Synthesis and crystal structure of δ-TaON, a metastable polymorph of tantalum oxide nitride
| dc.contributor.author | Lüdtke, Tobias Clemens | |
| dc.contributor.author | Schmidt, Alexander | |
| dc.contributor.author | Göbel, Caren | |
| dc.contributor.author | Fischer, Anna | |
| dc.contributor.author | Becker, Nils | |
| dc.contributor.author | Reimann, Christoph | |
| dc.contributor.author | Bredow, Thomas | |
| dc.contributor.author | Dronskowski, Richard | |
| dc.contributor.author | Lerch, Martin | |
| dc.date.accessioned | 2017-12-23T11:21:42Z | |
| dc.date.available | 2017-12-23T11:21:42Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | δ-TaON was prepared by reaction of gaseous ammonia with an amorphous tantalum oxide precursor. As a representative of the anatase structure (aristotype) it crystallizes in the tetragonal crystal system with lattice parameters a = 391.954(16) pm and c = 1011.32(5) pm. At temperatures between 800 and 850 °C an irreversible phase transformation to baddeleyite-type β-TaON is observed. While quantum-chemical calculations confirm the metastable character of δ-TaON, its transformation to β-TaON is kinetically controlled. The anion distribution of the anatase-type phase was studied theoretically. In agreement with previous studies, it was found that a configuration with maximal N–N distances is most stable. The calculated band edge energies indicate that δ-TaON is a promising photocatalytic material for redox reactions, e.g., water splitting. | en |
| dc.identifier.issn | 1520-510X | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/7303 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-6576 | |
| dc.language.iso | en | en |
| dc.relation.ispartof | 10.14279/depositonce-6027 | |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.ddc | 546 Anorganische Chemie | de |
| dc.subject.other | δ-TaON | en |
| dc.subject.other | metastable polymorph | en |
| dc.subject.other | tantalum oxide nitride | en |
| dc.title | Synthesis and crystal structure of δ-TaON, a metastable polymorph of tantalum oxide nitride | en |
| dc.type | Article | en |
| dc.type.version | acceptedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1021/ic501726m | en |
| dcterms.bibliographicCitation.issue | 21 | en |
| dcterms.bibliographicCitation.journaltitle | Inorganic chemistry | en |
| dcterms.bibliographicCitation.originalpublishername | American Chemical Society | en |
| dcterms.bibliographicCitation.originalpublisherplace | Washington, DC | en |
| dcterms.bibliographicCitation.pageend | 11698 | en |
| dcterms.bibliographicCitation.pagestart | 11691 | en |
| dcterms.bibliographicCitation.volume | 53 | en |
| tub.accessrights.dnb | domain | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Chemie::FG Anorganische Chemie - Festkörper- und Materialchemie | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | FG Anorganische Chemie - Festkörper- und Materialchemie | de |
| tub.affiliation.institute | Inst. Chemie | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |