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用ＸＰＳ／ＡＥＳ、ＴＥＭ和ＸＲＤ技术对ＣＨ４／ＣＯ２重整制合成气负载型Ｃｏ金属催化剂表面积炭的组成和形貌进行了表征。通过对不同气体处理的１６．０％（ｍａｓ）Ｃｏ／γ－Ａｌ２Ｏ３催化剂表面积炭进行ＸＰＳ／ＡＥＳ组成分析发现，金属碳化物碳（Ｂ．Ｅ．２８２．５ｅＶ）是重整反应中与ＣＯ２作用生成ＣＯ的活性碳物种。这种活性金属碳化物碳还可进一步转化为惰性的丝状碳和石墨碳。ＴＥＭ和ＸＲＤ分析结果表明，催化剂上生成丝状碳数量顺序为：１６％Ｃｏ／γ－Ａｌ２Ｏ３＞＞９％Ｃｏ／γ－Ａｌ２Ｏ３～９％Ｃｏ－Ｃａ／γ－Ａｌ２Ｏ３（ｍ（Ｃａ）∶ｍ（Ａｌ）＝１∶１）。这与相应催化剂上Ｃｏ微晶晶粒尺寸大小顺序（３０ｎｍ＞１５ｎｍ＞９ｎｍ）有一定的对应关系。作者认为，通过提高金属Ｃｏ微晶在催化剂表面的分散度和稳定性，可以有效地抑制丝状碳的生成。
The composition and morphology of surface carbon deposited on the CH 4 / CO 2 reforming syngas-supported Co metal catalyst were characterized by XPS / AES, TEM and XRD. XPS / AES analysis of the surface carbon deposits on 16.0% (mas) Co / γ-Al2O3 catalysts treated with different gases showed that the metal carbides carbon (B.E.282.5eV) Activated carbon species that produce CO. This reactive metal carbide carbon can be further converted to inert filamentous and graphitic carbons. TEM and XRD results show that the order of the amount of filamentous carbon formed on the catalyst is: 16% Co / γ-Al2O3 >> 9% Co / γ-Al2O3 ~ 9% Co-Ca / γ-Al2O3 (Al) = 1: 1). This corresponds to the order of crystallite size of Co crystallites (30nm> 15nm> 9nm) on the corresponding catalyst. The authors believe that the formation of filamentous carbon can be effectively suppressed by increasing the dispersion and stability of the metal Co crystallites on the catalyst surface.