Influence of Mg2+ and Ce3+ substituted on synthesis, structural, morphological, electrical, and magnetic properties of cobalt nano ferrites

Facile, lightweight, and sustainable aerogels have been a growing interest in their applications as support matrixes in the current environmental and energy challenges. In this study, a cellulose aerogel (CA) is fabricated using a homogeneous dispersion of cellulose fibers in an alkali‐urea aqueous solution and a carbon nanotube ink (CNT‐ink) to increase its electrical and conductive behavior in a potentiometric analysis. The physicochemical and morphological properties of the resultant composite aerogels (CA, CA1, and CA2) are investigated by thermal, water resistance, mechanical, FTIR, and SEM analysis. The prepared material exhibits a structured solid network that is visualized through SEM in which fibers are functionalized with CNTs. The results from compressive tests reveal that CA2 has excellent mechanical properties. A saturated CA with CNT‐ink can turn on a white LED and potentiometric measurements by preparing an aerogel‐based ion‐selective electrode (CA2 ‐ ISE) with a potassium ion‐selective membrane (K+ − ISM) reveal good sensitivity at room temperature for the detection in a specific electrolyte solution.

Section: Resultsmentioning

confidence: 99%

Section: Experimental Section/methodsmentioning

confidence: 99%

Development of a facile aerogel‐based ion‐selective electrode using cellulose and carbon nanotubes as transducer materials for potentiometric application

Gallegos-Cerda

Chanona-Pérez

Hernández‐Varela

et al. 2023

“…18 As a special type of conducting polymer with similar covalent structure, COFs can promote electron delocalization and thus exhibit better electrical conductivity. At present, COFs are widely used in gas storage and separation, [19][20][21] heterogeneous catalysis, [22][23][24] sensors, 25-27 semiconductors, 17,28,29 electrochromic [30][31][32] and other fields. Furthermore, COFs are one of the candidates for electrode materials for supercapacitors due to their redox activity with adjustable topological structure and high crystallization.…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis and supercapacitive properties of highly electrochemical stable covalent organic frameworks with triazine building block

Guo

Zhao

et al. 2023

Supercapacitors have been widely studied as a typical representative of new energy storage systems. As a type of novel crystalline porous material, covalent triazine frameworks (CTFs) have attracted enormous attention owing to their high nitrogen content and unique triazine ring structure, which give them high chemical and thermal stability. In this paper, 2,4,6‐tris(4‐aldophenyl)‐1,3,5‐triazine (TFPT) and 2,4,6‐tris(4‐aminophenyl)‐1,3,5‐triazine (TAPT) were used to synthesize TPT‐CTFs by Schiff base reaction. TPT‐CTFs exhibit regular nanosheets structure and high crystallinity. The specific capacitance of TPT‐CTFs is 110 F/g at current density of 0.1 A/g. After 10,000 cycles of charge and discharge, the capacitance retention rate is high as 105%, due to the high crystallinity support and expandable channels of TPT‐CTFs. In addition, the simple and convenient one‐pot hydrothermal synthesis used in this paper, avoids harsh conditions of common ampoule methods for synthesis of CTFs materials.

“…Its excellent strength and hardness as well as other properties, including thermal conductivity, corrosion resistance and wear resistance, make it widely used in the field of filler reinforcement materials. Considering its poor biocompatibility, research on the application of filler‐reinforced polymers has focused on the surface modification of their fillers by inorganic and organic coatings 20–29 …”

Section: Introductionmentioning

confidence: 99%

“…Considering its poor biocompatibility, research on the application of filler-reinforced polymers has focused on the surface modification of their fillers by inorganic and organic coatings. [20][21][22][23][24][25][26][27][28][29] In previous reports, for inorganic surface modification to increase the roughness of the surface of the reinforcing filler, silica grafting according to the hydrolytic condensation of TEOS has been studied extensively, while Si 3 N 4 ws has not been subjected to such modification applications for reinforcing filler materials. 4 To improve the surface compatibility of the material, coupling agent modification is considered an effective means.…”

Section: Introductionmentioning

confidence: 99%

Preparation of SiO₂/Si₃N₄ws/PU reinforced coating and its reinforcement mechanism for SLS‐molded TPU materials

Zhang

Hu³

et al. 2023

To address the shortcomings of large porosity and insufficient mechanical properties of skeletonized Thermoplastic polyurethane (TPU) fabrications during the preparation of composite materials by selective laser sintering (SLS) technology. In this paper, SiO2@Si3N4ws‐GPTMS core‐shell structure filler was successfully prepared by first synthetically growing silicon dioxide (SiO2) nanospheres on the surface of silicon nitride whiskers (Si3N4ws) in situ by sol–gel method, and then modified with silane coupling agent Silane coupling agent (GPTMS). Then the filler was incorporated into the inner and outer surfaces of TPU skeletonized structural parts by vacuum dip coating using a water‐based polyurethane (PU) coating post‐treatment enhancement method, and the surface coating coating of TPU skeletonized structural parts was achieved by warming and curing. This composite filler coating structure greatly improved the mechanical properties of the SLS parts (tensile strength of 20.3 MPa and elongation at break of 338.9%, 163% higher tensile strength, 17.7% higher elongation at break, and 672% higher rebound dimension compared with the pure TPU sintered parts). In addition, the thermal stability of the SLS sintered parts was improved, which greatly enhanced the application of the sintered manufactured parts prepared by SLS technology in the field of rebound‐absorbing artificial wear.