Fan H., Yu H., Zhang Y. et al. · Nano Energy · 2017 · 168-176
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.
YC-ZnO delivers superior lithium-ion battery rate capacity and cycling stability compared with the solid ZnO control.
Caveat: Application performance is measured on composite electrodes containing acetylene black and PVDF, not neat powder conductivity.
173-175 · 3. Results and discussions; 4. Conclusion · Figs. 7-8 · Linked to 5 structured results
The carbon layer around ZnO nanocrystals forms a conducting network that bridges individual ZnO nanocrystals and improves charge transfer.
Caveat: Direct electronic conductivity was not measured; EIS support is qualitative because SI Fig. S5 image is absent.
169, 173 · 3. Results and discussions · Fig. 3e-f; Fig. S5 · Linked to 5 structured results
Air and Ar/air annealing of ZnCP yield wurtzite-type ZnO products without detectable impurity peaks.
Caveat: The supporting XRD plot is in SI Fig. S1, but the local SI has only captions; the phase statement is from main text.
169 · 3. Results and discussions · Fig. S1 · Linked to 3 structured results
The hollow yolk-shell space buffers volume expansion during cycling, preserving electrode morphology while solid ZnO pulverises.
174-175 · 3. Results and discussions · Fig. 9 · Linked to 3 structured results
Sequential Ar then air annealing creates yolk-shell ZnO@C microspheres because surface nanoparticles first form a dense ZnO shell, then inner nanoparticles decompose at different rates and shrink.
Caveat: Mechanism is proposed from morphology and schematic rather than direct in situ observation.
171 · 3. Results and discussions · Fig. 4; Fig. S2 · Linked to 4 structured results
YC-ZnO exhibits higher apparent Li-ion diffusion coefficients and lower apparent charge-transfer resistance than ZnO control, supporting faster electrochemical kinetics.
Caveat: Reported fitted coefficients are unitless in the text and appear to represent AD^1/2 rather than absolute diffusion coefficients.
172-173 · 3. Results and discussions · Fig. 6c-d · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| hierarchical yolk-shell carbon-coated ZnO microspheres (YC-ZnO) | ZnO@C with N-containing carbonZn in wurtzite ZnO nanocrystals | 0D · CompositeYolk-shell microspheres assembled from ZnO@C nanocrystals; ZnO wurtzite phase; continuous carbon layer around ZnO nanocrystals. | 168-171 · Abstract; 3. Results and discussions · Figs. 2e-h, 3, 4 |
| zinc-cyanide hybrid coordination polymer microspheres (ZnCP) | Zn[Zn(CN)4].xH2O; discussed structurally as Zn(CN)2Zn2+ tetrahedral centres · cyanide bridges; linear Zn-CN-Zn linkages | 3D · PristineBody-centred cubic Zn(CN)2, JCPDS 06-0175, space group P-43m, a=b=c=5.905 A. | 169 · 3. Results and discussions · Fig. 1h-i |
| porous ZnO microspheres | ZnOZn in wurtzite ZnO | 0D · DerivedWurtzite-type ZnO with hexagonal close-packed structure, JCPDS 36-1451; P63mc, a=b=3.25 A, c=5.21 A. | 169 · 3. Results and discussions · Fig. S1; Fig. 2a-d |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| YC-ZnO electroderesearch_0490__mat__mat_yc_zno | Electrode · Target Sample · Composite | Slurry-coated electrode dried at 70 deg C overnight and assembled in CR2032 coin cells.copper foil | 169 · 2.3. Electrochemical measurements |
| YC-ZnO microspheresresearch_0490__mat__mat_yc_zno | Powder · Target Sample · Composite | ZnCP calcined at 500 deg C for 3 h in argon, cooled, then calcined at 300 deg C for 3 h in air. | 169 · 2.1. Preparation · Figs. 2e-h, 3 |
| monodispersed ZnCP microspheresresearch_0490__mat__mat_zncp | Powder · Composite Component · Pristine Framework | As-prepared precipitate, filtered, washed and vacuum-dried at 60 deg C for 24 h. | 169 · 2.1. Preparation of monodispersed Zn[Zn(CN)4].xH2O microspheres (ZnCP) |
| ZnO control electroderesearch_0490__mat__mat_zno | Electrode · Pristine Control · Composite | Slurry-coated electrode dried at 70 deg C overnight.copper foil | 169 · 2.3. Electrochemical measurements |
| ZnO microspheresresearch_0490__mat__mat_zno | Powder · Pristine Control · Unknown | ZnCP calcined in air at 500 deg C for 3 h. | 169 · 2.1. Preparation · Fig. 2a-d |