Browsing Center for Advanced Materials Research by Author "Park, H."
Now showing items 1-8 of 8
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Computational characterization of nitrogen-doped carbon nanotube functionalized by Fe adatom and Fe substituent for oxygen reduction reaction
Yoon S.H.; Yu C.; Han A.; Park H.; Elbashir N.; Han D.S.... more authors ... less authors ( Elsevier B.V. , 2019 , Article)Herein we investigated how Fe-coordinated, N-doped carbon nanotubes (CNT) enhance oxygen reduction reaction (ORR) activity by comparatively studying CNT with different pyridinic and graphitic nitrogen ratios, “Fe-CNT-PA” ... -
Computational density functional theory study on the selective conversion of CO2 to formate on homogeneously and heterogeneously mixed CuFeO2 and CuO surfaces
Yoon S.H.; Kang U.; Park H.; Abdel-Wahab A.; Han D.S. ( Elsevier B.V. , 2019 , Article)This study examines the reaction pathways for the selective conversion of CO2 to formate on the surface of mixed CuFeO2 and CuO (CFO) by employing density functional theory (DFT) calculation of the reaction energy and ... -
Efficient fouling control using outer-selective hollow fiber thin-film composite membranes for osmotic membrane bioreactor applications
Tran V.H.; Lim S.; Han D.S.; Pathak N.; Akther N.; Phuntsho S.; Park H.; Shon H.K.... more authors ... less authors ( Elsevier Ltd , 2019 , Article)This paper investigates the efficiency of fouling mitigation methods using a novel outer selective hollow fiber thin-film composite forward osmosis (OSHF TFC FO) membrane for osmosis membrane bioreactor (OMBR) system ... -
Electrocatalytic cogeneration of reactive oxygen species for synergistic water treatment
Yang S.Y.; Jeong H.W.; Kim B.-J.; Han D.S.; Choi W.; Park H.... more authors ... less authors ( Elsevier B.V. , 2019 , Article)This study examines the co-generation effect of hydroxyl radicals (OH) via water oxidation and H2O2 via O2 reduction in electrocatalytic processes with Sb-doped SnO2 (SS) anode and carbon nanotube (CNT) cathode pairs facing ... -
Exploring the photoelectrocatalytic behavior of free-standing TiO2 nanotube arrays on transparent conductive oxide electrodes: Irradiation direction vs. alignment direction
Jeong H.W.; Park K.J.; Park Y.; Han D.S.; Park H. ( Elsevier B.V. , 2019 , Article)Although one-dimensional TiO2 nanotube arrays (TNA) grown on Ti substrates via electrochemical anodization are extensively studied in photoelectrochemistry, the photo(electro)catalytic activity of TNA detached from the Ti ... -
High-Efficiency Solar Desalination Accompanying Electrocatalytic Conversions of Desalted Chloride and Captured Carbon Dioxide
Kim B.-J.; Piao G.; Kim S.; Yang S.Y.; Park Y.; Han D.S.; Shon H.K.; Hoffmann M.R.; Park H.... more authors ... less authors ( American Chemical Society , 2019 , Article)The sustainability of conventional water- and energy-associated systems is being examined in terms of water-energy nexus. This study presents a high-efficiency, off-grid solar desalination system for saline water (salinities ... -
Solar hydrogen peroxide production on carbon nanotubes wired to titania nanorod arrays catalyzing As(III) oxidation
Choi S.Y.; Kim S.; Lee K.J.; Kim J.Y.; Han D.S.; Park H.... more authors ... less authors ( Elsevier B.V. , 2019 , Article)We present an off-grid, standalone electrocatalytic H2O2 production reaction (HPR) using carbon nanotubes (CNT) wired to hydrogen-treated TiO2 nanorod (h-TNR) arrays catalyzing the oxidation of As(III) to As(V) under ... -
Synthesis of Aliphatic Acids from CO2 and Water at Efficiencies Close to the Photosynthesis Limit Using Mixed Copper and Iron Oxide Films
Kang U.; Yoon S.H.; Han D.S.; Park H. ( American Chemical Society , 2019 , Article)The photocatalytic conversion of CO2 and water into value-added chemicals remains a great challenge. This study shows that uniformly mixed copper and iron oxide (CuO/CuFeO2; CFO) bulky heterojunction films are capable of ...