Synthesis of Large-Area Single-Layer Graphene Using Refined Cooking Palm Oil on Copper Substrate by Spray Injector-Assisted CVD

Aliphatic amine and carboxylic acid ligands are widely used as organic solvents during the bottom-up synthesis of inorganic nanoparticles (NPs). Although the ligands’ ability to alter final NP properties has been widely studied, side reactivity of these ligands is emerging as an important mechanism to consider. In this work, we study the thermal decomposition of common ligands with varying functional groups (amines and carboxylic acids) and bond saturations (from saturated to polyunsaturated). Here, we investigate how these ligand properties influence decomposition in the absence and presence of precursors used in NP synthesis. We show that during the synthesis of inorganic chalcogenide NPs (Cu 2 ZnSnS 4 , Cu x S, and SnS x ) with metal acetylacetonate precursors and elemental sulfur, the ligand pyrolyzes, producing alkylated graphitic species. Additionally, there was less to no ligand decomposition observed during the sulfur-free synthesis of ZnO and CuO with metal acetylacetonate precursors. These results will help guide ligand selection for NP syntheses and improve reaction purity, an important factor in many applications.

show abstract

“…However, metal foils (including Cu) have been used as catalysts in the production of graphene sheets from organic monomers. 101 …”

Section: Resultsmentioning

confidence: 99%

Ligand Decomposition during Nanoparticle Synthesis: Influence of Ligand Structure and Precursor Selection

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Refined palm oil can be used to produce single-layer graphene on a copper substrate through spray injectorassisted CVD [143]. This method can achieve 97% coverage with good crystallinity, but it is unable to control the amount of defects.…”

Section: Natural Oilsmentioning

confidence: 99%

Synthesis of graphene: Potential carbon precursors and approaches

Yan

Nashath

Chen

et al. 2020

Nanotechnology Reviews

104

View full text Add to dashboard Cite

Graphene is an advanced carbon functional material with inherent unique properties that make it suitable for a wide range of applications. It can be synthesized through either the top–down approach involving delamination of graphitic materials or the bottom–up approach involving graphene assembly from smaller building units. Common top–down approaches are exfoliation and reduction while bottom–up approaches include chemical vapour deposition, epitaxial growth, and pyrolysis. A range of materials have been successfully used as precursors in various synthesis methods to derive graphene. This review analyses and discusses the suitability of conventional, plant- and animal-derived, chemical, and fossil precursors for graphene synthesis. Together with its associated technical feasibility and economic and environmental impacts, the quality of resultant graphene is critically assessed and discussed. After evaluating the parameters mentioned above, the most appropriate synthesis method for each precursor is identified. While graphite is currently the most common precursor for graphene synthesis, several other precursors have the potential to synthesize graphene of comparable, if not better, quality and yield. Thus, this review provides an overview and insights into identifying the potential of various carbon precursors for large-scale and commercial production of fit-for-purpose graphene for specific applications.

show abstract

“…Likewise, graphene growth at 350 o C possesses multilayer graphene, which is confirmed by Raman studies. Maarof et al studied graphene properties on a copper substrate using a refined cooking palm oil by a homemade spray injector-assisted chemical vapor deposition system [38] Large single-layer graphene was obtained on the copper substrates up to 97% coverage area from a size 6400 µm 2 . A 2D band from Raman spectra reveals 10 cm -1 for FWHM values indicating relatively high crystallinity graphene films.…”

Section: Alternative Carbon Precursormentioning

confidence: 99%

Recent Progress on CVD Growth of Graphene from a Liquid Carbon Precursor

Mahyuddin

Ismail

Omar

et al. 2021

Mal. J. Fund. Appl. Sci.

View full text Add to dashboard Cite

Graphene has become a remarkable highlight of advanced material research because of its far superior properties compared to other materials. Chemical vapor deposition (CVD) has emerged as an essential method for scalable production and large area graphene for various applications. Various carbon precursors have been reported for graphene production as they can dramatically impact the graphene growth yield. In the early years of graphene CVD growth, hydrocarbon gases such as methane and acetylene have become favorable carbon precursors because of their stability at elevated temperature and controllable growth. However, hydrocarbon gases are known as explosives and toxic, therefore require a growth system with a high degree of safety and handling precautions. With the limitations mentioned above, liquid carbon source may change the graphene growth landscape as it is relatively inexpensive, non-explosive compared to the conventional gaseous precursor. This article aims to review a detailed synthesis of large-area graphene using liquid carbon precursors via the CVD technique. Challenges and future perspectives are highlights.

show abstract

Synthesis of Large-Area Single-Layer Graphene Using Refined Cooking Palm Oil on Copper Substrate by Spray Injector-Assisted CVD

Cited by 11 publications

References 29 publications

Ligand Decomposition during Nanoparticle Synthesis: Influence of Ligand Structure and Precursor Selection

Ligand Decomposition during Nanoparticle Synthesis: Influence of Ligand Structure and Precursor Selection

Synthesis of graphene: Potential carbon precursors and approaches

Recent Progress on CVD Growth of Graphene from a Liquid Carbon Precursor

Contact Info

Product

Resources

About