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用固体NMR技术研究了新型分子筛MCM 2 2在不同水合状态下的2 7Al谱和1 H谱 .并用新的1 H/2 7Al双共振方法TRAPDOR对MCM 2 2分子筛的各种铝状态进行了研究 ,得到了样品脱水后B酸位 (Bronsted)、L酸位 (Lewis)以及非骨架Al(OH)的四极耦合常数 .
Solid-state NMR was used to study the 2 7 Al and 1 H spectra of the new molecular sieve, MCM 2 2, under different hydration conditions. The various aluminum states of the MCM 2 2 zeolite were investigated by a novel 1 H / 2 7Al double resonance method, TRAPDOR The four-pole coupling constants of Bronsted, L-acid and non-framework Al (OH) were obtained after dehydration.