The ReactorSTM: Atomically resolved scanning tunneling microscopy under high-pressure, high-temperature catalytic reaction conditions

C. T. Herbschleb; P. C. van der Tuijn; S. B. RoobolV. NavarroJ. W. BakkerQ. LiuD. StoltzM. E. Canas-VenturaG. VerdoesM. A. van SpronsenM. BergmanL. CramaI. TaminiauA. OfitserovG. J. C. van BaarleJ. W. M. Frenken

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The ReactorSTM: Atomically resolved scanning tunneling microscopy under high-pressure, high-temperature catalytic reaction conditions

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To enable atomic-scale observations of model catalysts under conditions approaching those used by the chemical industry, we have developed a second generation, high-pressure, high-temperature scanning tunneling microscope (STM): the ReactorSTM. It consists of a compact STM scanner, of which the tip extends into a 0.5 ml reactor flow-cell, that is housed in a ultra-high vacuum (UHV) system. The STM can be operated from UHV to 6 bars and from room temperature up to 600 K. A gas mixing and analysis system optimized for fast response times allows us to directly correlate the surface structure observed by STM with reactivity measurements from a mass spectrometer. The in situ STM experiments can be combined with ex situ UHV sample preparation and analysis techniques, including ion bombardment, thin film deposition, low-energy electron diffraction and x-ray photoelectron spectroscopy. The performance of the instrument is demonstrated by atomically resolved images of Au(111) and atom-row resolution on Pt(110), both under high-pressure and high-temperature conditions.

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《Review of Scientific Instruments》 |2014年第8期|083703-1-083703-10|共10页
作者
C. T. Herbschleb; P. C. van der Tuijn; S. B. RoobolV. NavarroJ. W. BakkerQ. LiuD. StoltzM. E. Canas-VenturaG. VerdoesM. A. van SpronsenM. BergmanL. CramaI. TaminiauA. OfitserovG. J. C. van BaarleJ. W. M. Frenken;
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ASM Europe BV, Versterkerstraat 8, 1322 AP Almere, The Netherlands;

Huygens-Kamerlingh Onnes Laboratory, Leiden University, P.O. box 9504, 2300 RA Leiden, The Netherlands;

Carbon-Biotechnology Ltd., Xiangyun Road No. 6, 203000 Wujin Jingfa district, Changzhou, Jiangsu, ChinaRoyal Institute of Technology (KTH), Electrum 229, Isafjordsgatan 22, 16440 Kista, SwedenEvonik Industries AG, Paul-Baumann-Strasse 1, 45772 Marl, GermanyChristaan van der Klaauw Astronomical Watches, Businesspark Friesland-West 47, 8447 SL Heerenveen, The NetherlandsInfinite Potential Laboratories, 485 Wes Graham Way, Ontario N2L 0A7, CanadaLeiden Probe Microscopy B. V, J.H. Oortweg 21, 2333 CH Leiden, The NetherlandsAdvanced Research Center for Nanolithography, P.O. Box 41883, 1009 DB Amsterdam, The Netherlands;

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The ReactorSTM: Atomically resolved scanning tunneling microscopy under high-pressure, high-temperature catalytic reaction conditions

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