Loading uniform Ag_(3)PO_(4)nanoparticles on three-dimensional peony-like WO_(3)for good stability and excellent selectivity towards NH_(3)at room temperature

作     者：邵星炎 贾福超 刘婷婷 刘健诚 王小梅 尹广超 吕娜 周通 Ramachandran Rajan 刘波 Xingyan Shao;Fuchao Jia;Tingting Liu;Jiancheng Liu;Xiaomei Wang;Guangchao Yin;Na Lv;Tong Zhou;Ramachandran Rajan;Bo Liu

作者机构：Laboratory of Functional Molecules and MaterialsSchool of Physics and Optoelectronic EngineeringShandong University of TechnologyZibo 255000China School of Material Science and EngineeringShandong University of TechnologyZibo 255000China Provincial Key Laboratory of Network Based Intelligent ComputingUniversity of JinanJinan 250022China Translational Medical CenterZibo Central HospitalZibo 255036China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2023年第32卷第8期

页      面：251-259页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 

基　　金：financial support from the Collaborative Education Project of IndustryUniversity Cooperation of the Ministry of Education of China(Grant No.202101256024) the National Natural Science Foundation of China(Grant Nos.11904209 and 61802144) 

主　　题：Ag_(3)PO_(4) peony-like WO_(3) NH_(3) room temperature 

摘      要：A heterojunction structure design is a very good method for improving the properties of semiconductors in many research *** method is employed in the present study to promote the gas-sensing performance of Ag_(3)PO_(4)nanocomposites at room temperature(25℃).A nanocomposite of Ag_(3)PO_(4)nanoparticles and three-dimensional peony-like WO_(3)(WO_(3)/Ag_(3)PO_(4))was successfully prepared by the precipitation *** crystalline phases were analyzed by xray diffraction and the microstructure was characterized by scanning electron microscopy and transmission electron *** chemical bonding states were analyzed by x-ray photoelectron *** gas-sensing performance of WO_(3)/Ag_(3)PO_(4)sensors was systematically explored at room *** composite sensors possessed a higher response and lower detection limit(1 ppm)to NH_(3)than those made of a single type of material;this is ascribed to the synergistic effect achieved by the heterojunction *** the different composite sensors tested,gas sensor A5W5(Ag_(3)PO_(4):WO3mass ratio of 5:5)displayed the highest response to NH_(3)at room ***,the A5W5 gas sensor exhibited relatively good stability and excellent selectivity to NH_(3).The A5W5 sensor also displayed a relatively good response under high *** gas-sensing mechanism of the WO_(3)/Ag_(3)PO_(4)sensors is explained in *** together,the as-prepared sensor is highly efficient at detecting NH_(3)and could be suitable for practical *** addition,this study also provides a new method for developing Ag_(3)PO_(4)-based sensors in the gas-sensing field.