Search Results - "Wark, Michael"

Perovskite-type LaFeO3: Photoelectrochemical Properties and Photocatalytic Degradation of Organic Pollutants Under Visible Light Irradiation by Mohammed Ismael, Michael Wark

“…Perovskite-type oxides lanthanum ferrite (LaFeO3) photocatalysts were successfully prepared by a facile and cost-effective sol-gel method using La(NO)3 and…”
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Low-temperature route to metal titanate perovskite nanoparticles for photocatalytic applications by Alammar, Tarek, Hamm, Ines, Wark, Michael, Mudring, Anja-Verena

“…•Sonochemical route successful for low-temperature synthesis of titanates.•Presence of ionic liquid supports formation of cubic phase under mild…”
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Minireview: Ni–Fe and Ni–Co Metal–Organic Frameworks for Electrocatalytic Water‐Splitting Reactions by Taffa, Dereje H., Balkenhohl, Danni, Amiri, Mandana, Wark, Michael

“…Electrolysis is one of the clean, environmentally friendly, and sustainable pathways to produce hydrogen for renewable energy storage. However, to make…”
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Morphology and Conductivity of Copper Hexacyanoferrate Films by Hosseini, Pouya, Wolkersdörfer, Konrad, Wark, Michael, Redel, Engelbert, Baumgart, Helmut, Wittstock, Gunther

“…Films of conductive coordination network compounds are interesting as functional materials for charge storage, electrocatalysis, electrochromic switching, or…”
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Comparative Analysis of Synthesis Routes for Antimony‐Doped Tin Oxide‐Supported Iridium and Iridium oxide Catalysts for OER in PEM Water Electrolysis by Gollasch, Marius, Schmeling, Jasmin, Harms, Corinna, Wark, Michael

“…This study investigates and compares four different deposition methods for an iridium‐based catalyst on antimony‐doped tin oxide support for oxygen evolution…”
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Semiconductive microporous hydrogen-bonded organophosphonic acid frameworks by Tholen, Patrik, Peeples, Craig A., Schaper, Raoul, Bayraktar, Ceyda, Erkal, Turan Selman, Ayhan, Mehmet Menaf, Çoşut, Bünyemin, Beckmann, Jens, Yazaydin, A. Ozgur, Wark, Michael, Hanna, Gabriel, Zorlu, Yunus, Yücesan, Gündoğ

“…Herein, we report a semiconductive, proton-conductive, microporous hydrogen-bonded organic framework (HOF) derived from phenylphosphonic acid and…”
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Gold Nanoparticles on Mesoporous Interparticle Networks of Titanium Dioxide Nanocrystals for Enhanced Photonic Efficiencies by Ismail, Adel A, Bahnemann, Detlef W, Bannat, Inga, Wark, Michael

“…Nanocomposites consisting of Au and TiO2 nanocrystals have been synthesized through simple one-step sol−gel reactions of titanium tetraisopropoxide with…”
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Palladium Doped Porous Titania Photocatalysts: Impact of Mesoporous Order and Crystallinity by Ismail, Adel A, Bahnemann, Detlef W, Robben, Lars, Yarovyi, Viktor, Wark, Michael

“…Herein, we report a facile synthesis method for highly ordered hexagonal P6m mesoporous palladium doped titania nanoarchitectures using the F127 triblock…”
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Scale-Up of the Electrodeposition of ZnO/Eosin Y Hybrid Thin Films for the Fabrication of Flexible Dye-Sensitized Solar Cell Modules by Bittner, Florian, Oekermann, Torsten, Wark, Michael

“…The low-temperature fabrication of flexible ZnO photo-anodes for dye-sensitized solar cells (DSSCs) by templated electrochemical deposition of films was…”
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Synthesis of Phase Pure Hexagonal YFeO3 Perovskite as Efficient Visible Light Active Photocatalyst by Mohammed Ismael, Engy Elhaddad, Dereje H. Taffa, Michael Wark

“…Hexagonal perovskite YFeO3 was synthesized by a complex-assisted sol-gel technique allowing crystallization at calcination temperatures below 700 °C. As…”
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The stability of carbon from a maize-derived hydrochar as a function of fractionation and hydrothermal carbonization temperature in a Podzol by de Jager, Megan, Schröter, Frank, Wark, Michael, Giani, Luise

