粒子与载体之间的协同增强催化作用.
Abstract:
Formic acid is regared as a promising chemical hydrogen-storage material.The hydrogen stored in formic acide can be generated via a suitable catalyst,which can be applied in polymer electrolyte membrane fuel cell.The key to the application of formic acied is to find the suitable catalyst with superior performance that enable it to release hydrogen under moderate conditions.Herein,ultrafine Pd nanoparticles supported on amine-functionalized SBA-15(Pd@NH2-SBA-15)are successfully synthesized via a facile co-reduction method.The characterized results show that the Pd@NH2-SBA-15 catalyst have been successfully synthesized and ultrafine bimetallic Pd nanoparticles with a small size of around 2.07 nm are highly dispersed on amine-functionized SBA-15.The Pd@NH2-SBA-15 exhibited the highest catalytic performance toward the dehydrogenation of formic acid,with a initial turnover frequency(TOF)of 1 686 h-1 and 90% H2 selectivity at room temperature.The high performance of Pd@NH2-SBA-15 can be attributed to the ultrafine size of Pd nanoparticles,amine group of NH2-SBA-15 and synergistic cooperative effect between ultrafine Pd nanoparticles and NH2-SBA-15 support.

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备注/Memo

备注/Memo:
收稿日期:2019-03-29
基金项目:国家自然科学基金(21763012),江西省自然科学青年基金(20171ACB21021)和江西省学位与研究生教育教学改革(JXYJG-2015-050)资助项目.
通信作者:卢章辉(1980-),男,湖南平江人,教授,博士,博士生导师,主要从事纳米催化和清洁能源材料研究.E-mail:luzhanghui@hotmail.com
更新日期/Last Update: 2019-08-10