聚苯胺-改性木质素磺酸钠复合材料基活性炭负载Pd催化剂对甲酸氧化的催化性能（英文）
发布时间：2018-07-25 21:07
【摘要】：将聚苯胺/改性木质素磺酸钠复合材料在不同炭化温度下进行处理得到活性炭材料,利用红外光谱、拉曼光谱、比表面积分析和扫描电镜等手段对其结构和表面性质进行了表征。通过液相还原方法将Pd纳米颗粒负载在所制备的活性炭材料上,获得Pd/C催化剂用于甲酸氧化,并采用X射线衍射、透射电镜和电化学测试等方法对该Pd/C催化剂进行表征。结果表明,以800℃下炭化得到的活性炭材料为载体所制备的Pd-AC800催化剂其催化性能最优;Pd粒径为5.4 nm,电化学活性面积为53.78 m~2/g。由于在该催化剂上甲酸氧化通过直接途径进行,Pd-AC800可用作直接甲酸燃料电池的催化剂。
[Abstract]:Polyaniline / modified sodium lignosulfonate composites were treated at different carbonization temperatures to obtain activated carbon materials. Its structure and surface properties were characterized by specific surface area analysis and SEM. PD nanoparticles were loaded on the prepared activated carbon by liquid phase reduction method to obtain Pd/C catalyst for formic acid oxidation. The Pd/C catalyst was characterized by X-ray diffraction, transmission electron microscopy and electrochemical measurement. The results show that the Pd-AC800 catalyst prepared by carbonized activated carbon at 800 鈩，
本文编号：2145088
[Abstract]:Polyaniline / modified sodium lignosulfonate composites were treated at different carbonization temperatures to obtain activated carbon materials. Its structure and surface properties were characterized by specific surface area analysis and SEM. PD nanoparticles were loaded on the prepared activated carbon by liquid phase reduction method to obtain Pd/C catalyst for formic acid oxidation. The Pd/C catalyst was characterized by X-ray diffraction, transmission electron microscopy and electrochemical measurement. The results show that the Pd-AC800 catalyst prepared by carbonized activated carbon at 800 鈩，
本文编号：2145088
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