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Hirano, Makoto (author), Wada, Kazuhito (author), Matsuda, Hirokazu (author), Pidko, E.A. (author)Herein, we present a practical strategy to enhance the performance of a multiphase system for bicarbonate hydrogenation based on a molecular Ru-PNP pincer catalyst. This study demonstrates that the use of organic antioxidants not only mitigates catalyst degradation but also significantly boosts its intrinsic activity. This enables efficient...journal article 2024
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Afreen, G. (author), Bansode, Atul (author), Wada, Kazuhito (author), Hirano, Makoto (author), Matsuda, Hirokazu (author), Urakawa, A. (author)Multiphasic reaction of bicarbonate hydrogenation to form formate using homogeneous Ru PNP pincer catalyst in a continuous flow tubular reactor is reported. The reaction system consists of three phases. Catalyst is dissolved in toluene while potassium bicarbonate is dissolved in water. The significance of efficient mixing among the organic...journal article 2024
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Vaquerizo, L. (author), Kiss, A.A. (author)Methanol and DME are highly efficient fuels and relevant building blocks that can be synthesized by CO<sub>2</sub> hydrogenation. While several alternatives for methanol production by CO<sub>2</sub> hydrogenation have already been developed at a commercial scale, DME production is still based on methanol dehydration. In this sense, the...journal article 2024
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Homan, S.J.T. (author), Aylar, K. (author), Jurjevic, A. (author), Scolari, M. (author), Urakawa, A. (author), Taheri, P. (author)When no hydrogen can reach the Pt catalyst in the anode for the hydrogen oxidation reaction (HOR) of an operating proton exchange membrane fuel cell (PEMFC), the anode potential increases and causes the cell potential to be reversed compared to normal operation conditions. During this reversal, the oxygen evolution reaction (OER) and carbon...journal article 2024
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Meng, Weixin (author), de Jong, B. (author), van de Bovenkamp, Henk V. (author), Boer, Gert Jan (author), Leendert Bezemer, G. (author), Dugulan, A.I. (author), Xie, Jingxiu (author)CO<sub>2</sub> hydrogenation to chemicals and fuels has the potential to alleviate CO<sub>2</sub> emissions and displace fossil resources simultaneously via consecutive RWGS and FTS reactions, also known as CO<sub>2</sub>-FTS. As Fe-based catalysts are active and selective for both reactions, their bifunctionality requires a delicate balance...journal article 2024
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Zhao, Pengcheng (author), Guo, W. (author), Gui, Zhipeng (author), Jiang, Jie (author), Zhu, Zhihua (author), Li, Jin Jin (author), Zhao, Ling (author), Zhou, Jian (author), Xi, Zhenhao (author)Upcycling of waste plastics into value-added chemicals and fuels represents a promising orientation toward a more sustainable chemical industry. We present a selective process for hydrocracking waste polyolefins into a spectrum of branched gasoline-range C<sub>5-12</sub> hydrocarbons, utilizing a cerium-promoted Pt/HY as a metal-acid...journal article 2024
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Pinto, D. (author), Minorello, S. (author), Zhou, Zhouping (author), Urakawa, A. (author)Carbon dioxide capture and reduction (CCR) process emerges as an efficient catalytic strategy for CO<sub>2</sub> capture and conversion to valuable chemicals. K-promoted Cu/Al<sub>2</sub>O<sub>3</sub> catalysts exhibited promising CO<sub>2</sub> capture efficiency and highly selective conversion to syngas (CO + H<sub>2</sub>). The dynamic...journal article 2024
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Israr, Muhammad (author), Humayun, Muhammad (author), Suliman, Munzir H. (author), Abdinejad, M. (author), Rasheed, Tahir (author), Helal, Aasif (author), Khan, Iltaf (author), Bououdina, Mohamed (author), Wang, Chundong (author), Usman, M. (author)Nowadays, extensive efforts have been devoted to the fabrication and design of metalbased catalysts with high activity, selectivity, and stability. Theoretical and experimental investigations have empowered the construction of a variety of techniques to tune the catalytic efficiency of catalysts by monitoring their size, morphology,...review 2024
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SPYRIDONIDOU, PELAGIA (author)The present graduation thesis “The shopping mall as an urban catalyst” explores the idea of an urban structure where working, crafting, living, meeting, and learning are entangled. The aim of this exploration mainly lies in the creation of a “skill city”, where groups that have not yet been fully integrated into the area under research can be...master thesis 2023
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Venugopal, A. (author)Climate change, due to the continued emissions of carbon dioxide into our atmosphere and subsequent warming of the planet, is an existential crisis facing humanity. The rising temperature is are resulting in the melting of our ice caps and glaciers, influencing the weather patterns, are making many parts of the world unliveable and are driving...doctoral thesis 2023
