Preparation and Conductivity of Carbon Fiber Coated with Silver

Cao, Xiao Guo; Liang, Chun Lei; Xia, Shi

doi:10.4028/www.scientific.net/msf.847.137

Cited by 7 publications

(4 citation statements)

References 25 publications

(26 reference statements)

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“…The Ag layer of the obtained samples has an ordered arrangement on the fiber surface and within the carbon layer instead of the carbon surfaces. This phenomenon may be attributed to a larger proportion of active groups on poplar catkin fiber [16]. Therefore, the morphology difference of the CWF-Ag composites is due to the fiber structural performance by itself, as shown in Fig.…”

Section: Resultsmentioning

confidence: 97%

High-performance supercapacitor poplar catkin Ag/carbon fibers composites

Zhang

et al. 2020

Appl. Phys. A

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An efficient method is described to fabricate carbonized wood fibers (CWF)-based electrode materials decorated with Ag particles (CWF-Ag) through electroless plating, and further carbonization from natural biomass poplar catkin and poplar fiber. Intrinsic physical advantages of poplar catkin fibers provide a chance of evenly dispersed Ag layer in addition to successful modulation of porosity and conductivity. However, the separation process resulted in cross-linked structures defect of poplar fibers, which impeded Ag particles to uniformly disperse. CWF-Ag from poplar catkin (CWF-Ag-poplar catkin) displays well-defined electrochemical performance for supercapacitors on account of its large specific surface area (745 m 2 /g), and hierarchical porous structure. Remarkably, CWF-Ag-poplar catkin achieves a high specific capacitance of 250 F/g at a current density of 1 A/g in 1 M KOH electrolyte that is about 1.3 times higher than CWF-Ag-poplar fiber (190 F/g). The result is due to uniform loading of silver on fibers. CWF-Ag-poplar catkin shows good rate capability and outstanding cycling stability up to 5000 times (only 5% loss of capacitance). The present study provides a simple and efficient approach (electroless plating) to design a high capacitance and stable supercapacitor electrode from natural biomass without treatment.

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Section: Resultsmentioning

confidence: 97%

High-performance supercapacitor poplar catkin Ag/carbon fibers composites

Zhang

et al. 2020

Appl. Phys. A

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“…As reported in the literature, a small amount of Ag nanoparticles on the fiber surface can act as seed nucleus and efficiently improve the following Ag loading on fibers. In these experiments, Ag + was firstly adsorbed on fibers from its solution (at a very low concentration), then Ag + on fibers was reduced to Ag nanoparticles and functioned on fibers as seed nucleus via a hydrogen anion (H − ) reduction process, as shown in Eqn (3)

{normalAg}^{+} + {([], {normalBH}_{4})}^{-} + {normalH}_{2} O = Ag + {normalH}_{3} {normalBO}_{3} + {normalH}_{2} + {normalH}^{+}

…”

Section: Resultsmentioning

confidence: 99%

Silver‐doped carbon fibers at low loading capacity that display high antibacterial properties

Zhang

Chen

Sun

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Renewable resources have been considered for producing many advanced materials. In this respect, silver‐doped carbon‐based materials with a low loading capacity and high antibacterial activity can also be generated via environmentally friendly routes and from renewable resources. RESULTS Silver‐doped carbon fibers were prepared from wood and cotton fibers via complexation and reduction reactions for depositing silver on the fibers and subsequently via carbonization of the loaded fibers. Silver loading before carbonization enhanced the stability of silver on the carbonized fibers, decreased silver loss (from 30 to 12%) and lowered the silver loading (5.66%) needed to achieve excellent antibacterial activity. However, wood‐based silver‐doped carbon fibers performed better than cotton‐based carbon fibers with respect to loss of antibacterial activity (12% at a silver loading of 5.66% versus 24% at a silver loading of 7.97% in 800 h respectively). These results are attributed to more uniformity in the distribution of silver nanoparticles in the porous structure of wood fibers than in cotton fibers. CONCLUSION The wood‐based carbon fibers exhibited better antibacterial activity and stronger affinity for maintaining silver and lower required silver loadings, and the sequence of silver loading and carbonization was crucial in developing silver‐loaded carbon fibers with good antibacterial performance. © 2019 Society of Chemical Industry

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“…To remedy this, CFs have been coated with metals including Cu, Ag, Co, Cr, Fe, Ti and Ni [32,[37][38][39] by physical vapor deposition (PVD), chemical vapor deposition (CVD), sol-gel, electroless plating, and electroplating [40][41][42][43][44]. Ni coating to CF is reported to lower the contact angle from 140 • to just 4 • [45] hence several methods of coating CF with Ni are noted here.…”

Section: Introductionmentioning

confidence: 99%

A Novel Nickel-Plated Carbon Fiber Insert in Aluminum Joints with Thermoplastic ABS Polymer or Stainless Steel

Nishi,

Sagawa,

Faudree

et al. 2023

Materials

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New types of hybrid aluminum joints: Al-acrylonitrile butadiene styrene (ABS) carbon fiber reinforced thermoplastic polymer (CFRTP) designated Al/Ni-CFP/ABS, and Al-18-8 Stainless steel, Al/Ni-CFP/18-8, by Ni-plated carbon fiber plug (Ni-CFP) insert not before seen in the literature have been fabricated. The goal is to take advantage of extremely high ~6 mm CF surface area for high adhesion, to enhance the safety level of aircraft and other parts. This is without fasteners, chemical treatment, or glue. First, the CFP is plated with Ni. Second, the higher melting point half-length is spot welded to the CFP; and third, the remaining half-length is fabricated. The ultimate tensile strength (UTS) of Al/Ni-CFP/ABS was raised 15 times over that of Al/ABS. Normalized cUTS according to CFP cross-section by Rule of Mixtures for cAl/Ni-CFP/18-8 was raised over that of cAl/Ni-CFP/18-8 from 140 to 360 MPa. Resistance energy to tensile deformation, UT, was raised 12 times from Al/ABS to Al/Ni-CFP/ABS, and 6 times from Al/CFP/18-8 to Al/Ni-CFP/18-8. Spot welding allows rapid melting followed by rapid solidification for amorphous metal structures minimizing grain boundaries. The Ni-coating lowers or counters the effects of brittle Al4C3 and FexC formation at the interface and prevents damage by impingement to CFs, allowing joints to take on more of the load.

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Preparation and Conductivity of Carbon Fiber Coated with Silver

Cited by 7 publications

References 25 publications

High-performance supercapacitor poplar catkin Ag/carbon fibers composites

High-performance supercapacitor poplar catkin Ag/carbon fibers composites

Silver‐doped carbon fibers at low loading capacity that display high antibacterial properties

A Novel Nickel-Plated Carbon Fiber Insert in Aluminum Joints with Thermoplastic ABS Polymer or Stainless Steel

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