Murakami W., Kitayama T., Chiba Y. et al. · Journal of Materials Chemistry A · 2025 · 25724-25731
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.
Cu-TCHT@Maxsorb shows superior CO2 reduction activity relative to Cu-BHT@Maxsorb, attributed to improved guest accessibility to metal centres from the vertical ligand honeycomb structure.
Caveat: CO2RR samples are Maxsorb composites, so application performance is not a pristine-framework-only measurement.
25729 · CO2RR electrocatalytic performance · Fig. 6c; Table S6 · Linked to 6 structured results
Cu-TCHT adopts a porous honeycomb 2D-sheet architecture, supported by broad PXRD peaks and agreement with an AA-stacked hexagonal model.
Caveat: The authors state that further crystallinity improvement is needed for detailed structural analysis.
25728 · Synthesis and characterization of Cu-TCHT · Fig. 4g,h · Linked to 4 structured results
TCHT is coordinated with copper ions in Cu-TCHT, with S-Cu XPS components, Cu2+ XPS peaks, EPR g=2.14, and Raman/IR changes supporting complex formation.
Caveat: MOF crystallographic connectivity was not solved directly.
25728 · Synthesis and characterization of Cu-TCHT · Fig. 4; Fig. S4-S5 · Linked to 6 structured results
Air exposure suppresses Cu-TCHT conductivity by about one order of magnitude relative to inert-handled samples; the paper links this to sulfur oxidation and/or oxygen-induced carrier traps.
Caveat: The underlying oxygen-induced mechanism was not clarified; conductivity for B-D is order-of-magnitude, not exact.
25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 · Linked to 5 structured results
The relatively low inert-condition conductivity of Cu-TCHT is attributed to disrupted pi-conjugation caused by sp3 carbon atoms in the triptycene unit.
Caveat: Mechanistic attribution is proposed by authors; no mobility measurement was reported.
25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu-BHTBrowse family: Cu₃(C₆S₆) / Cu–BHT | Not specifiedCu with benzenehexathiol-derived thiolate framework, from cited prior procedure · benzenehexathiol (BHT) | 2D · PristineConventional horizontal-ligand 2D conductive MOF used as comparison for CO2RR. | 25725 · Chemicals |
| Cu-TCHT | Not specifiedCu(II), square-planar Cu-S coordination inferred by XPS/EPR · 2,3,6,7,14,15-triptycenehexathiol (TCHT), thiolate coordination | 2D · PristineProposed honeycomb 2D sheet; hexagonal model with approximately 22 A periodicity and AA/eclipsed stacking simulation matching broad PXRD. | 25728 · Synthesis and characterization of Cu-TCHT · Fig. 4g,h |
| HBTC precursor | Not specified2,3,6,7,14,15-hexabromotriptycene | 0D · UnknownOrganic brominated triptycene precursor. | 25725 · Synthesis of 2,3,6,7,14,15-hexabromotriptycene (HBTC) |
| HMTTC precursor | C26H26S62,3,6,7,14,15-hexakis(methylthio)triptycene | 0D · UnknownSingle-crystal HMTTC/chloroform 1:1 solvate; triclinic P-1 in SI Table S1. | 25726 · Syntheses of HMTTC and TCHT · Scheme 2; Table S1 |
| TCHT ligand | C20H14S62,3,6,7,14,15-triptycenehexathiol | 0D · UnknownSingle-crystal TCHT/dichloromethane 1:1 solvate; triclinic P-1 in SI Table S2. | 25726 · Syntheses of HMTTC and TCHT · Scheme 2; Table S2 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu-BHT comparator frameworkresearch_0348__mat__mat_cu_bht | Powder · Pristine Control · Pristine Framework | Synthesised using previously reported procedure before loading onto Maxsorb for comparison. | 25725 · Chemicals |
| Cu-BHT@Maxsorbresearch_0348__mat__mat_cu_bht | Electrode · Composite Sample · Composite | Cu-BHT loaded on Maxsorb for comparison, dried and processed into GDE catalyst ink.Carbon electrode / gas diffusion electrode | S3-S4 · Electrocatalytic Performance Measurement for the CO2RR |
| Cu-TCHT Sample Aresearch_0348__mat__mat_cu_tcht | Pellet · Target Sample · Pristine Framework | Synthesised in glovebox but collected by filtration in air; compressed pellet measured at 20 deg C. | 25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 |
| Cu-TCHT Sample Bresearch_0348__mat__mat_cu_tcht | Pellet · Target Sample · Pristine Framework | Synthesised and measured entirely in an Ar-filled glovebox. | 25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 |
| Cu-TCHT Sample Cresearch_0348__mat__mat_cu_tcht | Pellet · Target Sample · Pristine Framework | Sample B further treated under vacuum at 120 deg C for 24 h to remove lattice solvent; measured in glovebox. | 25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 |
| Cu-TCHT Sample Dresearch_0348__mat__mat_cu_tcht | Pellet · Target Sample · Pristine Framework | Sample exposed to air for one day after synthesis. | 25728 · Synthesis and characterization of Cu-TCHT · Fig. 5 |
| Cu-TCHT@Maxsorbresearch_0348__mat__mat_cu_tcht | Electrode · Composite Sample · Composite | Cu-TCHT loaded on porous carbon Maxsorb, dried, formulated with Nafion/ethanol ink, sprayed to GDE, vacuum dried.Carbon electrode / gas diffusion electrode | S3-S4 · Electrocatalytic Performance Measurement for the CO2RR |
| Cu-TCHT black powderresearch_0348__mat__mat_cu_tcht | Powder · Target Sample · Pristine Framework | As-synthesised black powder isolated after overnight reaction and atmospheric filtration. | 25726 · Synthesis of Cu-TCHT |
| HBTC precursorresearch_0348__mat__mat_hbtc_precursor | Powder · Unknown · Unknown | White powder isolated after bromination, sodium sulfite quench, suction filtration, and methanol washing. | 25725 · Synthesis of HBTC |
| HMTTC precursorresearch_0348__mat__mat_hmttc_precursor | Powder · Unknown · Unknown | White powder isolated after microwave synthesis and automated flash chromatography. | 25726 · Synthesis of HMTTC · Fig. 2; Table S1 |
| TCHT ligand powder/single crystalresearch_0348__mat__mat_tcht_ligand | Powder · Unknown · Unknown | White powder isolated under anaerobic conditions; single crystals obtained by slow evaporation of chloroform solution under dinitrogen. | 25726 · Synthesis of TCHT / Crystal structures · Fig. 3; Table S2 |