Effect of glyphosate on X-ray diffraction of copper films prepared by electrochemical deposition

Zhang, Gaomin; Xu, Bin; Chong, Hui; Wei, Wenxian; Wang, Chengyin; Wang, Guoxiu

doi:10.1039/c9ra01385g

Cited by 24 publications

(13 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…31 When Cu is grafted to graphite, the graphitic peak shifts to 2θ = 26.7 o . In addition, few extra narrow peaks have appeared at 2θ = 20 o , 40°, 36.5°and 55°due to grafting of Cu and further, similar observation for Cu films has been reported by Zhang 32 and team. In addition, graphite shows two other very low peaks at 2θ = 44.65 o and 2θ = 54.67 o .…”

Section: Resultssupporting

confidence: 87%

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Sampath

Fernando

Edirisinghe

2023

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

Conductive polymer composites, which are extensively applied in the fields of sensors, batteries, memory materials, etc. possess some significant properties mainly high electrical conductivity and good mechanical performance. In this study, copper (Cu) was grafted onto the graphite surface according to a chemical process. The Cu-grafted graphite (Cu-g-graphite) was characterized via fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), where the analysis proved that Cu was successfully grafted onto the graphite surface. Subsequently, natural rubber (NR) composites were prepared by varying the Cu-g-graphite loading from 0 phr (parts per hundred rubber) to 10 phr at 2 phr intervals. The 8 phr Cu-g-graphite filled NR composite showed better physico-mechanical properties in comparison with the other Cu-g-graphite composites and the NR composite prepared without Cu-g-graphite (control). Also, the former composite showed better thermal ageing and electrical conductivity which are requirements for sensor applications. Further, electrical conductivity of the Cu-g-graphite/NR composites prepared with greater than 4 phr loading of Cu-g-graphite was at a high level. Furthermore, the Cu-g-graphite filled NR composites indicated a remarkable improvement in electrical conductivity compared to that of the control. Finally, the performance of NR composite prepared with 8 phr loading of Cu-g-graphite in overall showed a considerable level of applicability for high electrical, thermal and physico-mechanical polymeric applications.

show abstract

Section: Resultssupporting

confidence: 87%

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Sampath

Fernando

Edirisinghe

2023

Journal of Elastomers & Plastics

View full text Add to dashboard Cite

show abstract

“…The XRD profile shows that the MG49-based electrode has retained the highest degree of crystallinity, with a strong and sharp diffraction peak at around 2θ = 26°, which can be assigned to the (002) reflection peak of graphite. , A small peak at 2θ = 54° (004) is related to the planes of the bulk graphite . The peaks that appear at around 2θ = 44, 51, and 74° are related to the plane of (111), (200), and (220) of the copper electrode substrate and Super P. , No obvious changes in intensity of peak and peak shifting are observed for these electrodes regardless of binders and Super P contents. Compared with the sample containing the PVDF and SBR + CMC binder, a drastically reduced peak intensity is observed (Figure a).…”

Section: Resultsmentioning

confidence: 98%

Poly(methyl methacrylate) Grafted Natural Rubber Binder for Anodes in Lithium-Ion Battery Applications

Azaki,

Ahmad,

Hassan

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

Binders are one of the crucial components in batteries that provide adhesion for active materials and substrates. However, binders have always been the least studied materials compared with cathodes, anodes, and electrolytes. Here, a semicrystalline poly(methyl methacrylate) grafted natural rubber (MG49) was independently used and studied as a standalone rubber-based binder for graphite-based anode in Li-ion batteries. A comprehensive investigation of physicochemical and electrochemical performances of these electrodes consisting of the MG49 binder was done. The X-ray diffraction analysis found that the MG49-based electrodes showed good crystalline peaks that belong to the graphite compared with PVDF-and SBR + CMC-based electrodes. Similarly, the surface morphology and topography results of MG49-based electrodes and blank SBR + CMC displayed a better distribution of graphite and Super P. This led to an enhanced diffusion coefficient for the optimum electrode and a low charge transfer resistance (R ct ) of 153.4 Ω, which is comparable to those of SBR + CMC (129.4 Ω) and PVDF (570.5 Ω). Equally, the MG49-based electrode possessed a good reversibility redox reaction and low polarization. The evaluation of battery performance showed good resilient cycling stability and capacity retention (84.7%), and their Coulombic efficiency was maintained at >98.5%, underlying the potential use of MG49 rubber as a binder in Li-ion battery applications.

