Direct Formation of 2D-MnOx under Conditions of Water Oxidation Catalysis
Source abstract
Abstract
We describe the synthesis and characterization of a novel 2D-MnOx material using a combination of HR-TEM, XAS, XRD, and reactivity measurements. The ease with which the 2D material can be made and the conditions under which it can be made implies that water oxidation catalysts previously described as “birnessite-like” (3D) may be better thought of as 2D materials with very limited layer stacking. The distinction between the materials as being “birnessite-like” and “2D” is important because it impacts on our understanding of the function of these materials in the environment and as catalysts. The 2D-MnOx material is noted to be a substantially stronger chemical oxidant than previously noted for other birnessite-like manganese oxides. The material is shown to both “directly” and “catalytically” oxidize water in the presence of Ce4+, and to directly oxidize H2O2 in the absence of any other oxidant.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Gas Sensing Nanomaterials and Sensors · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, Melbourne, Victoria 3122, Australia
College of Science, Technology, and Engineering, James Cook University, Townsville, Queensland 4811, Australia
University of Baghdad, College of Education for Pure Science—Ibn Al-Haitham, 10071 Baghdad, Iraq
Australian Synchrotron, ANSTO, 800 Blackburn Road Clayton, Victoria 3168, Australia
Department of Physics, Arizona State University, Tempe, Arizona 85287, United States
LeRoy Eyring Centre for Solid State Science, Arizona State University, Tempe, Arizona 85287, United States
Funding
James Cook University · Swinburne University of Technology
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