Measurement evidence
Electrochemical properties of uniquely structured Fe2O3 and FeSe2/graphitic-carbon microrods synthesized by applying a metal-organic framework · Park S.-K., Kim J.K., Kang Y.C. · Chemical Engineering Journal · 2018 · 2440-2449
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
H-Fe2O3-NSA microrods · Powder
Li metal counter electrode; polypropylene separator; 1 M LiPF6 in FEC/DMC 1:1 v/v; 0.001-3 V; CV at 0.1 mV s-1; electrode diameter 14 mm; mass loading about 1.2 mg cm-2; EIS 0.01 Hz-100 kHz
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|
H-FeSe2/GC microrods · Powder
Na metal counter electrode; polypropylene separator; 1 M NaClO4 in EC/DMC 1:1 v/v plus 5 wt% FEC; 0.001-3 V; CV at 0.1 mV s-1; electrode diameter 14 mm; mass loading about 1.2 mg cm-2; EIS 0.01 Hz-100 kHz
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|
H-Fe2O3-NSA microrods · Powder
LIB anode cycling at 1.0 A g-1 for 400 cycles; H-Fe2O3-NSA rate test from 1.0 to 10.0 A g-1 and restored 1.0 A g-1
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| discharge capacity at 400th cycle | 627 mA h g-1 at 1.0 A g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4c |
| capacity retention from second cycle to 400th cycle | 64% | — | — | Text Rounded Reported | p006 / journal p2445 · Results & discussion · Fig. 4c |
| discharge capacity at 400th cycleMarked as a best value within this paper | 973 mA h g-1 at 1.0 A g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4c |
| rate discharge capacity | 624 mA h g-1 at 10.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| rate discharge capacity | 983 mA h g-1 at 1.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| rate discharge capacity | 890 mA h g-1 at 2.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| rate discharge capacity | 832 mA h g-1 at 3.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| rate discharge capacity | 761 mA h g-1 at 5.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| rate discharge capacity | 696 mA h g-1 at 7.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| discharge capacity after current restored | 913 mA h g-1 at restored 1.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| capacity retention when current increased 10-fold | 63% from 1.0 to 10 A g-1 | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 4d |
| capacity retention from second cycle to 400th cycleMarked as a best value within this paper | 92% | — | — | Text Rounded Reported | p006 / journal p2445 · Results & discussion · Fig. 4c |
H-Fe2O3-NSA microrods · Powder
LIB EIS before cycling after cell assembly and after designated cycles in fully charged state; frequency range 0.01 Hz-100 kHz
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| charge-transfer resistance after 150 cycles | 53.9 ohm | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 5c |
| charge-transfer resistance after 50 cycles | 23.0 ohm | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 5c |
| charge-transfer resistance trend | lower Rct than D-Fe2O3-NSA before cycling and nearly constant with cycling | — | — | Qualitative Qualitative | p007 / journal p2446 · Results & discussion · Fig. 5a-b |
H-Fe2O3-NSA microrods · Powder
LIB anodes at current density 1 A g-1; comparison of H-Fe2O3-NSA and D-Fe2O3-NSA
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| initial charge capacity | 965 mA h g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4b |
| initial discharge capacity | 1235 mA h g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4b |
| initial Coulombic efficiency | 78% for both microrods | — | — | Text Rounded Reported | p006 / journal p2445 · Results & discussion · Fig. 4b |
| initial charge capacity | 1023 mA h g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4b |
| initial discharge capacity | 1308 mA h g-1 | — | — | Text Exact Reported | p006 / journal p2445 · Results & discussion · Fig. 4b |
H-FeSe2/GC microrods · Powder
SIB cycling at 0.2 A g-1 over 100 cycles; rate performance from 0.2 to 5.0 A g-1
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| rate discharge capacity | 494 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6d |
| rate discharge capacity | 368 mA h g-1 at 5.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6d |
| discharge capacity after 100 cyclesMarked as a best value within this paper | 587 mA h g-1 after 100 cycles at 0.2 A g-1 | — | — | Text Exact Reported | p001 / journal p2440 · Abstract · Fig. 6c |
| reversible capacity after 30th cycle | 535 mA h g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6c |
| reversible capacity before increase over cycling | 529 mA h g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6c |
| rate discharge capacity | 522 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6d |
