Electroless Copper Plating on Liquid Crystal Polymer Films Using Dimethylamine Borane as Reducing Agent

Zhang, Wenlong; Ding, Dongyan

doi:10.1002/jccs.201500412

Cited by 11 publications

(10 citation statements)

References 23 publications

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“…The application of hypophosphite or hydrazine appears to be possible only at elevated temperatures, which limits their use in practice. In addition, boron-containing compounds, in particular dimethylamine borane (DMAB), are frequently used in chemical deposition processes [ 44 , 56 ]. In addition to the three covalent bonds with hydrogen, DMAB contains boron combined with trivalent nitrogen through the unshared electron pair of nitrogen by the donor-acceptor bonding mechanism.…”

Section: Resultsmentioning

confidence: 99%

A Novel Cu2O/ZnO@PET Composite Membrane for the Photocatalytic Degradation of Carbendazim

et al. 2022

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The extremely high levels of water pollution caused by various industrial activities represent one of the most important environmental problems. Efficient techniques and advanced materials have been extensively developed for the removal of highly toxic organic pollutants, including pesticides. This study investigated the photocatalytic degradation of the fungicide carbendazim (Czm) using composite track-etched membranes (TeMs) in an aqueous solution. Copper(I) oxide (Cu2O) and zinc oxide (ZnO) microtubes (MTs) were prepared using an electroless template deposition technique in porous poly(ethylene terephthalate) (PET) TeMs with nanochannels with a density of 4 × 107 pores/cm−2 and diameter of 385 ± 9 nm to yield Cu2O@PET and ZnO@PET composite membranes, respectively. A mixed Cu2O/ZnO@PET composite was prepared via a two-step deposition process, containing ZnO (87%) and CuZ (13%) as crystalline phases. The structure and composition of all composite membranes were elucidated using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) techniques. Under UV–visible light irradiation, the Cu2O/ZnO@PET composite displayed enhanced photocatalytic activity, reaching 98% Czm degradation, higher than Cu2O@PET and ZnO@PET composites. The maximum Czm degradation efficiency from aqueous solution was obtained at an optimal pH of 6 and contact time of 140 min. The effects of various parameters such as temperature, catalyst dosage and sample exposure time on the photocatalytic degradation process were studied. The degradation reaction of Czm was found to follow the Langmuir–Hinshelwood mechanism and a pseudo-first order kinetic model. The degradation kinetics of Czm accelerated with increasing temperature, and the activation energy (Ea) levels were calculated as 11.9 kJ/mol, 14.22 kJ/mol and 15.82 kJ/mol for Cu2O/ZnO@PET, ZnO@PET and Cu2O@PET composite membranes, respectively. The reusability of the Cu2O/ZnO@PET catalyst was also investigated at different temperatures for 10 consecutive runs, without any activation or regeneration processes. The Cu2O/ZnO@PET composite exhibited degradation efficiency levels of over 50% at 14 °C and over 30% at 52 °C after 5 consecutive uses.

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Section: Resultsmentioning

confidence: 99%

A Novel Cu2O/ZnO@PET Composite Membrane for the Photocatalytic Degradation of Carbendazim

et al. 2022

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“…: electroless template synthesis) [3] с использованием шаблонных матриц различной природы: пористых полимерных трековых мембран (ТМ) [4,5], анодированной окиси алюминия [6], углеродных НТ [7] и волокон [8]. В литературе встречаются данные об использовании различных восстановителей темплатного ХО меди: формальдегид [2], аскорбиновая [9,10] или глиоксиловая [11][12][13] кислоты, гидразингидрат [14], гипофосфит [15] и диметиламин-боран [16,17] и др. При комнатной температуре реакция восстановления ионов меди (II) возможна лишь при использовании формальдегида в качестве восстановителя.…”

Section: Introductionunclassified

Kinetic and Thermodynamic Characteristics of the Potassium Hexationoferrate (Iii) Decomposition Catalytic Reaction in the Presence of Composite Track-Etched Membranes

