scholarly journals Mixed-Oxide Catalysts with Spinel Structure for the Valorization of Biomass: The Chemical-Loop Reforming of Bioethanol

Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 332 ◽  
Author(s):  
Olena Vozniuk ◽  
Tommaso Tabanelli ◽  
Nathalie Tanchoux ◽  
Jean-Marc Millet ◽  
Stefania Albonetti ◽  
...  
Keyword(s):  
Solid State ◽  
Spinel Structure ◽  
Mixed Oxides ◽  
Building Blocks ◽  
Short Review ◽  
Solid State Chemistry ◽  
Spinel Type ◽  
Mixed Oxide Catalysts ◽  
Versatile Tool ◽  
Review Reports

This short review reports on spinel-type mixed oxides as catalysts for the transformation of biomass-derived building blocks into chemicals and fuel additives. After an overview of the various methods reported in the literature for the synthesis of mixed oxides with spinel structure, the use of this class of materials for the chemical-loop reforming of bioalcohols is reviewed in detail. This reaction is aimed at the production of H2 with intrinsic separation of C-containing products, but also is a very versatile tool for investigating the solid-state chemistry of spinels.

Nitridocompounds of manganese: manganese nitrides and nitridomanganates

2002 ◽  
Vol 217 (1) ◽  
Author(s):  
R. Niewa
Keyword(s):  
Solid State ◽  
Short Review ◽  
Oxidation States ◽  
Solid State Chemistry ◽  
Structures And Properties

AbstractThe chemistry of nitrides and nitridometalates is a rapidly growing field in solid state chemistry. This short review is intended to give a brief but comprehensive over-view on the compounds and phases formed with manga-nese, which cover an especially broad range of oxidation states. Furthermore, the present paper tries to put the ob-served structures and properties of the compounds into a broader context.

scholarly journals V-Containing Mixed Oxide Catalysts for Reduction–Oxidation-Based Reactions with Environmental Applications: A Short Review

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 564 ◽  
Author(s):  
M. Guerrero-Pérez
Keyword(s):  
Mixed Oxide ◽  
Mixed Oxides ◽  
Short Review ◽  
Environmental Applications ◽  
Industrial Chemistry ◽  
Oxidation Reactions ◽  
Present Contribution ◽  
Mixed Oxide Catalysts ◽  
Clear Increase ◽  
Vanadium Species

V-containing mixed oxide catalytic materials are well known as active for partial oxidation reactions. Oxidation reactions are used in industrial chemistry and for the abatement of pollutants. An analysis of the literature in this field during the past few years shows a clear increase in the use of vanadium-based materials as catalysts for environmental applications. The present contribution makes a brief revision of the main applications of vanadium containing mixed oxides in environmental catalysis, analyzing the properties that present the catalysts with a better behavior that, in most cases, is related with the stabilization of reduced vanadium species (as V4+/V3+) during reaction.

Supramolecular inorganic frameworks: “dynamic” challenges for structural chemistry

2005 ◽  
Vol 220 (4) ◽  
Author(s):  
Leslie J. May ◽  
George K. H. Shimizu
Keyword(s):  
Solid State ◽  
Supramolecular Chemistry ◽  
Building Blocks ◽  
Short Review ◽  
Supramolecular System ◽  
Structural Rearrangements ◽  
Error Checking ◽  
Discrete Structures ◽  
State Coordination ◽  
Programmed Assembly

AbstractThe supramolecular chemistry of discrete assemblies of various topologies (cages, grids, helices, etc.) has been extensively studied. With regards to the supramolecular chemistry of infinite solids, attention is usually focussed on the design of an efficient, programmed assembly motif through the choice of suitable building blocks. However, as well illustrated by the discrete structures, a hallmark property of a supramolecular system is its ability to reversibly assemble to optimize its structure, effectively error checking. For a rigid infinite framework, this feature is less obvious. Error checking is manifested in an extended framework through structural rearrangements in the solid state. Coordination frameworks, as they are often at least partially sustained by weaker interactions, can demonstrate such dynamic behavior in response to some external stimulus. Selected examples, chosen to illustrate a range of network types and rearrangements, will be discussed in this short review.

Solid State Chemistry

1968 ◽  
Vol 58 (5_6) ◽  
pp. 331-332
Author(s):  
K. Hauffe
Keyword(s):  
Solid State ◽  
Solid State Chemistry

scholarly journals Wine By-Products as Raw Materials for the Production of Biopolymers and of Natural Reinforcing Fillers: A Critical Review

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 381
Author(s):  
Alessandro Nanni ◽  
Mariafederica Parisi ◽  
Martino Colonna
Keyword(s):  
Critical Review ◽  
Raw Materials ◽  
Green Revolution ◽  
Building Blocks ◽  
Poly Lactic Acid ◽  
Butylene Succinate ◽  
Reinforcing Fillers ◽  
Plastic Industry ◽  
Review Reports ◽  
By Products

The plastic industry is today facing a green revolution; however, biopolymers, produced in low amounts, expensive, and food competitive do not represent an efficient solution. The use of wine waste as second-generation feedstock for the synthesis of polymer building blocks or as reinforcing fillers could represent a solution to reduce biopolymer costs and to boost the biopolymer presence in the market. The present critical review reports the state of the art of the scientific studies concerning the use of wine by-products as substrate for the synthesis of polymer building blocks and as reinforcing fillers for polymers. The review has been mainly focused on the most used bio-based and biodegradable polymers present in the market (i.e., poly(lactic acid), poly(butylene succinate), and poly(hydroxyalkanoates)). The results present in the literature have been reviewed and elaborated in order to suggest new possibilities of development based on the chemical and physical characteristics of wine by-products.

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