“…Hydrochar (HC) produced by the hydrothermal carbonization (HTC) of typically wet biomass is generally considered to be less effective for carbon (C)…”
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Discovery of Polyoxo-Noble-Metalate-Based Metal–Organic Frameworks by Bhattacharya, Saurav, Ayass, Wassim W, Taffa, Dereje H, Schneemann, Andreas, Semrau, A. Lisa, Wannapaiboon, Suttipong, Altmann, Philipp J, Pöthig, Alexander, Nisar, Talha, Balster, Torsten, Burtch, Nicholas C, Wagner, Veit, Fischer, Roland A, Wark, Michael, Kortz, Ulrich

“…Here we report on the synthesis, structure, and characterization of the first example of a poly­oxo­palladate (POP)-based metal-organic framework (MOF). This…”
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Hydrothermal carbonization of biomass from landscape management – Influence of process parameters on soil properties of hydrochars by Röhrdanz, Michael, Rebling, Tammo, Ohlert, Jan, Jasper, Jan, Greve, Thomas, Buchwald, Rainer, von Frieling, Petra, Wark, Michael

“…Besides pyrolysis the technology of hydrothermal carbonization (HTC) is tested to produce hydrochars for soil improvement. The chemical and physical properties…”
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Relevant Properties of Carbon Support Materials in Successful Fe-N-C Synthesis for the Oxygen Reduction Reaction: Study of Carbon Blacks and Biomass-Based Carbons by Hülstede, Julia, Schonvogel, Dana, Schmies, Henrike, Wagner, Peter, Schröter, Frank, Dyck, Alexander, Wark, Michael

“…Fe-N-C materials are promising non-precious metal catalysts for the oxygen reduction reaction in fuel cells and batteries. However, during the synthesis of…”
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Cr2O3 Nanoparticles on Ba5Ta4O15 as a Noble-Metal-Free Oxygen Evolution Co-Catalyst for Photocatalytic Overall Water Splitting by Soldat, Julia, Busser, G. Wilma, Muhler, Martin, Wark, Michael

“…The (1 1 1)‐layered perovskite material Ba5Ta4O15 represents a suitable photoabsorber with remarkable photocatalytic activity in overall water splitting. We…”
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Enhanced Breaking of Lignin and Mesopore Formation in Zinc Chloride Assisted Hydrothermal Carbonization of Waste Biomasses by Multhaupt, Hendrik, Bottke, Patrick, Wark, Michael

“…Hydrochars from hydrothermal carbonization of different biowaste materials (dried dandelion, sawdust, coconut shell powder) formed in the presence of aqueous…”
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Research Update: Photoelectrochemical water splitting and photocatalytic hydrogen production using ferrites (MFe2O4) under visible light irradiation by Dillert, Ralf, Taffa, Dereje H., Wark, Michael, Bredow, Thomas, Bahnemann, Detlef W.

“…The utilization of solar light for the photoelectrochemical and photocatalytic production of molecular hydrogen from water is a scientific and technical…”
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Electrodeposition of zinc oxide on transparent conducting metal oxide nanofibers and its performance in dye sensitized solar cells by Dunkel, Christian, Wark, Michael, Oekermann, Torsten, Ostermann, Rainer, Smarsly, Bernd M.

“…[Display omitted] ► Nanofibers of transparent conducting oxides (TCO) were prepared by electrospinning. ► They were modified by electrodeposited ZnO and tested…”
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Elucidating Synergistic Effects of Different Metal Ratios in Bimetallic Fe/Co-N-C Catalysts for Oxygen Reduction Reaction by Marius Gollasch, Julia Müller-Hülstede, Henrike Schmies, Dana Schonvogel, Peter Wagner, Alexander Dyck, Michael Wark

“…Lowering or eliminating the noble-metal content in oxygen reduction fuel cell catalysts could propel the large-scale introduction of commercial fuel cell…”
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How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts? by Henrike Schmies, Nina Bengen, Julia Müller-Hülstede, Olayinka Ahmed Ibitowa, Peter Wagner, Michael Wark

“…Catalysts for the oxygen reduction reaction (ORR) in PEM fuel cells are commonly constituted of Pt-based nanoparticles and a carbon support originating from…”
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