HTP1-S Thermal Desorption Analyser

Product Overview

The HTP1-S thermal desorption analyser is specifically designed to offer high accuracy hydrogen desorption measurements on a range of potential hydrogen storage materials. The instrument can be operated in both an isothermal static uptake measurement mode or a flowing, temperature-programmed desorption (TPD) mode for total hydrogen content determination.

The system can hydrogenate samples at pressures and temperatures of up to 200 bar and 773K, and apply highly controlled linear thermal ramps in the range 103 to 773K. Desorption is performed into a helium carrier gas stream and detected with a quadrupole mass spectrometer (QMS). The system design incorporates a low volume gas pathway and heated quartz capillary sampling system, for a rapid response time and a maximum signal intensity. A subsequent calibration run is performed using a flow of calibrant gas mixture, giving an accurate total capacity value, together with characteristic desorption temperatures.

Product Features

Versatile thermal desorption analyser, with full high pressure volumetric sorption measurement capabilities, and coupled mass spectrometry
High vacuum oil-free sample degassing capability, for microporous material studies
Automated isotherm acquisition with integrated self-calibration for PCI and PCT studies
Real-time analysis of pressure relaxation kinetics
Programmable sequences for pre-treatment, activation and cycling stability studies
Full thermostatted enclosure for thermal stability and user protection
Microbore custom-designed components for ultra-low dead volume and minimal permeation errors
Isothermal and linear thermal ramp control from 103K to 773K, with both low and high temperature options available
Pressures from High Vacuum to 200 Bar, with Sievert’s Method, set-point regulation and linear ramp control
Auxiliary gas inputs with mass flow control for calibration and surface area/pore volume analysis

Figure 1. A hydrogen temperature-programmed desorption (TPD) spectrum from a 3mg Pd sample, measured using the HTP1-S analyser, demonstrating both the high sensitivity to low desorbed hydrogen quantities and the outstanding linear ramping capabilities of the instrument.

Product Applications

Evolved gas analysis (EGA)
Isotherm determination
Kinetic measurements
Temperature-programmed desorption (TPD)
Carbons
Hydrides
Hydrogen storage
Zeolites

Please use our enquiry form to request further information about the HTP1-S.

< Prev		Next >