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The abundant surface chemical information and edge structures of carbon materials have attracted tremendous interest in catalysis. For the oxygen evolution reaction (OER), edge effects of carbon materials have been rarely studied in detail due to the complexity of various coexisting edge configurations and the controversy between carbon corrosion and carbon catalysis. In the present work, the exact roles of common carbon active edge sites in OER using polycyclic aromatic hydrocarbons (PAHs) with designated configurations (zigzag and armchair) as model probe molecules were interrogated with the focus on structure-function relationships. Zigzag configurations of PAHs were determined to show high activity for OER while also showing a remarkable stability at a reasonable potential. It performs with a TOF value of 0.276 s-1 in 0.1 M KOH. The catalytic activity of carbon edge sites could be further effectively regulated by extending their π conjugation structure at a molecular level.
This article was published in the following journal.
Name: Angewandte Chemie (International ed. in English)
Fe-doped transition metal (oxy)hydroxides have been regarded as the most efficient oxygen evolution reaction (OER) electrocatalysts in alkaline condition. The incorporation of Fe effectively enhances ...
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The interdisciplinary science that studies evolutionary biology, including the origin and evolution of the major elements required for life, their processing in the interstellar medium and in protostellar systems. This field also includes the study of chemical evolution and the subsequent interactions between evolving biota and planetary evolution as well as the field of biology that deals with the study of extraterrestrial life.
Evolution at the molecular level of DNA sequences and proteins. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)
The techniques used to produce molecules exhibiting properties that conform to the demands of the experimenter. These techniques combine methods of generating structural changes with methods of selection. They are also used to examine proposed mechanisms of evolution under in vitro selection conditions.
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
The process of accumulation of genetic and epigenetic changes over time in individual cells and the effect of the changes on CELL PROLIFERATION.