CAJ | 학술논문

本实验以碳化钨（WC）增强的AuPdPt-WC/C复合催化剂作为直接甲醇燃料电池（DMFC）的阴极催化剂，选取了各组元比例，温度为变量，测试了其作为 DMFC催化剂的性能。首先，采用了间歇微波加热法（IHM）制备了纳米级的碳化钨（WC）颗粒，并采用还原法和真空干燥法制备了 AuPdPt-WC/C 复合催化剂，控制 Au、Pd、Pt的比例，制备了两组催化剂。通过循环伏安扫描，线性伏安扫描等手段进行电化学测试，表征其氧还原的性能。结果显示，复合催化剂具有高于传统 Pt/C催化剂的性能，并且与实验条件息息相关。
본실험이탄화오（WC）증강적AuPdPt-WC/C복합최화제작위직접갑순연료전지（DMFC）적음겁최화제，선취료각조원비례，온도위변량，측시료기작위 DMFC최화제적성능。수선，채용료간헐미파가열법（IHM）제비료납미급적탄화오（WC）과립，병채용환원법화진공간조법제비료 AuPdPt-WC/C 복합최화제，공제 Au、Pd、Pt적비례，제비료량조최화제。통과순배복안소묘，선성복안소묘등수단진행전화학측시，표정기양환원적성능。결과현시，복합최화제구유고우전통 Pt/C최화제적성능，병차여실험조건식식상관。
Our research mainly focuses on the preparation and characterization of tungsten carbide (WC) enhanced AuPdPt-WC/C composite catalyst of the cathode oxygen reduction reaction of direct methanol fuel cells (DMFC). By using intermittent mi-crowave heating method, we firstly synthesized nano tungsten carbide particle, then we prepared two AuPdPt-WC/C catalyst of different composition through reduction method and vacuum drying method. For characterization, we controlled composition and temperature as variable and used cyclic voltammetry and linear sweep voltammetry for electrochemistry test. The results indicated that the composite catalyst has a better performance than common single Pt catalyst and its performance is influenced by operating conditions.