首页> 外文会议>ASME international conference on fuel cell science, engineering, and technology >SYNTHESIS, CHARACTERIZATION AND PHYSIC-CHEMICAL PROPERTIES OF PLATINUM SUPPORTED ON MESOPOROUS CARBON
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SYNTHESIS, CHARACTERIZATION AND PHYSIC-CHEMICAL PROPERTIES OF PLATINUM SUPPORTED ON MESOPOROUS CARBON

机译:介孔碳负载铂的合成,表征和物理化学性质

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Ordered mesoporous carbon (OMC) has been prepared by impregnating the pores of the silica template (SBA-15) with liquid petroleum gas (LPG) or sucrose. The desired support (OMC) was obtained after dissolution with NaOH. Platinum nanoparticles were dispersed on ordered mesoporous carbons using Chemical Vapour Deposition (CVD) method and Pt(acac)2 as metal source. The resulting ordered mesoporous carbon possess a large surface area with high microporosity, and a controlled pore size distribution, High-quality carbon replicas of SBA-15 show an X-ray diffraction peak at low angle, which indicates that the structural periodicity of the (111) planes has been maintained. Their pore volume and specific surface area are high and the pore volume is almost entirely microporous. The synthesized Pt/OMC was characterized by powder X-Ray diffraction, HR-TEM, HR-SEM, EDS, thermogravimetric analysis, and nitrogen adsorption. The performance of Pt catalyst supported OMC was evaluated by electrochemical studies, which shows almost similar activity to the commercial catalyst.
机译:通过用液体石油气体(LPG)或蔗糖浸渍二氧化硅模板(SBA-15)的孔来制备有序的介孔碳(OMC)。在用NaOH溶解后获得所需的载体(OMC)。使用化学气相沉积(CVD)方法和Pt(ACAC)2作为金属来源,将铂纳米颗粒分散在有序的介孔碳上。得到的有序的介孔碳具有具有高微孔的大表面积,并且受控的孔径分布,SBA-15的高质量碳复制品以低角度显示X射线衍射峰值,这表明该X射线衍射峰值表示( 111)计划已维持。它们的孔体积和比表面积高,孔体积几乎完全是微孔。合成的Pt / OMC的特征在于粉末X射线衍射,HR-TEM,HR-SEM,EDS,热重分析和氮吸附。通过电化学研究评估Pt催化剂支持的OMC的性能,其显示出与商业催化剂几乎相似的活性。

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