Počet záznamů: 1
Silicon Nanowires´ Based Photoanode for Efficient Hydrogen Evolution.
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SYSNO ASEP 0497723 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Silicon Nanowires´ Based Photoanode for Efficient Hydrogen Evolution. Tvůrce(i) Dytrych, Pavel (UCHP-M) RID, ORCID, SAI
Dřínek, Vladislav (UCHP-M) RID, ORCID, SAI
Bumba, Jakub (UCHP-M) SAI
Kaštánek, František (UCHP-M) RID, SAI, ORCID
Šolcová, Olga (UCHP-M) RID, ORCID, SAIZdroj.dok. International Journal of Hydrogen Energy. - : Elsevier - ISSN 0360-3199
Roč. 43, č. 39 (2018), s. 18136-18141Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova hydrogen storage ; hydrogen evolution reaction ; metal nanoparticles Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP GA15-14228S GA ČR - Grantová agentura ČR EF16_027/0007931 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000446949400008 EID SCOPUS 85053545811 DOI 10.1016/j.ijhydene.2018.04.244 Anotace The solar driven photo-electrolysis of water for hydrogen and nanoparticles formation from electrolyte with corresponding metal salts was investigated. The photoanode consisted of a thin layer of silicon nanowires deposited on molybdenum and a platinum wire as the cathode was used. The prepared photo-anodes were stable up to 0.3 V against the saturated Ag/AgCl electrode without any signs of gaseous oxygen evolution. This photo-electrochemical system enhanced the nanoparticle formation during the illumination phase accompanied with lowering the external potential needed. The present results show that the hydrogen in statu nascendii is formed during the illumination of photoanode, which causes the formation of nanoparticles by reduction of metal salts. During the photo drive electrolysis is the hydrogen stored in/on forming nanoparticles. The size of nanoparticles can be determined by time and an external bias value inserted between the working and platinum electrode in a classical three electrode system. It was confirmed that the formation of nanoparticles was limited by diffusional processes of hydrogen in statu nascendii in electrolyte, which is in agreement with literature. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2019
Počet záznamů: 1