高CO耐性的金属间PtBi纳米片用于甲醇电氧化  

High CO-tolerant intermetallic PtBi nanoplates for methanol electrooxidation

作　　者：李宏健 顾军 史晓斐 刘富亮 陈晓涛 LI Hong-Jian;GU Jun;SHI Xiao-Fei;LIU Fu-Liang;CHEN Xiao-Tao(Guizhou Meiling Power Source Co.Ltd.,State Key Laboratory of Advanced Chemical Power Source,Zunyi,Guizhou 563003,China)

机构地区：[1]贵州梅岭电源有限公司,特种化学电源国家重点实验室,遵义563003

出　　处：《无机化学学报》2023年第11期2074-2082,共9页Chinese Journal of Inorganic Chemistry

基　　金：贵州省遵义市科合支撑项目(No.GY(2021)28)资助。

摘　　要：我们通过热注入的方法制备了一种高CO耐性的金属间PtBi纳米片。所制备的金属间PtBi纳米片在甲醇氧化反应(MOR)中展现出优异的催化性能和良好的稳定性能,最大的质量活性高达4.09 A·mg_(Pt)^(-1),接近商业Pt/C的3.2倍。计时电流-时间(I-t)稳定性测试之后,活性仅仅衰减5.7%,远低于商业Pt/C。CO吸附-脱附(CO-Stripping)曲线和循环伏安演变(CV-Evolution)曲线证实了金属间PtBi纳米片高的CO耐受性。We prepared an intermetallic PtBi nanoplate with high CO tolerance by thermal injection.The prepared intermetallic PtBi nanoplates showed excellent catalytic performance and stability for methanol oxidation reaction(MOR).The peak mass activity was up to 4.09 A·mg_(Pt)^(-1),which was nearly 3.2 times that of commercial Pt/C.After the current-time(I-t)stability test,the property decreased by only 5.7%,much lower than commercial Pt/C.COStripping curves and evolution of cyclic voltammetric(CV-Evolution)curves confirmed high CO tolerance of intermetallic PtBi nanoplates.

关 键 词：燃料电池 甲醇氧化反应 CO耐性 金属间PtBi纳米片 

分 类 号：O643.36[理学—物理化学]