Electrochemistry Application — Bimetal MOF nanosheets as efficient anode materials for lithium-ion batteries

7 measurement groups · 69 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Cyclic voltammetry

Voltammetry

CoxFe1-x-MOF powder/nanosheet series · Nanosheet

CV curves recorded between 0.01 and 3.0 V at 0.1 mV s-1 for Co-MOF, Fe-MOF, and Co1/2Fe1/2-MOF.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrodes
Measurement source: p007 / article p.10103 · Results and discussion · Fig. 6a-c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-MOF oxidation peak at 1.22 V	1.22 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6a
Co-MOF oxidation peak at 1.80 V	1.80 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6a
Co-MOF reduction peak at 0.69 V	0.69 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6a
Co-MOF reduction peak at 1.16 V	1.16 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6a
Co-MOF initial SEI-related reduction peak	around 0.6 V	—	—	Text Approximate	p007 / article p.10103 · Results and discussion · Fig. 6a
Co1/2Fe1/2-MOF oxidation peak at 1.15 VMarked as a best value within this paper	1.15 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6c
Co1/2Fe1/2-MOF oxidation peak at 1.98 VMarked as a best value within this paper	1.98 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6c
Co1/2Fe1/2-MOF reduction peak at 0.70 VMarked as a best value within this paper	0.70 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6c
Co1/2Fe1/2-MOF reduction peak at 1.27 VMarked as a best value within this paper	1.27 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6c
Fe-MOF oxidation peak at 1.35 V	1.35 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6b
Fe-MOF oxidation peak at 2.01 V	2.01 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6b
Fe-MOF reduction peak at 0.73 V	0.73 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6b
Fe-MOF reduction peak at 1.31 V	1.31 V	—	—	Text Rounded Reported	p008 / article p.10104 · Results and discussion · Fig. 6b
Fe-MOF SEI-related reduction peak	around 0.43 V	—	—	Text Approximate	p008 / article p.10104 · Results and discussion · Fig. 6b

Galvanostatic cycling comparison

Galvanostatic cycling

CoxFe1-x-MOF powder/nanosheet series · Nanosheet

CoxFe1-x-MOF electrodes cycled at 0.1 A g-1 for 200 cycles.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrodes compared across series
Measurement source: p005 / article p.10101 · Results and discussion · Fig. 5b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-MOF discharge capacity after 200 cycles at 0.1 A g-1	920 mAh g-1	—	—	Text Rounded Reported	p005 / article p.10101 · Results and discussion · Fig. 5b
Co-rich bimetal cycling capacity reported with composition typo	846 mAh g-1 for Co2/3Fe1/3-MOF in text; likely Co3/4Fe1/4-MOF series member	—	—	Text Uncertain	p005 / article p.10101 · Results and discussion · Fig. 5b
Fe-MOF reversible capacity after 200 cycles at 0.1 A g-1	670 mAh g-1	—	—	Text Rounded Reported	p005 / article p.10101 · Results and discussion · Fig. 5b
Fe-rich bimetal cycling capacity reported with composition typo	1053 mAh g-1 for Co1/3Fe2/3-MOF in text; likely Co1/4Fe3/4-MOF series member	—	—	Text Uncertain	p005 / article p.10101 · Results and discussion · Fig. 5b

