CAJ | 학술논문

以纳米石墨为原料，用两种方法分别制得石墨烯GN-1和GN-2。结果表明，用两种方法制备的石墨烯比表面积比纳米石墨都有显著增加。两种方法制备的石墨烯GN-1和GN-2形貌不同，孔径分布也有很大的差异。分别以两种方法制备的石墨烯为载体制备了 Pd 催化剂 Pd/GN-1和 Pd/GN-2。 Pd/GN-1和 Pd/GN-2催化剂的电化学比表面积分别为34.66和71.25 m2/g。这两种催化剂对甲酸的电催化氧化活性都较纳米石墨作载体制备的催化剂Pd/G有显著的提高，甲酸在Pd/GN-1和Pd/GN-2催化剂上的氧化峰电流密度分别为66.0和95.8 mA/cm2。两种催化剂对甲酸的氧化都有很好的稳定性。
이납미석묵위원료，용량충방법분별제득석묵희GN-1화GN-2。결과표명，용량충방법제비적석묵희비표면적비납미석묵도유현저증가。량충방법제비적석묵희GN-1화GN-2형모불동，공경분포야유흔대적차이。분별이량충방법제비적석묵희위재체제비료 Pd 최화제 Pd/GN-1화 Pd/GN-2。 Pd/GN-1화 Pd/GN-2최화제적전화학비표면적분별위34.66화71.25 m2/g。저량충최화제대갑산적전최화양화활성도교납미석묵작재체제비적최화제Pd/G유현저적제고，갑산재Pd/GN-1화Pd/GN-2최화제상적양화봉전류밀도분별위66.0화95.8 mA/cm2。량충최화제대갑산적양화도유흔호적은정성。
Two kinds of graphene GN-1 and GN-2 with significantly increased specific surface area were obtained from nano graphite by different methods. The morphology and pore size distribution of GN-1 and GN-2 also have great differences. Using these two kinds of graphene as supports, Pd catalysts were prepared and designed as Pd/GN-1 and Pd/GN-2 . The electrochemical specific surface area of Pd/GN-1 and Pd/GN-2 catalysts are 34. 66 and 71. 25 m2/g. The catalytic activities of Pd/GN-1 and Pd/GN-2 during the formic acid electrooxidation reaction are greatly improved compared with the Pd catalyst supported by nano graphite. The peak current densities of formic acid oxidation on Pd/GN-1 and Pd/GN-2 are 66. 0 and 95. 8 mA/cm2 . The Pd/GN-1 and Pd/GN-2 catalysts also have good stability for formic acid electrooxidation.