排序方式: 共有18条查询结果,搜索用时 15 毫秒
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Lu W Yuan D Sculley J Zhao D Krishna R Zhou HC 《Journal of the American Chemical Society》2011,133(45):18126-18129
A porous polymer network (PPN) grafted with sulfonic acid (PPN-6-SO(3)H) and its lithium salt (PPN-6-SO(3)Li) exhibit significant increases in isosteric heats of CO(2) adsorption and CO(2)-uptake capacities. IAST calculations using single-component-isotherm data and a 15/85 CO(2)/N(2) ratio at 295 K and 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high adsorption selectivity for CO(2) over N(2) (155 and 414 for PPN-6-SO(3)H and PPN-6-SO(3)Li, respectively). Since these PPNs also possess ultrahigh physicochemical stability, practical applications in postcombustion capture of CO(2) lie well within the realm of possibility. 相似文献
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Fang QR Yuan DQ Sculley J Lu WG Zhou HC 《Chemical communications (Cambridge, England)》2012,48(2):254-256
A stable MOF, assigned PCN-105, with two types of mesoporous cages, has been prepared by using a new multidentate flexible ligand with amine functional groups, and PCN-105 exhibits a marked N(2), O(2), Ar and H(2) hysteretic behaviour. 相似文献
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Jian-Rong Li Yuguang Ma M. Colin McCarthy Julian Sculley Jiamei Yu Hae-Kwon Jeong Perla B. Balbuena Hong-Cai Zhou 《Coordination chemistry reviews》2011,255(15-16):1791-1823
Reducing anthropogenic CO2 emission and lowering the concentration of greenhouse gases in the atmosphere has quickly become one of the most urgent environmental issues of our age. Carbon capture and storage (CCS) is one option for reducing these harmful CO2 emissions. While a variety of technologies and methods have been developed, the separation of CO2 from gas streams is still a critical issue. Apart from establishing new techniques, the exploration of capture materials with high separation performance and low capital cost are of paramount importance. Metal-organic frameworks (MOFs), a new class of crystalline porous materials constructed by metal-containing nodes bonded to organic bridging ligands hold great potential as adsorbents or membrane materials in gas separation. In this paper, we review the research progress (from experimental results to molecular simulations) in MOFs for CO2 adsorption, storage, and separations (adsorptive separation and membrane-based separation) that are directly related to CO2 capture. 相似文献
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