R was found that theaddition of CeO2 and MgO to Ni/Al2O3 catalyst would increase the ability ofcatalyst resistance to carbon deposition, which might result from the increasein Ni dispersion and in the interaction between Ni active site and support.

• 实验结果表明，在N Al2O3催化剂中添加CeO2和MgO助剂（催化剂记为Ni/ARM）能有效抑制甲烷脱氢反应，提高二氧化碳消炭能力，增加催化剂的抗积炭性能。