D
Donna A. Chen
Researcher at University of South Carolina
Publications - 74
Citations - 2213
Donna A. Chen is an academic researcher from University of South Carolina. The author has contributed to research in topics: Catalysis & Bimetallic strip. The author has an hindex of 28, co-authored 72 publications receiving 1973 citations. Previous affiliations of Donna A. Chen include Harvard University & Stanford University.
Papers
More filters
Journal ArticleDOI
Electronic Properties of Bimetallic Metal-Organic Frameworks (MOFs): Tailoring the Density of Electronic States through MOF Modularity.
Ekaterina A. Dolgopolova,Amy J. Brandt,Otega A. Ejegbavwo,Audrey S. Duke,Thathsara D. Maddumapatabandi,Randima P. Galhenage,Bryon W. Larson,Obadiah G. Reid,Obadiah G. Reid,Salai Cheettu Ammal,Andreas Heyden,Mvs Chandrashekhar,Vitalie Stavila,Donna A. Chen,Natalia B. Shustova +14 more
TL;DR: These studies unveil the possible pathways for transforming the electronic properties of MOFs from insulating to semiconducting, as well as provide a blueprint for the development of hybrid porous materials with desirable electronic structures.
Journal ArticleDOI
Studies on Co-based catalysts supported on modified carbon substrates for PEMFC cathodes
Nalini P. Subramanian,Swaminatha P. Kumaraguru,Héctor R. Colón-Mercado,Hansung Kim,Branko N. Popov,Timothy Black,Donna A. Chen +6 more
TL;DR: In this paper, a cobalt-ethylene diamine complex on carbon was used for four-electron reduction of molecular oxygen, and the Quinone groups introduced by nitric acid treatment, in addition to increasing the dispersion of the chelate complexes, played a role in forming the active site for oxygen reduction.
Journal ArticleDOI
Bimetallic Pt−Au Clusters on TiO2(110): Growth, Surface Composition, and Metal−Support Interactions
TL;DR: Au, Pt, and Au−Pt clusters were grown on TiO2(110) at room temperature and studied by scanning tunneling microscopy as mentioned in this paper, showing that the deposition of pure Pt produces smaller cluster sizes.
Journal ArticleDOI
Understanding the Nucleation and Growth of Metals on TiO2: Co compared to Au, Ni and Pt
Randima P. Galhenage,Hui Yan,Samuel A. Tenney,Nayoung Park,Graeme Henkelman,Peter M Albrecht,David R. Mullins,Donna A. Chen +7 more
TL;DR: The nucleation and growth of Co clusters on vacuum-annealed (reduced) and oxidized TiO2(110) have been studied by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and de...
Journal ArticleDOI
Active Sites in Copper-Based Metal–Organic Frameworks: Understanding Substrate Dynamics, Redox Processes, and Valence-Band Structure
Audrey S. Duke,Ekaterina A. Dolgopolova,Randima P. Galhenage,Salai Cheettu Ammal,Andreas Heyden,Mark D. Smith,Donna A. Chen,Natalia B. Shustova +7 more
TL;DR: In this paper, an integrated approach that combines synthesis, X-ray photoelectron spectroscopy (XPS) studies, and theoretical calculations for the investigation of active unsaturated metal sites (UMS) in copper-based metal-organic frameworks (MOFs) was developed.