LDH-[PW_7Mo_3Cu_2O_(38)(H_2O)_2](M=Fe^(2+),Co^(2+),Cu^(2+),Ni^(2+)和Mn^(2+))层状化合物的合成、表征及催化活性

Synthesis, characterization and catalytic activity of LDH-[PW_7Mo_3Cu_2O_(38)(H_2O)_2](M=Fe_(2+),Co_(2+),Cu_(2+),Ni_(2+) and Mn_(2+)) layered compounds

用离子交换法将具有Keggin结构[TBA]4H3[PW7Mo3M2O38(H2O)2](M=Fe2+,Co2+,Cu2+,Ni 2+和Mn2+)嵌入到Zn2Al黏土中,得到层状化合物LDH-[PW7Mo3Cu2O38(H2O)2](M=Fe2+,Co2+,Cu2+,Ni 2+和Mn2+),并用XRD,IR,UV对其进行了表征.结果表明:杂多阴离子进入黏土后,仍保留了其Keggin结构.利用合成的层状化合物为催化剂,以顺丁烯二酸与H2O2的环氧化反应为模型反应考察其催化活性,结果表明:层状化合物在环氧化反应中显示优良的催化性能.

The transition compounds with Keggin Mn2＋ ） were synthesized results indicated that wit compounds are still Keggi pounds. Try out the cata ds had good catal n structure. Ethyl acetate was synthesized by the catalyst of layered com- lytic activity of layered compound. The results indicated that the layered ytic activity for the epoxidation of maleic acid using H2 02 oxidant.