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Hematite nanostruct...
Hematite nanostructures : An old material for a new story. Simultaneous photoelectrochemical oxidation of benzylamine and hydrogen production through Ti doping
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- Mazzaro, Raffaello (author)
- Luleå tekniska universitet,Materialvetenskap
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- Bibi, Sara Boscolo (author)
- Luleå tekniska universitet,Materialvetenskap
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- Natali, Micro (author)
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
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- Bergamini, Giacomo (author)
- Chemistry Department “Giacomo Ciamician”, University of Bologna, Bologna, Italy
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- Morandi, Vittorio (author)
- CNR-IMM Bologna, Bologna, Italy
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- Ceroni, Paola (author)
- Chemistry Department “Giacomo Ciamician”, University of Bologna, Bologna, Italy
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- Vomiero, Alberto (author)
- Luleå tekniska universitet,Materialvetenskap,Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Venezia Mestre, Italy
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(creator_code:org_t)
- Elsevier, 2019
- 2019
- English.
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In: Nano Energy. - : Elsevier. - 2211-2855 .- 2211-3282. ; 61, s. 36-46
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Overall water splitting represents one of the most promising approaches toward solar energy conversion and storage, which is, however, severely challenged by the four-electron/four-proton nature of the oxygen evolution reaction (OER). One option to overcome this issue is to replace OER with a more useful reaction, for simultaneous production of both hydrogen and chemicals of interest. For the purpose, in this paper a cheap, hydrothermally prepared Ti-doped nanostructured hematite photoanode was employed for the first time as highly stable, heterogeneous catalyst for the low bias, efficient and highly selective photoinduced oxidation of benzylamine to N-benzylidenebenzylamine, and for the simultaneous production of hydrogen in a double solvent/environment cell. A preliminary estimate indicates the possibility to obtain a ∼150 μmol h−1 H2 production, with the contemporary production of stoichiometric benzylidene N-benzylamine in a 5 × 5 cm2 area electrode. This study contributes to overcome the 40-year lasting issues limiting the use of hematite in industrial photoelectrochemical sunlight conversion and storage, due to poor performance of hematite and lack of economic value of oxygen production, providing solid evidence for the simultaneous use of hematite in hydrogen production and alternative oxidation reactions of industrial importance.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- Hematite
- Photoelectrochemistry
- Photoanode
- Benzylamine
- Hydrogen
- Experimentell fysik
- Experimental Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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