Jiang X., Deng S., Sun L. et al. · Journal of Electroanalytical Chemistry · 2020 · 114802
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.
The (Zn/Ni)2(bdc)2P//AC asymmetric supercapacitor provides 12.2 W h kg-1 at 371.5 W kg-1 and can power red and yellow LEDs in series-connected devices.
Caveat: LED demonstration is qualitative and shown as an inset image.
8-9 · 3.2 Electrochemical measurements; Conclusions · Fig. 7e,f · Linked to 3 structured results
Cycle stability of both Ni2(bdc)2P and (Zn/Ni)2(bdc)2P electrodes is poor because active material may detach from the current collector during cycling.
Caveat: Mechanism is proposed by authors; no post-cycling adhesion or morphology result is shown in the main text.
8 · 3.2 Electrochemical measurements · Fig. 6f · Linked to 2 structured results
Zn2(bdc)2P is unsuitable as an energy-storage electrode despite very high surface area, attributed to ultralow electrical conductivity of Zn-based MOF materials.
Caveat: No direct conductivity value is reported; the conductivity statement is an author interpretation from electrochemical behaviour.
8 · 3.2 Electrochemical measurements · Fig. 6e; Fig. S7 referenced · Linked to 2 structured results
Zn2+ partially replaces Ni2+ in the pillared Ni2(bdc)2P framework to form (Zn/Ni)2(bdc)2P.
Caveat: No CIF files were available locally; SI figures were available for supplementary XRD/XPS/EDS checks.
3-5 · 3.1 Structure characterization · Figs. 2-4 · Linked to 4 structured results
Higher electrochemical capacity of (Zn/Ni)2(bdc)2P than Ni2(bdc)2P is attributed to increased specific surface area after Zn introduction.
Caveat: The claim is correlational; no direct electronic conductivity measurement is reported.
8 · 3.2 Electrochemical measurements · Fig. 6e · Linked to 4 structured results
Ni2(bdc)2P shows hybrid charge storage with dominant battery behaviour based on b values between 0.5 and 1.0.
Caveat: The supporting fit is shown in Supplementary Fig. S6(b) and the b values are also reported in the main text.
7 · 3.2 Electrochemical measurements · Fig. S6b referenced · Linked to 2 structured results
(Zn/Ni)2(bdc)2P capacity arises from both battery and capacitive behaviours, mainly influenced by diffusion-limited battery behaviour.
7 · 3.2 Electrochemical measurements · Fig. 6c · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Activated carbon negative-electrode material | AC (activated carbon) | unknown · CompositeCommercial/unspecified activated carbon used as the negative electrode in the asymmetric supercapacitor. | 8 · 3.2 Electrochemical measurements · Fig. S9 referenced; Fig. 7a |
| Pillared Ni2(bdc)2P | Ni2(bdc)2P; bdc = 1,4-benzenedicarboxylate; P = dabcoNi · 1,4-benzenedicarboxylic acid (bdc); dabco (1,4-diazabicyclo[2.2.2]octane) | 3D · PristinePillared paddle-wheel MOF matching simulated [Ni2(BDC)2(DABCO)] framework; open channel diameter about 0.7 nm. | 2-3 · Introduction; 3.1 Structure characterization · Fig. 2 |
| Pillared Zn2(bdc)2P | Zn2(bdc)2P; bdc = 1,4-benzenedicarboxylate; P = dabcoZn · 1,4-benzenedicarboxylic acid (bdc); dabco (1,4-diazabicyclo[2.2.2]octane) | 3D · PristinePillared Zn analogue of M2(bdc)2P; simulated pattern referenced from [Zn2(C8H4O4)2(C6H12N2)] framework in SI. | 3 · 3.1 Structure characterization · Fig. S1 referenced |
| Zn-doped pillared (Zn/Ni)2(bdc)2P | (Zn/Ni)2(bdc)2P; bdc = 1,4-benzenedicarboxylate; P = dabcoNi/Zn mixed metal nodes · 1,4-benzenedicarboxylic acid (bdc); dabco (1,4-diazabicyclo[2.2.2]octane) | 3D · PristineZn-doped pillared Ni MOF; XRD peak shift to larger angle indicates partial replacement of Ni2+ by Zn2+. | 3 · 3.1 Structure characterization · Fig. 2 |
| (Zn/Ni)2(bdc)2P//AC asymmetric supercapacitor | (Zn/Ni)2(bdc)2P positive electrode // activated carbon negative electrodeNi/Zn in positive-electrode MOF · bdc and dabco in positive-electrode MOF | unknown · CompositeDevice-level composite/application material assembled from (Zn/Ni)2(bdc)2P electrode and activated carbon electrode. | 8 · 3.2 Electrochemical measurements · Fig. 7 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated carbon composite negative electroderesearch_0694__mat__mat_activated_carbon | Electrode · Composite Component · Composite | Activated carbon negative electrode measured in a three-electrode system in 3 M KOH; exact AC electrode formulation not separately specified.nickel foam current collector inferred from shared electrode method | SI p.5 · Supplementary Materials · Fig. S9 |
| Ni2(bdc)2P composite working electroderesearch_0694__mat__mat_ni_bdc_dabco | Electrode · Pristine Control · Composite | 70 wt% Ni2(bdc)2P active material, 20 wt% carbon black, 10 wt% PTFE in ethanol; coated, vacuum dried at 110 C for 12 h, pressed at 10 MPa for 10 s.nickel foam current collector, 1 cm x 1 cm | 2 · 2.3 Electrochemical measurements |
| Ni2(bdc)2P powderresearch_0694__mat__mat_ni_bdc_dabco | Powder · Pristine Control · Pristine Framework | Solvothermally prepared, washed with methanol and DMF, then vacuum activated at 110 C for 12 h. | 2 · 2.1 Synthesis of pillared Ni-based MOFs · Fig. 1 |
| Zn2(bdc)2P composite working electroderesearch_0694__mat__mat_zn_bdc_dabco | Electrode · Pristine Control · Composite | Electrode prepared using the same 70:20:10 active material/carbon black/PTFE formulation.nickel foam current collector, 1 cm x 1 cm | 7-8 · 3.2 Electrochemical measurements · Fig. 6; Fig. S7 referenced |
| Zn2(bdc)2P powderresearch_0694__mat__mat_zn_bdc_dabco | Powder · Pristine Control · Pristine Framework | Prepared by a similar solvothermal procedure using only Zn(NO3)2.6H2O as metal source. | 2 · 2.1 Synthesis of pillared Ni-based MOFs |
| (Zn/Ni)2(bdc)2P//AC asymmetric supercapacitorresearch_0694__mat__mat_znni_bdc_dabco_ac_asc | Electrode · Composite Sample · Composite | (Zn/Ni)2(bdc)2P positive electrode paired with activated carbon negative electrode; electrode masses balanced by q+ = q-. | 8 · 3.2 Electrochemical measurements · Fig. 7 |
| (Zn/Ni)2(bdc)2P composite working electroderesearch_0694__mat__mat_znni_bdc_dabco | Electrode · Target Sample · Composite | 70 wt% active material, 20 wt% carbon black and 10 wt% PTFE slurry on nickel foam; dried and pressed.nickel foam current collector, 1 cm x 1 cm | 2 · 2.3 Electrochemical measurements |
| (Zn/Ni)2(bdc)2P powderresearch_0694__mat__mat_znni_bdc_dabco | Powder · Target Sample · Mixed Metal | Solvothermally prepared mixed-metal pillared MOF; activated under vacuum at 110 C for 12 h. | 2 · 2.1 Synthesis of pillared Ni-based MOFs · Fig. 1 |