Electrochemical impedance spectroscopy (EIS), CHI 660E

Impedance spectroscopy

CoxFe1-x-MOF powder/nanosheet series · Nanosheet

Nyquist plots and equivalent-circuit fits before cycling and after 200 cycles at delithiated state.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrodes compared across series
Measurement source: p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Fig. S6; Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co1/4Fe3/4-MOF Rct after 200 cycles	163 ohm	—	—	Text Rounded Reported	p009 / article p.10105 · Results and discussion · Table S3
Co3/4Fe1/4-MOF Rct after 200 cycles	83 ohm	—	—	Text Rounded Reported	p009 / article p.10105 · Results and discussion · Table S3
Co-MOF Rct after 200 cycles	300 ohm	—	—	Text Rounded Reported	p009-p011 / article pp.10105-10107 · Results and discussion · Fig. 6d; Table S3
Co1/2Fe1/2-MOF Rct after 200 cyclesMarked as a best value within this paper	44 ohm	—	—	Text Rounded Reported	p009 / article p.10105 · Results and discussion · Table S3
Fe-MOF Rct after 200 cycles	397 ohm	—	—	Text Rounded Reported	p009-p011 / article pp.10105-10107 · Results and discussion · Fig. 6d; Table S3
Co1/4Fe3/4-MOF Rct before cycling	551 ohm	—	—	Text Rounded Reported	p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Table S3
Co3/4Fe1/4-MOF Rct before cycling	244 ohm	—	—	Text Rounded Reported	p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Table S3
Co-MOF Rct before cycling	730 ohm	—	—	Text Rounded Reported	p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Table S3
Co1/2Fe1/2-MOF Rct before cyclingMarked as a best value within this paper	203 ohm	—	—	Text Rounded Reported	p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Table S3
Fe-MOF Rct before cycling	840 ohm	—	—	Text Rounded Reported	p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 6d; Table S3

Galvanostatic charge-discharge on LAND battery tester

Galvanostatic cycling

Co1/2Fe1/2-MOF LIB anode electrode · Electrode

CR2032 Li half-cells; voltage range 0.01-3.0 V vs Li/Li+; active mass basis; selected cycles and cycling at 0.1 A g-1.

Atmosphere: argon-filled glovebox for assembly
Geometry: coin-type half-cell; Li metal counter/reference; polypropylene separator; 1 M LiPF6 in EC/DEC 1:1
Context: MOF/carbon/binder composite electrode
Measurement source: p003-p005 / article pp.10099-10101 · Cells fabrication and electrochemical measurements; Results and discussion · Fig. 5a-b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co1/2Fe1/2-MOF coulombic efficiency after 200 cycles	99.3%	—	—	Text Exact Reported	p005 / article p.10101 · Results and discussion · Fig. 5b
Co1/2Fe1/2-MOF charge capacity after 200 cyclesMarked as a best value within this paper	1132.2 mAh g-1	—	—	Text Exact Reported	p005 / article p.10101 · Results and discussion · Fig. 5b
Co1/2Fe1/2-MOF discharge capacity after 200 cyclesMarked as a best value within this paper	1139.3 mAh g-1	—	—	Text Exact Reported	p005 / article p.10101 · Results and discussion · Fig. 5b
Co1/2Fe1/2-MOF initial coulombic efficiency	61.75%	—	—	Text Exact Reported	p004 / article p.10100 · Results and discussion · Fig. 5a
Co1/2Fe1/2-MOF initial charge capacity	1266.2 mAh g-1	—	—	Text Exact Reported	p004 / article p.10100 · Results and discussion · Fig. 5a
Co1/2Fe1/2-MOF initial discharge capacity	2050.3 mAh g-1	—	—	Text Exact Reported	p004 / article p.10100 · Results and discussion · Fig. 5a

Long-term galvanostatic cycling

Galvanostatic cycling

Co1/2Fe1/2-MOF LIB anode electrode · Electrode

Co1/2Fe1/2-MOF electrode tested at 2 A g-1 for 1000 cycles; text reports capacity after 500 cycles.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrode
Measurement source: p007 / article p.10103 · Results and discussion · Fig. 5d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co1/2Fe1/2-MOF reversible capacity after 500 cycles at 2 A g-1Marked as a best value within this paper	660 mAh g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5d
Co1/2Fe1/2-MOF capacity retention after 500 cyclesMarked as a best value within this paper	90%	—	—	Text Rounded Reported	p001 / article p.10097 · Abstract

