Park S.-K., Kim J.K., Kang Y.C. · Chemical Engineering Journal · 2018 · 2440-2449
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 paper does not report intrinsic electrical transport for pristine MIL-88; conductive behaviour is discussed for MOF-derived graphitic-carbon composites and electrodes.
Caveat: Extraction therefore treats MIL-88 as a pristine MOF precursor/control rather than as a conductive MOF material.
p001-p002 / journal p2440-p2441 · Abstract; Introduction · Linked to 2 structured results
The SI comparison table gives 978 mA h g-1 for the this-work H-Fe2O3-NSA 400th-cycle LIB capacity, while the main text and abstract give 973 mA h g-1.
Caveat: Both values are reported by the paper; no attempt was made to reconcile the 5 mA h g-1 discrepancy.
p014 / SI S-14 · Supporting Information · Table S1 · Linked to 2 structured results
Graphitic carbon in H-FeSe2/GC prevents structural collapse and improves electron transport during cycling.
Caveat: The paper reports EIS-derived Rct and electrochemical performance, not direct intrinsic electrical conductivity.
p001 / journal p2440 · Abstract · Linked to 4 structured results
The hollow nanosphere aggregate structure in H-Fe2O3-NSA improves LIB cycling stability and Li-ion diffusion relative to dense D-Fe2O3-NSA.
Caveat: Comparative evidence is from electrochemical tests; no direct diffusion coefficient is reported.
p007 / journal p2446 · Results & discussion · Figs. 4 and 5 · Linked to 6 structured results
Hollow FeSe2 nanospheres plus graphitic carbon improve Na-ion diffusion/electrical conductivity and high-rate SIB performance relative to dense D-FeSe2/C.
Caveat: Electrical conductivity is inferred from EIS/rate performance; no four-probe conductivity measurement is reported.
p008 / journal p2447 · Results & discussion · Figs. 6 and 7 · Linked to 6 structured results
Oxidising at 350 deg C causes heat-evolution-driven sintering that destroys hollow Fe2O3 shells and produces dense Fe2O3 nanocrystal aggregates.
Caveat: Mechanistic interpretation is author-assigned from morphology/XRD/TEM evidence; SI figures supporting the dense morphology are available and read.
p005 / journal p2444 · Results & discussion · Figs. S4 and S2b referenced · Linked to 1 structured result
Metallic Fe nanocrystals embedded in graphitic carbon convert into hollow Fe2O3 or FeSe2 nanospheres through nanoscale Kirkendall diffusion during oxidation or selenization.
Caveat: Mechanistic support is inferred from morphology, phase assignment, and literature; no in situ diffusion measurement is reported.
p003 / journal p2442 · Results & discussion · Scheme 1 · Linked to 2 structured results
MIL-88 microrods act as both precursor and template for Fe@GC, H-Fe2O3-NSA, and H-FeSe2/GC microrods.
Caveat: This is an experimental synthesis claim; MIL-88 crystallographic details rely on SI/literature comparison not locally available.
p001 / journal p2440 · Abstract
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| D-Fe2O3-NSA microrods | Fe2O3 with trace carbonFe · not applicable; MOF-derived material | unknown · Deriveddense Fe2O3 nanosphere-aggregate microrods; hollow structure lost by high-temperature sintering | p005 / journal p2444 · Results & discussion · Figs. S4 and S2b referenced |
| D-FeSe2/C microrods | FeSe2/CFe · not applicable; carbon derived from MIL-88 ligands | unknown · Compositedense FeSe2 nanocrystal aggregate/carbon microrods | p006 / journal p2445 · Results & discussion · Figs. S10 and S8 referenced |
| Fe@GC microrods | Fe/Cmetallic Fe nanocrystals · derived graphitic carbon from MIL-88 organic ligands | unknown · Derivedmetallic Fe nanocrystals embedded in graphitic carbon framework, with minor Fe2O3 and Fe3C by XRD/SAED | p003 / journal p2442 · Results & discussion · Fig. 1; Scheme 1 |
| graphitic carbon microrods | Cnone · not applicable; carbon after Fe removal | unknown · Derivedporous graphitic carbon microrods obtained by HCl etching of Fe@GC | p008 / journal p2447 · Results & discussion · Fig. S13 referenced |
| H-Fe2O3-NSA microrods | Fe2O3 with trace carbonFe · not applicable; MOF-derived material | unknown · Derivedhexagonal Fe2O3 hollow nanosphere aggregate microrods | p004-p005 / journal p2443-p2444 · Results & discussion · Fig. 2 |
| H-FeSe2/GC microrods | FeSe2/CFe · not applicable; graphitic carbon derived from MIL-88 ligands | unknown · Compositeorthorhombic FeSe2 hollow nanosphere aggregate distributed in graphitic carbon microrods | p006 / journal p2445 · Results & discussion · Fig. 3 |
| MIL-88 microrods | Fe-fumarate MOF, exact MIL-88 formula not statedFe(III) · fumaric acid / fumarate | 3D · PristineMIL-88, pure phase by XRD compared with simulated/literature pattern | p002 / journal p2441 · Experimental; Results & discussion · Fig. S1 referenced |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| D-Fe2O3-NSA microrodsresearch_0346__mat__mat_d_fe2o3_nsa | Powder · Pristine Control · Derived Carbon | reduced MIL-88 oxidised at 350 deg C in air; dense comparison LIB anode | p002 / journal p2441 · Experimental |
| D-FeSe2/C microrodsresearch_0346__mat__mat_d_fese2_c | Powder · Pristine Control · Composite | as-prepared MIL-88 directly selenised at 250 deg C under 10% H2/Ar; dense comparison SIB anode | p002 / journal p2441 · Experimental |
| Fe@GC microrodsresearch_0346__mat__mat_fe_gc | Powder · Composite Component · Derived Carbon | MIL-88 reduced and carbonised at 450 deg C under 5% H2/Ar | p002-p003 / journal p2441-p2442 · Experimental; Results & discussion · Fig. 1 |
| graphitic carbon microrodsresearch_0346__mat__mat_gc | Powder · Composite Component · Derived Carbon | Fe@GC etched overnight in diluted HCl; used as sodium half-cell control | p008 / journal p2447 · Results & discussion · Fig. S13 referenced |
| H-Fe2O3-NSA microrodsresearch_0346__mat__mat_h_fe2o3_nsa | Powder · Target Sample · Derived Carbon | Fe@GC oxidised at 300 deg C in air; used as LIB anode active material | p002 / journal p2441 · Experimental |
| H-FeSe2/GC microrodsresearch_0346__mat__mat_h_fese2_gc | Powder · Target Sample · Composite | Fe@GC selenised at 250 deg C under 10% H2/Ar; used as SIB anode active material | p002 / journal p2441 · Experimental |
| MIL-88 microrodsresearch_0346__mat__mat_mil88 | Powder · Pristine Control · Pristine Framework | as-prepared Fe-fumarate MIL-88 microrods | p002 / journal p2441 · Experimental |