A flow-rate-controlled double-nozzles approach for electrochemical additive manufacturing

Guo, Yawen; Liu, Pengpeng; Jiang, Pengfei; Hua, Yongshuai; Shi, Kai; Zheng, Hui; Yang, Yabin

doi:10.1080/17452759.2021.1989751

Cited by 9 publications

(3 citation statements)

References 53 publications

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“…Exhibiting a high aspect ratio structure, the micro-nickel column remains upright and undistorted under its own weight, indicative of its relative stiffness in comparison to its weight. This phenomenon occurs as, at smaller length scales, body forces prove less effective in deforming structures than surface forces [27]. Nonetheless, the surface force holds less sway in comparison to the electric field force, resulting in the overall morphology of the micro-nickel column being predominantly influenced by the electric field force.…”

Section: Effect Of Magnetic Field On Microscopic Surface Morphology O...mentioning

confidence: 99%

Effect of Magnetic Field on Maskless Localized Electrodepositing Three-Dimensional Microstructure of Nano Nickel Crystals

Wu,

Jiang,

Xiao

et al. 2024

Materials

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In the intricate process of maskless localized electrodeposition (MLED) for fabricating three-dimensional microstructures, specifically nickel micro-columns with an aspect ratio of 7:1, magnetic fields of defined strength were employed, oriented both parallel and anti-parallel to the electric field. The aim was to achieve nanocrystalline microstructures and elevated deposition rates. A detailed comparative analysis was conducted to examine the volumetric deposition rate, surface morphology, and grain size of the MLED nickel crystal 3D microstructures, both in the absence and presence of the two magnetic field directions, facilitated by a self-assembled experimental setup. The results indicate that the anti-parallel magnetic field significantly boosts the volumetric deposition rate to a notable 19,050.65 μm3/s and refines the grain size, achieving an average size of 24.82 nm. Conversely, the parallel magnetic field is found to enhance the surface morphology of the MLED nickel crystal 3D microstructure.

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Section: Effect Of Magnetic Field On Microscopic Surface Morphology O...mentioning

confidence: 99%

Effect of Magnetic Field on Maskless Localized Electrodepositing Three-Dimensional Microstructure of Nano Nickel Crystals

Wu,

Jiang,

Xiao

et al. 2024

Materials

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“…34 A flow-rate-controlled double-nozzle system, derived from a supply−suction apparatus, was developed for mesoscale ECAM fabrications. 35 The progress in ECAM techniques evokes the development of new strategies for manufacturing advanced PPy at high deposition rates.…”

Section: Introductionmentioning

confidence: 99%

“…However, the meniscus evolves unstable interactions as the diameter increases owing to insufficient surface tension, thus obstructing the fabrication of a microstructured subject. , On the other hand, the insufficient deposition rate hinders the applications of ECAM processing . A flow-rate-controlled double-nozzle system, derived from a supply–suction apparatus, was developed for mesoscale ECAM fabrications . The progress in ECAM techniques evokes the development of new strategies for manufacturing advanced PPy at high deposition rates.…”

Section: Introductionmentioning

confidence: 99%

How Anionic Dopants Impact the Electrochemical Additive Manufacturing of Polypyrrole

Wang,

Cheng,

Zhang

et al. 2023

ACS Appl. Polym. Mater.

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Electrochemical additive manufacturing (ECAM), based on meniscus-guided deposition, is an emerging technique for the fabrication of conducting polymers. The ECAM fabrication of polypyrrole entails the electrochemical polymerization of pyrrole monomers and additive manufacturing of polymers. Herein, we investigate the 2-naphthalene sulfonic acid sodium salt (NSA-a), sodium naphthalene-2,6-disulfonate (NSA-b), and 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt (Tiron) as anionic dopants for the ECAM processing of polypyrrole. The analysis of the dopants, encompassing the electrochemical tests and electron microscopy measurements coupled with energy-level calculations, provides an insight into the influence of their structure and functional groups on polypyrrole depositions. The increase in the charge/mass ratio of the dopant results in lower deposition potential, higher deposition rate, and reduced particle agglomeration. Atomic force microscopy tests reveal that the employment of Tiron demonstrates improved deformation tolerance with stronger adhesion due to the chelating properties. The high electronic conductivity of Tiron-doped polypyrrole is attributed to multiple −SO3 – groups, which enhance the interchain mobility of charge carriers. Tiron-doped polypyrrole micropillars are successfully produced via pulling of the meniscus. The findings present an opportunity for the optimization and engineering of ECAM fabrications.

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Advances in magnetic field-assisted ECM—from magnetoelectric effects to technology applications

et al. 2023

Int J Adv Manuf Technol

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A flow-rate-controlled double-nozzles approach for electrochemical additive manufacturing

Cited by 9 publications

References 53 publications

Effect of Magnetic Field on Maskless Localized Electrodepositing Three-Dimensional Microstructure of Nano Nickel Crystals

Effect of Magnetic Field on Maskless Localized Electrodepositing Three-Dimensional Microstructure of Nano Nickel Crystals

How Anionic Dopants Impact the Electrochemical Additive Manufacturing of Polypyrrole

Advances in magnetic field-assisted ECM—from magnetoelectric effects to technology applications

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