Rate-capability galvanostatic cycling

Galvanostatic cycling

CoxFe1-x-MOF powder/nanosheet series · Nanosheet

Specific capacities measured at current densities from 0.1 to 2 A g-1; returned to 0.1 A g-1 for Co1/2Fe1/2-MOF.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrodes compared across series
Measurement source: p007 / article p.10103 · Results and discussion · Fig. 5c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co1/4Fe3/4-MOF rate capacity at 0.1 A g-1	909 mAh g-1 at 0.1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/4Fe3/4-MOF rate capacity at 0.2 A g-1	779 mAh g-1 at 0.2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/4Fe3/4-MOF rate capacity at 0.5 A g-1	652 mAh g-1 at 0.5 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/4Fe3/4-MOF rate capacity at 1 A g-1	531 mAh g-1 at 1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/4Fe3/4-MOF rate capacity at 2 A g-1	438 mAh g-1 at 2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co3/4Fe1/4-MOF rate capacity at 0.1 A g-1	989 mAh g-1 at 0.1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co3/4Fe1/4-MOF rate capacity at 0.2 A g-1	866 mAh g-1 at 0.2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co3/4Fe1/4-MOF rate capacity at 0.5 A g-1	788 mAh g-1 at 0.5 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co3/4Fe1/4-MOF rate capacity at 1 A g-1	706 mAh g-1 at 1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co3/4Fe1/4-MOF rate capacity at 2 A g-1	560 mAh g-1 at 2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co-MOF rate capacity at 0.1 A g-1	932 mAh g-1 at 0.1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co-MOF rate capacity at 0.2 A g-1	749 mAh g-1 at 0.2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co-MOF rate capacity at 0.5 A g-1	715 mAh g-1 at 0.5 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co-MOF rate capacity at 1 A g-1	584 mAh g-1 at 1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co-MOF rate capacity at 2 A g-1	501 mAh g-1 at 2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/2Fe1/2-MOF rate capacity at 0.1 A g-1Marked as a best value within this paper	1221 mAh g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/2Fe1/2-MOF rate capacity at 2 A g-1Marked as a best value within this paper	852 mAh g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Fe-MOF rate capacity at 0.1 A g-1	589 mAh g-1 at 0.1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Fe-MOF rate capacity at 0.2 A g-1	506 mAh g-1 at 0.2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Fe-MOF rate capacity at 0.5 A g-1	467 mAh g-1 at 0.5 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Fe-MOF rate capacity at 1 A g-1	414 mAh g-1 at 1 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Fe-MOF rate capacity at 2 A g-1	409 mAh g-1 at 2 A g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c
Co1/2Fe1/2-MOF recovered capacity when current returned to 0.1 A g-1Marked as a best value within this paper	1130 mAh g-1	—	—	Text Rounded Reported	p007 / article p.10103 · Results and discussion · Fig. 5c

Scan-rate CV kinetic analysis

Voltammetry

CoxFe1-x-MOF powder/nanosheet series · Nanosheet

CVs at scan rates 0.2-1.0 mV s-1; b values from log i versus log v; capacitive/diffusion contributions from i = k1v + k2v1/2.

Atmosphere: argon-filled glovebox for cell assembly
Geometry: CR2032 lithium half-cell
Context: MOF/carbon/binder composite electrodes
Measurement source: p008-p009 / article pp.10104-10105 · Results and discussion · Fig. 7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-MOF oxidation peak b value	0.81	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7d
Co-MOF reduction peak b value	0.71	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7d
Co1/2Fe1/2-MOF oxidation peak b valueMarked as a best value within this paper	0.97	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7f
Co1/2Fe1/2-MOF reduction peak b valueMarked as a best value within this paper	0.88	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7f
Fe-MOF oxidation peak b value	0.66	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7e
Fe-MOF reduction peak b value	0.60	—	—	Figure Axis Exact Reported	p008 / article p.10104 · Results and discussion · Fig. 7e
Co-MOF capacitive contribution at 0.2 mV s-1	52%	—	—	Text Rounded Reported	p009 / article p.10105 · Results and discussion · Fig. 7g
Co-MOF capacitive contribution at 1.0 mV s-1	70.27%	—	—	Text Exact Reported	p009 / article p.10105 · Results and discussion · Fig. 7g
Co1/2Fe1/2-MOF capacitive contribution at 0.2 mV s-1Marked as a best value within this paper	80.38%	—	—	Text Exact Reported	p009 / article p.10105 · Results and discussion · Fig. 7i
Co1/2Fe1/2-MOF capacitive contribution at 1.0 mV s-1Marked as a best value within this paper	96.62%	—	—	Text Exact Reported	p009 / article p.10105 · Results and discussion · Fig. 7i