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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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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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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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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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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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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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