Choi J.Y., Stodolka M., Kim N. et al. · Chem · 2023 · 143-153
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.
Zn-HHTP-H2O shows solvent dispersibility and chemical stability that could support device processing.
Caveat: No fabricated thin-film or membrane device is demonstrated in this paper.
main p.5 / article p.146 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figures S9-S10 · Linked to 2 structured results
Zn-HHTP-H2O is a well-defined single-phase MOF that conducts both electrons and protons.
Caveat: Transport was measured on pressed pellets rather than oriented single crystals or thin films.
main p.2 / article p.143 · Summary · Linked to 3 structured results
The urea-treated product is assigned as Zn-HHTP-urea with urea coordinated to Zn rather than simply aggregated in the sample.
Caveat: The exact stoichiometry of urea coordination is not reported.
main p.7-p.8 / article p.148-p.149 · Results and discussion - Urea functionalization of Zn-HHTP-H2O · Figures 4C-D; S18-S20 · Linked to 4 structured results
Axial H2O ligands on octahedral Zn nodes create hydrophilic/proton-donor sites that enable proton transport while HHTP coordination provides electronic conjugation.
Caveat: The Cu-HHTP control supports the role of axial ligands, but its synthesis details are not included in the assigned documents.
main p.3 / article p.144 · Introduction/Results · Figure 1A; Figure S14 · Linked to 3 structured results
Post-synthetic substitution of axial H2O by urea increases proton conductivity by about one order of magnitude while retaining same-order electrical conductivity.
Caveat: At ambient 293 K and 30% RH, urea treatment lowers electrical conductivity relative to pristine Zn-HHTP-H2O.
main p.9 / article p.150 · Results and discussion - Proton-electron dual conductivity of Zn-HHTP-urea · Table 1 · Linked to 4 structured results
Urea functionalisation changes the inferred proton transport mechanism from vehicle-type transport in Zn-HHTP-H2O to Grotthuss-type hopping in Zn-HHTP-urea.
Caveat: Mechanism is inferred from activation-energy thresholds rather than direct observation of proton hopping.
main p.9 / article p.150 · Results and discussion - Proton-electron dual conductivity of Zn-HHTP-urea · Figure 4G · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu-HHTP control MOFBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu-HHTP; exact empirical formula not reported in this paperCu nodes in an HHTP-based 2D MOF without axial ligands. · HHTP. | 2D · PristineIsostructural control to Zn-HHTP-H2O but without axial ligands. | main p.6 / article p.148 · Results and discussion - Proton-electron dual conductivity of Zn-HHTP-H2O · Figure S14 |
| EG-treated Zn-HHTP-H2O controlBrowse family: Zn–HHTP family | Zn-HHTP-H2O after ethylene glycol control treatmentZn(II) nodes retained from Zn-HHTP-H2O. · HHTP framework linker. | 2D · PristineEthylene-glycol-treated control with PXRD pattern, BET surface area and pore-size distribution unchanged from pristine Zn-HHTP-H2O. | main p.7 / article p.148 · Results and discussion - Urea functionalization of Zn-HHTP-H2O · Figure S15; Figure S23 |
| Zn-HHTP-H2OBrowse family: Zn–HHTP family | Zn-HHTP-H2O; exact empirical formula not explicitly reportedOctahedral Zn(II) nodes with in-plane HHTP coordination and axial H2O ligands. · HHTP, hexahydroxytriphenylene. | 2D · Pristine2D honeycomb MOF with AB staggered packing; axial water molecules coordinated to Zn nodes. | main p.3 / article p.144 · Results and discussion - Synthesis and characterizations of Zn-HHTP-H2O · Figure 1A; Table S1; Figure S5 |
| Zn-HHTP-ureaBrowse family: Zn–HHTP family | Urea-coordinated Zn-HHTP; exact empirical formula not explicitly reportedZn nodes in Zn-HHTP with axial urea coordination after ligand substitution. · HHTP framework linker; urea coordinated as axial functional molecule. | 2D · PristineUrea-treated Zn-HHTP retaining hexagonal pores and AB staggered packing with increased interlayer stacking distance. | main p.7 / article p.148 · Results and discussion - Urea functionalization of Zn-HHTP-H2O · Figure 4; Table S4 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu-HHTP control pelletresearch_0039__mat__cu_hhtp_control | Pellet · Pristine Control · Pristine Framework | Cu-HHTP control sample pelletised for conductivity testing; preparation details not reported in assigned documents. | main p.6 / article p.148 · Results and discussion - Proton-electron dual conductivity of Zn-HHTP-H2O · Figure S14 |
| EG-treated Zn-HHTP-H2O control pelletresearch_0039__mat__zn_hhtp_eg_control | Pellet · Pristine Control · Pristine Framework | Zn-HHTP-H2O subjected to ethylene glycol treatment without urea, then measured as a conductivity control. | main p.9 / article p.150 · Results and discussion - Proton-electron dual conductivity of Zn-HHTP-urea · Figure S23 |
| Pressed Zn-HHTP-H2O pelletresearch_0039__mat__zn_hhtp_h2o | Pellet · Target Sample · Pristine Framework | Approximately 5 mg powder pressed into a 5 mm diameter pellet under 1.5 tons for conductivity measurements.Pellet thickness measured by caliper; exact thickness not reported. | main p.11 / article p.152 · Experimental procedures - Electrical conductivity measurement · Figure 3; Table 1 |
| As-synthesised Zn-HHTP-H2O powderresearch_0039__mat__zn_hhtp_h2o | Powder · Target Sample · Pristine Framework | Hydrothermally synthesised navy-blue powder; washed with H2O, methanol and acetone, then dried under vacuum at 60 deg C for 1 h. | main p.10 / article p.151 · Experimental procedures - Synthesis of Zn-HHTP-H2O |
| Pressed Zn-HHTP-urea pelletresearch_0039__mat__zn_hhtp_urea | Pellet · Target Sample · Guest Loaded | Urea-functionalised powder pressed into a pellet for four-point electrical and EIS proton conductivity measurements.Pellet thickness measured by caliper; exact thickness not reported. | main p.11 / article p.152 · Experimental procedures - Proton conductivity measurement · Figure 4F-G; Table 1 |
| Zn-HHTP-urea powderresearch_0039__mat__zn_hhtp_urea | Powder · Target Sample · Guest Loaded | Zn-HHTP-H2O activated under vacuum at 100 deg C and treated with urea in ethylene glycol at 85 deg C for 2 h; washed and vacuum dried. | main p.10-p.11 / article p.151-p.152 · Experimental procedures - Synthesis of Zn-HHTP-urea · Figure 4 |