show abstract

“…The several diffraction peaks near 45° and a peak near 59.2° are assigned to the Co x C phase in the Fe–Co (S) catalyst. The presence of iron species in reduced and used catalysts is not discerned in the XRD pattern, which could be attributed to the low amount of iron or the high dispersion of the iron species in the catalysts. − …”

Section: Resultsmentioning

confidence: 99%

Comparative Study of Short-Chain Olefins Synthesis via CO₂ Hydrogenation over Iron-Containing Double Metal Cyanide-Derived Catalysts

Singh

Panda

Gahtori

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

In this article, we prepared a series of K-promoted double metal cyanide (DMC) catalysts consisting of iron with a late 3d transition metal (Mn, Co, Cu, and Zn) using a single-step conventional precipitation method and examined them for CO2 value addition to short-chain olefins via modified Fischer–Tropsch route. Several ex situ/in situ combined with temperature-programmed desorption (TPD) experiments were carried out to identify the species in the catalysts and evaluate the adsorption/desorption characteristics of the reduced catalysts. The CO2 conversion for bimetallic catalysts increases in the following order: Fe–Mn (R): 24.85% < Fe–Zn (R): 28.60 < Fe–Cu (R): 29.40% < Fe–Co (R): 39.10% whereas selectivity of the short-chain olefins (C2–C4 =) in hydrocarbons decreases in the following order: Fe–Mn (R): 56.1% > Fe–Cu (R): 55.4% > Fe–Zn (R): 50.8% > Fe–Co (R): 44.3%, at 20 bar pressure, 320 °C temperature, and a gas hour space velocity (GHSV) of 3600 mL·gcat –1·h–1. Remarkably, during the optimization of the reaction conditions, short-chain olefins selectivity over the Fe–Mn (R) catalyst unprecedently reached up to 63.8% in hydrocarbons with 30.56% CO2 conversion. The TPD results and reaction performance reveal that the Fe–Co (R) catalyst has higher adsorption for weakly adsorbed CO2, H2, and CO, which results in higher CO2 conversion, lower CO, and higher hydrocarbon selectivity with a lower O/P ratio. Contrarily, the Fe–Mn (R) catalyst exhibits opposite reaction outcomes to the Fe–Co (R) catalyst owing to its lower adsorption for weakly adsorbed CO2, H2, and CO. These findings shed light on how the conversion of reactant and product distribution is affected by the adsorption/desorption characteristics of the catalysts for the reactant and important intermediates.

show abstract

Effect of glyphosate on X-ray diffraction of copper films prepared by electrochemical deposition

Abstract: Quantitative probing of glyphosate by combining electrochemical deposition and X-ray diffraction methods.

Cited by 24 publications

References 36 publications

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Poly(methyl methacrylate) Grafted Natural Rubber Binder for Anodes in Lithium-Ion Battery Applications

Comparative Study of Short-Chain Olefins Synthesis via CO₂ Hydrogenation over Iron-Containing Double Metal Cyanide-Derived Catalysts

Contact Info

Product

Resources

About

Effect of glyphosate on X-ray diffraction of copper films prepared by electrochemical deposition

Abstract: Quantitative probing of glyphosate by combining electrochemical deposition and X-ray diffraction methods.

Cited by 24 publications

References 36 publications

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Synthesis of copper-grafted graphite and its effect on properties of natural rubber composites

Poly(methyl methacrylate) Grafted Natural Rubber Binder for Anodes in Lithium-Ion Battery Applications

Comparative Study of Short-Chain Olefins Synthesis via CO2 Hydrogenation over Iron-Containing Double Metal Cyanide-Derived Catalysts

Contact Info

Product

Resources

About

Comparative Study of Short-Chain Olefins Synthesis via CO₂ Hydrogenation over Iron-Containing Double Metal Cyanide-Derived Catalysts