无机纳米电催化材料的制备和调控
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- 英文论文题名：Engineering Nanostructured Materials for High Performance Electrocatalysis
- 论文作者：李彦光
- 英文论文作者：Yanguang Li ; Institute of Functional Nano & Soft Materials ; Soochow University
- 年：2016
- 作者机构：苏州大学功能纳米与软物质研究院;
- 论文关键词：电催化 ; 无机纳米材料 ; 甲醇氧化 ; CO_2还原
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十七分会：纳米催化
- 语种：中文
- 分类号：TB383.1;O643.36
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十七分会 ; 纳米催化
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：2
- 文件大小：180k
- 原文格式：D
- 会议级别：全国
摘要
无机纳米材料在很多与能源相关的电催化反应体系中扮演了重要的角色。在本次汇报中,我将简单介绍我们课题组自2013年底组建以来在调控无机纳米材料应用于电催化析氢、氧还原、甲醇/乙醇氧化和CO_2还原所做的一些工作。目的在于揭示材料结构和性能之间的内在联系,通过优化材料的结构大幅度提升它们的电催化性能。其中重点包括两部分内容:在第一部分中,我们将介绍基于Pt-Ni(OH)_2-graphene的三元复合甲醇催化氧化材料。在碱性电解液中,这种复合材料展现了突出的催化活性和催化稳定性,实现了超过100万秒的长时间工作而不发生失活。在第二部分中,我们介绍基于聚酞菁钴-碳纳米管的复合CO_2催化还原材料。在低过电势下(~180mV)能够高效地把CO_2还原成CO,法拉弟效率高达>90%,在η=0.5时催化转化速率超过800/h.
Nanostructured materials hold great promise for a large number of electrocatalytic reactions.In this presentation,I will briefly review the activities and efforts of our research group on engineering nanomaterials for electrocatalysis within the last two years.Several promising materials will be demonstrated as examples and their electrocatalytic activities toward hydrogen evolution reaction(HER),oxygen reduction reaction(ORR),methanol oxidation reaction(MOR) and CO_2 reduction reaction(CO2RR) will be discussed in detail,with an emphasis on understanding their structure-property relationships.In particular,I will introduce our recent discovery of Pt-Ni(OH)_2-graphene ternary hybrid materials as a MOR electrocatalyst with high activity and recording-breaking durability,and CoPPc-CNT hybrid materials as a CO2 RR electrocatalyst to selectively reduce CO_2 to CO at low overpotential,with high Faradaic efficiency and TOF.
Nanostructured materials hold great promise for a large number of electrocatalytic reactions.In this presentation,I will briefly review the activities and efforts of our research group on engineering nanomaterials for electrocatalysis within the last two years.Several promising materials will be demonstrated as examples and their electrocatalytic activities toward hydrogen evolution reaction(HER),oxygen reduction reaction(ORR),methanol oxidation reaction(MOR) and CO_2 reduction reaction(CO2RR) will be discussed in detail,with an emphasis on understanding their structure-property relationships.In particular,I will introduce our recent discovery of Pt-Ni(OH)_2-graphene ternary hybrid materials as a MOR electrocatalyst with high activity and recording-breaking durability,and CoPPc-CNT hybrid materials as a CO2 RR electrocatalyst to selectively reduce CO_2 to CO at low overpotential,with high Faradaic efficiency and TOF.
引文
[1]Huang,S.;Li,Y.*et al.Nature Commun.2015,6:10035.
[2]Gong,Q.;Li,Y.*et al.ACS Catal.2015,5:2213.
[3]Zeng,M.;Li,Y.*J.Mater.Chem.A 2015,3:14942.
[4]Cheng,L.;Li,Y.*et al.Angew.Chem.2014,30:7860.
[5]Li,Y.*;Dai,H.*Chem.Soc.Rev.2014,43,5257.
[2]Gong,Q.;Li,Y.*et al.ACS Catal.2015,5:2213.
[3]Zeng,M.;Li,Y.*J.Mater.Chem.A 2015,3:14942.
[4]Cheng,L.;Li,Y.*et al.Angew.Chem.2014,30:7860.
[5]Li,Y.*;Dai,H.*Chem.Soc.Rev.2014,43,5257.