Masu bincike sun gabatar da sabuwar dabara don haɓaka ayyukan haɓakawa ta amfani da tungsten suboxide azaman mai haɓakawa guda ɗaya (SAC). Wannan dabarar, wacce ke inganta haɓakar haɓakar haɓakar hydrogen (HER) a cikin ƙarfe na platinum (pt) da sau 16.3, tana ba da haske kan haɓaka sabbin fasahohin haɓaka na lantarki.

An yi la'akari da hydrogen a matsayin madadin man fetur mai ban sha'awa. Koyaya, yawancin hanyoyin samar da hydrogen na masana'antu na al'ada suna zuwa tare da lamuran muhalli, suna fitar da adadi mai yawa na carbon dioxide da iskar gas.

Ana ɗaukar tsagawar ruwa na lantarki a matsayin wata hanya mai yuwuwa don samar da hydrogen mai tsabta. Pt yana ɗaya daga cikin abubuwan da aka fi amfani da su don haɓaka aikin HER a cikin rarrabuwar ruwa na lantarki, amma tsada da ƙarancin Pt ya kasance babban cikas ga aikace-aikacen kasuwanci da yawa.

SACs, inda duk nau'in ƙarfe ke watsewa daban-daban akan kayan tallafi da ake so, an gano su azaman hanya ɗaya don rage yawan amfani da Pt, yayin da suke ba da matsakaicin adadin faɗuwar atom na Pt.

An yi wahayi zuwa ga binciken da aka yi a baya, wanda ya fi mayar da hankali kan SACs da ke tallafawa da kayan da ake amfani da su na carbon, ƙungiyar bincike ta KAIST karkashin jagorancin Farfesa Jinwoo Lee daga Sashen Kimiyya da Biomolecular Engineering sun binciki tasirin kayan tallafi akan aikin SACs.

Farfesa Lee da masu bincikensa sun ba da shawarar mesoporous tungsten suboxide a matsayin sabon kayan tallafi don tarwatsawar Pt, saboda ana tsammanin wannan zai ba da babban ƙarfin lantarki kuma yana da tasirin daidaitawa tare da Pt.

Sun kwatanta aikin Pt guda-atom wanda ke tallafawa ta carbon da tungsten suboxide bi da bi. Sakamakon ya nuna cewa tasirin goyon bayan ya faru ne tare da tungsten suboxide, wanda yawancin ayyukan Pt guda-atom da ke goyon bayan tungsten suboxide ya kasance sau 2.1 fiye da na Pt guda ɗaya wanda ke goyon bayan carbon, kuma sau 16.3 ya fi na Pt. nanoparticles da ke tallafawa ta carbon.

Ƙungiyar ta nuna canji a tsarin lantarki na Pt ta hanyar canja wurin caji daga tungsten suboxide zuwa Pt. An ba da rahoton wannan al'amari ne sakamakon ƙaƙƙarfan hulɗar tallafin ƙarfe tsakanin Pt da tungsten suboxide.

Ayyukanta za a iya inganta ba kawai ta hanyar canza tsarin lantarki na ƙarfe mai goyan baya ba, har ma ta hanyar haifar da wani tasiri na tallafi, tasirin zubar da jini, ƙungiyar bincike ta ruwaito. Ruwan hydrogen wani al'amari ne inda hydrogen ɗin da aka ɗora yana ƙaura daga wannan saman zuwa wancan, kuma yana faruwa da sauƙi yayin da girman Pt ya zama ƙarami.

Masu binciken sun kwatanta aikin Pt guda-atom da Pt nanoparticles da ke goyon bayan tungsten suboxide. Pt guda-atom ɗin da ke goyan bayan tungsten suboxide ya nuna babban mataki na abin da ya faru na zubewar hydrogen, wanda ya haɓaka yawan ayyukan Pt don juyin halittar hydrogen har zuwa sau 10.7 idan aka kwatanta da Pt nanoparticles da ke goyon bayan tungsten suboxide.

Farfesa Lee ya ce, "Zaɓin kayan tallafi da ya dace yana da mahimmanci don haɓaka electrocatalysis a samar da hydrogen. Tungsten suboxide mai kara kuzari da muka yi amfani da su don tallafawa Pt a cikin bincikenmu yana nuna cewa hulɗar tsakanin ƙarfe da aka daidaita da tallafi na iya haɓaka ingantaccen tsarin.