【摘要】 合成、表征了一系列 SBA-1 5负载 H3PW12 O4 0 ( PW)催化剂 .负载量高达 60 %以上时 ,XRD仍未检测到催化剂上有 PW晶相峰 .负载后 PW保持其 Keggin结构 ,但与载体之间存在较强的相互作用 .通过改变PW负载量可调变催化剂的酸性 ,制得适用于中强酸和弱酸性催化反应的介孔固体酸催化剂更多还原

【Abstract】 A series of SBA 15 supported H 3PW 12 O 40 (PW) catalysts were prepared and characterized. PW crystal phase was not observed in XRD patterns at PW loading as high as 60%. PW dispersed on the supports retains its Keggin structure, but a strong chemical interaction between PW and SBA 15 supports is present. The activity of the catalysts can be adjusted by varying PW loading. PW/SBA 15 catalysts are promising mesoporous solid acid catalysts for medium strong and weak acid catalyzed reactions.更多还原