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Ｋ＋－ＳｒＯ－Ｌａ２Ｏ３／ＺｎＯ（ＫＳＬＺ）催化体系具有很好的催化活性．在１０７３Ｋ反应温度下，其Ｃ２产率为１８．２％，且Ｃ２选择性为６８．３％．催化剂抗潮能力明显增加，在室温下经长期放置后，催化剂活性稳定．用ＸＲＤ，ＣＯ２－ＴＰＤ和ＸＰＳ表征了ＫＳＬＺ催化剂的体相组成及表面碱性、表面组成和表面活性氧物种．在此基础上讨论了Ｌａ２Ｏ３，ＳｒＯ和Ｋ＋各组分对甲烷氧化偶联反应的作用，提出了表面碳酸盐分解生成活性氧物种的可能性．
K + -SrO-La2O3 / ZnO (KSLZ) catalytic system has good catalytic activity. At a 1073K reaction temperature, its C2 yield was 18.2% and the C2 selectivity was 68.3%. The moisture resistance of the catalyst is obviously increased. The catalyst has stable activity after being stored at room temperature for a long time. The phase composition, surface alkalinity, surface composition and surface active oxygen species of KSLZ catalyst were characterized by XRD, CO2-TPD and XPS. On this basis, the effects of La2O3, SrO and K + on the oxidative coupling reaction of methane were discussed, and the possibility of decomposition of surface carbonate to generate reactive oxygen species was proposed.