Primary studyCore evidenceTransport Physics

Conductive Metal–Organic Frameworks Anchoring on V3O7·H2O Nanobelts Toward High-Capacity and Long-Life Zinc-Ion Batteries

Liu Y., Wang X., Wu Z.-S. et al. · Advanced Functional Materials · 2025 · 2505535

4materials
12samples
7synthesis routes
23measurements
104results
6claims 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

VO@Cu-HHTP-2 flexible pouch batteries retain high rate capability, low folded-state impedance, and near-quantitative cycling retention.

Caveat: Pouch-cell construction details are limited to component schematic and gel-electrolyte recipe; device dimensions and active mass are not reported.

p008 · 2.4. Soft-Pack Battery · Figure 6 · Linked to 5 structured results

Composite RoleSupport assessment: High

An optimal amount of Cu-HHTP in VO@Cu-HHTP-2 gives higher capacity and rate capability than pristine VO and other Cu-HHTP loadings.

Caveat: Electrode data include Super-P and PVDF in all samples; capacity is normalised as reported by the authors.

p005 · 2.2. Electrochemical Performance Evaluation · Figure 3d-e · Linked to 4 structured results

Composite RoleSupport assessment: High

Anchored Cu-HHTP suppresses vanadium dissolution from V3O7.H2O in Zn(CF3SO3)2 electrolyte.

Caveat: ICP values are after a stated soaking comparison; exact immersion duration is inferred from Figure S4 as 10 days in the text.

p004 · 2.2. Electrochemical Performance Evaluation · Figure S4 · Linked to 2 structured results

Structure Property LinkSupport assessment: Medium

Anchored Cu-HHTP enhances electrical conductivity and charge-transfer kinetics of V3O7.H2O nanobelts through pi-d conjugation.

Caveat: No direct first-hand bulk electrical conductivity value for VO@Cu-HHTP is reported; support is indirect through EIS/GITT and performance.

p002 · Introduction · Linked to 3 structured results

Transport MechanismSupport assessment: High

VO@Cu-HHTP-2 stores charge through a dual H+ and Zn2+ co-insertion mechanism with reversible V3O7.H2O peak shifts and ZVO phase formation.

Caveat: Mechanism inferred from ex situ diffraction, XPS, and TEM rather than in situ chemical quantification.

p007 · 2.3. Mechanism Discussion · Figure 5 · Linked to 3 structured results

Transport MechanismSupport assessment: High

The VO@Cu-HHTP-2 redox reaction is mainly controlled by surface capacitance, supporting high-rate zinc storage.

Caveat: Only b2, b3, b5, and b6 are reported; no b1/b4 values are provided.

p005 · 2.2. Electrochemical Performance Evaluation · Figure 4b-c · Linked to 5 structured results

Material identities

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

MaterialCompositionStructure contextSource
Cu-HHTP conductive metal-organic frameworkBrowse family: Cu₃(HHTP)₂ / Cu–HHTPCu-HHTP; commonly Cu3(HHTP)2 but exact stoichiometry not specified in this paperCu ions from anhydrous copper acetate · HHTP = hexahydroxytriphenylene2D · Pristine2D conductive MOF with prominent diffraction peaks at 5.0, 9.6, and 12.6 degrees assigned to the (100), (200), and (210) planes.p002 · 2.1. Structural and Morphological Characterization · Figure 1a; Figure S1
Polyacrylamide gel electrolytePAM gel containing 3 M Zn(CF3SO3)2unknown · UnknownPolymer gel electrolyte separator for flexible pouch batteries.SI text · S1.1.3. Synthesis of polyacrylamide (PAM) gel electrolyte
V3O7.H2O vanadium oxide nanobeltsV3O7.H2OV-O polyhedral framework containing V5+/V4+ redox centresunknown · PristineOrthorhombic V3O7.H2O phase, space group Pnam, with unit cell a = 16.8714 A, b = 9.3325 A, c = 3.6348 A.p002 · 2.1. Structural and Morphological Characterization · Figure 1a
VO@Cu-HHTP compositeBrowse family: Cu₃(HHTP)₂ / Cu–HHTPV3O7.H2O@Cu-HHTPV-O nanobelt host plus Cu nodes in anchored Cu-HHTP · HHTP in anchored Cu-HHTPunknown · CompositeCu-HHTP anchored on V3O7.H2O nanobelts by pi-d conjugation; composite retains V3O7.H2O reflections with a Cu-HHTP peak near 8.4 degrees.p002 · 2.1. Structural and Morphological Characterization · Figure 1a

