Dong S., Wu L., Xue M. et al. · ACS Applied Energy Materials · 2021 · 1568-1574
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.
A sodium-ion hybrid capacitor using Ni-MOF as negative electrode and NVOPF/AC as positive electrode delivers high energy density, high power density, and 5000-cycle stability.
Caveat: Device data are application context; energy and power are based on total active mass of Ni-MOF and NVOPF/AC, not full packaged cell mass.
5 · 3.4 · Figure 5 · Linked to 4 structured results
Extending the discharge below 0.5 V increases apparent capacity but causes Ni reduction, slower Na+ diffusion, larger resistance, and poor rate/cycle stability.
Caveat: Some impedance and diffusion comparisons are qualitative in the text.
4 · 3.3 · Figure S6-S8 · Linked to 5 structured results
The target conductive MOF is a 2D crystalline Ni3(hexaaminobenzene)2 framework with AA-eclipsed stacking and large channels.
Caveat: No CIF was assigned in this extraction packet; structure assignment is based on the paper's XRD comparison to a simulated model.
2 · 3.1 · Figure 1 · Linked to 3 structured results
The porous conductive Ni-MOF framework is claimed to accelerate sodium-ion diffusion and electron transfer simultaneously, giving good rate capability in the 0.5-3.0 V window.
Caveat: Structure-property claim is plausible and experimentally supported, but direct separate ion/electron transport measurements are limited.
5 · 3.4 · Linked to 4 structured results
Between 0.5 and 3.0 V versus Na+/Na, sodium-storage redox activity is centred on hexaaminobenzene linker amine/quinoid species rather than Ni; Ni remains divalent and stabilises the conductive framework.
Caveat: Mechanistic inference is from ex situ XPS at selected states of charge rather than operando spectroscopy.
4 · 3.3 · Figure 3 · Linked to 3 structured results
Despite the large pore structure, Na+ enters Ni-MOF after desolvation rather than with co-inserted solvent molecules.
Caveat: The authors state that the underlying reason for desolvation requires further investigation.
4 · 3.3 · Figure S5 · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Ni-MOF | Ni3(hexaaminobenzene)2Ni(II) ion nodes · hexaaminobenzene (HAB; from hexaaminobenzene trihydrochloride) | 2D · PristineConductive Ni-based MOF with simulated AA-eclipsed stacking, large channels, and a stacking layer distance of about 3.1 Angstrom. | 1 · Abstract |
| NVOPF/AC positive electrode composite | Na3V2O2(PO4)2F/active carbon with PEDOT-coated NVOPF componentV in Na3V2O2(PO4)2F | unknown · CompositeNon-MOF positive-electrode composite integrating NVOPF capacity and active-carbon rate capability. | 5 · 3.4 · Figure 5a |
| NVOPF/AC//Ni-MOF sodium-ion hybrid capacitor | (+)NVOPF/AC//Ni-MOF(-)Ni in Ni-MOF negative electrode; V in NVOPF positive electrode · hexaaminobenzene in Ni-MOF | unknown · CompositeFull sodium-ion hybrid capacitor combining battery-type Ni-MOF negative electrode and NVOPF/AC positive electrode. | 5 · 3.4 · Figure 5 caption |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| as-prepared Ni-MOF powderresearch_0789__mat__mat_ni_mof | Powder · Target Sample · Pristine Framework | Filtered, washed and vacuum-dried Ni-MOF solid. | 2 · 2.1.1 |
| Ni-MOF quartz sensor electrode filmresearch_0789__mat__mat_ni_mof | Thin Film · Target Sample · Pristine Framework | Ni-MOF film prepared by vacuum filtration-and-transfer onto a quartz sensor.4.95 MHz AT-cut gold quartz sensor electrode | S5 · 1.3 Electrochemical quartz crystal microbalance |
| Ni-MOF working electroderesearch_0789__mat__mat_ni_mof | Electrode · Target Sample · Composite | Ni-MOF active material, Ketjen Black and CMC binder slurry cast on aluminium foil; active mass loading about 1.5 mg cm-2.aluminium foil | S2 · 1.2 Electrochemical measurements |
| NVOPF/AC positive electroderesearch_0789__mat__mat_nvopf_ac | Electrode · Composite Component · Composite | NVOPF/AC/KB/CMC composite electrode with active mass loading about 4.5 mg cm-2.aluminium foil | S3 · 1.2 Electrochemical measurements |
| NVOPF/AC//Ni-MOF SIC full cellresearch_0789__mat__mat_sic_device | Unknown · Composite Sample · Composite | Ni-MOF negative electrode, NVOPF/AC positive electrode and sodium metal reference; Ni-MOF pre-activated before full-cell testing.three-electrode Swagelok cell setup | S3 · 1.2 Electrochemical measurements · Figure S1 |