Synthesis, Attributes and Defect Control of Defect-Engineered Materials as Superior Adsorbents for Aqueous Species: A Review

Mudhoo, Ackmez; Pittman, Charles U.

doi:10.1007/s10904-022-02405-x

Cited by 5 publications

(2 citation statements)

References 160 publications

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“…Defect engineering, in particular, is crucial for designing high-performance carbon nanomaterials tailored for diverse energy conversion and storage applications [90]. Properly introduced defects can optimize the surface chemistry of active sites, modulate the adsorption of reaction intermediates, and consequently amplify catalytic activity [91]. This realm of engineering spans adjustments in electronic structures at molecular or atomic scales, such as lattice distortion [92], intentional vacancies, and uncoordinated sites [85,93].…”

Section: Defect Engineeringmentioning

confidence: 99%

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Yan,

Guo,

Tan

et al. 2024

Materials

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Water splitting is an important way to obtain hydrogen applied in clean energy, which mainly consists of two half-reactions: hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). However, the kinetics of the OER of water splitting, which occurs at the anode, is slow and inefficient, especially in acid. Currently, the main OER catalysts are still based on noble metals, such as Ir and Ru, which are the main active components. Hence, the exploration of new OER catalysts with low cost, high activity, and stability has become a key issue in the research of electrolytic water hydrogen production technology. In this paper, the reaction mechanism of OER in acid was discussed and summarized, and the main methods to improve the activity and stability of non-noble metal OER catalysts were summarized and categorized. Finally, the future prospects of OER catalysts in acid were made to provide a little reference idea for the development of advanced OER catalysts in acid in the future.

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Section: Defect Engineeringmentioning

confidence: 99%

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Yan,

Guo,

Tan

et al. 2024

Materials

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“…Iodine uptake in MOF systems is typically classified as physisorption, relying upon weak, long-range interactions between the iodine and the framework; thus, uptake generally trends with physical porosity benchmarks of the material, such as accessible Brunauer–Emmett–Teller (BET) surface area, pore volume, and aperture dimensions (I 2 has a kinetic diameter of 3.35 Å and requires pore openings of at least this size to diffuse through a material). Thus, designing effective gas sorbents involves the shaping and tailoring of material porosity, which can be achieved by careful selection of ligand dimensions, defect engineering, , or overall MOF topological control . The nonspecific nature of the iodine-sorbent interaction typically makes physisorption reversible, which is beneficial for recyclability but can be detrimental as a long-term sequestration strategy.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Iodine Capture Using a Postsynthetically Modified Thione–Silver Zeolitic Imidazole Framework

Kim,

Yu,

Ra Shin

et al. 2023

ACS Appl. Mater. Interfaces

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Efficient management of radionuclides that are released from various processes in the nuclear fuel cycle is of significant importance. Among these nuclides, radioactive iodine (mainly 129I and 131I) is a major concern due to the risk it poses to the environment and to human health; thus, the development of materials that can capture and safely store radioactive iodine is crucial. Herein, a novel silver–thione-functionalized zeolitic imidazole framework (ZIF) was synthesized via postsynthetic modification and assessed for its iodine uptake capabilities alongside the parent ZIF-8 and intermediate materials. A solvent-assisted ligand exchange procedure was used to replace the 2-methylimidazole linkers in ZIF-8 with 2-mercaptoimidazole, forming intermediate compound ZIF-8 = S, which was reacted with AgNO3 to yield the ZIF-8 = S–Ag+ composite for iodine uptake. Despite possessing the lowest BET surface area of the derivatives, the Ag-functionalized material demonstrated superior I2 adsorption in terms of both maximum capacity (550 g I2/mol) and rapid kinetics (50% loading achieved in 5 h, saturation in 50 h) compared to that of our pristine ZIF-8, which reached 450 g I2/mol after 150 h and 50% loading in 25 h. This improvement is attributed to the presence of the Ag+ ions, which provide a strong chemical driving force to form a stable Ag–I species. The results of this study contribute to a broader understanding of the strategies that can be employed to engineer adsorbents with robust iodine uptake behavior.

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The Importance of Mesoporous Materials (Silica, Alumina, and Zeolite) as Solid Supports for Metal Complex Catalysts in Organic Transformations

Maurya,

Singh,

Pathak

2024

J Inorg Organomet Polym

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Synthesis, Attributes and Defect Control of Defect-Engineered Materials as Superior Adsorbents for Aqueous Species: A Review

Cited by 5 publications

References 160 publications

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid

Enhanced Iodine Capture Using a Postsynthetically Modified Thione–Silver Zeolitic Imidazole Framework

The Importance of Mesoporous Materials (Silica, Alumina, and Zeolite) as Solid Supports for Metal Complex Catalysts in Organic Transformations

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