Primary studyCore evidenceTransport Physics

Ordered layered manganese-based metal–organic frameworks induce 2D growth of discharge products via LiO2 adsorbent for high performance lithium–oxygen batteries

Yu S., Zhao H., Wang Y. et al. · Applied Organometallic Chemistry · 2024 · e7658

2materials
12samples
10synthesis routes
31measurements
57results
5claims and caveats

Evidence map

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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

Mn-MOF-140 C is presented as a high-performance air-cathode catalyst for lithium-oxygen batteries with high capacity and 140 cycles.

Caveat: The electrode is a composite containing conductive Super-P and Nafion, so application performance is not a pristine-framework electrical transport measurement.

1 · Abstract · Linked to 7 structured results

Phase AssignmentSupport assessment: High

FTIR and XPS are used to support successful coordination of Mn2+ with 2,4-PDCA in the Mn-MOF.

Caveat: No single-crystal structure or CIF is provided in the assigned documents.

5-6 · Results and discussion · Figure 2c-g · Linked to 5 structured results

Structure Property LinkSupport assessment: Medium

The 140 C Mn-MOF sample is claimed to combine ordered layered orientation, defects, lower charge-transfer resistance, and higher ion diffusion, giving the best LOB performance.

Caveat: Direct electrical conductivity is claimed qualitatively but not measured quantitatively.

8 · Conclusions · Linked to 9 structured results

Transport MechanismSupport assessment: Medium

The authors propose that Mn-MOF air cathodes adsorb LiO2 and induce a film-like discharge product, preventing further oxidation to Li2O2 and improving cycling stability.

Caveat: Mechanistic evidence is mainly Raman peak assignment and schematic interpretation; no direct in situ structural measurement is reported.

8 · Results and discussion · Figure 4g,h · Linked to 3 structured results

Transport MechanismSupport assessment: Medium

N-element and metal-ion coordination in Mn-MOFs are claimed to improve material conductivity and ORR/OER reaction kinetics.

Caveat: No standalone electrical conductivity measurement is reported; conductivity improvement is inferred from coordination and electrochemical performance.

8 · Conclusions · Linked to 4 structured results

Material identities

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

MaterialCompositionStructure contextSource
manganese-based metal-organic framework (Mn-MOF)not reportedMn2+ from manganese(II) acetate tetrahydrate · 2,4-pyridinedicarboxylic acid (2,4-PDCA)2D · Pristineordered layered/high-orientation Mn-MOF nanosheet material; 140 C sample described as uniformly oriented and defect-containing1 · Abstract
commercial MnO2 cathode controlMnO2Mn oxide · not applicableunknown · Unknowncommercial non-MOF control used for LOB cycling comparison8 · Results and discussion · Figure S2

Sample register

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

Show 12 sample records
SampleForm and roleProcessing and geometrySource
Mn-MOF-120 C air cathoderesearch_0566__mat__mat_mn_mofElectrode · Composite Sample · Compositesprayed catalyst layer on PTFE-treated carbon paperhydrophobic carbon paper support/levelling layer3 · Electrode preparation
Mn-MOF-120 Cresearch_0566__mat__mat_mn_mofPowder · Target Sample · Pristine Frameworksolvothermal powder heated at 120 C for 24 h3 · Synthesis of Mn-MOF cathode catalytic materials
Mn-MOF-140 C air cathoderesearch_0566__mat__mat_mn_mofElectrode · Composite Sample · Compositesprayed catalyst layer on PTFE-treated carbon paperhydrophobic carbon paper support/levelling layer7 · Results and discussion · Figure 4
Mn-MOF-140 Cresearch_0566__mat__mat_mn_mofNanosheet · Target Sample · Pristine Frameworksolvothermal powder heated at 140 C for 24 h4 · Results and discussion · Figure 1c,g-i
Mn-MOF-160 C air cathoderesearch_0566__mat__mat_mn_mofElectrode · Composite Sample · Compositesprayed catalyst layer on PTFE-treated carbon paperhydrophobic carbon paper support/levelling layer7 · Results and discussion · Figure 4
Mn-MOF-160 Cresearch_0566__mat__mat_mn_mofPowder · Target Sample · Pristine Frameworksolvothermal powder heated at 160 C for 24 h3 · Synthesis of Mn-MOF cathode catalytic materials
Mn-MOF-180 C air cathoderesearch_0566__mat__mat_mn_mofElectrode · Composite Sample · Compositesprayed catalyst layer on PTFE-treated carbon paperhydrophobic carbon paper support/levelling layer7 · Results and discussion · Figure 4
Mn-MOF-180 Cresearch_0566__mat__mat_mn_mofPowder · Target Sample · Pristine Frameworksolvothermal powder heated at 180 C for 24 h5 · Results and discussion · Figure 2c
Mn-MOF-200 C air cathoderesearch_0566__mat__mat_mn_mofElectrode · Composite Sample · Compositesprayed catalyst layer on PTFE-treated carbon paperhydrophobic carbon paper support/levelling layer7 · Results and discussion · Figure 4
Mn-MOF-200 Cresearch_0566__mat__mat_mn_mofPowder · Target Sample · Pristine Frameworksolvothermal powder heated at 200 C for 24 h5 · Results and discussion · Figure 2c
Mn-MOF temperature-series powdersresearch_0566__mat__mat_mn_mofPowder · Target Sample · Pristine Frameworksolvothermal powders prepared at 120, 140, 160, 180, and 200 C4 · Results and discussion · Figure 1
commercial MnO2 air cathoderesearch_0566__mat__mat_mno2_controlElectrode · Pristine Control · Compositecommercial MnO2 cathode control; preparation not described in available textnot reported8 · Results and discussion · Figure S2