功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2013年
20期
2967-2970,2975
,共5页
杨改秀%孔晓英%袁振宏%陈冠益%陆天虹%孙永明
楊改秀%孔曉英%袁振宏%陳冠益%陸天虹%孫永明
양개수%공효영%원진굉%진관익%륙천홍%손영명
甲醇%Pt-P/C 催化剂%电催化氧化%直接甲醇燃料电池
甲醇%Pt-P/C 催化劑%電催化氧化%直接甲醇燃料電池
갑순%Pt-P/C 최화제%전최화양화%직접갑순연료전지
methanol%Pt-P/C catalyst%electrocatalytic oxidation%direct methanol fuel cells
通过 NaH2 PO2自分解方法制备了高分散性的Pt-P/C催化剂,并且使用 X射线衍射(XRD)、透射电子显微镜(TEM)等表征手段对催化剂进行了表征,NaH2 PO2的加入可有效降低催化剂的粒径,约为2.3 nm。此外,亦用多种电化学测试手段测试了 P 的掺杂对甲醇的电催化氧化性能的影响,测试结果表明Pt-P/C催化剂不但能够增强催化剂对甲醇催化氧化的活性,而且还能够提高催化剂的稳定性。该测试结果表明Pt-P/C催化剂是一类具有潜在应用前景的直接甲醇燃料电池阳极催化剂。
通過 NaH2 PO2自分解方法製備瞭高分散性的Pt-P/C催化劑,併且使用 X射線衍射(XRD)、透射電子顯微鏡(TEM)等錶徵手段對催化劑進行瞭錶徵,NaH2 PO2的加入可有效降低催化劑的粒徑,約為2.3 nm。此外,亦用多種電化學測試手段測試瞭 P 的摻雜對甲醇的電催化氧化性能的影響,測試結果錶明Pt-P/C催化劑不但能夠增彊催化劑對甲醇催化氧化的活性,而且還能夠提高催化劑的穩定性。該測試結果錶明Pt-P/C催化劑是一類具有潛在應用前景的直接甲醇燃料電池暘極催化劑。
통과 NaH2 PO2자분해방법제비료고분산성적Pt-P/C최화제,병차사용 X사선연사(XRD)、투사전자현미경(TEM)등표정수단대최화제진행료표정,NaH2 PO2적가입가유효강저최화제적립경,약위2.3 nm。차외,역용다충전화학측시수단측시료 P 적참잡대갑순적전최화양화성능적영향,측시결과표명Pt-P/C최화제불단능구증강최화제대갑순최화양화적활성,이차환능구제고최화제적은정성。해측시결과표명Pt-P/C최화제시일류구유잠재응용전경적직접갑순연료전지양겁최화제。
Highly dispersed Pt-P/C catalyst was prepared by the self decomposition of NaH2 PO2 ,and it was characterized by characterized by transmission electron microscopy (TEM),X-ray diffraction (XRD).The addition of could reduce the platinum particle size effectively,and the mean size of the Pt-P particles was about 2.3nm.Furthermore,the effect of P doping towards the oxidation of methanol were also demonstrated by several electrochemical measures.The results showed that carbon-supported Pt-P catalyst exhibits higher activity and stability for the oxidation of methanol.Therefore,the Pt-P/C nanoparticles was a promising anode catalyst in DMFC.
