dc.creator | Long B., Yang H., Li M., Balogun M.-S., Mai W., Ouyang G., Tong Y., Tsiakaras P., Song S. | en |
dc.date.accessioned | 2023-01-31T08:55:24Z | |
dc.date.available | 2023-01-31T08:55:24Z | |
dc.date.issued | 2019 | |
dc.identifier | 10.1016/j.apcatb.2018.10.039 | |
dc.identifier.issn | 09263373 | |
dc.identifier.uri | http://hdl.handle.net/11615/75995 | |
dc.description.abstract | Semiconducting materials are considered as excellent electrocatalysts for electrochemical water splitting; however, there is still a lack of relevant design and understanding of semiconducting composite electrodes. Here, a monolithic electrode composed of etched copper foam and p-n heterojunction (p-type Cu2O layer and n-type TiO2 nanodots with excellent hydrophilicity) is successfully prepared. This can reduce the electron transfer resistance, optimize water and H adsorption on catalyst surface and generate a space-charge region in phase interface, enhancing the local electrons density of Cu2O, which is proved by experimental results and density functional theory (DFT). Owing to the whole accelerated Volmer-Heyrovsky pathway, the as-prepared heterojunction electrode exhibits low onset potential (18 mV), high electrocatalytic activity (a potential of 114 mV at 10 mA cm−2) and long-term stability for hydrogen evolution reaction in alkaline media that is comparable to that of Pt, enabling the large scale fabrication. © 2018 Elsevier B.V. | en |
dc.language.iso | en | en |
dc.source | Applied Catalysis B: Environmental | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055731616&doi=10.1016%2fj.apcatb.2018.10.039&partnerID=40&md5=2a2f6042ee152aae09fbe4c9ddca1849 | |
dc.subject | Copper | en |
dc.subject | Copper oxides | en |
dc.subject | Density functional theory | en |
dc.subject | Design for testability | en |
dc.subject | Electrocatalysts | en |
dc.subject | Heterojunctions | en |
dc.subject | Hydrogen | en |
dc.subject | Hydrogen evolution reaction | en |
dc.subject | Nanodots | en |
dc.subject | Oxide minerals | en |
dc.subject | Phase interfaces | en |
dc.subject | Titanium dioxide | en |
dc.subject | Electrocatalytic activity | en |
dc.subject | Electron-transfer resistance | en |
dc.subject | Interface charge | en |
dc.subject | Large scale preparation | en |
dc.subject | Large-scale fabrication | en |
dc.subject | P-n heterojunctions | en |
dc.subject | Semiconducting materials | en |
dc.subject | Space charge regions | en |
dc.subject | Electrochemical electrodes | en |
dc.subject | Elsevier B.V. | en |
dc.title | Interface charges redistribution enhanced monolithic etched copper foam-based Cu2O layer/TiO2 nanodots heterojunction with high hydrogen evolution electrocatalytic activity | en |
dc.type | journalArticle | en |