Journal ArticleDOI
Highly controlled acetylene accommodation in a metal–organic microporous material
Ryotaro Matsuda,Ryo Kitaura,Ryo Kitaura,Susumu Kitagawa,Yoshiki Kubota,Rodion V. Belosludov,Tatsuo C. Kobayashi,Hirotoshi Sakamoto,Takashi Chiba,Masaki Takata,Yoshiyuki Kawazoe,Yoshimi Mita +11 more
TLDR
High levels of selective sorption of acetylene molecules as compared to a very similar molecule, carbon dioxide, onto the functionalized surface of a MOM are reported.Abstract:
Metal-organic microporous materials (MOMs) have attracted wide scientific attention owing to their unusual structure and properties, as well as commercial interest due to their potential applications in storage, separation and heterogeneous catalysis. One of the advantages of MOMs compared to other microporous materials, such as activated carbons, is their ability to exhibit a variety of pore surface properties such as hydrophilicity and chirality, as a result of the controlled incorporation of organic functional groups into the pore walls. This capability means that the pore surfaces of MOMs could be designed to adsorb specific molecules; but few design strategies for the adsorption of small molecules have been established so far. Here we report high levels of selective sorption of acetylene molecules as compared to a very similar molecule, carbon dioxide, onto the functionalized surface of a MOM. The acetylene molecules are held at a periodic distance from one another by hydrogen bonding between two non-coordinated oxygen atoms in the nanoscale pore wall of the MOM and the two hydrogen atoms of the acetylene molecule. This permits the stable storage of acetylene at a density 200 times the safe compression limit of free acetylene at room temperature.read more
Citations
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Journal ArticleDOI
Robust Ultramicroporous Metal-Organic Frameworks with Benchmark Affinity for Acetylene.
Yun-Lei Peng,Tony Pham,Pengfei Li,Ting Wang,Yao Chen,Kai-Jie Chen,Katherine A. Forrest,Brian Space,Peng Cheng,Michael J. Zaworotko,Zhenjie Zhang +10 more
TL;DR: Two ultramicroporous metal-organic framework physisorbents, NKMOF-1-M (M=Cu or Ni), offer high hydrolytic stability and benchmark selectivity towards acetylene versus several gases at ambient temperature, and possesses the highest selectivities yet reported for C2 H2 /CO2 and C2H2 /CH4.
Journal ArticleDOI
Experimental Studies and Mechanism Analysis of High-Sensitivity Luminescent Sensing of Pollutional Small Molecules and Ions in Ln4O4 Cluster Based Microporous Metal–Organic Frameworks
TL;DR: In this paper, two 3D lanthanide metal-organic frameworks (Ln-MOFs) based on cubane-shaped [Ln4(μ3-OH)4]8+ clusters were successfully synthesized and fully characterized.
Journal ArticleDOI
A comparison of the H2 sorption capacities of isostructural metal-organic frameworks with and without accessible metal sites: [{Zn2(abtc)(dmf)2}3] and [{Cu2(abtc)(dmf)2}3] versus [{Cu2(abtc)}3].
TL;DR: Even when coordinating solvent molecules are successfully removed with retention of the porous framework structure, the metal ion sometimes transforms its coordination geometry to the thermodynamically most stable form instead of keeping the AMSs.
Journal ArticleDOI
A Porous Framework Polymer Based on a Zinc(II) 4,4‘-Bipyridine-2,6,2‘,6‘-tetracarboxylate: Synthesis, Structure, and “Zeolite-Like” Behaviors
Xiang Lin,Alexander J. Blake,Claire Wilson,Xue Zhong Sun,Neil R. Champness,Michael W. George,Peter Hubberstey,Robert Mokaya,Martin Schröder +8 more
TL;DR: The robust metal-organic framework compound, [Zn(2)(L)](infinity) (II), which has very high thermal stability and is chemically inert, is synthesized by hydrothermal reaction of ZnCl(2) and 4,4'-bipyridine-2,6,2',6'-tetracarboxylic acid.
Journal ArticleDOI
Promotion of Low-Humidity Proton Conduction by Controlling Hydrophilicity in Layered Metal–Organic Frameworks
Masaaki Sadakiyo,Hisashi Okawa,Hisashi Okawa,Akihito Shigematsu,Masaaki Ohba,Teppei Yamada,Hiroshi Kitagawa +6 more
TL;DR: The most hydrophilic sample, Me-FeCr, adsorbed a large number of water molecules and showed a high proton conductivity of ~10(-4) S cm(-1), even at a low humidity of 65% relative humidity (RH), at ambient temperature, which is the highest conductivity among the previously reported proton-conducting MOFs that operate under low RH conditions.
References
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