摘要
为了增加金属有机骨架材料对氢气的吸附势能叠加量以及得到配位不饱和的金属中心,从而提高材料对氢气的吸附焓,改善材料在常温下的储氢性能,通过SUZUKI偶联反应,设计合成了新型芳香多羧酸配体1,3,5-三(间苯二甲酸)。该新配体集中了合成NOTT-112和MOF-177的配体的特点。与合成NOTT-112的配体相比,新配体减少一个苯环的尺寸,将使聚合物材料的孔尺寸相应减小,增加对氢气的吸附势能叠加量。与合成MOF-177的配体相比,新配体的羧酸配位数增加1倍,将使聚合物中的晶体结构更加多样化。可以预测,用新配体合成的新型金属有机骨架材料可以兼顾NOTT-112及MOF-177的性能,对吸附储氢材料的研究开发具有重要意义。
The cryogenic requirement of high hydrogen storage property of MOF materials prohibits its widespread use.Through adjusting the dimensions of carboxylic acid ligands used to synthesize MOF materials and producing materials with exposed metal centers,the adsorption enthalpies of hydrogen could be enhanced.A novel carboxylic acid ligand C27H18O6 was synthesized through SUZUKI coupling reaction.Compared with the triangular geometry ligand used in synthesizing NOTT-112,this new ligand had a shorter edge length.Compared with the triangular geometry ligand used in synthesizing MOF-177,this ligand had doubled the number of carboxylic acid.With these characteristic,it could be predicted that the materials synthesized by this kind of ligand could integrate both the merits of NOTT-112 and MOF-177.
出处
《化工新型材料》
CAS
CSCD
北大核心
2010年第11期39-42,共4页
New Chemical Materials
基金
国家高技术研究发展计划(863计划
2007AA05Z313)
