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简介：Carbonclothmodifiedbyhydrothermaltreatmentinammoniawaterisdevelopedasthepositiveelectrodewithhighelectrochemicalperformanceforvanadiumredoxflowbatteries.TheSEMshowsthatthetreatmenthasnoobviousinfluenceonthemorphologyofcarboncloth.XPSmeasurementsindicatethatthenitrogenousfunctionalgroupscanbeintroducedonthesurfaceofcarbonclothsuccessfully.TheelectrochemicalperformanceofV（IV）/V（V）redoxcoupleonthepreparedelectrodeisevaluatedwithcyclicvoltammetryandlinearsweepvoltammetrymeasurements.TheN-dopedcarbonclothexhibitsoutstandingelectrochemicalactivityandreversibilitytowardV（IV）/V（V）redoxcouple.TherateconstantofV（IV）/V（V）redoxreactiononcarbonclothcanincreaseto2.27×10-4cm/sfrom1.47×10-4cm/safternitrogendoping.ThecellusingN-dopedcarbonclothaspositiveelectrodehaslargerdischargecapacityandhigherenergyefficiencycomparedwiththecellusingpristinecarboncloth.TheaverageenergyefficiencyofthecellusingN-dopedcarbonclothfor50cyclesat30mA/cm2is87.8%,4.3%largerthanthatofthecellusingpristinecarboncloth.ItindicatesthattheN-dopedcarbonclothhasapromiseapplicationprospectinvanadiumredoxflowbatteries.

简介：ZnOnanoconearrays(NCAs)decoratedwithblackTiO2nanoparticles(BTiO2NPs)wereuniformlyanchoredonthesurfaceofcarboncloth(CC)directlybyasimplyelectrochemicaldepositionmethod.ThusanovelB-TiO2NPs/ZnONCAs-CChierarchicalheterostructurewasformed.Itdisplayedsuperiorperformanceandachievedahigherphotocurrentover0.4mA·cm^-2beforetheonsetofthedarkcurrent,attributedtotheseparationofthephotogeneratedelectron-holepair.BasedontheB-TiO2NPs/ZnONCAs-CCheterostructure,thecatalystwasfabricatedforpromotingtheseparationofchargecarriers.Moreover,theintroductionofTi^3+andoxygenvacanciesonthesurfaceofTiO2NPsexpandedtheabsorptionbandedgeandenhancedtheelectricalconductivityaswellasthechargetransportationonthecatalyticsurface.ItindicatesthattheB-TiO2NPs/ZnONCAs-CCcompositeisbeneficialtotheimprovementofthephotoelectrochemical(PEC)activity.

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简介：Forthefirsttime,WO2.72nanowireswerein-situgrownoncarbonclothbyasimplesolvothermalreaction.ThenanowireWO2.72/carboncloth(NWWO2.72/CC)electrodeshowedgoodelectrochemicalperformancewithspecificcapacitance(Cs)reachingupto398Fg-1atacurrentdensityof2Ag-1.Thecapacitanceof240Fg-1wasretainedatahighcurrentdensityof16Ag-1.Tofurtherevaluatetheenergystorageperformance,flexibleasymmetricsupercapacitors(FASCs)werefabricatedusingtheactivatedcarbon/carboncloth(AC/CC)asnegativeelectrodeandNWWO2.72/CCaspositiveelectrode,respectively.TheFASCsdeliveredahighenergydensityof28Whkg-1atapowerdensityof745Wkg-1and13Whkg-1evenatahighpowerdensityof22.5kWkg-1.Moreimpressively,81%ofthespecificcapacitanceoftheFASCswasretainedafter10,000cycles,indicatingexcellentcyclestability.ThisworkindicatestheNWWO2.72/CCholdsagreatpotentialforapplicationinenergystoragedevices.

简介：《剑桥欧洲经济史》是西方影响远播的经济史力作，资料详实，论述全而，视野开阔。诚如“译序”所言：《剑桥欧经济史》“本身是研究欧洲的经济发展进程的，但又不仅仅局限于欧洲国家，而是由此向外延伸至南北美洲、澳大利亚以及远东的日本、中国以及印度等，