Primary studyCore evidenceTransport Physics

Generation of Environmentally Persistent Free Radicals on Metal-Organic Frameworks

Ye Y., Li Y., Wang J. et al. · Langmuir · 2022 · 3265-3275

3materials
11samples
11synthesis routes
16measurements
74results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

CT-derived radicals on MIL-100(Al) are even longer-lived than MCP-derived radicals, with a reported half-life of 187 days.

Caveat: CT ageing data are reported in main text with supporting SI figure; only SI text/caption was available for later pages beyond the image cap.

3270 · Radical Evolution in MIL-100(Al) · Figure S20 · Linked to 3 structured results

Application RelevanceSupport assessment: High

MCP-derived radicals on MIL-100(Al) are environmentally persistent, with a reported half-life of 70 days and 1/e lifetime of 101 days.

Caveat: Ageing was measured under ambient laboratory atmosphere, not necessarily all environmental conditions.

3270 · Radical Evolution in MIL-100(Al) · Figure 3f · Linked to 3 structured results

CaveatSupport assessment: High

The article uses MOFs as isostructural porous platforms for radical chemistry and does not report electrical conductivity, charge transport, thermoelectric, or electrochemical device data.

Caveat: Confirmed by text search for transport-related terms and full-text review.

3265 · Abstract

Structure Property LinkSupport assessment: High

High Lewis acidity of five-coordinated Al3+ sites is the main factor enabling phenolic precursor adsorption, O-H activation and EPFR formation on MIL-100(Al).

Caveat: Based on comparative spectroscopy and radical measurements rather than direct in situ observation of every elementary step.

3272 · Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure S31; Figure S32 · Linked to 4 structured results

Structure Property LinkSupport assessment: High

MIL-100(Fe) and MIL-100(Cr) do not generate measurable aromatic EPFRs from MCP/CT despite higher Fe3+/Cr3+ oxidation potentials, because their Lewis acidity is insufficient.

Caveat: The Cr and Fe comparison relies on EPR non-detection and Lewis-acid probe IR, not a conductivity or transport measurement.

3272 · Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure 4; Figure S31 · Linked to 4 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
MIL-100(Al)Al trimesate MIL-100; Al3O(BTC) frameworkmu3-oxo-centred trinuclear Al3O clusters with terminal H2O/OH sites · 1,3,5-benzenetricarboxylate/trimesate (BTC)3D · PristineMIL-100 framework with zeolite mtn topology, supertetrahedral motifs, and two cage types.3267 · Results and Discussion - Structural Characterization of MIL-100 · Figure 1
MIL-100(Cr)Cr trimesate MIL-100; Cr3O(BTC) frameworkmu3-oxo-centred trinuclear Cr3O clusters with terminal H2O/OH sites · 1,3,5-benzenetricarboxylate/trimesate (BTC)3D · PristineIsostructural MIL-100 framework with Cr3O secondary building units and mtn topology.3267 · Results and Discussion - Structural Characterization of MIL-100 · Figure 1
MIL-100(Fe)Fe trimesate MIL-100; Fe3O(BTC) frameworkmu3-oxo-centred trinuclear Fe3O clusters with terminal H2O/OH sites · 1,3,5-benzenetricarboxylate/trimesate (BTC)3D · PristineIsostructural MIL-100 framework with Fe3O secondary building units and mtn topology.3267 · Results and Discussion - Structural Characterization of MIL-100 · Figure 1

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 11 sample records
SampleForm and roleProcessing and geometrySource
CT-dosed MIL-100(Al)research_0745__mat__mat_mil100_alPowder · Target Sample · Guest LoadedMIL-100(Al) immersed in catechol ethanol solution, dried, then heated at 250 C under Ar.3267 · Experimental Section - EPFR Formation Experiments
Soxhlet-purified CT-dosed MIL-100(Al)research_0745__mat__mat_mil100_alPowder · Target Sample · Guest LoadedCT-dosed MIL-100(Al) after Soxhlet extraction to remove unreacted precursor.3269 · Results and Discussion - Radical Generation on MIL-100(Al) · Figure S15; Tables S1-S2
MCP-dosed MIL-100(Al)research_0745__mat__mat_mil100_alPowder · Target Sample · Guest LoadedMIL-100(Al) exposed to 2-chlorophenol vapour then thermally treated at 250 C under Ar.3267 · Experimental Section - EPFR Formation Experiments
Soxhlet-purified MCP-dosed MIL-100(Al)research_0745__mat__mat_mil100_alPowder · Target Sample · Guest LoadedMCP-dosed MIL-100(Al) after Soxhlet extraction to remove unreacted precursor.3267 · Experimental Section - EPFR Formation Experiments
MIL-100(Al) powderresearch_0745__mat__mat_mil100_alPowder · Pristine Control · Pristine FrameworkHydrothermally synthesised, cleaned with DMF/water/Soxhlet/supercritical CO2, dried under vacuum, and activated at 150 C before use.3266 · Experimental Section - Synthesis of MIL-100(Al)
CT-dosed MIL-100(Cr)research_0745__mat__mat_mil100_crPowder · Target Sample · Guest LoadedMIL-100(Cr) exposed to catechol and thermally treated at 250 C under Ar.3271 · Results and Discussion - Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure S26
MCP-dosed MIL-100(Cr)research_0745__mat__mat_mil100_crPowder · Target Sample · Guest LoadedMIL-100(Cr) exposed to MCP vapour and thermally treated at 250 C under Ar.3271 · Results and Discussion - Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure 4
MIL-100(Cr) powderresearch_0745__mat__mat_mil100_crPowder · Pristine Control · Pristine FrameworkHydrothermally synthesised from metallic chromium/H3BTC/HF/water, washed, supercritical CO2 extracted, vacuum dried, and activated at 150 C.3266 · Experimental Section - Synthesis of MIL-100(Cr)
CT-dosed MIL-100(Fe)research_0745__mat__mat_mil100_fePowder · Target Sample · Guest LoadedMIL-100(Fe) exposed to catechol and thermally treated at 250 C under Ar.3271 · Results and Discussion - Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure S25
MCP-dosed MIL-100(Fe)research_0745__mat__mat_mil100_fePowder · Target Sample · Guest LoadedMIL-100(Fe) exposed to MCP vapour and thermally treated at 250 C under Ar.3271 · Results and Discussion - Radical Generation in MIL-100(Cr) and MIL-100(Fe) · Figure 4
MIL-100(Fe) powderresearch_0745__mat__mat_mil100_fePowder · Pristine Control · Pristine FrameworkHydrothermally synthesised without HF, washed with hot ethanol and water, supercritical CO2 extracted, vacuum dried, and activated at 150 C.3266 · Experimental Section - Synthesis of MIL-100(Fe)