Propanetricarboxylic acid ornamented multi-Ce^(Ⅲ) encapsulated phospho(Ⅲ) tungstate and its electrochemical sensing properties  

作　　者：Bao-Xing Zeng Guo-Ping Liu Yu-Jiao Hao Zhuo Chen Li-Juan Chen Jun-Wei Zhao 

机构地区：[1]Henan Key Laboratory of Polyoxometalate Chemistry,College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475004,China

出　　处：《Tungsten》2023年第2期277-285,共9页钨科技（英文）

基　　金：financially supported by the National Natural Science Foundation of China(Grant Nos.21871077,22071042,22171070);the Program for Innovation Teams in Science and Technology in Universities of Henan Province(Grant Nos.20IRTSTHN004)。

摘　　要：A propanetricarboxylic acid ornamented multi-CeⅢencapsulated phospho(Ⅲ)tungstate[H_(2)N(CH_(3))_(2)]_(4)Na_(4)H_(2)[Ce_(4)(HP)W_(4)(H_(2)0)_(14)(H_(2)PTCA)_(2)O_(18)][(HPⅢ)_(2)W_(22)O_(76)]·16H_(2)O(1,H_(3)PTCA=1,2,3-propanetricarboxylic acid)was obtained by a facile one-step reaction of Na_(2)WO_(4)·2H_(2)O,H_(3)PO_(3),Ce(NO_(3))·6H_(2)O,itaconic acid(H2ICA)and dimethylamine hydrochloride.Notably,the polyanion of 1 possesses a neotype[(HP^(Ⅲ))_(2)W_(22)O_(76)]12-fragment and an unusual[HP^(Ⅲ)W_(4)O_(18)]^(8-)unit bridge d by fourCe^(3+)centers in the assistance of two H2PTCA-ligands.It is worth emphasizing that two H2PTCA-ligands simultaneously chelate with WⅥand CeⅢcenters.Furthermore,the composite of 1 and carboxyl-functionalized multi-walled carbon nanotube(CMCN)is utilized to modify glassy carbon electrode(GCE)to develop the 1@CMCN/GCE electrochemical sensor.The 1@CMCN/GCE electrochemical sensor displays potential sensing property toward detection of noradrenaline(NDL)with low limit of 2.10μmo1·L^(-1).This research will powerfully facilitate continuous investigations on rational design and in-depth development of structure-oriented rare-earth inserted phospho(Ⅲ)tungstates and tremendously promote their application developments in drug testing,clinical diagnosis,and food detection.

关 键 词：POLYOXOMETALATE PHOSPHOTUNGSTATE Rare earth ELECTROCHEMISTRY NORADRENALINE 

分 类 号：O641.4[理学—物理化学] O657.1[理学—化学]