01828nas a2200181   4500008004100000245013300041210006900174260000800243300001400251520110400265100002001369700002401389700002301413700001801436700003201454700003001486856013001516       2016                        eng d00a10000-Fold enhancement in proton conduction by doping of cesium ions in a proton-conducting zwitterionic metal-organic framework0 a10000Fold enhancement in proton conduction by doping of cesium i  cSEP  a4382-43863 aDeveloping metal-organic framework (MOF)-based proton-conducting electrolytes for fuel-cell applications is an important target that has drawn a lot of attention. A key approach involves the selective replacement of the guest species within the pores to enhance performance. The modular and crystalline nature of the MOF permits controlled introduction of such species and characterization of their compositions with high precision, a task which is very difficult to achieve in amorphous polymers. Herein, we partially replaced the protons of a zwitterionic pyridinol in Mg(terephthalate)(pyridinol) MOF 1 with Cs+ ions, which brought about a 10000-fold increase in the proton conductivity (10(-6) to 10(-2) S cm(-1)). Interestingly, Li+ ions could not be loaded, whereas Cs+ ions with smaller hydrated ionic radii could be loaded, and the loading was controlled as a function of time. The Cs+ loading nearly halved the activation energy (from 0.35 for 1 to 0.19 eV for _Cs). The highest conductivities were realized for an optimal loading of Cs+ ions, which was found to be about 10 % in this case.1 aShalini, Sorout1 aAggarwal, Shubhangi1 aSingh, Santosh, K.1 aDutt, Malvika1 aAjithkumar, Thallaseril, G.1 aVaidhyanathan, Ramanathan  uhttps://library.ncl.res.in/content/10000-fold-enhancement-proton-conduction-doping-cesium-ions-proton-conducting-zwitterionic01617nas a2200241   4500008004100000245005000041210004900091260000800140300001600148490000700164520091300171100002201084700002201106700001801128700001801146700001801164700003201182700001901214700001601233700002001249700002401269856008201293       2017                        eng d00aMulti-mode hydrogen storage in nanocontainers0 aMultimode hydrogen storage in nanocontainers  cAUG  a24256-242620 v423 aHydrogen can be stored in containers or in materials (in molecular or atomic forms). The atomic form can further exist as multiple phases. Molecular hydrogen can be adsorbed on the surface or can be present inside the material. By invoking multiple modes of hydrogen storage, we establish a paradigm shift in the philosophy of hydrogen storage. Using a novel strategy of storage of molecular hydrogen in metal (Pd) nanocontainers, we observe that 18% hydrogen is in molecular form. Interestingly, this is achieved at 25 °C and 1 atm pressure; which is in contrast to storage in MOFs and carbonaceous materials like nanotubes. Enhancement in storage capacity as compared to Pd nanocrystals of the same mass is observed (36% increase at 1 atm & 25 °C), along with fast kinetics (0.5 wt% hydrogen absorption in 5 s). A new mechanism for hydrogen storage involving the dual catalytic role of Pd is established.1 aShervani, Suboohi1 aMukherjee, Puspal1 aGupta, Anshul1 aMishra, Gargi1 aIllath, Kavya1 aAjithkumar, Thallaseril, G.1 aSivakumar, Sri1 aSen, Pratik1 aBalani, Kantesh1 aSubramaniam, Anandh  uhttps://library.ncl.res.in/content/multi-mode-hydrogen-storage-nanocontainers