Ga- and In-modified ceria (Ce_0.8Ga_0.2O₂, Ce_0.8In_0.2O₂) materials were used as supports for cobalt-catalyzed Fischer-Tropsch synthesis (FTS). The addition of Ga to ceria was found to improve CO conversion for cobalt-catalyzed FTS, while the addition of In tended to decrease it. A similar trend was observed with the Ag-promoted cobalt/ceria catalysts. Doping of ceria with Ga or In decreased methane and increased the selectivity to olefins and alcohols for Ag-promoted cobalt/ceria. The sum of the products of olefins and alcohols for various catalysts exhibited a decreasing trend as follows: Ag-Co/Ce-Ga > Ag-Co/Ce-In > Ag-Co/Ce. Results of H₂-TPR-XANES showed that adding of Ga or In to ceria increases the fraction of Ce³⁺ in the surface shell for both unpromoted and Ag-promoted catalysts in the range of temperature typical of catalyst activation. This partially reduced ceria plays an important role in controlling the product selectivity of cobalt-catalyzed FT synthesis.

Ga-和In-改性的二氧化铈（Ce _0.8 Ga _0.2 O ₂，Ce _0.8 In _0.2 O ₂）材料用作钴催化费-托合成（FTS）的载体。发现在铈土中添加Ga可以改善钴催化FTS的CO转化率，而In的添加往往会降低CO转化率。用Ag促进的钴/二氧化铈催化剂观察到类似的趋势。用Ga或In掺杂二氧化铈减少了甲烷，并提高了Ag促进的钴/二氧化铈对烯烃和醇的选择性。用于各种催化剂的烯烃和醇的产物的总和表现出如下下降趋势：Ag-Co / Ce-Ga> Ag-Co / Ce-In> Ag-Co / Ce。H _2的结果-TPR-XANES表明，在催化剂活化的典型温度范围内，对于未促进的催化剂和Ag促进的催化剂，向二氧化铈中添加Ga或In会增加表面壳层中Ce ³⁺的比例。这种部分还原的二氧化铈在控制钴催化的FT合成的产物选择性中起着重要作用。