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Ariëns, M.I. (author)Hydrogen gas is an essential reagent in numerous industrial processes including ammonia synthesis. Ammonia is a key intermediate in the synthesis of nitrogen-based fertilisers, e.g. nitrates and urea. According to recent estimates (2008), approximately half of the world population is fed by nitrogen-based fertilisers of synthetic origin....doctoral thesis 2023
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Živković, Aleksandar (author), Solsona-Delgado, Vanessa (author), van der Linden, B. (author), de Leeuw, Nora H. (author), Melián-Cabrera, Ignacio (author)A descriptor of active CuO-ZnO(Al<sub>2</sub>O<sub>3</sub>) methanol-synthesis and water–gas-shift catalysts is the presence of high-temperature carbonates (HT-CO<sub>3</sub>) in the oxidic catalyst precursor. Previous reports have shown that such HT-CO<sub>3</sub> lead to an appropriate interaction between the oxides; as a result, a high Cu...journal article 2023
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Zhao, Guofeng (author), Moulijn, J.A. (author), Kapteijn, F. (author), Dautzenberg, Frits M. (author), Xu, Bin (author), Lu, Yong (author)Heterogeneous catalysis plays a pivotal role in the current chemical and energy vectors production. Notably, to fully utilize the intrinsic activity and selectivity of a catalyst, the chemical reactor has to be designed and operated optimally to achieve enhanced heat/mass transfer, well-defined contact time of reactants, uniform flow pattern,...journal article 2023
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Kosimov, Akmal (author), Alimbekova, Amina (author), Assafrei, Jurgen Martin (author), Ahmadi, Majid (author), Roohi, K. (author), Taheri, P. (author), Pinto, Sara M. (author), Cepitis, Ritums (author), Baptista, Antonio J. (author), Kongi, Nadezda (author)Efficient and sustainable synthesis of performant metal/nitrogen-doped carbon (M-N-C) catalysts for oxygen reduction and evolution reactions (ORR/OER) is vital for the global switch to green energy technologies-fuel cells and metal-air batteries. This study reports a solid-phase template-assisted mechanosynthesis of Fe-N-C, featuring low-cost...journal article 2023
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Zhou, Yong (author), Sadia Traore, Aliou (author), Peron, Deizi V. (author), Barrios, Alan J. (author), Chernyak, Sergei A. (author), Corda, Massimo (author), Safonova, Olga V. (author), Dugulan, A.I. (author), Ersen, Ovidiu (author)CO<sub>2</sub> hydrogenation is an attractive way to store and utilize carbon dioxide generated by industrial processes, as well as to produce valuable chemicals from renewable and abundant resources. Iron catalysts are commonly used for the hydrogenation of carbon oxides to hydrocarbons. Iron-molybdenum catalysts have found numerous...journal article 2023
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Bunea, S. (author), Coppens, Manoj (author), Urakawa, A. (author)The continuous electrochemical NO reduction to ammonia in a PEM cell was investigated in this work. We used a ruthenium-based catalyst at the cathode and an iridium oxide catalyst at the anode. The highest ammonia faradaic efficiency was observed at 1.9 V cell voltage. Adjusting the NO flow allowed to achieve 97% NO conversion and 93% ammonia...journal article 2023
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Pinto, D. (author), Hu, L. (author), Urakawa, A. (author)Dynamic coke-mediated dry reforming of methane (DC-DRM) is an unsteady-state strategy to overcome the limitations of co-feed operation, including the fast deactivation of the catalysts and the loss of valuable H<sub>2</sub> in the reverse water gas-shift reaction. This paper proves the feasibility of DC-DRM on Ni-based catalytic systems,...journal article 2023
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Latsiou, A.L. (author), Charisiou, Nikolaos D. (author), Frontistis, Zacharias (author), Bansode, Atul (author), Goula, Maria A. (author)Higher alcohol (HA) synthesis via the hydrogenation of CO<sub>2</sub> constitutes a relatively new and exciting field of research that has the potential to help towards the de-carbonization of the energy sector. The process poses formidable challenges, as it demands the formation of at least one C-C bond, when CO<sub>2</sub> is...journal article 2023
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Blake, J.W. (author), Konderla, V. (author), Baumgartner, L.M. (author), Vermaas, D.A. (author), Padding, J.T. (author), Haverkort, J.W. (author)The use of gas diffusion electrodes that supply gaseous CO<sub>2</sub> directly to the catalyst layer has greatly improved the performance of electrochemical CO<sub>2</sub> conversion. However, reports of high current densities and Faradaic efficiencies primarily come from small lab scale electrolysers. Such electrolysers typically have a...journal article 2023
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Spitzbarth, B. (author), Eelkema, R. (author)Dynamic covalent (DCv) ureas have been used abundantly to design self-healing materials. We demonstrate that apart from self-healing materials, the species present in the equilibrium of DCv ureas can be employed as responsive organocatalysts. Easily controllable stimuli like heat or addition of water shift the equilibrium towards isocyanate...journal article 2023