Bagtache R., Rekhila G., Abdmeziem K. et al. · Materials Science in Semiconductor Processing · 2014 · 144-150
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
Visible-light oxygen evolution is demonstrated without external bias, and sulfite gives the best activity compared with thiosulfate because its band bending is closer to the desired value.
Caveat: Endpoint oxygen volumes are visual estimates from Fig. 10; the reported rate and quantum yield are text values.
1,6 · Abstract; 3.3 Photocatalysis · Fig. 10 · Linked to 5 structured results
The framework is chemically stable for the oxygen-evolution tests only near neutral pH and dissolves in acidic or alkaline media.
Caveat: Long-term dissolved copper is described qualitatively as too small to titrate, not given numerically.
5 · 3.3 Photocatalysis · Linked to 3 structured results
Cu3PO4(C2N3H2)2OH is a single-phase monoclinic layered hybrid framework with alternate Cu-polyhedra layers linked by triazole and PO4 units.
Caveat: Detailed structural analysis is cited to previous work [16], not fully reproduced in this article.
2-3 · 3.1 Physical properties · Figs. 1-2 · Linked to 7 structured results
Mott-Schottky and PEC data identify n-type behaviour, low carrier density and band positions favourable for visible-light oxygen evolution at neutral pH.
Caveat: Band positions are derived from combined optical/electrochemical measurements and author conventions versus SCE/vacuum.
4-6 · 3.2 Photoelectrochemistry; 3.3 Photocatalysis · Figs. 8-9 · Linked to 6 structured results
EIS separates grain-boundary/CPE behaviour at high frequency from a diffusion-controlled process at low frequency.
Caveat: Equivalent-circuit parameters are author-fitted; no raw impedance table is supplied.
6-7 · 3.3 Photocatalysis; 4 Conclusion · Fig. 11 · Linked to 6 structured results
The pristine framework behaves as a non-degenerate semiconductor whose electrical transport is dominated by thermally activated small-polaron hopping.
Caveat: The room-temperature conductivity unit in the text/OCR is ambiguous; the figure axis supports conductivity units.
1,4-5 · Abstract; 3.1 Physical properties; 3.3 Photocatalysis · Fig. 6 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Copper phosphate triazole metal organic framework Cu3PO4(C2N3H2)2OH | Cu3PO4(C2N3H2)2OH; also written Cu3PO4[C2N3H2]2OHCu-polyhedra/Cu dimers connected with PO4 tetrahedra; Cu1-Cu2 layers and Cu3-triazole-Cu3 layers described. · 1,2,4-triazole-derived bridging ligands; phosphate groups also form inorganic connectivity. | 3D · PristineMonoclinic P21/a layered anisotropic structure formed from alternate Cu-polyhedra layers stacked along [001] via triazole and PO4 connections; XRD is single phase. | 1-3 · Abstract; 3.1 Physical properties · Figs. 1-2 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| As-synthesised Cu3PO4(C2N3H2)2OH blue needle-like crystalsresearch_0539__mat__cu_phosphate_triazole_mof | Single Crystal · Target Sample · Pristine Framework | Hydrothermal product recovered by filtration, washed with water and dried at 60 C overnight; blue needle-like crystals of approximately 100 micrometre length. | 2 · 2.1 Synthesis |
| Cu3PO4(C2N3H2)2OH photocatalyst suspensionresearch_0539__mat__cu_phosphate_triazole_mof | Powder · Target Sample · Pristine Framework | 100 mg pristine catalyst immersed in 250 mL fresh aqueous solution containing sulfite or thiosulfate electron scavenger for illuminated oxygen evolution. | 2 · 2.2 Characterization |
| Sintered Cu3PO4(C2N3H2)2OH pellet electroderesearch_0539__mat__cu_phosphate_triazole_mof | Pellet · Target Sample · Pristine Framework | Powder ground in agate mortar, pressed under 5 tons cm-2 into pellets, sintered at 180 C, then contacted with Cu wires/silver paint for electrical and PEC measurements.No external substrate; pellet contacted with copper wires and silver paint, encapsulated in glass holders with epoxy resin. · Pellets of 13 mm diameter and approximately 1 mm thickness; projected surface area 1.32 cm2. | 2 · 2.2 Characterization |