摘要
提出一种新的复合固体超强酸催化剂WO_3-ZrO_2-SO_4^(2-)及其合成方法.用指示剂法测定其700~800℃范围内烧制样品的酸强度H_o≤-16.04;吸附吡啶的红外光谱表明,其表面同时存在B酸中心和L酸中心。
A new kind of complex solid superacid catalyst WO_3-ZrO_2-SO_4^(2-) is synthesized, the acid strength of the samples calcined at 700~ 800℃ range is H_0≤-16.04 by the indicator method. The infrared spectro-scopy of pyridine absorbed on the catalyst surface shows that there are both strong BrΦnsted acidity and strong Lewis acidity on its surface.
出处
《北京师范大学学报(自然科学版)》
CAS
CSCD
1992年第1期78-82,共5页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金
关键词
固体超强酸
催化剂
酸强度
complex solid superacid
acid strongth
infrared spectroscopy
heterogeneous catalyst