Cheng T.-M., Wang S.-C., Lee P.-Y. et al. · Journal of Energy Storage · 2023 · 107709
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 M-H10/rGO BSH combines high energy/power density with 84.8% capacitance retention and 96.1% Coulombic efficiency after 10000 cycles.
Caveat: Device active-mass basis and rGO electrode preparation are not fully detailed in the main text.
p008 / journal page 8 · 4. Conclusions · Fig. 7 · Linked to 4 structured results
M-H10 gives the highest capacitance because thin, individually grown sheets maximise electrolyte contact and mixed ZIF-L-Co/hydroxide composition supplies multiple redox reactions.
Caveat: Surface area/porosity values are not reported, so the area argument is morphological rather than BET-confirmed.
p006-p007 / journal pages 6-7 · 3.2. Electrochemical analysis · Fig. 4; Fig. 5; Table 2 · Linked to 4 structured results
Increasing NH4HF2 isolates 2-methylimidazole from Co/Ni salts, suppresses ZIF-L-Co formation, and promotes cobalt/nickel hydroxide formation.
Caveat: Mechanistic interpretation is inferred from XRD/XPS trends rather than directly observed reaction intermediates.
p004 / journal page 4 · 3.1. Morphology and composition analysis · Fig. 2 · Linked to 3 structured results
The cycling capacitance first increases by activation from ion intercalation/deintercalation that broadens pores, then decreases due to active-material peeling or irreversible reactions.
Caveat: The explanation is proposed from cycling behaviour; no post-mortem morphology is shown in the main article.
p008 / journal page 8 · 3.3. Electrochemical analysis of asymmetric supercapacitor · Fig. 7f · Linked to 1 structured result
Sub-ohm fitted Rs and Rct values are attributed to excellent electroactivity of NH4HF2-derived M-H electrodes and the high conductivity of the nickel foam substrate.
Caveat: EIS resistance includes electrode/electrolyte interface and Ni foam substrate effects; it is not a direct MOF bulk conductivity measurement.
p005-p006 / journal pages 5-6 · 3.2. Electrochemical analysis · Fig. 4c-d; Table 2 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| M-H10/rGO battery-supercapacitor hybrid | M-H10 positive electrode || rGO negative electrode in KOHCo/Ni active positive electrode · 2-methylimidazole-derived M-H10 component | unknown · CompositeTwo-electrode battery-supercapacitor hybrid using M-H10 as positive electrode and rGO as negative electrode. | p007 / journal page 7 · 3.3. Electrochemical analysis of asymmetric supercapacitor · Fig. 6 |
| M-H10 ZIF67 derivative | Co/Ni ZIF-L-Co and cobalt/nickel hydroxide ZIF67 derivativeCo and Ni from cobalt nitrate hexahydrate and nickel nitrate hexahydrate · 2-methylimidazole-derived imidazolate plus hydroxide/HF2-associated surface species | 2D · DerivedThin sheet-like mixed ZIF-L-Co and cobalt/nickel hydroxide derivative; optimal electrochemical sample. | p006 / journal page 6 · 3.2. Electrochemical analysis · Fig. 4; Table 2 |
| M-H15 ZIF67 derivative | Co/Ni ZIF-L-Co and cobalt/nickel hydroxide ZIF67 derivativeCo and Ni from cobalt nitrate hexahydrate and nickel nitrate hexahydrate · 2-methylimidazole-derived imidazolate plus hydroxide/HF2-associated surface species | 2D · DerivedSmall pieces of sheet-like structures with nearly similar amounts of ZIF-L-Co and cobalt/nickel hydroxides. | p004 / journal page 4 · 3.1. Morphology and composition analysis · Fig. 2 |
| M-H2 ZIF67 derivative | Co/Ni ZIF-L-Co-rich ZIF67 derivative with low NH4HF2 incorporationCo and Ni from cobalt nitrate hexahydrate and nickel nitrate hexahydrate · 2-methylimidazole-derived imidazolate | 2D · DerivedMainly ZIF-L-Co formed from ZIF67 with small amounts of structure-directing ammonium bifluoride incorporation; plate-like flower configuration. | p004 / journal page 4 · 3.1. Morphology and composition analysis · Fig. 2 |
| M-H20 ZIF67 derivative | Co/Ni hydroxide-rich ZIF67 derivativeCo and Ni hydroxide species from cobalt nitrate hexahydrate and nickel nitrate hexahydrate · reduced ZIF-L-Co/2-methylimidazole contribution | 2D · DerivedHydroxide-dominated derivative; primarily nickel and cobalt hydroxide with small ZIF-L-Co peaks. | p004 / journal page 4 · 3.1. Morphology and composition analysis · Fig. 2 |
