功能材料
功能材料
공능재료
Journal of Functional Materials
2015年
16期
16129-16132
,共4页
赵博琪%陈维民%朱振玉%刘欢%王媛
趙博琪%陳維民%硃振玉%劉歡%王媛
조박기%진유민%주진옥%류환%왕원
混合载体%碳纳米管%石墨烯%PtRu%甲醇氧化
混閤載體%碳納米管%石墨烯%PtRu%甲醇氧化
혼합재체%탄납미관%석묵희%PtRu%갑순양화
mixed support%CNT%GNS%PtRu%methanol oxidation
以碳纳米管(CN T )和石墨烯(GNS )混合材料作为载体,采用微波还原法将 PtRu纳米粒子负载到混合载体表面,制备了 PtRu/CN T‐GNS 纳米催化剂。透射电镜(T EM )结果显示,PtRu纳米粒子均匀地分散在混合载体表面,粒径分布范围较窄,平均粒径约为21.7 nm。电化学测试结果表明,与单一碳载体负载的催化剂 PtRu/CN T 相比,PtRu/CN T‐GNS 呈现出更高的甲醇氧化活性和更好的抗中毒能力。
以碳納米管(CN T )和石墨烯(GNS )混閤材料作為載體,採用微波還原法將 PtRu納米粒子負載到混閤載體錶麵,製備瞭 PtRu/CN T‐GNS 納米催化劑。透射電鏡(T EM )結果顯示,PtRu納米粒子均勻地分散在混閤載體錶麵,粒徑分佈範圍較窄,平均粒徑約為21.7 nm。電化學測試結果錶明,與單一碳載體負載的催化劑 PtRu/CN T 相比,PtRu/CN T‐GNS 呈現齣更高的甲醇氧化活性和更好的抗中毒能力。
이탄납미관(CN T )화석묵희(GNS )혼합재료작위재체,채용미파환원법장 PtRu납미입자부재도혼합재체표면,제비료 PtRu/CN T‐GNS 납미최화제。투사전경(T EM )결과현시,PtRu납미입자균균지분산재혼합재체표면,립경분포범위교착,평균립경약위21.7 nm。전화학측시결과표명,여단일탄재체부재적최화제 PtRu/CN T 상비,PtRu/CN T‐GNS 정현출경고적갑순양화활성화경호적항중독능력。
Carbon nanotubes (CNT) and graphene (GNS) had been mixed as a new support ,PtRu/CNT‐GNS catalysts was prepared by reduction method .PtRu nanoparticles were loaded to the mixed support surface by microwave .The structure and morphology of the samples were characterized by transmission electron microsco‐py (TEM) ,PtRu nanoparticles dispersed on the surface of the mixed support uniformly ,it had a narrow parti‐cle size distribution ,the average particle size is about 2 .17 nm .The activity and stability of PtRu/CNT‐GNS catalysts for methanol electro oxidation were tested by electrochemical method .The results indicated that the PtRu/CNT‐GNS catalysts showed higher methanol oxidation activity and better ability of anti poisoning than PtRu/CNT ,PtRu/GNS catalysts supported by single carbon .