Cobalt-cadmium bimetallic porphyrin coordination polymers for electrochemistry application

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, C.Y.^1 ; Cui, G.Y.^1 ; Ding, D.^1 ; Zhou, B.^1

Nanjing Normal University, Nanjing

210023, China^1

关键词: Active center;    Coordination Polymers;    Inductively Coupled Plasma Atomic Emission Spectrometers;    Metal porphyrins;    Metal ratio;    Multiple metals;    Sodium nitrite;    Tetra (4 carboxyphenyl)porphyrin;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012107/pdf
DOI  :  10.1088/1757-899X/292/1/012107

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, we used tetra (4-carboxyphenyl) porphyrin (H2TCPP) and metal cadmium, cobalt as reactants to synthesize metal porphyrin coordination polymers that they had different metal ratio. They were expressed as Co1Cd3TCPP, Co1Cd1TCPP, Co3Cd1TCPP, respectively. The results were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and inductively coupled plasma atomic emission spectrometer (ICP). Herein, a series of metal porphyrin coordination polymers has multiple metal active centers and constructs electrochemistry sensors. In order to increase the conductivity, multi-walled carbon nanotubes (MWCNTs) can be used to modify the electrodes. The polymer/MWCNTs/GCE electrode was studied by cyclic voltammetry and chronoamperometry as sensor for sodium nitrite. The performance of Co1Cd1TCPP/MWCNTs/GCE electrode is best, the sensitivity for sodium nitrite is 350.95 mA M-1cm-2and the. The results indicate that metal porphyrin coordination polymers have excellent performance. It also enriches the application of metal porphyrin coordination polymer in electrochemistry sensor.