Marine polysaccharide-based electromagnetic absorbing/shielding materials: design principles, structure, and properties

Wang, Honghan; An, Qingda; Xiao, Zuoyi; Tong, Yao; Ge, Lin; Zhai, Shangru; Xiao, Ling‐Ping; Ha, Chang‐Sik

doi:10.1039/d2ta03529d

Cited by 51 publications

(27 citation statements)

References 223 publications

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“…The exploration and development of seabed oil and gas, natural gas hydrate, and solid mineral resources by a marine electromagnetic method 1 has far-reaching strategic significance to alleviate the pressure of the depletion of land resources. 2 With the increasing coverage of more and more marine electromagnetic surveys, the development of high-stability marine electric-field sensor system 3,4 is of great significance for improving the detection accuracy of deep-sea electric field signals in marine electromagnetic exploration. 5 Therefore, the marine electric-field electrode 6 (hereinafter referred to as the electrode) with excellent performance has become the hardware basis and premise of marine electric-field detection.…”

Section: Introductionmentioning

confidence: 99%

“…Graphene 21 is a hexagonal two-dimensional (2D) material with a honeycomb lattice shape composed of a sp 2 -hybridized connected carbon atom layer. 22 The bond length of sp 2 hybridized carbon atom is 0.142 nm and its thickness is only the thickness of one carbon atom layer (0.34 nm). 23 Due to its monolayer structure, graphene exhibits a variety of excellent properties, such as outstanding thermal conductivity, 24 high electron mobility, good light transmittance, and great specific surface area.…”

Section: Introductionmentioning

confidence: 99%

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Ag/Reduced Graphene Oxide/Carbon Fiber Composites as Electrodes for Highly Stable and Responsive Marine Electric Field Sensors

Sun

et al. 2023

ACS Appl. Nano Mater.

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The increasing demand for maintenance-free, costeffective, and high-stability flexible electrodes is highly anticipated for the research of marine electric-field sensors, and various carbon fibers (CFs) are considered the most suitable carbon-based electrode for the purpose. Nevertheless, the conventional fabrication of acidified or nitrogenized CF electrodes did not attract great attention for commercial application, which has limitations in the case of simultaneous cost-effectiveness and longterm stability. In this study, with homemade reduced graphene oxide (rGO) load, the prepared double carbon substrate Ag-rGO-CF composite electrodes have a honeycomb rGO conductive skeleton and the dispersed Ag nanoparticles via a facile hermetic oxidation process and hydrothermal method. The prepared Ag-rGO-CF composite electrode demonstrated an outstanding electrode performance, including low resistance, high electrochemical reaction rate, and stable potential with long-term stability and low cost. The electric double-layer (EDL) structure theory from the Gouy−Chapman−Stern model and double carbon substrate mechanism between CFs and rGO with the help of Ag were clarified, whose principle is to strengthen the adsorption force and electrostatic attraction of the electrode and to offset the residual charge while reducing the thickness of the electric double layer to achieve the purpose of potential balance. The Ag-rGO-CF composite electrode has presented long-term stability and high sensitivity, especially a wide application bandwidth. The Ag-rGO-CF composite electrode made in this study is a competitive candidate material as a flexible marine electrode field sensor.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ag/Reduced Graphene Oxide/Carbon Fiber Composites as Electrodes for Highly Stable and Responsive Marine Electric Field Sensors

Sun

et al. 2023

ACS Appl. Nano Mater.

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“…36,37 It can interact with each other through hydrogen bonds to form hydrogels without extra additives, while SA aerogels are easily formed through removing the liquid on the premise of maintaining the hierarchical porous structure of the hydrogel matrix. 38 Moreover, the abundant oxygen-containing groups (−OH, =O, and −COO) on SA promote it to form hydrogen bonding with some functional groups of conductive fillers to attach them more efficiently. 39,40 Conductive filler graphene (GP) is widely used in functional materials with excellent electromagnetic interference shielding properties due to its large aspect ratio and specific surface area.…”