| rate discharge capacity | 457 mA h g-1 at 5.0 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6d |
H-FeSe2/GC microrods · Powder
SIB EIS before cycling immediately after cell assembly and after designated cycles in fully charged state
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| fresh-cell charge-transfer resistance | 882 ohm | — | — | Text Exact Reported | p008 / journal p2447 · Results & discussion · Fig. 7a |
| post-cycling Rct trend | both samples had nearly constant Rct values regardless of number of cycles | — | — | Qualitative Qualitative | p008 / journal p2447 · Results & discussion · Fig. 7b-c |
| fresh-cell charge-transfer resistanceMarked as a best value within this paper | 727 ohm | — | — | Text Exact Reported | p008 / journal p2447 · Results & discussion · Fig. 7a |
H-FeSe2/GC microrods · Powder
SIB anodes at current density 0.2 A g-1; comparison of H-FeSe2/GC and D-FeSe2/C
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| initial Coulombic efficiency | 75% | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
| initial charge capacity | 527 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
| initial discharge capacity | 705 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
| initial Coulombic efficiencyMarked as a best value within this paper | 80% | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
| initial charge capacity | 511 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
| initial discharge capacity | 642 mA h g-1 at 0.2 A g-1 | — | — | Text Exact Reported | p007 / journal p2446 · Results & discussion · Fig. 6b |
graphitic carbon microrods · Powder
Graphitic carbon microrods assembled with sodium metal counter electrode to evaluate graphitic-carbon capacity contribution
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| graphitic-carbon reversible capacity at 40th cycle | 223 mA h g-1 | — | — | Text Exact Reported | p008 / journal p2447 · Results & discussion · Fig. S13 referenced |
| graphitic-carbon initial discharge capacity | 848 mA h g-1 | — | — | Text Exact Reported | p008 / journal p2447 · Results & discussion · Fig. S13 referenced |
H-Fe2O3-NSA microrods · Powder
First five cycles, 0.001-3 V vs Li/Li+, scan rate 0.1 mV s-1
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| anodic oxidation peak | around 1.61 V | — | — | Text Approximate | p006 / journal p2445 · Results & discussion · Fig. 4a |
| anodic oxidation peak | around 1.82 V | — | — | Text Approximate | p006 / journal p2445 · Results & discussion · Fig. 4a |
| first cathodic conversion reduction peak | around 0.62 V | — | — | Text Approximate | p006 / journal p2445 · Results & discussion · Fig. 4a |
| first cathodic weak reduction peak | around 1.57 V | — | — | Text Approximate | p006 / journal p2445 · Results & discussion · Fig. 4a |
| first cathodic weak reduction peak | around 0.95 V | — | — | Text Approximate | p006 / journal p2445 · Results & discussion · Fig. 4a |
| subsequent-cycle shifted reduction peak | 0.81 V | — | — | Text Rounded Reported | p006 / journal p2445 · Results & discussion · Fig. 4a |
H-FeSe2/GC microrods · Powder
First five cycles, 0.001-3 V vs Na/Na+, scan rate 0.1 mV s-1
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| anodic peak | 1.53 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| anodic peak | 2.06 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| anodic peak | 2.34 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| first cathodic peak | 1.11 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| first cathodic broad peak | 0.61 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| first cathodic broad peak | 0.41 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
| subsequent-cycle shifted reduction peak | 1.84 V | — | — | Text Rounded Reported | p007 / journal p2446 · Results & discussion · Fig. 6a |
H-Fe2O3-NSA microrods · Powder
Voltage range 0.001-3.0 V; current density 1.0 A g-1; this-work row for hollow Fe2O3 nanospheres aggregated microrods.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| SI Table S1 discharge capacity at 400th cycle | 978 (400th) | — | — | SI Table Exact Reported | p014 / SI S-14 · Supporting Information · Table S1 |
| SI Table S1 rate performance at 10.0 A g-1 | 624 (10.0 A g-1) | — | — | SI Table Exact Reported | p014 / SI S-14 · Supporting Information · Table S1 |
H-FeSe2/GC microrods · Powder
Voltage range 0.001-3.0 V; current density 0.2 A g-1; this-work row for hollow FeSe2 nanospheres aggregated microrods.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| SI Table S2 discharge capacity at 100th cycleMarked as a best value within this paper | 587 (100th) | — | — | SI Table Exact Reported | p015 / SI S-15 · Supporting Information · Table S2 |
| SI Table S2 rate performance at 5.0 A g-1 | 457 (5.0 A g-1) | — | — | SI Table Exact Reported | p015 / SI S-15 · Supporting Information · Table S2 |