scholarly journals Emergence and Applications of Base Metals (Fe, Co, and Ni) in Hydroboration and Hydrosilylation

Molecules ◽  
2019 ◽  
Vol 24 (17) ◽  
pp. 3194 ◽  
Author(s):  
Sem Raj Tamang ◽  
Michael Findlater
Keyword(s):  
Metal Complexes ◽  
Base Metal ◽  
Precious Metals ◽  
Review Article ◽  
Metal Salts ◽  
Base Metals ◽  
Metal Catalysis ◽  
Recent Advances

Base metal catalysis offers an alternative to reactions, which were once dominated by precious metals in hydrofunctionalization reactions. This review article details the development of some base metals (Fe, Co, and Ni) in the hydroboration and hydrosilylation reactions concomitant with a brief overview of recent advances in the field. Applications of both commercially available metal salts and well-defined metal complexes in catalysis and opportunities to further advance the field is discussed as well.

scholarly journals Synthesis of Biodegradable Polymers: A Review on the Use of Schiff-Base Metal Complexes as Catalysts for the Ring Opening Polymerization (ROP) of Cyclic Esters

Catalysts ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 800 ◽  
Author(s):  
Orlando Santoro ◽  
Xin Zhang ◽  
Carl Redshaw
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Base Metal ◽  
Biodegradable Polymers ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Polymerization Process ◽  
Cyclic Esters ◽  
Recent Advances ◽  
Schiff Base Metal Complexes

This review describes the recent advances (from 2008 onwards) in the use of Schiff-base metal complexes as catalysts for the ring opening polymerization (ROP) of cyclic esters. The synthesis and structure of the metal complexes, as well as all aspects concerning the polymerization process and the characteristics of the polymers formed, will be discussed.

High loading of NiFe active sites on melamine formaldehyde carbon-based aerogel towards efficient bi-functional electrocatalysis for water splitting

2021 ◽  
Author(s):  
Zhi Chen ◽  
shu zhang ◽  
jian yang ◽  
cheng chen ◽  
yaochen song ◽  
...  
Keyword(s):  
Research And Development ◽  
Water Splitting ◽  
Base Metal ◽  
Active Sites ◽  
Precious Metals ◽  
Lower Price ◽  
High Loading ◽  
Base Metals ◽  
Melamine Formaldehyde ◽  
Carbon Based

Abstract Compared with precious metals, base metals have large abundance in Earth’s crust and much lower price. Thus, the research and development of base metal-based catalysts focus on improving the...

scholarly journals The gold and base metal potential of the Lower Proterozoic Karrat Group, West Greenland

1992 ◽  
Vol 155 ◽  
pp. 57-66
Author(s):  
B Thomassen
Keyword(s):  
Base Metal ◽  
Precious Metals ◽  
Shear Zones ◽  
Base Metals ◽  
West Greenland ◽  
Mineral Potential ◽  
Lead Zinc ◽  
Zinc Mine ◽  
Iron Formations ◽  
Gold Bearing

The mineral potential of the Karrat Group in West Greenland became important after exhaustion in 1990 of the Black Angel lead-zinc mine situated within this supracrustal unit. It consists of shelf and turbidite type metasediments and subordinate metavolcanics deposited in an epicontinental marginal basin. Known mineralization comprises the Black Angel deposit and a number of other marble-hosted lead-zinc occurrences, as well as extensive sulphide facies iron formations and vein type base and precious metals mineralisation in quartzites and metagreywackes. Further areas with anomalously high contents of both base metals and gold-arsenic-tungsten are indicated by drainage geochemistry. The mineral potential of the Karrat Group is for massive base metal sulphide deposits hosted in marbles or clastic metasediments, and turbidite hosted gold-bearing veins and shear zones.

scholarly journals Catalytic (de)hydrogenation promoted by non-precious metals – Co, Fe and Mn: recent advances in an emerging field

2018 ◽  
Vol 47 (4) ◽  
pp. 1459-1483 ◽  
Author(s):  
Georgy A. Filonenko ◽  
Robbert van Putten ◽  
Emiel J. M. Hensen ◽  
Evgeny A. Pidko
Keyword(s):  
Base Metal ◽  
Precious Metals ◽  
Metal Catalysts ◽  
Recent Advances ◽  
Fe And Mn ◽  
Remarkable Progress ◽  
Made In

This review is aimed at introducing the remarkable progress made in the last three years in the development of base metal catalysts for hydrogenations and dehydrogenative transformations.

