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Recent Advances in the Unconventional Design of Electrochemical Energy Storage and Conversion Devices

Electrochemical Energy Reviews 2022年第4期5卷 38-62页

作者： Senthil Velan Venkatesan Arpita Nandy kunal karan Stephen R.Larter Venkataraman Thangadurai Department of Chemistry University of Calgary2500 University Drive NWCalgaryAB T2N1N4Canada Department of Chemical&Petroleum Engineering University of Calgary2500 University Drive NWCalgaryAB T2N1N4Canada Department of Geoscience University of Calgary2500 University Drive NWCalgaryAB T2N1N4Canada

As the world works to move away from traditional energy sources,effective efficient energy storage devices have become a key factor for *** emergence of unconventional electrochemical energy storage devices,including hybrid batteries,hybrid redox flow cells and bacterial batteries,is part of the *** alternative electrochemical cell configurations provide materials and operating condition flexibility while offering high-energy conversion efficiency and modularity of design-to-design *** power of these diverse devices ranges from a few milliwatts to several ***-ing durable electronic and point-of-care devices is possible due to the development of all-solid-state batteries with efficient electrodes for long cycling and high energy *** batteries made of earth-abundant metal ions are approaching the capacity of lithium-ion *** are being reduced with the advent of flow batteries with engineered redox molecules for high energy density and membrane-free power generating electrochemical cells,which utilize liquid dynamics and interfaces(solid,liquid,and gaseous)for electrolyte *** batteries support electrode regeneration strategies for chemical and bio-batteries reducing battery energy *** batteries have different benefits,e.g.,carbon-neutral Li-CO_(2) batteries consume CO_(2) and generate power,offering dual-purpose energy storage and carbon *** work considers the recent technological advances of energy storage *** transition from conventional to unconventional battery designs is examined to identify operational flexibilities,overall energy storage/conversion efficiency and application ***,a list of facilities for large-scale deployment of major electrochemical energy storage routes is provided.

关键词： Unconventional energy storage Redox flow battery Organic electrolytes Membrane-free flow cell All-solid-state batteries

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Implications of future climate change on crop and irrigation water requirements in a semi-arid river basin using CMIP6 GCMs

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Journal of Arid Land 2022年第11期14卷 1234-1257页

作者： kunal karan Dharmaveer SINGH Pushpendra K SINGH Birendra BHARATI Tarun P SINGH Ronny BERNDTSSON Department of Water Engineering and Management Central University of JharkhandBrambeRanchi 835205India Symbiosis Institute of Geo-informatics Symbiosis International(Deemed University)Pune 411016India Water Resources Systems Division National Institute of HydrologyRoorkee 247667India Division of Water Resources Engineering&Centre for Advanced Middle Eastern Studies Lund UniversityLund Box 11722100Sweden

Agriculture faces risks due to increasing stress from climate change,particularly in semi-arid *** of understanding of crop water requirement(CWR)and irrigation water requirement(IWR)in a changing climate may result in crop failure and socioeconomic problems that can become detrimental to agriculture-based economies in emerging nations *** research in CWR and IWR has largely focused on large river basins and scenarios from the Coupled Model Intercomparison Project Phase 3(CMIP3)and Coupled Model Intercomparison Project Phase 5(CMIP5)to account for the impacts of climate change on *** basins,however,are more susceptible to regional climate change,with more significant impacts on *** study estimates CWRs and IWRs for five crops(sugarcane,wheat,cotton,sorghum,and soybean)in the Pravara River Basin(area of 6537 km^(2))of India using outputs from the most recent Coupled Model Intercomparison Project Phase 6(CMIP6)General Circulation Models(GCMs)under Shared Socio-economic Pathway(SSP)245 and SSP585 *** increase in mean annual rainfall is projected under both scenarios in the 2050s and 2080s using ten selected CMIP6 *** for all crops may decline in almost all of the CMIP6 GCMs in the 2050s and 2080s(with the exceptions of ACCESS-CM-2 and ACCESS-ESM-1.5)under SSP245 and SSP585 *** availability of increasing soil moisture in the root zone due to increasing rainfall and a decrease in the projected maximum temperature may be responsible for this decline in ***,except for soybean and cotton,the projected IWRs for all other three crops under SSP245 and SSP585 scenarios show a decrease or a small increase in the 2050s and 2080s in most CMIP6 *** findings are important for agricultural researchers and water resource managers to implement long-term crop planning techniques and to reduce the negative impacts of climate change and associated rainfall variability to avert crop failure and agricultural

