Primary studyCore evidenceTransport Physics

Conductive metal-organic frameworks promoting polysulfides transformation in lithium-sulfur batteries

Wang S., Huang F., Zhang Z. et al. · Journal of Energy Chemistry · 2021 · 336-343

5materials
9samples
4synthesis routes
24measurements
67results
4claims 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

Ni-HHTP@CP improves Li-S cell rate capability, cycling stability, and lean-electrolyte/high-loading performance compared with Ni-BTC@CP.

Caveat: Several high-loading outcomes are reported in main text and supported by rendered SI figures; raw cycling tables are not supplied.

p006 / article p341 · 4. Conclusions · Fig. 5; Figs. S23-S25 referenced · Linked to 8 structured results

Phase AssignmentSupport assessment: High

XRD peaks of Ni-HHTP on carbon paper match solution-synthesised and previously reported Ni-HHTP, indicating the framework is maintained after growth on CP.

Caveat: No raw XRD data supplied; assignment is based on main-text peak positions and Fig. 3a.

p003 / article p338 · Results and discussion · Fig. 3a · Linked to 3 structured results

Structure Property LinkSupport assessment: Medium

Ni-HHTP combines strong polysulfide chemisorption with electronic conductivity, enabling suppression of shuttle effect and faster polysulfide conversion.

Caveat: Conductivity value is cited from prior literature rather than measured in this paper; adsorption and electrochemistry are first-hand.

p006 / article p341 · 4. Conclusions · Linked to 4 structured results

Transport MechanismSupport assessment: High

The Ni-HHTP@CP cathode reduces Li2S deposition/dissolution energy barriers relative to Ni-BTC@CP, as shown by lower Tafel slopes and higher Li2S deposition current.

Caveat: EIS fitted values are available from rendered SI Table S1, but raw impedance data are not supplied.

p004 / article p339 · Results and discussion · Fig. 4b-f · Linked to 8 structured results

Material identities

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

MaterialCompositionStructure contextSource
carbon papercarbon fibre paperunknown · PristineSelf-supported conductive carbon fibre substrate with interconnected fibres and voids.p003 / article p338 · Results and discussion · Fig. 2c
Ni-BTCnickel 1,3,5-benzenetricarboxylate frameworkNi(II) nodes · 1,3,5-benzenetricarboxylic acid / BTCunknown · PristineInsulating nickel-BTC MOF control; rendered SI provides optical, microscopy, elemental mapping, XRD and porosity evidence.p002 / article p337 · Introduction · Fig. S1 referenced
Ni-BTC@CPNi-BTC coated on carbon paperNi(II) nodes in Ni-BTC · BTC linker in Ni-BTCunknown · CompositeComposite control electrode with insulating Ni-BTC grown on carbon fibres.p003 / article p338 · Results and discussion · Figs. S5-S11 referenced
Ni-HHTPBrowse family: Ni₃(HHTP)₂ / Ni–HHTPNi-catecholate framework based on HHTP; commonly Ni3(HHTP)2 familyNi(II) nodes · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP)2D · PristineConductive nickel-catecholate MOF with two distinct types of 2D layers stacked by pi-pi interactions and hydrogen bonding to form parallel 1D open channels.p003 / article p338 · Results and discussion · Fig. 2a; Fig. S2 referenced
Ni-HHTP@CPBrowse family: Ni₃(HHTP)₂ / Ni–HHTPNi-HHTP grown on carbon paperNi(II) nodes in Ni-HHTP · HHTP linker in Ni-HHTP2D · CompositeComposite electrode in which bush-like Ni-HHTP coats interconnected carbon fibres; XRD peaks of Ni-HHTP are retained on CP.p003 / article p338 · Results and discussion · Figs. 2b-d and 3a

Sample register

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

Show 9 sample records
SampleForm and roleProcessing and geometrySource
Li-S coin cell with received carbon paper cathoderesearch_0021__mat__mat_carbon_paperElectrode · Pristine Control · Composite2032 Li-S coin cell assembled analogously with received carbon paper cathode control; supporting CV/cycling figures are in SI captions.carbon paper current collector/cathode hostp005 / article p340 · Results and discussion · Figs. S21 and S22 referenced
Li-S coin cell with Ni-BTC@CP cathoderesearch_0021__mat__mat_ni_btc_cpElectrode · Pristine Control · Composite2032 coin cell assembled in Ar glove box using Ni-BTC@CP control cathode under analogous conditions to Ni-HHTP@CP.carbon paper current collector/cathode hostp004 / article p339 · Results and discussion · Figs. 4 and 5
Li-S coin cell with Ni-HHTP@CP cathoderesearch_0021__mat__mat_ni_hhtp_cpElectrode · Target Sample · Composite2032 coin cell assembled in Ar glove box with Li foil counter electrode, PE separator, Li2S6 catholyte, and Ni-HHTP@CP cathode.carbon paper current collector/cathode hostp003 / article p338 · 2.7 Electrochemical cell assembly and measurement · Figs. 4 and 5
Ni-BTC@CP electroderesearch_0021__mat__mat_ni_btc_cpElectrode · Pristine Control · CompositeSolvothermal growth on oxidized CP followed by DMF/ethanol rinsing, ethanol activation at 70 degC, and vacuum drying at 85 degC for 12 h.oxidized carbon paperp003 / article p338 · 2.4 Preparation of Ni-BTC@CP · Figs. S5-S11 referenced
Ni-BTC particlesresearch_0021__mat__mat_ni_btcPowder · Pristine Control · Pristine FrameworkHeated at 80 degC under vacuum overnight before polysulfide adsorption tests.p003 / article p338 · 2.6 Polysulfides adsorption test · Fig. 3c-d
Ni-HHTP@CP electroderesearch_0021__mat__mat_ni_hhtp_cpElectrode · Target Sample · CompositeSolvothermal growth on oxidized CP, washed with deionized water and acetone, vacuum dried at 85 degC for 12 h.oxidized carbon paper · bush-like Ni-HHTP thickness approximately 2.5 um on carbon fibresp003 / article p338 · 2.3 Preparation of Ni-HHTP@CP; Results and discussion · Fig. 2d
Ni-HHTP particlesresearch_0021__mat__mat_ni_hhtpPowder · Pristine Control · Pristine FrameworkHeated at 80 degC under vacuum overnight before polysulfide adsorption tests.p003 / article p338 · 2.6 Polysulfides adsorption test · Fig. 3b-d
oxidized carbon paperresearch_0021__mat__mat_carbon_paperElectrode · Composite Component · CompositeCarbon paper disks oxidized in mixed concentrated nitric/sulfuric acid, rinsed, and vacuum dried.p002 / article p337 · 2.2 Oxidation of carbon paper
received carbon paperresearch_0021__mat__mat_carbon_paperElectrode · Pristine Control · UnknownCommercial carbon paper used as substrate/control; SI captions report optical image, SEM, Raman, N2 sorption and CV controls.p013-p016 · SI Figs. S12-S15 · Figs. S12-S15