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journal article·2021-10Open access

Xenon Trapping in Metal‐Supported Silica Nanocages

Yixin Xu, Matheus Dorneles de Mello, Chen Zhou, Shruti Sharma, Burcu Karagoz, Ashley R. Head, Zubin Darbari, Iradwikanari Waluyo, Adrian Hunt, Dario J. Stacchiola, Sergio Manzi, Alejandro M. Boscoboinik, Victor D. Pereyra, J. Anibal Boscoboinik

Small· Volume 17· Issue 39
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Abstract

Abstract Xenon (Xe) is a valuable and scarce noble gas used in various applications, including lighting, electronics, and anesthetics, among many others. It is also a volatile byproduct of the nuclear fission of uranium. A novel material architecture consisting of silicate nanocages in contact with a metal surface and an approach for trapping single Xe atoms in these cages is presented. The trapping is done at low Xe pressures and temperatures between 400 and 600 K, and the process is monitored in situ using synchrotron‐based ambient pressure X‐ray photoelectron spectroscopy. Release of the Xe from the cages occurs only when heating to temperatures above 750 K. A model that explains the experimental trapping kinetics is proposed and tested using Monte Carlo methods. Density functional theory calculations show activation energies for Xe exiting the cages consistent with experiments. This work can have significant implications in various fields, including Xe production, nuclear power, nuclear waste remediation, and nonproliferation of nuclear weapons. The results are also expected to apply to argon, krypton, and radon, opening an even more comprehensive range of applications.
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Research context

Nanomaterials

OpenAlex topics: Nuclear Physics and Applications · Atomic and Subatomic Physics Research · Quantum, superfluid, helium dynamics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Materials Science and Chemical Engineering Department State University of New York at Stony Brook 100 Nicolls Rd Stony Brook NY 11794 USA

Center for Functional Nanomaterials Brookhaven National Laboratory 735 Brookhaven Ave Upton NY 11973 USA

Catalysis Center for Energy Innovation University of Delaware Newark DE 19716 USA

Advanced Energy Research and Technology Center State University of New York at Stony Brook 1000 Innovation Road Stony Brook NY 11794 USA

National Synchrotron Light Source II Brookhaven National Laboratory 743 Brookhaven Avenue Upton NY 11967 USA

Departamento de Física Instituto de Física Aplicada (INFAP) – CONICET Universidad Nacional de San Luis Chacabuco 917 San Luis 5700 Argentina

Department of Mechanical Engineering and Applied Mechanics University of Pennsylvania Philadelphia PA 19104 USA

Departamento de Física Instituto de Matemática Aplicada (IMASL) – CONICET Universidad Nacional de San Luis Chacabuco 917 San Luis 5700 Argentina

Funding

Brookhaven National Laboratory · U.S. Department of Energy · Basic Energy Sciences · Office of Science · American Chemical Society Petroleum Research Fund

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