Nanoarchitectonics for inorganic chemistry frontiers

Ariga, Katsuhiko

doi:10.1039/d3qi00632h

Cited by 6 publications

(3 citation statements)

References 52 publications

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“…Thus far, we have been discussing various nanoarchitectonics approaches in different media under various conditions [104,[330][331][332]. These previous reviews elucidate the importance of surrounding environments including nanospace confinements.…”

Section: Summary and Perspectivesmentioning

confidence: 99%

Confined Space Nanoarchitectonics for Dynamic Functions and Molecular Machines

Ariga

2024

Micromachines

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Nanotechnology has advanced the techniques for elucidating phenomena at the atomic, molecular, and nano-level. As a post nanotechnology concept, nanoarchitectonics has emerged to create functional materials from unit structures. Consider the material function when nanoarchitectonics enables the design of materials whose internal structure is controlled at the nanometer level. Material function is determined by two elements. These are the functional unit that forms the core of the function and the environment (matrix) that surrounds it. This review paper discusses the nanoarchitectonics of confined space, which is a field for controlling functional materials and molecular machines. The first few sections introduce some of the various dynamic functions in confined spaces, considering molecular space, materials space, and biospace. In the latter two sections, examples of research on the behavior of molecular machines, such as molecular motors, in confined spaces are discussed. In particular, surface space and internal nanospace are taken up as typical examples of confined space. What these examples show is that not only the central functional unit, but also the surrounding spatial configuration is necessary for higher functional expression. Nanoarchitectonics will play important roles in the architecture of such a total system.

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Section: Summary and Perspectivesmentioning

confidence: 99%

Confined Space Nanoarchitectonics for Dynamic Functions and Molecular Machines

Ariga

2024

Micromachines

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“…One of the ultimate goals of chemical research in both industries and academia is the creation of sustainable, efficient, and green chemical processes. − In this regard, researchers are working worldwide to develop greener approaches and technologies for the chemical industry, motivated by green chemistry principles and the sustainable development goals of the United Nations (UN). − Out of several chemical processes, selective hydrogenation is one of the most important organic transformation reactions which is extensively used in both chemical laboratories and industries for the synthesis of various pharmaceuticals, agrochemicals, and fine chemicals. − Generally, two methods are mainly utilized for the hydrogenation of organic compounds, i.e., direct hydrogenation via molecular hydrogen gas (H 2 ) and second one is the catalytic transfer hydrogenation (CTH) method, wherein the hydrogen is transferred from various hydrogen sources. Conventionally, the hydrogenation of organic compounds was done by using molecular hydrogen (H 2 ), but this method has some limitations, such as the highly flammable nature of H 2 , the use of high temperature and, in addition, the handling of high-pressurized H 2 increases the infrastructure cost for large-scale industrial reactions, which is not a sustainable approach for hydrogenation reactions. − Due to these drawbacks of molecular H 2 , an alternative approach for hydrogenation reactions is CTH methodology, which can be done by using metal hydride reagents and other suitable hydrogen sources.…”

Section: Introductionmentioning

confidence: 99%

Nanoarchitectonics of Non-Noble-Metal-Based Heterogeneous Catalysts for Transfer Hydrogenation Reactions: Detailed Insights on Different Hydrogen Sources

Sharma,

Choudhary,

Mittal

et al. 2024

ACS Catal.

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Catalytic transfer hydrogenation (CTH) methodology has drawn profound attention of researchers as an economical and environmentally benign alternate to conventional hydrogenation method. Unlike conventional method, CTH exhibits better reaction efficiency and atom economy, and it makes use of simple, easily accessible, low-cost hydrogen sources. Current research on CTH reactions is oriented toward the development of non-noble-metal-based catalysts due to their high abundance and potential large-scale applicability. In this Review, different organic transformation reactions, such as hydrogenation of nitroarenes, nitriles, alkenes, alkynes, and carbonyl compounds, hydrogenolysis, reductive amination, and reductive formylation reaction using different hydrogen sources have been summarized comprehensively. In addition, synthesis strategies of the non-noble-metal-based heterogeneous catalysts and the structure−activity relationship involving metal−support interaction, single-atom catalysis, and synergistic effect are highlighted. Furthermore, the optimization of the reaction parameters�such as temperature, time, solvents, and additives�for enhancing the catalytic activity and selectivity of the product are discussed in detail. This Review provides detailed insights into the recent progress made in CTH reactions using non-noble-metal-based heterogeneous catalysts with a specific focus on catalyst development, hydrogen sources, and mechanistic exploration.

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“…, montmorillonite) through electrostatic and van der Waals interactions, constitute an example taken to the industrial production of hybrid materials, opening many possibilities for the synthesis of this type of nanostructured materials 9 by applying the nanoarchitectonic concepts. 10,11…”

Section: Introductionmentioning

confidence: 99%