Recent Advances in Cobalt-Catalyzed Csp2 and Csp3 Cross-Couplings

Synthesis ◽  
2017 ◽  
Vol 49 (17) ◽  
pp. 3887-3894 ◽  
Author(s):  
Jeffrey Hammann ◽  
Maximilian Hofmayer ◽  
Ferdinand Lutter ◽  
Lucie Thomas ◽  
Paul Knochel
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Cross Coupling ◽  
Short Review ◽  
Review Article ◽  
Transition Metal Catalysis ◽  
Coupling Reactions ◽  
Metal Catalysis ◽  
Cross Coupling Reactions ◽  
Recent Advances

The present short review article highlights recent progress in the field of transition-metal catalysis. An overview on recent work involving cobalt-catalyzed cross-coupling reactions and some recent advances from our laboratories are given.1 Introduction2 Csp2–Csp2 Cobalt-Catalyzed Cross-Couplings3 Csp2–Csp3 Cobalt-Catalyzed Cross-Couplings4 Conclusion

Simultaneous Generation of a [2×2] Grid-like Complex and a Linear Double Helicate: A Three-Level Self-Sorting Process

2019 ◽  
Author(s):  
Jean-François Ayme ◽  
Jean-Marie Lehn ◽  
Corinne Bailly ◽  
Lydia Karmazin
Keyword(s):  
Metal Complexes ◽  
Mass Spectroscopy ◽  
Metal Salts ◽  
Simultaneous Generation ◽  
X Ray ◽  
X Ray Crystallography ◽  
Sorting Process

<div>Two constitutional dynamic libraries (CDLs)—each containing two amines, two dialdehydes and two metal salts—have been found to self-sort, generating two pairs of imine-based metallosupramolecular architectures sharing no component, a [2×2] grid-like complex and a linear double helicate. These CDLs provided unique examples of a three-level self-sorting process, as only two imine-based ligand constituents, two metal complexes and two architectures were selected during their assembling out of all the possible combinations of their initial components. The metallosupramolecular architectures assembled were characterized by NMR, mass spectroscopy, and X-ray crystallography.</div>

Schiff Base Metal Complexes Precursor for Metal Oxide Nanomaterial: A Review

2020 ◽  
Vol 16 ◽  
Author(s):  
Meghshyam K. Patil ◽  
Vijay H. Masand ◽  
Atish K. Maldhure
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Metal Oxides ◽  
Base Metal ◽  
Carbonyl Compounds ◽  
Organic Transformations ◽  
Iron Cobalt ◽  
Methods Of Synthesis ◽  
Schiff Base Metal Complexes ◽  
Nickel Manganese

: Schiff bases and their complexes are versatile compounds, which have been synthesized from the condensation of carbonyl compounds with amino compounds and exhibit a broad range of applications in biological, medicinal, catalysis, and industrial purposes. Furthermore, Schiff base-metal complexes have been used as a precursor for the synthesis of different metal oxides, which includes oxides of iron, cobalt, copper, nickel, manganese, vanadium, cadmium, zinc, mercury, etc. and ferrites such as Fe3O4, ZnFe2O4, and ZnCo2O4. These metal oxides have been utilized for several applications, which includes as a catalyst for several organic transformations and for biological activity. This review encompasses different methods of synthesis of metal oxides using Schiff base metal complexes precursor, their characterization, and various applications in detail.

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