Mobile sample holder applying multiple heating systems with a variable heating and cooling rate

Abstract

A mobile sample holder applying multiple heating systems with variable heating and cooling opportunities will be presented. Design details and initial results will be given. The whole sample holder system consists of two units: the docking station ͑one͒ on which the mobile sample holder together with its mobile sample plate ͑two͒ is mounted. Some of the significant advantages of this system in comparison with others are as follows. The docking station can be attached to the cold face of continuous flow cryostats or reservoir cryostats thus enabling cooling via, e.g., liquid nitrogen. The modular design of the sample holder allows it to be individually customized to fulfill specifically required heating methods ͑e.g., resistance heating, electron bombardment heating, direct heating, conductivity heating͒ for different sample materials ͑insulators, semiconductors, conductors͒. Furthermore, the variable setup allows for optimization with respect to cooling or heating properties as well as the incorporation of samples with different sizes and shapes. Even commercially available sample carrier systems can be combined with this sample holder design and still retain all heating and cooling features.

Photoconversion of 2-Propanol on Rutile Titania: A Combined Liquid-Phase and Surface Science Study

“…A schematic sketch of one of the setups is provided in Figure S1b in the Supporting Information. The setups are equipped with a home-built sample holder, , a liquid nitrogen-cooled manipulator (base temperature T = 100 K), an argon ion source, and a pinhole dosing system for organic compounds (IPA; Merck, ≥99.8% and ultrapure water 18.2 MΩ cm at 25 °C, TOC ≤ 5 ppb). The adsorption of 1 monolayer (ML) of water was realized by dosing water (1 × 10 –8 mbar via a backfilling for 2 min) at 205 K, which is slightly below the monolayer desorption temperature of water …”

Conversion of methanol on rutile TiO2 (110) and tungsten oxide clusters: 1. population of defect-dependent thermal reaction pathways

“…We have used a home-built sample holder, 39 which can be transferred in vacuo to a liquid nitrogen cooled stage, allowing experiments between 110 K and 900 K. The sample temperature was measured via a K-type thermocouple (CHAL-005, Omega Engineering, approx. error 0.75%) glued inside a tiny hole at the side of the sample (Ceramabond 569, Aremco).…”

Electron Transfer in Oxide–Oxide Cocatalysts: Interaction of Tungsten Oxide Clusters with Ti3+ States in Rutile TiO2

“…For the LEED and TPD experiments, a home-built sample holder and UHV system (base pressure <10 –10 mbar) was used, as described elsewhere. ,, Before use in TPD, MilliQ water was purified by several freeze–pump–thaw cycles. TPD spectra were recorded with a quadrupole mass spectrometer (Pfeiffer Vacuum Prisma TM QMA 200) using a heat ramp of 2 K/s.…”