基于纳米纤维的多维度纳米宏观体:结构设计、调控及其电催化应用
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- 英文论文题名：The integration of Nanostructures with Different Dimensions for Synergistic Electrocatalysis
- 论文作者：顾丽 ; 王娟 ; 李涛 ; 李江 ; 朱罕 ; 张明 ; 杜明亮
- 英文论文作者：Li Gu ; Juan Wang ; Tao Li ; Jiang Li ; Han Zhu ; Ming Zhang ; MingLiang Du ; College of Materials and Textiles ; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of the Ministry of Education ; Zhejiang Sci-Tech University
- 年：2016
- 作者机构：浙江理工大学先进纺织材料与制备技术教育部重点实验室;
- 论文关键词：静电纺丝 ; 过渡金属硫化物 ; 核壳结构 ; 电解水 ; 催化
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：中文
- 分类号：TQ340.64;O643.36
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：536k
- 原文格式：D
- 会议级别：全国
摘要
过渡金属,过渡金属氧化物,碳材料和非金属元素掺杂碳材料等催化剂在高效制氢领域存在广泛应用前景~([1-6])。最近,在制备高效析氢电催化剂方面,我们开发了具有不同晶型结构的Mo S_2二维层状结构,实现了层数和尺寸可控,并研究了催化剂结构与其催化活性直接的关系~([7-9])。同时,钴硫属化物,也被证明是一种良好的析氧催化剂。本研究提出设计一种新型核壳结构,以纳米纤维为反应容器和载体生长Co_9S_8@MoS_2核壳结构。该Co_9S_8@Mo S_2核壳结构由Co_9S_8纳米晶为核,富勒烯结构的Mo S_2为壳层。碳化生长过程所形成的碳纳米纤维不仅充当载体,而且还是核壳结构的反应容器。独特的Co_9S_8@MoS_2/CNFs催化剂系统不仅作为双功能催化剂用于析氢和析氧反应中,与单相层状Mo S_2/CNFs和Co_9S_8/CNFs相比较,具有更高的催化活性。
Electrocatalytic water splitting through the two half-reactions, hydrogen evolution reaction(HER) and oxygen evolution reaction(OER), is a clean and sustainable approach to generate molecular hydrogen(H_2). In addition, hydrogen is supposedly an economic fuel used in electrochemical cells for electric devices, such as fuel cells and metal-air batteries. These important electrochemical reaction processes need effective catalysts to minimize reaction kinetic barriers, expedite the reactions, reduce the overpotential, and thus improve the energy conversion efficiency. To achieve these targets, substantial efforts have been devoted to designing low-cost earth-abundant transition metal-based electrocatalysts to replace the state-of-the-art Pt and IrO_2 catalysts for ORR, HER and OER.
Electrocatalytic water splitting through the two half-reactions, hydrogen evolution reaction(HER) and oxygen evolution reaction(OER), is a clean and sustainable approach to generate molecular hydrogen(H_2). In addition, hydrogen is supposedly an economic fuel used in electrochemical cells for electric devices, such as fuel cells and metal-air batteries. These important electrochemical reaction processes need effective catalysts to minimize reaction kinetic barriers, expedite the reactions, reduce the overpotential, and thus improve the energy conversion efficiency. To achieve these targets, substantial efforts have been devoted to designing low-cost earth-abundant transition metal-based electrocatalysts to replace the state-of-the-art Pt and IrO_2 catalysts for ORR, HER and OER.
引文
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[2]Liu,X.;Zhu,H.;et al.,Mater.Design2016,109,162-170.
[3]Wang,J.;Zhu,H.;et al.,Int.J.Hydrogen Energ.2016,41,18044-18049.
[4]Zhu,H.;Du,M.L.;et al.,Adv.Mater.2015,27,4752-4759.
[5]Zhu,H.;Du,M.L.;et al.,Chem.Commun.2014,50,15435-15438
[6]Zhu,H.;Du,M.L.;et al.,J.Mater.Chem.A2014,2,7680-7685.
[7]Zhu,H.;Du,M.L.;et al.,ACS Appl.Mater.Inter.2014,6,22126-22137.
[5]Zhu,H.;Du,M.L.;et al.,J.Mater.Chem.A2014,2,11728-11741
[6]Zhu,H.;Du,M.L.;et al.,Biosens.Bioelectron.2013,49,210-215