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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 21 to 30 of 37 (0.027 seconds)Spelling suggestions: "subject:"einzelnen"" "subject:"einzelner""
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Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel CatalystHao, Qi, Liu, Dong-Xue, Deng, Ruiping, Zhong, Hai-Xia 16 May 2024 (has links)
Single-atom catalysts (SACs) with metal–nitrogen (M–N) sites are one of the most promising electrocatalysts for electrochemical carbon dioxide reduction (ECO₂R). However, challenges in simultaneously enhancing the activity and selectivity greatly limit the efficiency of ECO₂R due to the improper interaction of reactants/intermediates on these catalytic sites. Herein, we report a carbon-based nickel (Ni) cluster catalyst containing both single-atom and cluster sites (NiNx-T, T = 500–800) through a ligandmediated method and realize a highly active and selective electrocatalytic CO₂R process. The catalytic performance can be regulated by the dispersion of Ni–N species via controlling the pyrolysis condition. Benefitting from the synergistic effect of pyrrolicnitrogen coordinated Ni single-atom and cluster sites, NiNx-600 exhibits a satisfying catalytic performance, including a high partial current density of 61.85 mA cm⁻² and a high turnover frequency (TOF) of 7,291 h⁻¹ at −1.2 V vs. RHE, and almost 100% selectivity toward carbon monoxide (CO) production, as well as good stability under 10 h of continuous electrolysis. This work discloses the significant role of regulating the coordination environment of the transition metal sites and the synergistic effect between the isolated single-site and cluster site in enhancing the ECO₂R performance.
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| 22 |
Vergleichende Evaluationsstudie zur Wirksamkeit des Tinnitus-Bewältigungs-Trainings und der Tinnitus-Retraining-Therapie / Comparative study - evaluating the effectiveness of tinnitus-coping-training and tinnitus-retraining-therapyZachriat, Claudia 06 May 2003 (has links)
No description available.
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Räumlich-zeitliche Auswirkungen der Landnuzung auf die Diversität von Bienen und Wespen. / Spatiotemporally-mediated effects of land use on the biodiversity of cavity-nesting Hymenoptera in coastal EcuadorTylianakis, Jason 19 January 2006 (has links)
No description available.
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| 24 |
Mäuse, Maden, Maulwürfe. / Zur Thematisierung von Ungeziefer im 18. Jahrhundert / Mice, Maggots, Moles. / On Discussion of Vermin in the 18th CenturyWindelen, Steffi 19 December 2008 (has links)
No description available.
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| 25 |
Ḏsr-s.t - Studien zum Kleinen Tempel von Medinet Habu / Ḏsr-s.t - Studies on the Small Temple of Medinet HabuDemuß, Katja 05 July 2007 (has links)
No description available.
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Markenführung in der Ernährungswirtschaft / Brand Management in the Food SectorStaack, Torsten 11 November 2005 (has links)
No description available.
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Plant-insect interactions in changing environments / Pflanze-Insekt Interaktionen unter dem Einfluß von UmweltveränderungenGladbach, David Joachim 06 July 2010 (has links)
No description available.
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The search for substellar companions to subdwarf B stars in connection with evolutionary aspects / Die Suche nach substellaren Begleitern um unterleuchtkräftige B Sterne in Verbindung mit evolutionären AspektenLutz, Ronny Bernd 27 September 2011 (has links)
No description available.
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| 29 |
Analysis of time series of solar-like oscillations - Applications to the Sun and HD52265 / Zeitreihenanalyse sonnenähnlicher Oszillationen Anwendung auf Beobachtungen der Sonne und HD52265Stahn, Thorsten 05 October 2010 (has links)
No description available.
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| 30 |
Probing modes of vesicle docking in neurosecretory cells with evanescent wave microscopy / Untersuchung zur Vesikel-Andockmodi in neurosecretorischen Zellen mit TotalreflektionsmikroskopieKochubey, Olexiy 18 January 2006 (has links)
No description available.
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