H

HHaber,Fritz321●HHH-cell—isadividedelectrochemicalcell,namedaf-teritssimilaritywithletterH.Itprincipallyconsistsoftwocompartments,connectedthroughadiaphragm.AmodificationorspecialH-typedesignisthe�Lin-ganecell[i],developedforusewithmercuryelectrodeswithinathree-electrodesetup.GlassH-cellsarecom-merciallyavailable,butmayneverthelessbeeasilycon-structedinalaboratory,asshowninthefigure[ii].H-cell—FigureWithminormodifications,thesetupcanalsobeusedwithasolidworkingelectrode,orfornonaqueouselec-trolytesolutions.H-cellswithsolidplaneparallelelec-trodesofthesameareaarefrequentlyutilizedforworkinanhydrousmedia,alsosincetheyprovideauniformcurrentdistribution.Asmalldistancebetweentheelec-trodes,notonlyforthiscelldesign,makesthemsuitableforworkinmediaoflowelectricalconductivity.Thecelldesigncanbeusedforelectrolysisinliquidammonia,ifaconnectionbetweentheanodeandcathodecompart-mentabovethesolutionlevelisensured,toequilibratethepressureinthesystem[iii].Refs.:[i]LinganeJJ,GardnerSwainC,FieldsM()JA