Section: Introductionmentioning

confidence: 99%

“…Sodium alginate (SA) can be introduced into the MF to form additional interfaces. It has been recognized that SA is a promising biopolymer substrate for functional materials due to its low cost, low density, and high specific surface area. , It can interact with each other through hydrogen bonds to form hydrogels without extra additives, while SA aerogels are easily formed through removing the liquid on the premise of maintaining the hierarchical porous structure of the hydrogel matrix . Moreover, the abundant oxygen-containing groups (−OH, =O, and −COO) on SA promote it to form hydrogen bonding with some functional groups of conductive fillers to attach them more efficiently. , Conductive filler graphene (GP) is widely used in functional materials with excellent electromagnetic interference shielding properties due to its large aspect ratio and specific surface area. , Therefore, assembling SA with MF to attach GP is an effective strategy to construct high-efficiency EMI shielding materials.…”

Section: Introductionmentioning

confidence: 99%

Construction of Three-Dimensional Network Hierarchy Structure Based on Melamine Foam for Electromagnetic Shielding

Mo,

Li,

et al. 2023

ACS Appl. Nano Mater.

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With the rapid development of wireless communication and electronic equipment, there is an urgent need for lightweight and compressible electromagnetic interference (EMI) shielding materials to solve the increasingly serious problem of electromagnetic pollution. Graphene (GP) is widely used in functional materials with excellent electromagnetic interference shielding properties due to its large aspect ratio and specific surface area. Hierarchical structure attached by GP is constructed in melamine foams (MF) with the assistance of sodium alginate (SA) through simple impregnation and freeze-drying methods. Benefiting from such unique hierarchical porous structure, the composite foam achieves a high electrical conductivity of 39.1 S/m and an exceptional electromagnetic interference (EMI) shielding effectiveness (EMI SE) of 45.8 dB in the range of X-band (8.2−12.4 GHz) at only 2 mm thickness, resulting in a significant EMI shielding effectiveness as 3541.7 dB cm 2 g −1 . In addition, SA endows the improved compressive strength of MF with less effect on the resilience of MF due to the supporting effect of SA. The prepared foams show superior thermal stability, making it possible to expand the range of applications. This work fabricated highly efficient EMI shielding materials for reducing electromagnetic pollution, while also broadening the application areas of EMI shielding materials in complex environments.

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“…[3] Electromagnetic radiation will seriously influence the normal operation of electronic equipment, and even cause equipment failure. [4,5] Meanwhile, the quick progress of radar technologies and various advanced detector technologies have posed a serious threat to military equipment. [6] Therefore, it is necessary to rely on stealth technologies to improve the concealment of military equipment, avoid being tracked and located, then increase its survivability.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Graphdiyne/Graphene Composite Microsphere with Wrinkled Surface via Ultrasonic Spray Compounding and its Microwave Absorption Properties

Ling

Liu

et al. 2022

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Advanced carbon materials are constantly being used in the field of microwave absorption. Herein, in order to enrich the variety and expand the application fields of graphdiyne (GDY), the wrinkled graphene (RGO) nanosheet coated and embedded with GDY porous microspheres (RGO/GDY) are prepared by GDY synthesis, ultrasonic spray, and pyrolysis. The study finds that RGO and GDY have effective synergistic effects. The suitable pores and composition, conductive network formed by overlapping 0D and 2D materials, special surface and internal morphology design, and high-temperature activation process make RGO/GDY exhibit excellent impedance matching and attenuation capabilities. Under the best amount of GDY (20 mg), the particle sizes of the microspheres (≈6 µm), and filler content (27.5%), the minimum reflection loss (RL min ) is −58

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Marine polysaccharide-based electromagnetic absorbing/shielding materials: design principles, structure, and properties

Abstract: An investigation of design principles, preparation processes and structural properties is carried out to predict the development tendency of marine polysaccharide-based electromagnetic response materials which cater to the current targeted demands.

Cited by 51 publications

References 223 publications

Ag/Reduced Graphene Oxide/Carbon Fiber Composites as Electrodes for Highly Stable and Responsive Marine Electric Field Sensors

Ag/Reduced Graphene Oxide/Carbon Fiber Composites as Electrodes for Highly Stable and Responsive Marine Electric Field Sensors

Construction of Three-Dimensional Network Hierarchy Structure Based on Melamine Foam for Electromagnetic Shielding

Fabrication of Graphdiyne/Graphene Composite Microsphere with Wrinkled Surface via Ultrasonic Spray Compounding and its Microwave Absorption Properties

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