Nyowani mwero wegirinhi hydrogen tekinoroji yakaiswa neRice University mainjiniya.
Rice University mainjiniya anogona kutendeuka chiedza chezuva muhydrogen ine rekodhi-kutyora-kugona kushanda zvakanaka nekuda kwemudziyo unobatanidza chizvarwa chinotevera halide perovskite semiconductors* ne electrocatalysts mune imwe chete, yakasimba, inodhura-inoshanda uye scalable mudziyo.
Maererano ne chidzidzo yakadhindwa muNature Communications, mudziyo wakawana 20.8% solar-to-hydrogen shanduko inoshanda.
Iyo tekinoroji nyowani inhanho yakakosha kumberi kwesimba rakachena uye inogona kushanda sepuratifomu yeakasiyana emakemikari maitiro anoshandisa magetsi akakohwewa nezuva kushandura. feedstocks mumafuta.
Iyo lab yemakemikari uye biomolecular mainjiniya Aditya Mohite yakavaka iyo yakabatanidzwa photoreactor vachishandisa anticorrosion barriers iyo inomisa semiconductor kubva mumvura pasina kukanganisa kutamisa maerekitironi.
"Kushandisa chiedza chezuva sechitubu chesimba kugadzira makemikari ndechimwe chezvipingamupinyi zvakakura kune hupfumi hwesimba rakachena," akadaro Austin Fehr, mudzidzi wechiremba wemakemikari uye biomolecular engineering uye mumwe wevanyori vanotungamira muchidzidzo ichi.
“Donzvo redu nderekuvaka zvitanda zvinogoneka munyaya dzehupfumi zvinokwanisa kugadzira mafuta ezuva. Pano, takagadzira hurongwa hunotora chiedza uye hunopedza electrochemical mvura-kupatsanura makemikari pamusoro payo.”
Mudziyo uyu unozivikanwa se photoelectrochemical cell nekuti kupfekwa kwechiedza, kushandurwa kwayo kuita magetsi uye kushandiswa kwemagetsi kupa simba kemikari inoitika zvese zvinoitika mumudziyo mumwe chete. Kusvika ikozvino, kushandisa photoelectrochemical tekinoroji kugadzira green hydrogen kwakakanganiswa nekuderera kwekuita uye kudhura kwakanyanya kwemasemiconductors.
"Midziyo yese yerudzi urwu inoburitsa hydrogen yakasvibirira ichishandisa chiedza chezuva nemvura chete, asi yedu yakasarudzika nekuti ine rekodhi-kutyora-inoshanda uye inoshandisa semiconductor iyo yakachipa zvakanyanya," Fehr akadaro.
The Mohite lab uye vabatsiri vayo vakagadzira mudziyo nekushandura yavo yakanyanya-kukwikwidza solar cell mu reactor inogona kushandisa simba rakakohwewa kupatsanura mvura kuita oxygen nehydrogen.
Dambudziko ravaifanira kukunda nderekuti halide perovskites* haina kugadzikana zvakanyanya mumvura uye machira aishandiswa kuvhara masemiconductors aiguma ave kukanganisa basa rawo kana kuakuvadza.
“Mumakore maviri adarika, takaenda nekudzoka tichiedza michina nehunyanzvi hwakasiyana,” akadaro Michael Wong, Injiniya yemakemikari eRice uye munyori pamwe chete pakudzidza.
Mushure mekuedza kwenguva refu kutadza kuburitsa mhedzisiro yaidiwa, vaongorori vakazowana mhinduro yakakunda.
"Kunzwisisa kwedu kwakakosha kwaiva kuti iwe waida zvidimbu zviviri kune chipingamupinyi, chimwe chekuvhara mvura uye chimwe chekuita magetsi akanaka pakati pe perovskite layers uye chidziviriro chekudzivirira," akadaro Fehr.
"Migumisiro yedu ndiyo inonyanya kushanda yephotoelectrochemical masero asina kutenderera kwezuva, uye yakanyanya kunaka kune avo vanoshandisa halide perovskite semiconductors.
"Ndeyekutanga kumunda wagara uchitongwa nemasemiconductors anodhura zvakanyanya, uye unogona kumiririra nzira yekugoneka kwekutengesa kwerudzi urwu rwechigadzirwa kekutanga," Fehr akadaro.
Vatsvagiri vacho vakaratidza dhizaini yavo yekuvharira yakashanda kune akasiyana maitiro uye nemasemiconductors akasiyana, zvichiita kuti ishande kune akawanda masisitimu.
"Tinotarisira kuti masisitimu akadaro achashanda senzvimbo yekutyaira maerekitironi akasiyana-siyana kuti aite mafuta ekugadzira mafuta achishandisa chikafu chakawanda chine chiedza chezuva chete sechipo chesimba," akadaro Mohite.
"Nekuwedzera kwekuvandudzwa kwekugadzikana uye chiyero, teknolojia iyi inogona kuzarura hupfumi hwehydrogen uye kuchinja nzira iyo vanhu vanoita nayo zvinhu kubva kune fossil mafuta kusvika kune mafuta ezuva," Fehr akawedzera.
Perovskite - Iyi mineral ine yakakwirira conductivity kupfuura silicon uye haina kusimba. Zvakawanda zvakare zvakanyanya paNyika. Mumakore gumi apfuura, kuedza kukuru kwakatungamira kune zvinoshamisa zviitiko, asi kutorwa kwayo mune ramangwana optoelectronics kunoramba kuri dambudziko.
Perovskite photovoltaic masero haasati agadzikana uye anochembera nguva isati yakwana. Uyezve, iwo ane mutobvu, chinhu chinokuvadza zvakatipoteredza uye hutano hwevanhu. Nezvikonzero izvi, mapaneru haagone kutengeswa.
Halogenated hybrid perovskites ikirasi yezvigadzirwa zve semiconductor izvo zvanga zviri kutarisisa kutsvagurudza mumakore achangopfuura kune yavo inoshamisa photoelectric zvivakwa uye mashandisiro avo mu photovoltaic system.