| M-H5 ZIF67 derivative | Co/Ni ZIF-L-Co-rich ZIF67 derivative with low NH4HF2 incorporationCo and Ni from cobalt nitrate hexahydrate and nickel nitrate hexahydrate · 2-methylimidazole-derived imidazolate | 2D · DerivedMainly ZIF-L-Co with smaller, more separated plate-like structures than M-H2. | p003 / journal page 3 · 3.1. Morphology and composition analysis · Fig. 1 |
| reduced graphene oxide | rGO | 2D · DerivedCarbon negative electrode component for the battery-supercapacitor hybrid. | p007 / journal page 7 · 3.3. Electrochemical analysis of asymmetric supercapacitor · Fig. 6 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| M-H10/rGO battery-supercapacitor hybridresearch_0665__mat__mat_bsh_mh10_rgo | Electrode · Composite Sample · Composite | two-electrode device with M-H10 positive electrode, rGO negative electrode and KOH electrolytetwo nickel-foam electrodes | p007 / journal page 7 · 3.3. Electrochemical analysis of asymmetric supercapacitor · Fig. 6 |
| M-H10 battery-type electroderesearch_0665__mat__mat_mh10 | Electrode · Target Sample · Composite | M-H10/carbon black/PTFE conductive paste on Ni foam, dried 60 C for 24 hnickel foam, 94 PPI, 1 x 3 cm2 | p006 / journal page 6 · 3.2. Electrochemical analysis · Table 2 |
| M-H10 powderresearch_0665__mat__mat_mh10 | Nanosheet · Target Sample · Mixed Metal | as-synthesised powder filtered, washed with DIW and dried at 60 C for 24 hthin sheets; TEM inset scale bar 50 nm | p003 / journal page 3 · 3.1. Morphology and composition analysis · Fig. 1 |
| M-H15 battery-type electroderesearch_0665__mat__mat_mh15 | Electrode · Target Sample · Composite | M-H15/carbon black/PTFE conductive paste on Ni foam, dried 60 C for 24 hnickel foam, 94 PPI, 1 x 3 cm2 | p006 / journal page 6 · 3.2. Electrochemical analysis · Table 2 |
| M-H15 powderresearch_0665__mat__mat_mh15 | Nanosheet · Target Sample · Mixed Metal | as-synthesised powder filtered, washed with DIW and dried at 60 C for 24 h | p003 / journal page 3 · 3.1. Morphology and composition analysis · Fig. 1 |
| M-H20 battery-type electroderesearch_0665__mat__mat_mh20 | Electrode · Target Sample · Composite | M-H20/carbon black/PTFE conductive paste on Ni foam, dried 60 C for 24 hnickel foam, 94 PPI, 1 x 3 cm2 | p006 / journal page 6 · 3.2. Electrochemical analysis · Table 2 |
| M-H20 powderresearch_0665__mat__mat_mh20 | Nanosheet · Target Sample · Mixed Metal | as-synthesised powder filtered, washed with DIW and dried at 60 C for 24 h | p004 / journal page 4 · 3.1. Morphology and composition analysis · Fig. 2 |
| M-H2 battery-type electroderesearch_0665__mat__mat_mh2 | Electrode · Target Sample · Composite | M-H2/carbon black/PTFE conductive paste on Ni foam, dried 60 C for 24 hnickel foam, 94 PPI, 1 x 3 cm2 | p002 / journal page 2 · 2.2. Electrode fabrication and BSH assembly |
| M-H2 powderresearch_0665__mat__mat_mh2 | Powder · Target Sample · Mixed Metal | as-synthesised powder filtered, washed with DIW and dried at 60 C for 24 haround 200 nm plate thickness | p003 / journal page 3 · 3.1. Morphology and composition analysis · Fig. 1 |
| M-H5 battery-type electroderesearch_0665__mat__mat_mh5 | Electrode · Target Sample · Composite | M-H5/carbon black/PTFE conductive paste on Ni foam, dried 60 C for 24 hnickel foam, 94 PPI, 1 x 3 cm2 | p002 / journal page 2 · 2.2. Electrode fabrication and BSH assembly |
| M-H5 powderresearch_0665__mat__mat_mh5 | Powder · Target Sample · Mixed Metal | as-synthesised powder filtered, washed with DIW and dried at 60 C for 24 haround 180 nm plate thickness | p003 / journal page 3 · 3.1. Morphology and composition analysis · Fig. 1 |
| rGO negative electroderesearch_0665__mat__mat_rgo | Electrode · Composite Component · Derived Carbon | negative electrode in two-electrode BSH; preparation not describednickel foam in BSH schematic | p007 / journal page 7 · 3.3. Electrochemical analysis of asymmetric supercapacitor · Fig. 6 |