Altynbaeva

Мендибаева

Aimanova

et al. 2021

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The kinetic and thermodynamic parameters of the decomposition of an inorganic wastewater pollutant such as potassium hexacyanoferrate (III) (PHCF) in the presence of composite catalysts based on polymer track membranes (TeMs) and copper nanoparticles (NPs) was studied. Composite catalysts were prepared by electroless template synthesis using a nontoxic reducing agent - ascorbic acid. A systematic study of the process of electroless plating of copper NPs was carried out depending on pH, deposition time, and the number of activations of the polymer template. The structure of the porous composite catalysts was investigated by scanning electron microscopy and X-ray diffractometry. The catalytic properties of the obtained composites were examined in the temperature range of 10-25 °C for a series of samples synthesized with different deposition times. It was shown that the kinetics of the decomposition reaction of PHCF corresponds to the pseudo first-order reaction. Such thermodynamic characteristics as energy, entropy and enthalpy of activation are calculated. The stability of the properties of catalysts has been studied.

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“…The use of boron-based reducing agents, ,− such as DMAB or BH 4 – , in EL Cu baths represents another alternative to HCHO. However, these reducing agents also present issues that limit their usage.…”

Section: Elementsmentioning

confidence: 99%

“…Zhang and Ding have addressed the issue of complex interactions among DMAB bath components by employing an orthogonal L 9 (3) 4 statistically designed experiment to optimize bath stability and performance. They report a performance-optimized pH 9.5 EL Cu bath containing 40 mM CuSO 4 , 40 mM Na 2 EDTA, and 40 mM DMAB that plates an EL Cu film at 50 °C onto an oxidized liquid crystalline polymer film catalyzed by Pd/Sn colloid at a rate of 2.21 μm·h –1 competitive with a corresponding HCHO bath.…”

Section: Elementsmentioning

confidence: 99%

“…Favorable interactions between SAM hydroxyl sites and the EOA or DEOA additives as the amine additive concentration increases inhibit plating of the hydroxylterminated SAM compared to the methyl-terminated SAM. In contrast, for TEOA the formation of Cu II −TEOA mixed ligand complexes that are readily adsorbed to the SAM surface increases the surface concentration of Cu II species and enhances plating rates.Zhang and Ding436 have addressed the issue of complex interactions among DMAB bath components by employing an orthogonal L 9 (3) 4 statistically designed experiment to optimize bath stability and performance. They report a performanceoptimized pH 9.5 EL Cu bath containing 40 mM CuSO 4 , 40 mM Na 2 EDTA, and 40 mM DMAB that plates an EL Cu film at 50 °C onto an oxidized liquid crystalline polymer film catalyzed by Pd/Sn colloid at a rate of 2.21 μm•h −1 competitive with a corresponding HCHO bath.…”

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confidence: 99%

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Electroless Metallization of the Elements: Survey and Progress

Turró

Dressick

2022

ACS Appl. Electron. Mater.

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The electroless plating of metals and their alloys, oxides, and chalcogenides represents a critically important technology for the automotive, aerospace, machine tools, and, especially, the electronics industries. Since the initial efforts involving the plating of industrially important metals, such as Ni, Co, Cu, Ag, and Au, in the mid-20th century, the process has evolved to encompass a growing number of elements. At the same time, this expansion in the palette of accessible metals has enabled progress in these industries and evoked new nonconventional applications. In this review, we collect and survey available electroless processes in aqueous and organic solvent systems for each element organized according to position in the Periodic Table as a resource for the reader. Examples illustrating progress in the field are presented and are described in sufficient detail to be useful and understandable for both the expert and nonexpert. Given the historical importance of electronics as a driver for development of electroless processes, examples are electronics-related where possible. However, we strive to also include examples of applications in nontraditional fields to provide the reader with a sense of generality available for electroless methods. The review closes with an outlook for the field and a challenge to scientists and engineers to adapt electroless processes for new applications to continue the growth of the field.

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Electroless Copper Plating on Liquid Crystal Polymer Films Using Dimethylamine Borane as Reducing Agent

Cited by 11 publications

References 23 publications

A Novel Cu2O/ZnO@PET Composite Membrane for the Photocatalytic Degradation of Carbendazim

A Novel Cu2O/ZnO@PET Composite Membrane for the Photocatalytic Degradation of Carbendazim

Kinetic and Thermodynamic Characteristics of the Potassium Hexationoferrate (Iii) Decomposition Catalytic Reaction in the Presence of Composite Track-Etched Membranes

Electroless Metallization of the Elements: Survey and Progress

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