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Title: Nano-array based monolithic catalysts: Concept, rational materials design and tunable catalytic performance

Monolithic catalysts, also known as structured catalysts, represent an important catalyst configuration widely used in automotive, chemical, and energy industries. However, several issues associated with washcoat based monolithic catalyst preparation are ever present, such as compromised materials utilization efficiency due to a less-than-ideal wash coating process, difficulty in precise and optimum microstructure control and lack of structure-property correlation. Here, in this mini-review, we introduce the concept of nano-array catalyst, a new type of monolithic catalyst featuring high catalyst utilization efficiency, good thermal/mechanical robustness, and catalytic performance tunability. A comprehensive overview is presented with detailed discussion of the strategies for nano-array catalyst preparation and rational catalytic activity adjustment enabled by the well-defined nano-array geometry. Specifically their scalable fabrication processes are reviewed in conjunction with discussion of their various catalytic oxidation reaction performances at low temperature. Finally, we hope this review will serve as a timely and useful research guide for rational design and utilization of the new type of monolithic catalysts.
Authors:
 [1] ;  [1] ;  [1]
  1. Univ. of Connecticut, Storrs, CT (United States). Department of Materials Science and Engineering & Institute of Materials Science
Publication Date:
Grant/Contract Number:
EE0006854
Type:
Accepted Manuscript
Journal Name:
Catalysis Today
Additional Journal Information:
Journal Volume: 258; Journal Issue: P2; Journal ID: ISSN 0920-5861
Publisher:
Elsevier
Research Org:
Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Monolithic catalyst; Nano-arrays; Rational materials design; Scalable synthesis; Structure–property relations; Low temperature oxidation
OSTI Identifier:
1430251
Alternate Identifier(s):
OSTI ID: 1257866