scholarly journals Non-noble MNP@MOF: Synthesis and Applications to Heterogenous Catalysis

2021 ◽  
Author(s):  
Nejat Redwan Habib ◽  
Esther Asedegbega-Nieto ◽  
Abi Mengesha ◽  
Isabel Diaz
Keyword(s):  
Heterogeneous Catalysis ◽  
Transition Metals ◽  
Precious Metal ◽  
Heterogenous Catalysis

Transition metals have a long a history in heterogeneous catalysis. Noble or precious transition metals have been widely used in this field. The advantage of noble and precious metal is...

scholarly journals Assessing the usefulness of transition metal carbides for hydrogenation reactions

2019 ◽  
Vol 55 (85) ◽  
pp. 12797-12800 ◽  
Author(s):  
Hector Prats ◽  
Juan José Piñero ◽  
Francesc Viñes ◽  
Stefan T. Bromley ◽  
Ramón Sayós ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Transition Metal ◽  
Transition Metals ◽  
Metal Carbides ◽  
Late Transition Metals ◽  
Transition Metal Carbides ◽  
Hydrogenation Reactions ◽  
Late Transition

Transition Metal Carbides (TMCs) are proposed as viable replacements for scarce and expensive late Transition Metals (TMs) for heterogeneous catalysis involving hydrogenation reactions or steps.

Chemistry of precious metal oxides relevant to heterogeneous catalysis

2013 ◽  
Vol 42 (41) ◽  
pp. 14653 ◽  
Author(s):  
Joshua A. Kurzman ◽  
Lauren M. Misch ◽  
Ram Seshadri
Keyword(s):  
Heterogeneous Catalysis ◽  
Metal Oxides ◽  
Precious Metal

scholarly journals Recent Advances on the Rational Design of Non-Precious Metal Oxide Catalysts Exemplified by CuOx/CeO2 Binary System: Implications of Size, Shape and Electronic Effects on Intrinsic Reactivity and Metal-Support Interactions

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 160 ◽  
Author(s):  
Michalis Konsolakis ◽  
Maria Lykaki
Keyword(s):  
Heterogeneous Catalysis ◽  
Binary System ◽  
Metal Oxides ◽  
Precious Metal ◽  
Noble Metals ◽  
Rational Design ◽  
Highly Active ◽  
Metal Support ◽  
Electronic Chemical ◽  
Free Metal

Catalysis is an indispensable part of our society, massively involved in numerous energy and environmental applications. Although, noble metals (NMs)-based catalysts are routinely employed in catalysis, their limited resources and high cost hinder the widespread practical application. In this regard, the development of NMs-free metal oxides (MOs) with improved catalytic activity, selectivity and durability is currently one of the main research pillars in the area of heterogeneous catalysis. The present review, involving our recent efforts in the field, aims to provide the latest advances—mainly in the last 10 years—on the rational design of MOs, i.e., the general optimization framework followed to fine-tune non-precious metal oxide sites and their surrounding environment by means of appropriate synthetic and promotional/modification routes, exemplified by CuOx/CeO2 binary system. The fine-tuning of size, shape and electronic/chemical state (e.g., through advanced synthetic routes, special pretreatment protocols, alkali promotion, chemical/structural modification by reduced graphene oxide (rGO)) can exert a profound influence not only to the reactivity of metal sites in its own right, but also to metal-support interfacial activity, offering highly active and stable materials for real-life energy and environmental applications. The main implications of size-, shape- and electronic/chemical-adjustment on the catalytic performance of CuOx/CeO2 binary system during some of the most relevant applications in heterogeneous catalysis, such as CO oxidation, N2O decomposition, preferential oxidation of CO (CO-PROX), water gas shift reaction (WGSR), and CO2 hydrogenation to value-added products, are thoroughly discussed. It is clearly revealed that the rational design and tailoring of NMs-free metal oxides can lead to extremely active composites, with comparable or even superior reactivity than that of NMs-based catalysts. The obtained conclusions could provide rationales and design principles towards the development of cost-effective, highly active NMs-free MOs, paving also the way for the decrease of noble metals content in NMs-based catalysts.

NanoSelect Precious Metal Catalysts and their Use in Asymmetric Heterogeneous Catalysis

ChemCatChem ◽  
2014 ◽  
Vol 6 (10) ◽  
pp. 2904-2909 ◽  
Author(s):  
Fiona Kirby ◽  
Carmen Moreno-Marrodan ◽  
Zoltan Baán ◽  
Bas F. Bleeker ◽  
Pierluigi Barbaro ◽  
...  
Keyword(s):  
Heterogeneous Catalysis ◽  
Precious Metal ◽  
Metal Catalysts ◽  
Precious Metal Catalysts ◽  
Asymmetric Heterogeneous Catalysis

scholarly journals Malcolm L. H. Green. 16 April 1936 — 24 July 2020

2021 ◽  
Author(s):  
Robert H. Crabtree
Keyword(s):  
Heterogeneous Catalysis ◽  
Transition Metals ◽  
Organometallic Chemistry ◽  
Chemical Bonding ◽  
Classification Scheme ◽  
Covalent Bond ◽  
Organometallic Compounds ◽  
Nucleophilic Attack ◽  
Transition Elements ◽  
The Uk

Malcolm Green was a remarkable man—even a short meeting was enough to make this clear. He had that rare charismatic ability to connect personally with those around him, whatever their rank or status. Generous of his time with his current coworkers, he also made sure to provide help, encouragement or advice to his alumni as the need arose during their subsequent careers. Inspired by his lead, an unusually large number of them have become widely known figures in chemistry in the UK and beyond. Malcolm laid out his view on his students on one occasion when a visitor to the lab commented on how quickly a large sum had been raised by his alumni for a lectureship in his name. ‘They must really love you’, he said, to which Malcolm replied with his simple philosophy: ‘If you love them, they will love you.’ Malcolm's infectious passion for science and his imaginative approach led him in many diverse directions during his career. Although his signature field was organometallic chemistry, he made later important contributions in nanomaterials and heterogeneous catalysis. Always interested in the reasons why Nature behaves as it does, he pioneered several new and imaginative methods for interpreting and understanding chemical bonding and reactivity, such as the covalent bond classification scheme or the rules for predicting the regiochemistry of nucleophilic attack on organometallics. He cared deeply about education and was the author of the first textbook devoted to the organometallic chemistry of the transition metals, Organometallic compounds. Volume 2: the transition elements , which originally appeared as early as 1968.

Photoactive iron complexes: More sustainable, but still a challenge

2021 ◽  
Author(s):  
Philipp Dierks ◽  
Yannik Vukadinovic ◽  
Matthias Bauer
Keyword(s):  
Transition Metals ◽  
Precious Metal ◽  
Iron Complexes ◽  
Metal Catalysts ◽  
Significant Progress ◽  
Sustainable Future ◽  
Precious Metal Catalysts

On transition metals such as iron rests lots of hope to replace precious metal catalysts in the field of photochemistry for a more sustainable future. Indeed, significant progress has been...

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