01599nas a2200229 4500008004100000022001400041245008800055210006900143260007500212300001100287490000700298520078500305653001601090653001701106653002001123653002901143100001601172700002301188700002301211700001601234856011901250 2009 eng d a0095-978200aCorrelations of thermodynamic properties of aqueous amino acid-electrolyte mixtures0 aCorrelations of thermodynamic properties of aqueous amino acidel a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScJAN a95-1140 v383 a

Suitable equations have been proposed to correlate thermodynamic properties, like mean ion activity coefficients, volumes and compressibilities, of amino acids in electrolyte solutions. An amino acid-electrolyte-water interaction parameter is extracted from the regression of the amino acid property values in aqueous electrolyte solution that is then transferred to an expression to correlate the properties of the electrolyte in mixtures. The single interaction parameter can successfully correlate the published data on mean ion activity coefficients, apparent molar volumes and compressibilities of amino acids as well as of electrolytes in their aqueous mixtures. The equations are tested against the large number of experimental data sets available in the literature.

10aAmino acids10aElectrolytes10aPitzer equation10aThermodynamic properties1 aSaritha, C.1 aSatpute, Dilip, B.1 aBadarayani, Rohini1 aKumar, Anil uhttps://library.ncl.res.in/content/correlations-thermodynamic-properties-aqueous-amino-acid-electrolyte-mixtures-002343nas a2200277 4500008004100000245009800041210007000139260000800209300001000217490000800227520145200235653002001687653002101707653002101728653001701749653001701766653001901783653001901802100001601821700001801837700001701855700001501872700001501887700002301902856014001925 2017 eng d00aFacile synthesis of β-functionalized “push-pull” Zn(II) porphyrins for DSSC applications0 aFacile synthesis of βfunctionalized pushpull ZnII porphyrins for cDEC a56-660 v1473 a

Three new β-substituted “push-pull” Zn(II) porphyrin dyes with various electron donors at meso-positions and cyanoacetic acid as acceptor at β-position have been designed and synthesized. These porphyrins have been characterized by UV-Vis, Fluorescence, 1H NMR and 13C NMR spectroscopic techniques and cyclic voltammetric studies. The Soret and Q band of Zn(II) porphyrin dyes were found to be red-shifted (30–35 nm) as compared to ZnTPP. The fluorescence quenching and the decrement in quantum yield and lifetime suggest intramolecular charge transfer from donor to acceptor. Zn porphyrins exhibited anodic shift in their first redox potentials (0.03–0.11 V) as compared to ZnTPP. The HOMO-LUMO energy levels of Zn porphyrin dyes were compared with the conduction band of TiO2 and the electrolyte I−/I3 −. The HOMO levels of all the dyes are sufficiently higher than the energy level of electrolyte I−/I3 − and LUMO levels significantly lower than the conduction band of TiO2 which reflect the feasibility of facile electron-transfer. ZnT(Mes)P(CN-COOH) has been co-sensitized with N719 dye to further improve the PCE efficiency. These dyes displayed power conversion efficiency (PCE) of η = 1.72–3.13% where co-sensitized ZnT(Mes)P(CN-COOH) (N719) dye demonstrated maximum PCE efficiency up to 5.35%, with a Jsc of 11.8 mA cm−2, a Voc of 630 mV and a fill factor (FF) of 72% due to better light harvesting capacity.

