@article { ISI:000261342600009, title = {Correlations of thermodynamic properties of aqueous amino acid-electrolyte mixtures}, journal = {Journal of Solution Chemistry}, volume = {38}, number = {1}, year = {2009}, month = {JAN}, pages = {95-114}, publisher = {SPRINGER/PLENUM PUBLISHERS}, address = {233 SPRING ST, NEW YORK, NY 10013 USA}, abstract = {

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.

}, keywords = {Amino acids, Electrolytes, Pitzer equation, Thermodynamic properties}, issn = {0095-9782}, doi = {10.1007/s10953-008-9355-2}, author = {Saritha, C. and Satpute, Dilip B. and Badarayani, Rohini and Kumar, Anil} } @article {43956, title = {Facile synthesis of β-functionalized {\textquotedblleft}push-pull{\textquotedblright} Zn(II) porphyrins for DSSC applications}, journal = {Dyes and Pigments}, volume = {147}, year = {2017}, month = {DEC}, pages = {56-66}, type = {Journal Article}, abstract = {

Three new β-substituted {\textquotedblleft}push-pull{\textquotedblright} 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{\textendash}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{\textendash}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{\textendash}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.

}, keywords = {charge transfer, Conduction Bands, Cyanoacetic Acid, Electrolytes, Floorescence, Redox Reaction, zinc compounds}, doi = {10.1016/j.dyepig.2017.07.053}, author = {Prakash, K.}, editor = {Manchanda, S.} } @article {48100, title = {Research progress and perspective on lithium/sodium metal anodes for next-generation rechargeable batteries}, journal = {ChemSusChem}, volume = {15}, year = {2022}, month = {JUL}, pages = {e202200504}, type = {Review}, abstract = {

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.

}, keywords = {anode, Batteries, dendrite growth, Electrolytes, Energy storage}, issn = {1864-5631}, doi = {10.1002/cssc.202200504}, author = {Patrike, Apurva and Yadav, Poonam and Shelke, Vilas and Shelke, Manjusha} }