Chen X., Peng C., Dan W. et al. · Nature Communications · 2022 · 4592
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.
The TMOF frameworks combine accessible porosity for CO2/H2O vapour with moisture/thermal/photostability, enabling gas-phase CO2 photoreduction with water vapour.
Caveat: Surface areas are low and CO2-BET values have the precision caveat noted by a reviewer.
3 · Stability and CO2 Sorption of TMOF-10-NH2 · Fig. 2b; Supplementary Figs. 5-16 · Linked to 5 structured results
Deposited ultrasmall Ru nanoparticles act as cocatalysts that suppress recombination and improve charge separation/transport, increasing the CO evolution rate and photocurrent response.
Caveat: Ru@TMOF-10-NH2(I) is a composite/application sample; pristine TMOF-10-NH2(I) is the cleaner conductive-MOF evidence point.
9 · Deposition of Ru cocatalysts onto TMOF-10-NH2(I) · Fig. 7; Supplementary Figs. 57-60 · Linked to 4 structured results
The iodide-bridged TMOF-10-NH2(I) has more favourable carrier transport and higher photocatalytic CO evolution than the bromide analogue.
Caveat: The paper attributes the difference to the intrinsic soft nature of bridging iodide; direct atomistic causality remains supported by comparative measurements rather than isolated single-parameter control.
6 · Overall photocatalytic CO2 reduction and H2O oxidation · Fig. 5a; Table 1 · Linked to 6 structured results
DFT and in situ DRIFTS support CO2 activation at exposed Pb2+ sites of the iodide framework, with charge transfer into bent adsorbed CO2 and a relatively low *CO2-to-*COOH barrier.
Caveat: Mechanistic pathway is model-supported and spectroscopically inferred; it is not a direct operando structural determination of every intermediate.
8 · Photocatalytic mechanism · Fig. 6 · Linked to 4 structured results
Bromo/iodo-bridged Pb-halide SBUs enhance intrinsic photocarrier transport relative to conventional metal-oxo MOFs and the halide-free Pb(NH2-bdc)n control.
Caveat: No dark electrical conductivity value is reported; the transport evidence is Hall mobility/carrier concentration and photoexcited lifetime/photovoltage spectroscopy.
6 · Carrier transport properties of TMOF-10-NH2 · Table 1 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| [Pb(NH2-bdc)]n | C8H5NO4Pb1D Pb2+-carboxylate chains without halide species · 2-aminoterephthalate (NH2-bdc) | 3D · PristineMonoclinic P21/c Pb-based MOF control with 1D pore channels analogous to TMOF-10-NH2 but lacking bridging halide. | 6 · Carrier transport properties of TMOF-10-NH2 · Supplementary Figs. 30-31 |
| Ultrasmall Ru nanoparticles | RuRu nanoparticles | 0D · DerivedApproximately 1.5 nm Ru nanoparticles with hexagonal Ru (002) lattice spacing of 0.214 nm. | 8 · Deposition of Ru cocatalysts onto TMOF-10-NH2(I) · Fig. 7b |
| Ru@TMOF-10-NH2(I) | Ru nanoparticle-loaded TMOF-10-NH2(I)TMOF-10-NH2(I) [Pb2I]3+ framework with surface-loaded Ru nanoparticles · 2-aminoterephthalate (NH2-bdc) | 3D · CompositeComposite retaining the parent TMOF-10-NH2(I) crystallinity after Ru nanoparticle loading. | 9 · Deposition of Ru cocatalysts onto TMOF-10-NH2(I) · Fig. 7 |
| TMOF-10-NH2(Br) | C18H18BrN3O8Pb2; described as [Pb2Br]3+(NH2-bdc)2.G with G = (CH3)2NH2+1D bromo-bridged rod-shaped [Pb2Br]3+ secondary building units with Pb2+ centres · 2-aminoterephthalate (NH2-bdc) | 3D · PristineMonoclinic P21/c 3D coordination network isoreticular with TMOF-10-NH2(I), using bromo-bridged Pb chains and 1D pore channels. | 2 · Synthesis and structural determination of TMOF-10-NH2 · Fig. 1 |
| TMOF-10-NH2(I) | C18H18IN3O8Pb2; described as [Pb2I]3+(NH2-bdc)2.G with G = (CH3)2NH2+1D iodo-bridged rod-shaped [Pb2I]3+ / lead oxyiodide secondary building units with Pb2+ centres · 2-aminoterephthalate (NH2-bdc) | 3D · PristineMonoclinic P21/c 3D coordination network with parallel infinite rod-shaped [Pb2I]3+ SBUs and 1D pore channels along the a-axis. | 2 · Synthesis and structural determination of TMOF-10-NH2 · Fig. 1 |
| UiO-66(Zr)-NH2 | Zr6O4(OH)4 aminoterephthalate MOFZr6O4(OH)4 metal-oxo clusters · 2-aminoterephthalate (NH2-bdc) | 3D · PristineBenchmark metal-oxo MOF control with identical organic linker. | 5 · Carrier transport properties of TMOF-10-NH2 · Fig. 4e and Table 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| [Pb(NH2-bdc)]n controlresearch_0146__mat__mat_pb_bdc_control | Single Crystal · Pristine Control · Pristine Framework | Yellow crystals isolated by vacuum filtration and rinsed with EtOH. | 10 · Synthesis of [Pb(NH2-bdc)]n |
| As-synthesised ultrasmall Ru NPsresearch_0146__mat__mat_ru_np | Unknown · Composite Component · Unknown | Black colloidal solution in toluene at approximately 1 mg/mL.approximately 1.5 nm particle size | 10 · Synthesis of ultrasmall Ru NPs · Supplementary Fig. 53 |
| Ru1.58@TMOF-10-NH2(I)research_0146__mat__mat_ru_tmof_i | Powder · Composite Sample · Composite | Optimised Ru nanoparticle loading of 1.58 wt.% by ICP-OES; grey precipitate after loading, EtOH washing and vacuum drying. | 9 · Deposition of Ru cocatalysts onto TMOF-10-NH2(I) · Fig. 7d |
| Activated TMOF-10-NH2(Br)research_0146__mat__mat_tmof_br | Powder · Target Sample · Pristine Framework | Activated by EtOH incubation and vacuum drying at 80 °C overnight before gas sorption. | 11 · Gas sorption |
| As-synthesised TMOF-10-NH2(Br)research_0146__mat__mat_tmof_br | Single Crystal · Target Sample · Guest Loaded | Brown plate-like bromide analogue crystals prepared by the iodide recipe with PbBr2 replacing PbI2. | 10 · Synthesis of TMOF-10-NH2(Br) |
| Activated TMOF-10-NH2(I)research_0146__mat__mat_tmof_i | Powder · Target Sample · Pristine Framework | Activated by EtOH incubation at elevated temperature, followed by vacuum drying at 80 °C overnight. | 3 · Stability and CO2 Sorption of TMOF-10-NH2 · Supplementary Figs. 13-14 |
| As-synthesised TMOF-10-NH2(I)research_0146__mat__mat_tmof_i | Single Crystal · Target Sample · Guest Loaded | Brownish plate-like crystals; micrometre-sized powders prepared by manual grinding for some measurements. | 10 · Synthesis of TMOF-10-NH2(I) |
| UiO-66(Zr)-NH2 benchmarkresearch_0146__mat__mat_uio66_nh2 | Powder · Pristine Control · Pristine Framework | Benchmark metal-oxo MOF studied under the same TA/photocatalysis conditions. | 6 · Overall photocatalytic CO2 reduction and H2O oxidation · Supplementary Fig. 46 |