Sample register

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

Show 12 sample records
SampleForm and roleProcessing and geometrySource
Cu-HHTP composite cathode electroderesearch_0226__mat__m_cu_hhtpElectrode · Pristine Control · CompositeActive material/Super-P/PVDF = 7:2:1 in NMP, scraped onto carbon paper and vacuum dried at 60 C.carbon paper · active material loading 2-3 mg cm-2SI text · S1.3 Electrochemical characterization
Cu-HHTPresearch_0226__mat__m_cu_hhtpPowder · Pristine Control · Pristine FrameworkBlack powder obtained by hydrothermal reaction and washing.SI text · S1.1.1. Synthesis of Cu-HHTP conductive MOFs
PAM gel electrolyte separatorresearch_0226__mat__m_pam_gelUnknown · Composite Component · Guest LoadedAcrylamide polymerised in 3 M Zn(CF3SO3)2 with persulfate initiator and bis(acrylamide) crosslinker.mould 100 mm x 70 mm x 2 mmSI text · S1.1.3. Synthesis of polyacrylamide (PAM) gel electrolyte
VO@Cu-HHTP-1 composite cathode electroderesearch_0226__mat__m_vo_cu_hhtpElectrode · Composite Sample · CompositeVO@Cu-HHTP-1 active material/Super-P/PVDF = 7:2:1 in NMP, scraped onto carbon paper and vacuum dried at 60 C.carbon paper · active material loading 2-3 mg cm-2SI text · S1.3 Electrochemical characterization
VO@Cu-HHTP-1research_0226__mat__m_vo_cu_hhtpNanosheet · Composite Sample · CompositeVO@Cu-HHTP composite prepared with 0.025 g Cu-HHTP added to V2O5/H2O2 precursor solution before hydrothermal treatment.SI text · S1.1.2. Synthesis of V3O7.H2O and VO@Cu-HHTP
VO@Cu-HHTP-2 composite cathode electroderesearch_0226__mat__m_vo_cu_hhtpElectrode · Target Sample · CompositeVO@Cu-HHTP-2 active material/Super-P/PVDF = 7:2:1 in NMP, scraped onto carbon paper and vacuum dried at 60 C.carbon paper · active material loading 2-3 mg cm-2SI text · S1.3 Electrochemical characterization
Zn||VO@Cu-HHTP-2 pouch batteryresearch_0226__mat__m_vo_cu_hhtpElectrode · Target Sample · CompositeFlexible pouch device composed of VO@Cu-HHTP-2 cathode, PAM gel electrolyte separator, Zn foil anode, and aluminum-plastic encapsulation.aluminum-plastic film pouchp008 · 2.4. Soft-Pack Battery · Figure 6a
VO@Cu-HHTP-2research_0226__mat__m_vo_cu_hhtpNanosheet · Target Sample · CompositeOptimum VO@Cu-HHTP composite prepared with 0.05 g Cu-HHTP and hydrothermal treatment at 200 C for 48 h.p003 · 2.1. Structural and Morphological Characterization · Figure 2b
VO@Cu-HHTP-3 composite cathode electroderesearch_0226__mat__m_vo_cu_hhtpElectrode · Composite Sample · CompositeVO@Cu-HHTP-3 active material/Super-P/PVDF = 7:2:1 in NMP, scraped onto carbon paper and vacuum dried at 60 C.carbon paper · active material loading 2-3 mg cm-2SI text · S1.3 Electrochemical characterization
VO@Cu-HHTP-3research_0226__mat__m_vo_cu_hhtpNanosheet · Composite Sample · CompositeVO@Cu-HHTP composite prepared with 0.075 g Cu-HHTP added to V2O5/H2O2 precursor solution before hydrothermal treatment.SI text · S1.1.2. Synthesis of V3O7.H2O and VO@Cu-HHTP
VO composite cathode electroderesearch_0226__mat__m_voElectrode · Pristine Control · CompositeVO active material/Super-P/PVDF = 7:2:1 in NMP, scraped onto carbon paper and vacuum dried at 60 C.carbon paper · active material loading 2-3 mg cm-2SI text · S1.3 Electrochemical characterization
VO; pure V3O7.H2Oresearch_0226__mat__m_voNanosheet · Pristine Control · UnknownHydrothermally prepared under identical conditions without Cu-HHTP.SI text · S1.1.2. Synthesis of V3O7.H2O and VO@Cu-HHTP