journal article·2020-08-01Open access

Multi-modal surface analysis of porous films under operando conditions

Calley N. Eads, Jian-Qiang Zhong, Donghun Kim, Nusnin Akter, Zhihengyu Chen, Angela M. Norton, Veronica Lee, Jeffry A. Kelber, Michael Tsapatsis, J. Anibal Boscoboinik, Jerzy T. Sadowski, Percy Zahl, Xiao Tong, Dario J. Stacchiola, Ashley R. Head, Samuel A. Tenney

AIP Advances· Volume 10· Issue 8

Abstract

Practical catalysts with a porous framework, such as zeolites, host catalytic reactions at active sites engrained in the pores and channels of the scaffold. The mechanism of interaction at these active sites, defining catalyst performance, remains elusive, in large part, due to the lack of surface characterization methods available for thick films or powders. Here, we present thin film analogs of practical catalysts that allow for the implementation of surface characterization tools, including advanced microscopy and operando spectroscopy methodologies. Specifically, we investigated bilayer silica, MFI nanosheets, and UiO-66 thin films using a multi-modal approach addressing film growth, characterization, and gas adsorption aimed at understanding catalytic activity, reactivity, and selectivity properties, as defined by molecular-level changes in the reaction mechanism.
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Research context

OpenAlex topics: Catalytic Processes in Materials Science · Zeolite Catalysis and Synthesis · Mesoporous Materials and Catalysis

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

Affiliations

Center for Functional Nanomaterials, Brookhaven National Laboratory 1 , Upton, New York 11973, USA

Department of Chemical Engineering, University of Minnesota 2 , Minneapolis, Minnesota 55455, USA

School of Chemical Engineering, Chonnam National University 3 , Gwangju 61186, South Korea

Materials Science and Chemical Engineering Department, Stony Brook University 4 , Stony Brook, New York 11790, USA

Department of Chemistry, Stony Brook University 5 , Stony Brook, New York 11790, USA

Catalysis Center for Energy Innovation 6 , Newark, Delaware 19716, USA

Department of Chemical and Biomolecular Engineering, University of Delaware 7 , Newark, Delaware 19716, USA

Department of Chemistry, University of North Texas 8 , Denton, Texas 76203, USA

Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University 9 , Baltimore, Maryland 21218, USA

Funding

U.S. Department of Energy

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