关键词： climate change crop water requirement irrigation water requirement CMIP6 GCMs emission scenario Pravara River Basin

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Identification, Characterization and Evaluation of Crystal Forms of Quinine Sulphate

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Pharmacology & Pharmacy 2012年第2期3卷 129-138页

作者： Maninder karan Renu Chadha kunal Chadha Poonam Arora University Institute of Pharmaceutical Sciences Panjab University Chandigarh India

Crystal engineering concept has been utilized to modify the physico-chemical parameters of a naturally occurring alkaloid, quinine sulphate, by exploring its H-bond interactions to generate different forms. Quinine sulphate is found to exist in four different crystal forms. The Forms I and II depict endo/exo events suggesting conversion of metastable low melting forms to higher melting and stable form indicated by sharp melting endotherms. The low melting form IL is found to be monotropically related to high melting Form IH while low melting Form IIL is enantiotropically related to high melting Form IIH. The Form III and IV showed broad endotherms accompanied by mass loss in TGA prior to melting indicating the existence of solvatomorphism. The solvent molecules are tightly bound in the crystal lattice of the drug molecules which is shown by high values of the binding energies of the solvents in these two forms. The enthalpy of solution was found to be endothermic for all the forms which followed the order: Form O > Form II > Form III > Form I > Form IV and is further related to the lattice energy suggesting Form II to be least crystalline. The solubility for Form II was found to be highest with maximum release rate in dissolution studies. The effectiveness of new polymorphic forms was confirmed by performing in vivo antimalarial activity against P. berghei infection. The studies have shown an increase in antimalarial activity of Form IV concluding a successful development of new polymorphic form.

关键词： Quinine Sulphate Enthalpy Polymorphs Solvates Crystals

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Binding studies of trans-resveratrol with superoxide dismutase (SOD1): Docking assessment and Thermoanalysis

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Journal of Pharmaceutical and Biopharmaceutical Research 2019年第1期1卷 21-27页

作者： Janhvi Dureja Renu Chadha Maninder karan Akshita Jindal kunal Chadha University Institute of Pharmaceutical Sciences Panjab University Chandigarh 160014 India

The binding pursuits of trans-resveratrol(t-RSV),an amazing health supplement are investigated with an antioxidant enzyme,superoxide dismutase(SOD1).The aim of the study is to dock t-RSV on the adrenaline binding site on SOD1 in order to explore its potential to act as a safety net against amyotrophic lateral sclerosis(ALS),a fatal neurodegenerative disorder that affects motor *** silico GLIDE docking methodology and in vitro microcalorimetry technique is utilized for the investigation of binding parameters of t-RSV with *** study provides useful and distinct information about the amino acids involved in the interactions at molecular level along with the nature of forces involved in binding of t-RSV with *** docking analysis using the scoring functions of Schrodinger’s Glide package depicts that GLU100,PRO28,LYS23,TRP32 residues of the peptide backbone on SOD1 interact with phenolic groups of *** information on thermodynamic parameters,*** constant(Kb),free energy(△G)and enthalpy(△H)generated through calorimetric titrations suggests that the reaction between t-RSV and SOD1 is spontaneous and *** the studies are found to be in close agreement with each other based as far as the magnitude of binding constant(Kb=9.9×10^4)is concerned.

关键词： trans-Resveratrol superoxide dismutase docking microcalorimetry binding constant free energy

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