Gas Reactivity

The Gas Reactivity laboratory is designed for the study of the reactivity and adsorption of a variety of gases into liquids or solids materials employing volumetric as well as gravimetric techniques and over a wide range of pressures and temperatures. This laboratory also includes equipment for the preparation of new materials for absorption of gases by sputtering in UHV and several potentiostats for electrochemical studies.



Assigned personnel


Joaquim Torres
Technical Lead


Related research lines



Materials for Energy

CO2 utilization

Available equipment

Equipment Description Features Main Applications  
AMEL 7060

Voltage range: ±10 V
Maximum voltage resolution: 0.4 mV Current range: ±10 A (±12 A peak) Current resolution: 4 nA
Accuracy ±(0.2% +0.1% F.S.)
IR compensation
Power consumption: 400 VA
Size: 420 x 440 x 250 mm
Weight: 25 kg

Batteries, fuel cells and other energy-related studies
Preparative electrolysis Generation of gases
Electrochemical testing of materials



Maximum current: 2 A
Current booster up to 20 A
Voltage compliance: 100 V
Current resolution: 1.2 fA
Minimum input impedance: 1013 Ohms Maximum capacitance: 5 pF Impedance range: 10 μHz to 1 MHz

Liquid/solid electrochemical
Electrochemical synthesis
Cyclic and square wave Voltammetry
Multi-step experiments
Surface imaging and modification, when coupled to quartz microbalance Fuel cells and batteries.


UHV Sputtering system

4 off-axis 2” magnetron sources:
3 DC generators 500 W
1 pulsed DC generator
2 thermal evaporation sources
Two independent 4” substrate holders: Combinatorial synthesis.
Single substrates up to 800 ºC.
Vacuum 5x10-8 Torr Load-lock for sample transfer Inert and reactive gases (O2, H2)
Computer control.

Growth of thin films and multilayers of metallic elements.
Combinatorial study of libraries by using compositional gradients or by using suitable masks.
High quality thin films.
Films suited for aerospace, hydrogen storage, semiconductors / microelectronics, Magnetic Storage Media.


AccuPyc 1340 Pycnometer

Temperature: Stable between 15C -35C
Humidity: 20 to 80% relative (non-condensing. Voltage: 90 to 264 VAC
Power: 30 VA

Frequency: 50 to 60 Hz
Gases: helium (dew point of -67C). Other dry gases such as carbon dioxide, dry air, nitrogen and argon can also beu sed. A multigas option is available.
Accuracy: Accurate to within 0.03% of reading, plus 0.03% of sample capacity.
Temperature control.
Sample chamber:
1cm3 chamber
10 cm3 chamber
100 cm3 chamber
350 cm3 chamber

Determine density measurements for metal oxides, refractories, carbon black, activated charcoal, amorphous silica, metal powders, ceramics, graphites, cokes, catalysts, etc.



Two independent vacuum systems
Two-station intelligent degas system
Intuitive and powerful software
Six analysis gas inlets (N2, He, H2, CO, O2, and Ar) 1000 mmHg transducer
HighVac (high vacuum, adds 10-mmHg transducer) Micropore evaluation
Enhanced chemical resistance
Water vapor option.

Medical implants and pharmaceuticals Ceramics
Activated carbons Paints and coatings Electronics Nanotubes.


Swing Sorption Reactors

Max pressure: 30 bar Temperature range: Adsorption mode: 25 to 750C Absorption mode: 25 to 150C

Sorption feed flows:
Carbon Dioxide: 20 Nl/min
Nitrogen: 20 Nl/min
Steam: 10 Nl/min

Desorption feed flows:
Nitrogen: 20 Nl/min
Steam: 10 Nl/min

Volume: 1400 ml
Height: 750 mm
Internal diameter: 43 mm
Maximum steam content: 65 % @ 30 bars, 100 % @ 20 bars.

Pressure Swing Adsorption.
Vacuum Swing Adsorption.
Temperature Swing Adsorption.
Ab/adsorption process
Development of gas clean-up materials.


Small Microbalance Max pressure: 30 bar
Temperature range: 5C to 450C Weight:
Range: 0 – 25 g
Resolution: +/- 0.01 mg
Repeatability: +/- 0.04 mg
Gases Flows:
Carbon Dioxide: 2 Nl/min
Nitrogen: 2 Nl/min
Steam: 10 Nl/min
Gases can be easily changed to Methane, Hydrogen, Carbon monoxide, Helium and Argon. Volumes:
Sample vessel 500 ml
Knockout pot 300 ml

Compact microbalance system for TG measures and sorption properties under a medium range of conditions.
Based on a magnetically coupled Rubotherm microbalance, it has the ability to carry out thermogravimetric cycles and measurements, using two lines of gas with the possibility to use another line of steam.
Thermo gravimetric studies
Cycling adsorption / desorption
Cycling adsorption / regeneration
Heat treatment under pressure
Characterization of sorption capacity.


IMS – HP HT Microbalance Standard cell:
Max pressure:
125 bar (H2);
85 bar (Others gases)
Temperature range: 5C to 500C
High temperature cell:
Maximum pressure: 35 bar
Maximum temperature: 850C
Repeatability: +/- 2 μg
Argon, Carbon Dioxide, Helium, Methane, Steam
On line mass spectrometer

Unique integrated microbalance system for TG measures and sorption properties under a broad range of conditions.
Based on a magnetically coupled Rubotherm microbalance, it has the ability to carry out thermo gravimetric measurements using a variety of gas mixes with the possibility to know the gas composition with a Mass spectrometer.

Thermo gravimetric studies Cycling adsorption/desorption Cycling adsorption/regeneration
Heat treatment under pressure
Corrosion measurements.


TGA Q5000 IR Temperature controlled thermobalance
Dynamic Range: 100 mg
Weighing Accuracy: +/-0.1%
Weighing Precision: +/-0.01%Sensitivity: < 0.1 μg Signal Resolution: 0.01 μg
Temperature Range: Ambient to 1200 °C Isothermal Temp Accuracy: +/-1 °C
Linear Heating Rate (°C/min): 0.1 to 500
Furnace Cooling (Forced air / N2): 1200 to 35 °C < 10 min
Autosampler –25 sample Vacuum: 10-2torr Sample Pans
• Platinum 50, 100 μL
• Platinum-HT, 100 μL
• Ceramic 100, 250 μL
• Aluminum 80 μL
• Aluminum Sealed Pan 20 μL.

Thermogravimetric Analysis allows measuring the amount and rate of change in the weight of a material as a function of temperature or time in a controlled atmosphere.
The Q5000IR TGA integrates the thermobalance, with an infrared furnace, and a proven horizontal purge gas system.

Thermal stability. Decomposition kinetics Composition. Estimated lifetime Oxidative stability.
Moisture and volatile contents.


GC6890N Gas chromatograph Channels: 2 Split/splitless: per channel
Detector: FID per channel
Online gas sampling Online liquid sampling
Gas analysis
Micropoluntant analysis
Online analysis