ZIF-67衍生的C&Co对电极在染料敏化太阳电池中的应用
ZIF-67 derived C&Co counter electrode in dye-sensitized solar cells
孙振范 1何云啸 2乔晓冬 3雷炳新4
作者信息
- 1. 海南科技职业大学海南省药食植物资源重点实验室,海南海口 571126;海南师范大学化学与化工学院,海南省电化学储能与能量转换重点实验室,海口市电化学储能与光能转换材料重点实验室,海南海口 571158
- 2. 海南师范大学化学与化工学院,海南省电化学储能与能量转换重点实验室,海口市电化学储能与光能转换材料重点实验室,海南海口 571158
- 3. 海南大学热带作物学院,热带岛屿资源先进材料教育部重点实验室,海南海口 570228
- 4. 广西民族大学材料与环境学院,广西先进结构材料与碳中和重点实验室,广西高校环境友好材料及碳中和新技术重点实验室,广西 南宁 530105
- 折叠
摘要
选用ZIF-67为研究对象,热处理后,得到了含有钴元素的碳基复合材料(C&Co),用X射线衍射(XRD)、场发射扫描电子显微镜(FE-SEM)、透射电子显微镜(TEM)和X射线光电子能谱(XPS)对其进行了纳米结构和形貌分析.采用循环伏安法、电化学阻抗谱和Tafel极化对其电化学响应进行了综合表征.C& Co复合材料对电极的电化学分析表明,该电极对三碘化合物的还原具有明显的电催化活性.用C& Co复合材料对电极制备的DSSC在AM1.5G模拟太阳光照射条件下显示出5.3％的转换效率,在非Pt对电极材料中展现出较大的应用潜力.
Abstract
ZIF-67 containing cobalt cation was selected as the research object,and the carbon-containing co-balt matrix nanocomposite(C&Co)was obtained after heat treatment in a nitrogen atmosphere at the ap-propriate temperature.The nanostructures and morphologies of the nanocomposite were analyzed by X-ray diffraction,field emission scanning electron microscopy,transmission electron microscopy,and X-ray pho-toelectron spectroscopy.The electrochemical response was comprehensively characterized by cyclic volta-mmetry,electrochemical impedance spectroscopy,and Tafel polarization.The electrochemical analysis of the C&Co nanocomposite electrode shows that the electrode has an obvious electrocatalytic activity for the reduction of the triiodide compound.The conversion efficiency of dye-sensitized solar cells prepared with C&Co nanocomposite electrode shows 5.3％under the condition of AMI.5G simulated sunlight irradia-tion,which shows great application potential in Pt-free electrode materials.
关键词
DSSCs/对电极/MOFs/C&Co复合材料Key words
dye-sensitized solar cells/counter electrode/MOFs/C&Co nanocomposite引用本文复制引用
基金项目
National Natural Science Foundation of China(21965013)
Hainan Provincial Natural Science Foundation(521CXTD438)
Hainan Province Postdoctoral Research Funding Project(RZ2300005520)
出版年
2024
NETL
NSTL
万方数据