10acharge transfer10aConduction Bands10aCyanoacetic Acid10aElectrolytes10aFloorescence10aRedox Reaction10azinc compounds1 aPrakash, K.1 aManchanda, S.1 aSudhakar, V.1 aSharma, N.1 aSankar, M.1 aKrishnamoorthy, K. uhttps://library.ncl.res.in/content/facile-synthesis-%CE%B2-functionalized-%E2%80%9Cpush-pull%E2%80%9D-znii-porphyrins-dssc-applications02180nas a2200241 4500008004100000022001400041245011200055210006900167260000800236300001500244490000700259520138600266653001001652653001401662653002001676653001701696653001901713100002001732700001801752700001801770700002101788856012901809 2022 eng d a1864-563100aResearch progress and perspective on lithium/sodium metal anodes for next-generation rechargeable batteries0 aResearch progress and perspective on lithiumsodium metal anodes  cJUL ae2022005040 v153 a

With the development of consumer electronic devices and electric vehicles, lithium-ion batteries (LIBs) are vital components for high energy storage with great impact on our modern life. However, LIBs still cannot meet all the essential demands of rapidly growing new industries. In pursuance of higher energy requirement, metal batteries (MBs) are the next-generation high-energy-density devices. Li/Na metals are considered as an ideal anode for high-energy batteries due to extremely high theoretical specific capacity (3860 and 1165 mAh g(-1) for Li and Na, respectively) and low electrochemical potential (-3.04 V for Li and -2.71 V for Na vs. standard hydrogen electrode). Unfortunately, uncontrolled dendrite growth, high reactivity, and infinite volume change induce severe safety concerns and poor cycle efficiency during their application. Consequently, MBs are far from commercialization stage. This Review represents a comprehensive overview of failure mechanism of lithium/sodium metal anode and its progress for rechargeable batteries through (i) electrolyte optimization, (ii) artificial solid-electrolyte interphase (SEI) layer formation, and (iii) nanoengineering at materials level in current collector, anode, and host. The challenges in current MBs research and potential applications of lithium/sodium metal anodes are also outlined and summarized.

10aanode10aBatteries10adendrite growth10aElectrolytes10aEnergy storage1 aPatrike, Apurva1 aYadav, Poonam1 aShelke, Vilas1 aShelke, Manjusha uhttps://library.ncl.res.in/content/research-progress-and-perspective-lithiumsodium-metal-anodes-next-generation-rechargeable02030nas a2200253 4500008004100000022001400041245010900055210006900164260000800233490000600241520111800247653002201365653002701387653003101414653001701445653003201462100002701494700002401521700003401545700001801579700003001597700002701627856012201654 2023 eng d a2367-093200aModular TiO2-squaraine dyes/electrolyte interface for dye-sensitized solar cells with cobalt electrolyte0 aModular TiO2squaraine dyeselectrolyte interface for dyesensitize cAPR0 v73 a

Strategies to diminish both charge recombination and aggregation of dyes on the photoanode by functionalizing the sensitizer with alkyl groups is the best approach to achieve high dyesensitized solar cell (DSSC) efficiency. Development of such a photoanode with NIR-active dyes which is compatible with a cobalt electrolyte is important to enhance the photovoltaic performance. In this report, alkyl-group-wrapped donor-acceptor-donor (D-A-D) based unsymmetrical squaraine dyes have been used for DSSC device characterization with a cobalt electrolyte. Surface passivation of photoanode was varied systematically by the extent of functionalization with alkyl groups to avoid charge recombination. DSSC device performance of 5.92% was achieved for an alkyl-group-wrapped squaraine dye with a cobalt electrolyte. Hence, appending the alkyl groups on the donor unit of squaraine dyes helps passivating the photoanode, whereas introducing hydrophilic groups provides a leaky surface where oxidized electrolyte species reach the titanium-metal-oxide surface which promotes the charge recombination process.

10acounter-electrode10aDSSC device efficiency10aDye-sensitized solar cells10aElectrolytes10aunsymmetrical squaraine dye1 aSingh, Ambarish, Kumar1 aSudhakar, Vediappan1 aJavaregowda, Bharathkumar, H.1 aBisht, Rajesh1 aKrishnamoorthy, Kothandam1 aNithyanandhan, Jayaraj uhttps://library.ncl.res.in/content/modular-tio2-squaraine-dyeselectrolyte-interface-dye-sensitized-solar-cells-cobalt