Masana kimiyya sun dade da sanin cewa platinum shine mafi kyawun abin da ke haifar da tsaga kwayoyin ruwa don samar da iskar hydrogen.Wani sabon binciken da masu binciken Jami'ar Brown suka yi ya nuna dalilin da yasa platinum ke aiki sosai-kuma ba shine dalilin da aka zaci ba.

Binciken, wanda aka buga a ACS Catalysis, yana taimakawa wajen warware tambayar bincike na kusan karni, in ji marubuta.Kuma zai iya taimakawa wajen ƙirƙira sababbin abubuwan da za su iya samar da hydrogen waɗanda suke da rahusa kuma mafi yawa fiye da platinum.Hakan na iya taimakawa a ƙarshe wajen rage hayaƙi daga albarkatun mai.

"Idan za mu iya gano yadda ake yin hydrogen cikin rahusa da inganci, hakan yana buɗe kofa ga ɗimbin hanyoyin samar da mafita ga burbushin mai da sinadarai marasa amfani," in ji Andrew Peterson, mataimakin farfesa a Makarantar Injiniya ta Brown kuma babban marubucin binciken. .“Ana iya amfani da hydrogen a cikin sel mai, haɗe da wuce haddi CO2 don yin mai ko a haɗa shi da nitrogen don yin takin ammonia.Akwai abubuwa da yawa da za mu iya yi da hydrogen, amma don sanya ruwa ya zama tushen iskar hydrogen, muna buƙatar mai kara kuzari mai rahusa."

Zayyana sabbin abubuwa masu kara kuzari ya fara ne da fahimtar abin da ya sa platinum ya zama na musamman ga wannan dauki, in ji Peterson, kuma abin da wannan sabon binciken ke da nufin gano ke nan.

Nasarar Platinum an daɗe ana danganta shi da “Goldilocks” mai ɗaurin kuzari.Ingantattun abubuwan haɓakawa suna riƙe da mayar da martani ga kwayoyin halitta ba sako-sako ba ko tamsu, amma wani wuri a tsakiya.Daure kwayoyin halitta da sako-sako kuma yana da wahala a fara wani dauki.Daure su da kyau sosai kuma kwayoyin suna mannewa saman mai kara kuzari, yana mai da wahalar kammalawa.Ƙarfin dauri na hydrogen akan platinum kawai yana faruwa ne don daidaita daidaitattun sassa biyu na amsawar ruwa - don haka yawancin masana kimiyya sunyi imani cewa sifa ce ta sa platinum yayi kyau sosai.

Amma akwai dalilai na tambayar ko wannan hoton yayi daidai, in ji Peterson.Alal misali, wani abu da ake kira molybdenum disulfide (MoS2) yana da makamashi mai ɗaure kama da platinum, duk da haka ya kasance mafi muni da ke haifar da amsawar ruwa.Wannan yana nuna cewa haɗa ƙarfi ba zai iya zama cikakken labarin ba, in ji Peterson.

Don gano abin da ke faruwa, shi da abokan aikinsa sun yi nazari kan yadda ruwa ya raba kan masu kara kuzari ta hanyar amfani da wata hanya ta musamman da suka ɓullo da su don kwaikwayi halayen ɗaiɗaikun atom da electrons a cikin halayen lantarki.

Binciken ya nuna cewa atom ɗin hydrogen da ke daure a saman platinum a “Goldilocks” mai ɗaurin makamashi ba sa shiga cikin abin da ya faru kwata-kwata lokacin da yawan abin ya yi yawa.Madadin haka, suna zaune a cikin saman lu'u-lu'u na platinum, inda suke zama masu kallo.Atom ɗin hydrogen da ke shiga cikin aikin sun fi ƙarfin da ake tsammani "Goldilocks" daure.Kuma maimakon yin gida a cikin lattice, suna zaune a saman atom ɗin platinum, inda suke da 'yanci don saduwa da juna don samar da iskar H2.

Wannan 'yancin motsi ne na atom ɗin hydrogen a saman wanda ke sa platinum ya zama mai ƙarfi, masu binciken sun kammala.

"Abin da wannan ya gaya mana shi ne cewa neman wannan 'Goldilocks' makamashi mai ɗaure ba shine ka'idar ƙirar da ta dace ba don babban aiki," in ji Peterson."Muna ba da shawarar cewa zayyana abubuwan da ke sanya hydrogen a cikin wannan yanayin wayar hannu da amsawa shine hanyar da za a bi."