Wang L., Zou J., Chen S. et al. · Electrochimica Acta · 2017 · 304-310
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 authors state that no zinc metallic particles form during cycling because the CV lacks the typical Zn2+/Zn reduction peak near 1.2 V vs Li+/Li.
Caveat: Evidence is absence of a CV peak; no post-mortem microscopy for Zn metal is shown.
306 · Results and discussion · Fig. 3a-c · Linked to 3 structured results
The amorphous ZnTPA phase is assigned as quasi-amorphous zinc terephthalate rather than carbonised material.
Caveat: Raman spectrum supporting the no-carbon statement is not shown in the main article.
305 · Results and discussion · Fig. 1b · Linked to 1 structured result
Amorphous ZnTPA has higher lithium storage capacity and better cycling retention than crystalline ZnTPA under comparable electronic conductivity.
Caveat: Battery electrodes are composites containing 30 wt% carbon black; authors deduct carbon-black contribution for cycling capacity comparison.
304 · Abstract · Linked to 6 structured results
The amorphous structure is proposed to provide isotropic lithium diffusion pathways, shorter Li-ion diffusion length and better electrolyte penetration.
Caveat: Mechanistic interpretation is qualitative; no direct diffusion length or absolute diffusivity was tabulated.
307-308 · Results and discussion · Fig. 4 · Linked to 2 structured results
The authors attribute the rate-determining factor for solid zinc terephthalate electrodes to lithium-ion migration rather than charge transfer.
Caveat: Absolute Li-ion diffusion coefficients are not reported; the conclusion is based on comparable electronic conductivity and relative CV peak-current slopes.
308-309 · Conclusions · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| carbon black control electrode material | C | unknown · UnknownCommercial/conductive carbon black used as additive and electrochemical control. | 307-308 · Results and discussion · Fig. 3f |
| amorphous zinc terephthalate (ZnTPA-amor) | ZnC8H4O4Zn-O coordination framework collapsed to quasi-amorphous zinc terephthalate · terephthalate (1,4-benzenedicarboxylate, TPA) | unknown · PristineQuasi-amorphous phase produced by annealing crystalline ZnTPA at 380 deg C; smooth XRD background and no Raman carbon peaks indicate no carbonisation. | 305 · Results and discussion · Fig. 1b |
| well-crystalline zinc terephthalate (ZnTPA) | ZnC8H4O4Zn-O coordination framework inherited from zinc terephthalate · terephthalate (1,4-benzenedicarboxylate, TPA) | unknown · PristineAnhydrous ZnTPA obtained by calcining ZnTPA.2H2O at 300 deg C; XRD indicates good crystallinity but the article states that this phase had not previously been reported. | 305 · Results and discussion · Fig. 1b |
| zinc terephthalate dihydrate (ZnTPA.2H2O) | ZnC8H4O4.2H2OZn centres coordinated by oxygen atoms in tetrahedral Zn-O inorganic layers · terephthalate (1,4-benzenedicarboxylate, TPA) | 2D · PristinePure C2/c phase; alternating tetrahedral Zn-O inorganic layers and terephthalate organic layers along the [010] projection. | 305-306 · Results and discussion · Fig. 1b-d |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| carbon black control electroderesearch_0739__mat__mat_carbon_black_control | Electrode · Pristine Control · Composite | Control electrode for galvanostatic discharge-charge profiles. | 308 · Figure caption · Fig. 3f |
| amorphous ZnTPA Li-ion half-cell electroderesearch_0739__mat__mat_zntpa_amorphous | Electrode · Composite Sample · Composite | Slurry electrode assembled in 2032 coin cells with Li metal counter electrode. | 305 · 2.3 Cell assembling and electrochemical test |
| amorphous ZnTPA pressed pelletresearch_0739__mat__mat_zntpa_amorphous | Pellet · Target Sample · Pristine Framework | Powder pressed into pellet, 13 mm diameter, for direct-voltage resistance measurement.about 0.5 mm | 305 · 2.3 Cell assembling and electrochemical test |
| amorphous ZnTPA powder (ZnTPA-amor)research_0739__mat__mat_zntpa_amorphous | Powder · Target Sample · Pristine Framework | Formed by heating crystalline ZnTPA at 380 deg C for 1 h. | 305 · 2.1 Materials synthesis |
| crystalline ZnTPA Li-ion half-cell electroderesearch_0739__mat__mat_zntpa_crystalline | Electrode · Composite Sample · Composite | Slurry electrode assembled in 2032 coin cells with Li metal counter electrode. | 305 · 2.3 Cell assembling and electrochemical test |
| crystalline ZnTPA pressed pelletresearch_0739__mat__mat_zntpa_crystalline | Pellet · Pristine Control · Pristine Framework | Powder pressed into pellet, 13 mm diameter, for direct-voltage resistance measurement.about 0.5 mm | 305 · 2.3 Cell assembling and electrochemical test |
| well-crystalline anhydrous ZnTPA powderresearch_0739__mat__mat_zntpa_crystalline | Powder · Pristine Control · Pristine Framework | Annealed from ZnTPA.2H2O at 300 deg C for 1 h under argon. | 305 · 2.1 Materials synthesis |
| ZnTPA.2H2O Li-ion half-cell electroderesearch_0739__mat__mat_zntpa_hydrate | Electrode · Composite Sample · Composite | Slurry electrode assembled in 2032 coin cells with Li metal counter electrode. | 305 · 2.3 Cell assembling and electrochemical test |
| ZnTPA.2H2O pressed pelletresearch_0739__mat__mat_zntpa_hydrate | Pellet · Pristine Control · Pristine Framework | Powder pressed into pellet, 13 mm diameter, for direct-voltage resistance measurement.about 0.5 mm | 305 · 2.3 Cell assembling and electrochemical test |
| as-synthesised ZnTPA.2H2O powderresearch_0739__mat__mat_zntpa_hydrate | Powder · Pristine Control · Pristine Framework | White hydrated precipitate prepared at 80 deg C and washed with water and ethanol. | 305 · 2.1 Materials synthesis |