Thermoelectric — A Microporous and Naturally Nanostructured Thermoelectric Metal-Organic Framework with Ultralow Thermal Conductivity

4 measurement groups · 22 results

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

Steady-state Seebeck coefficient measurement

Seebeck and thermopower measurements

pressed pellet of Ni3(HITP)2 · Pellet

6 mm diameter, 1.8 mm thick pellet sandwiched between hot junction heater assembly and cold junction electrode; silver paste contacts; desolvated at 150 C for 2 h; thermal voltage slope versus temperature difference from multiple input heater powers.

Temperature: 298.15-318.15
Atmosphere: vacuum below 10^-4 mbar
Geometry: sandwiched pellet between hot and cold junctions
Context: pristine Ni3(HITP)2 pressed pellet
Measurement source: p009 / article p.175 · Experimental Procedures · Figure 2B

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Seebeck coefficient at 25 C	-11.9 uV K^-1 at 25 C	-0.0000119 V K^-1	error bar shown, not digitised	Text Exact Reported	p005-p006 / article pp.171-172 · Results · Figure 2B
Seebeck coefficient at 30 C	approximately -11.92 uV K^-1 at 30 C from Figure 2B	-0.00001192 V K^-1	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2B
Seebeck coefficient at 35 C	approximately -11.90 uV K^-1 at 35 C from Figure 2B	-0.0000119 V K^-1	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2B
Seebeck coefficient at 40 C	approximately -11.95 uV K^-1 at 40 C from Figure 2B	-0.00001195 V K^-1	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2B
Seebeck coefficient at 45 C	approximately -11.90 uV K^-1 at 45 C from Figure 2B	-0.0000119 V K^-1	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2B

Steady-state thermal conductivity measurement

Thermal transport measurements

pressed pellet of Ni3(HITP)2 · Pellet

Same steady-state assembly as Seebeck measurement; thermal conductivity extracted from slope of power-versus-temperature curves; values averaged over multiple sweeps.

Temperature: 298.15-318.15
Atmosphere: vacuum below 10^-4 mbar
Geometry: sandwiched pellet between hot and cold junctions
Context: pristine Ni3(HITP)2 pressed pellet
Measurement source: p009-p010 / article pp.175-176 · Experimental Procedures · Figure 2C

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Electronic contribution to thermal conductivity at 25 C	k_e = 4.28 x 10^-3 W m^-1 K^-1	—	—	Text Exact Reported	p006 / article p.172 · Discussion
Thermal conductivity at 25 CMarked as a best value within this paper	kappa = 0.21 W m^-1 K^-1	—	error bar shown, not digitised	Text Exact Reported	p006 / article p.172 · Results · Figure 2C
Thermal conductivity at 30 C	approximately 0.21 W m^-1 K^-1 at 30 C from Figure 2C	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2C
Thermal conductivity at 35 C	approximately 0.215 W m^-1 K^-1 at 35 C from Figure 2C	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2C
Thermal conductivity at 40 C	approximately 0.213 W m^-1 K^-1 at 40 C from Figure 2C	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2C
Thermal conductivity at 45 C	approximately 0.21 W m^-1 K^-1 at 45 C from Figure 2C	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2C

Tentative Seebeck coefficient measurement

Seebeck and thermopower measurements

tentative thin films of Ni3(HITP)2 · Thin Film

Thin film measurement mentioned in discussion; method details not reported.

Temperature: 298.15
Geometry: thin film
Context: pristine Ni3(HITP)2 thin film
Measurement source: p007 / article p.173 · Discussion

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Tentative thin-film Seebeck coefficient at 25 C	approximately -50 uV K^-1 at 25 C	-0.00005 V K^-1	—	Text Approximate	p007 / article p.173 · Discussion

Calculated thermoelectric power factor and dimensionless figure of merit ZT from measured sigma, S, kappa, and T

pressed pellet of Ni3(HITP)2 · Pellet

Calculated for pellets over 25-45 C using electrical conductivity, Seebeck coefficient, and thermal conductivity measured under vacuum.

Temperature: 298.15-318.15
Atmosphere: vacuum
Geometry: pressed pellet
Context: pristine Ni3(HITP)2 pressed pellet
Measurement source: p006 / article p.172 · Results · Figure 2D; Figure S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power factor at 25 C	8.31 x 10^-3 uW cm^-1 K^-2 at 25 C	0.000831 W m^-1 K^-2	error bar shown in Figure S5, not digitised	Text Exact Reported	p005-p006 / article pp.171-172 · Results · Figure S5
Power factor at 30 C	approximately 8.47 x 10^-3 uW cm^-1 K^-2 at 30 C from Figure S5	0.000847 W m^-1 K^-2	error bar shown, not digitised	Figure Axis Approximate	SI p007 · Figure S5 · Figure S5
Power factor at 35 C	approximately 8.58 x 10^-3 uW cm^-1 K^-2 at 35 C from Figure S5	0.000858 W m^-1 K^-2	error bar shown, not digitised	Figure Axis Approximate	SI p007 · Figure S5 · Figure S5
Power factor at 40 C	approximately 8.74 x 10^-3 uW cm^-1 K^-2 at 40 C from Figure S5	0.000874 W m^-1 K^-2	error bar shown, not digitised	Figure Axis Approximate	SI p007 · Figure S5 · Figure S5
Power factor at 45 CMarked as a best value within this paper	8.80 x 10^-3 uW cm^-1 K^-2 at 45 C	0.00088 W m^-1 K^-2	error bar shown in Figure S5, not digitised	Text Exact Reported	p006 / article p.172 · Results · Figure S5
Thermoelectric figure of merit ZT at 25 C	1.19 x 10^-3 at 25 C	—	error bar shown, not digitised	Text Exact Reported	p006 / article p.172 · Results · Figure 2D
Thermoelectric figure of merit ZT at 30 C	approximately 1.21 x 10^-3 at 30 C from Figure 2D	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2D
Thermoelectric figure of merit ZT at 35 C	approximately 1.22 x 10^-3 at 35 C from Figure 2D	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2D
Thermoelectric figure of merit ZT at 40 C	approximately 1.27 x 10^-3 at 40 C from Figure 2D	—	error bar shown, not digitised	Figure Axis Approximate	p005 / article p.171 · Results · Figure 2D
Thermoelectric figure of merit ZT at 45 CMarked as a best value within this paper	1.34 x 10^-3 at 45 C	—	error bar shown, not digitised	Text Exact Reported	p006 / article p.172 · Results · Figure 2D