Nanoarchitectonics of ultrafine molybdenum carbide nanocrystals into three-dimensional nitrogen-doped carbon framework for capacitive deionization

Li, Haolin; Zhang, Shuaihua; Liu, Bohan; Li, Xiaoheng; Shang, Ningzhao; Zhao, Xiaoxian; Eguchi, Miharu; Yamauchi, Yusuke; Xu, Xingtao

doi:10.1039/d4sc00971a

Chem. Sci.

2024

DOI: 10.1039/d4sc00971a

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Nanoarchitectonics of ultrafine molybdenum carbide nanocrystals into three-dimensional nitrogen-doped carbon framework for capacitive deionization

Haolin Li,

Shuaihua Zhang,

Bohan Liu

et al.

Abstract: Molybdenum carbide (MoC) has emerged as a promising material for capacitive deionization (CDI), but the poor electrochemical kinetics in conventional MoC owing to the bulk structure and low electric conductivity...

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Cited by 13 publications

References 53 publications

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In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Zhang,

Tian,

et al. 2024

Adv Funct Materials

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Molybdenum carbide (MoC) integrated into a carbon matrix, known for its robust interfacial polarization, emerges as a promising ultra‐lightweight EM wave absorber. However, the fabrication of such materials remains a formidable challenge. Herein, a facile and scalable strategy for preparing MoC‐incorporated carbon matrix employing ZnMo‐HZIF foam material through ball‐milling foaming and calcination process as a promising electromagnetic wave materials (EWAMs). In detail, the 3D foam structure reaches impedance matching, and heterogeneous interfaces of N‐doped MoC‐incorporated carbon material (MoC/NC) promote the dipolar/interfacial polarization, confirmed by the hologram. Mo defects induced the charge transfers, displaying an enhanced interfacial polarization. At 15 wt.%, the minimum reflection loss of the obtained sample at 2.5 mm reaches −47.56 dB, and the effective absorption bandwidth spans 4.40 GHz, nearly covering the full X band. Additionally, the assembly device testing demonstrates their excellent self‐cleaning, heat‐insulation, flame retardancy, and infrared stealth properties. This work presents a new perspective on the synergistic effect of structure and components on electromagnetic wave absorption performance and provides a new approach for preparing lightweight and high‐performance MOF‐based electromagnetic wave absorbing materials.

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In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Zhang,

Tian,

et al. 2024

Adv Funct Materials

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Nanoarchitectonics for Biomedical Research: Post‐Nanotechnology Materials Approach for Bio‐Active Application

Ariga

2024

Advanced NanoBiomed Research

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Nanoarchitectonics, as a post‐nanotechnology concept, represents a methodology for the construction of functional materials employing atoms, molecules, and nanomaterials as essential components. The overarching objective of nanoarchitectonics is to develop functional systems comprising multiple functional units assembled in a hierarchical manner, as observed in biological systems. Nevertheless, the construction of such functional systems is a challenging endeavor. It would be prudent, therefore, to initially focus on the development of functional materials that interact with the complex functional structures of living organisms. Accordingly, this review article addresses the topic of nanoarchitecture as it pertains to biomedical applications. This article examines the current trends in research and presents examples of studies that support the concept of nanoarchitectonics and its applications in biomedical fields. The examples presented are as follows: i) molecular nanoarchitectonics developments, which are mainly based on molecular design and assembly; ii) material nanoarchitectonics examples, which are mainly based on material design using nanomaterials as components; and iii) biomedical applications with porous materials, which will be summarized under the heading of pore‐engineered nanoarchitectonics due to their special structure. Finally, the review provides an overview of these examples and discusses future prospects.

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Challenges and Opportunities of Uranium Extraction From Seawater: a Systematic Roadmap From Laboratory to Industry

Wang,

Tao,

Zuo

et al. 2024

Small Methods

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Uranium extraction from seawater (UES) is crucial for ensuring the sustainable development of nuclear power and has seen significant advancements in recent years. However, natural seawater is a highly complex biogeochemical system, characterized by an extremely low uranium (U) concentration (≈3.3 µg L−1), abundant competitive ions, and significant marine biological pollution, making UES a formidable challenge. This review addresses the challenges encountered in UES and explores potential methods for enhancing the industrial UES system, including membrane separation, electrochemistry, photocatalysis, and biosorption. Additionally, several representative marine tests are summarized and restrictive factors of large‐scale UES are analyzed. Finally, the further development of UES from laboratory to industry applications is promoted, with a focus on technological innovation. The goal is to stimulate innovative ideas and provide fresh insights for the future development of the UES system, bridging the gap between laboratory research and industrial implementation.

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Nanoarchitectonics of ultrafine molybdenum carbide nanocrystals into three-dimensional nitrogen-doped carbon framework for capacitive deionization

Abstract: Molybdenum carbide (MoC) has emerged as a promising material for capacitive deionization (CDI), but the poor electrochemical kinetics in conventional MoC owing to the bulk structure and low electric conductivity...

Cited by 13 publications

References 53 publications

In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Nanoarchitectonics for Biomedical Research: Post‐Nanotechnology Materials Approach for Bio‐Active Application

Challenges and Opportunities of Uranium Extraction From Seawater: a Systematic Roadmap From Laboratory to Industry

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