Electrical Transport — From 2D to 3D: Postsynthetic Pillar Insertion in Electrically Conductive MOF

4 measurement groups · 9 results

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

Four-point probe bulk electrical conductivity

Electrical conductivity

Pressed Cu-THQ-BPY pellet series · Pellet

Pressed pellets from Cu-THQ-BPY powders with varied BPY feed ratios; approximately 5 mg powder under 1.5 tons; no binder or conducting additive; room temperature.

Temperature: 298
Geometry: Pressed pellet, four-point probe
Context: Pillared Cu-THQ-BPY feed-ratio series.
Measurement source: main p.4 · Results and Discussion · Figure 4a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Room-temperature conductivity, Cu-THQ-BPY 1:1	approximately 6 x 10-10 S cm-1 from Figure 4a	—	visual estimate from log-scale plot	Figure Axis Approximate	main p.4 · Results and Discussion · Figure 4a
Room-temperature conductivity, Cu-THQ-BPY 1:2	approximately 7 x 10-11 S cm-1 from Figure 4a	—	visual estimate from log-scale plot	Figure Axis Approximate	main p.4 · Results and Discussion · Figure 4a
Room-temperature conductivity, Cu-THQ-BPY 2:1	approximately 2.5 x 10-9 S cm-1 from Figure 4a	—	visual estimate from log-scale plot	Figure Axis Approximate	main p.4 · Results and Discussion · Figure 4a

Four-point probe bulk electrical conductivity

Electrical conductivity

Pressed Cu-THQ pellet for four-point conductivity · Pellet

Pressed pellet, approximately 5 mg powder under 1.5 tons; no binder or conducting additive; Keithley SCS-4200 parameter analyser at room temperature.

Temperature: 298
Geometry: Pressed pellet, four-point probe
Context: Pristine Cu-THQ control.
Measurement source: main p.4 · Results and Discussion · Figure 4a; Figure S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Room-temperature bulk conductivity, Cu-THQMarked as a best value within this paper	5.4 x 10-8 S cm-1	—	—	Text Exact Reported	main p.4 · Results and Discussion · Figure 4a

Four-point probe bulk electrical conductivity

Electrical conductivity

Physically mixed Cu-THQ and BPY powder · Powder

Physical mixture of Cu-THQ and equivalent BPY molecules tested to check whether BPY mixing alone changes conductivity.

Temperature: 298
Geometry: Pressed pellet inferred from conductivity method
Context: Physical mixture control.
Measurement source: main p.4 · Results and Discussion · Figure 4a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Room-temperature bulk conductivity, Cu-THQ/BPY physical mixtureMarked as a best value within this paper	2.2 x 10-8 S cm-1	—	—	Text Exact Reported	main p.4 · Results and Discussion · Figure 4a

Temperature-dependent four-point conductivity and Arrhenius fitting

Electrical conductivity

Pressed Cu-THQ-BPY pellet series · Pellet

Conductivity versus temperature fitted to sigma = sigma0 exp(-Ea/kBT); Figure 4b compares Cu-THQ and Cu-THQ-BPY.

Temperature: 293-373
Geometry: Pressed pellet, four-point probe
Context: Cu-THQ-BPY compared with pristine Cu-THQ.
Measurement source: main p.4 · Results and Discussion · Figure 4b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Arrhenius activation energy after BPY insertionMarked as a best value within this paper	0.29 eV	—	—	Text Exact Reported	main p.4 · Results and Discussion · Figure 4b
Arrhenius activation energy before BPY insertionMarked as a best value within this paper	0.17 eV	—	—	Text Exact Reported	main p.4 · Results and Discussion · Figure 4b
High-temperature activation energy, first fitted branch	around 0.63 eV in 333-373 K range	—	around	Text Approximate	main p.4 · Results and Discussion · Figure 4b
High-temperature activation energy, second fitted branch	around 0.78 eV in 333-373 K range	—	around	Text Approximate	main p.4 · Results and Discussion · Figure 4b