P
Peter B. O’Mara
Researcher at University of New South Wales
Publications - 11
Citations - 293
Peter B. O’Mara is an academic researcher from University of New South Wales. The author has contributed to research in topics: Catalysis & Chemistry. The author has an hindex of 5, co-authored 8 publications receiving 86 citations.
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Journal ArticleDOI
Cascade Reactions in Nanozymes: Spatially Separated Active Sites inside Ag-Core-Porous-Cu-Shell Nanoparticles for Multistep Carbon Dioxide Reduction to Higher Organic Molecules.
Peter B. O’Mara,Patrick Wilde,Tania M. Benedetti,Corina Andronescu,Soshan Cheong,J. Justin Gooding,Richard D. Tilley,Wolfgang Schuhmann +7 more
TL;DR: This work mimics this feature in a generalized approach with an electrocatalytic nanoparticle for the carbon dioxide reduction reaction comprising a Ag core surrounded by a porous Cu shell, providing different active sites in nanoconfined volumes.
Journal ArticleDOI
A single-Pt-atom-on-Ru-nanoparticle electrocatalyst for CO-resilient methanol oxidation
Agus R. Poerwoprajitno,Lucy Gloag,John Watt,Soshan Cheong,Xin Tan,H. Lei,Hassan A. Tahini,Aaron Henson,Bijil Subhash,Nicholas M. Bedford,Benjamin K. Miller,Peter B. O’Mara,Tania M. Benedetti,D. L. Huber,Wenhua Zhang,Sean C. Smith,J. Justin Gooding,Wolfgang Schuhmann,Richard D. Tilley +18 more
TL;DR: In this article , the authors demonstrate a process that grows and spreads Pt islands on Ru branched nanoparticles to create single-Pt-atom-on-Ru catalysts.
Journal ArticleDOI
Role of the Secondary Metal in Ordered and Disordered Pt–M Intermetallic Nanoparticles: An Example of Pt3Sn Nanocubes for the Electrocatalytic Methanol Oxidation
Hsiang-Sheng Chen,Tania M. Benedetti,Jiaxin Lian,Soshan Cheong,Peter B. O’Mara,Kazeem O. Sulaiman,Cameron H. W. Kelly,Robert W. J. Scott,J. Justin Gooding,Richard D. Tilley +9 more
TL;DR: In this paper, the effect of different arrangements of surface atoms on alloy catalysts with different degrees of ordering has been investigated, and it is important to maintain surface facets to understand the effect.
Journal ArticleDOI
Is Cu instability during the CO2 reduction reaction governed by the applied potential or the local CO concentration
Patrick Wilde,Peter B. O’Mara,João R. C. Junqueira,Tsvetan Tarnev,Tania M. Benedetti,Corina Andronescu,Yen-Ting Chen,Richard D. Tilley,Wolfgang Schuhmann,J. Justin Gooding +9 more
TL;DR: It is unequivocally confirmed that the local CO concentration is the main source for the Cu instability and product quantification during CO2RR reveals an inherent trade-off between stability, selectivity and activity in both systems.
Journal ArticleDOI
Protease sensing using nontoxic silicon quantum dots.
Xiaoyu Cheng,Benjamin F. P. McVey,Andrew B. Robinson,Guillaume Longatte,Peter B. O’Mara,Vincent T. G. Tan,Pall Thordarson,Richard D. Tilley,Katharina Gaus,J. Justin Gooding +9 more
TL;DR: The combination of interfacial design and optical imaging presented in this work opens opportunities for use of nontoxic SiQDs relevant to intracellular sensing and imaging.