Electrosynthesis via plasma electrochemistry: generalist dynamical model to explain hydrogen production induced by a discharge over water
| dc.contributor.author | Chiavone Filho, Osvaldo | |
| dc.contributor.author | Lima, Andressa Mota | |
| dc.contributor.author | Nascimento, Jailton Ferreira do | |
| dc.contributor.author | Nascimento, Claudio Augusto Oller | |
| dc.date.accessioned | 2021-11-18T18:47:56Z | |
| dc.date.available | 2021-11-18T18:47:56Z | |
| dc.date.issued | 2019 | |
| dc.description.resumo | Electrosynthesis via electrochemical plasma, a discharge over the surface of liquid water (or plasma cathode), may offer an unprecedented route of synthesis for chemicals and (wind) solar fuels. Describing the physical chemical events underneath plasma/liquid interface (PLI) on a theoretical basis is crucial for enabling a rational designing of chemical synthesis. To address this problem, this work proposes a generalist dynamical model for the nanoreactor, a fraction of nanoliters localized beneath the PLI that features substantially high concentration of hydrated electrons (eaq−), and it screens chemical reaction networks (CRN) related to the synthesis of hydrogen, a model electrosynthesis process. The computational results elucidate two major routes for hydrogen production: (a) in very alkaline media, the water reduction via self-recombination of eaq− [2eaq− + 2H2O → H2 + 2OH−] consumes the majority of eaq−, whereas (b) in very acid media, eaq− is majorly scavenger by the ion Haq+, generating an abnormally high concentration of the radical H•, a precursor for gaseous hydrogen. Additionally, two scenarios are disadvantageous for synthesizing H2. Side reactions with aqueous oxygen and aqueous radical • OH leads to substantial production of O2 − and OH−, respectively. Without loss of generality, the dynamical model proposed in this work is a powerful theoretical frame for understanding and predicting a variety of plasma-induced CRNs, assisting to advance the emerging field of plasma electrochemistry | pt_BR |
| dc.identifier.citation | MOTA-LIMA, Andressa; NASCIMENTO, Jailton Ferreira do; CHIAVONE-FILHO, Osvaldo; NASCIMENTO, Claudio Augusto Oller. Electrosynthesis via Plasma Electrochemistry: generalist dynamical model to explain hydrogen production induced by a discharge over water. The Journal Of Physical Chemistry C, [S.L.], v. 123, n. 36, p. 21896-21912, 12 ago. 2019. American Chemical Society (ACS). Disponível em: https://pubs.acs.org/doi/10.1021/acs.jpcc.9b04777. Acesso em: 21 jun. 2021. https://doi.org/10.1021/acs.jpcc.9b04777. | pt_BR |
| dc.identifier.doi | 10.1021/acs.jpcc.9b04777 | |
| dc.identifier.issn | 1932-7447 | |
| dc.identifier.issn | 1932-7455 | |
| dc.identifier.uri | https://repositorio.ufrn.br/handle/123456789/44947 | |
| dc.language | en | pt_BR |
| dc.publisher | ACS Publications | pt_BR |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Brazil | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/br/ | * |
| dc.subject | Plasma Electrochemistry | pt_BR |
| dc.subject | Model To Explain | pt_BR |
| dc.subject | over Water | pt_BR |
| dc.subject | Electrosynthesis | pt_BR |
| dc.title | Electrosynthesis via plasma electrochemistry: generalist dynamical model to explain hydrogen production induced by a discharge over water | pt_BR |
| dc.type | article | pt_BR |
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