High and Reversible Ammonia Uptake in Mesoporous Azolate Metal Organic Frameworks with Open Mn, Co, and Ni Sites
High and Reversible Ammonia Uptake in Mesoporous Azolate Metal Organic Frameworks with Open Mn, Co, and Ni Sites
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DOI：
10.1021/jacs.6b05723
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发表时间：
2016-08-03
影响因子：
15
通讯作者：
Dinca, Mircea
中科院分区：
文献类型：
--
作者：
Rieth, Adam J.;Tulchinsky, Yuri;Dinca, Mircea
由扩展的双苯-三氮唑键合成的一系列新的介孔金属-有机骨架(MOF)具有配位的不饱和金属中心，这些金属中心负责对氨的高和可逆吸收。等结构的Mn、Co和Ni材料在STP时分别吸附了15.47、12.00和12.02 mmol/g的NH3。重要的是，这些接近纪录的产能至少在三个周期内是可逆的。这些结果表明，氮化物MOF具有足够的热稳定性和化学稳定性，可以用于可回收的吸附、储存和潜在的分离化学挑战和/或腐蚀性气体，特别是当设计为展示高密度的开放金属中心时。
A series of new mesoporous metal-organic frameworks (MOFs) made from extended bisbenzene-triazolate linkers exhibit coordinatively unsaturated metal sites that are responsible for high and reversible uptake of ammonia. Isostructural Mn, Co, and Ni materials adsorb 15.47, 12.00, and 12.02 mmol of NH3/g, respectively, at STP. Importantly, these near-record capacities are reversible for at least three cycles. These results demonstrate that azolate MOFs are sufficiently thermally and chemically stable to find uses in recyclable sorption, storage, and potentially separation of chemically challenging and/or corrosive gases, especially when designed to exhibit a high density of open metal sites.