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Single Layer Graphene Oxide Dispersion

Name: Single Layer Graphene Oxide Dispersion
SKU: ACM7782425-145
Rating: 5 (1 reviews)

Catalog NumberACM7782425-145

CAS Number7782-42-5

CategoryGraphene Dispersion

Application

Applications include transparent conductive films and coatings, solar energy storage cells, nanoelectronics, supercapacitors, biosensors, drug delivery systems, and many others.

Color

Brown/Black

Concentration

GNO1W001 10mg/ml; GNODAW01 5mg/ml, GNO1W005 5mg/ml, GNOD1E01 5mg/ml, GNOD1W01 5mg/ml.

3~5

Preparation Method

Modified Hummer's Method

Single-layer Ratio

>80%

Size

GNO1W001, GNODAW01, GNOD1W01, GNOD1E01: 0.5-2.0μml; GNO1W005: ~500nm

Solvent

GNO1W001, GNODAW01, GNO1W005, GNOD1W01: DI Water ; GNOD1E01: Ethanol

Thickness

0.6-1.2nm

Case Study

Single-Layered Graphene Oxide for the Electrochemical Detection of Phosphate in Environmental and Biological Samples

Li, Shuang-Ning, et al. Process Safety and Environmental Protection 178 (2023): 786-794.

Single-layered graphene oxide (SLGO) has emerged as a highly efficient carbon-based nanomaterial for electrochemical sensing due to its large surface area, abundant oxygen-containing functional groups, and strong interfacial electron transfer capability. This case study highlights the application of SLGO in the development of a sensitive electrochemical platform for phosphate detection in aqueous systems.
SLGO was directly immobilized onto a glassy carbon electrode (GCE) to construct the SLGO/GCE sensor, enabling effective electrochemical adsorption and quantification of phosphate anions (PO₄³⁻). X-ray photoelectron spectroscopy confirmed the formation of covalent P-C and semi-ionic C-O bonds during phosphate adsorption, indicating strong interfacial interaction between SLGO and the target analyte. These interactions enhanced electron transport and significantly improved electrochemical response.
Compared with other carbon nanomaterial-modified electrodes, SLGO/GCE exhibited superior performance attributed to its monolayer structure, higher exposure of active sites, and improved electrolyte accessibility. Under optimized operating conditions, the phosphate concentration displayed a linear correlation with current response within 10.0-100.0 μM, with an impressive detection limit of 2.0 μM (S/N = 3).
Notably, the SLGO-based sensor demonstrated strong applicability in real sample analyses, enabling accurate quantification of phosphate in industrial wastewater and human serum with recoveries of 95.09-103.48%.
This study underscores the potential of single-layered graphene oxide as a powerful platform for developing low-cost, high-sensitivity electrochemical sensors for environmental and biomedical phosphate monitoring.

Single-Layered Graphene Oxide for the Fabrication of Ultrathin High-Speed Humidity Sensors

Zhu, Junyi, et al. Results in Chemistry 7 (2024): 101444.

Single-layered graphene oxide (SLGO) has demonstrated exceptional potential in next-generation sensing technologies due to its large specific surface area, highly tunable hydrophilicity, and abundant oxygen-containing functional groups. This case study highlights the use of SLGO for the preparation of ultrathin, high-performance resistive humidity sensors capable of real-time monitoring.
An ultrathin sensing film was fabricated from stacked SLGO sheets, forming a microscale layered structure that enables rapid adsorption and desorption of water molecules. This engineered architecture significantly enhanced proton conduction and facilitated fast charge transfer, resulting in outstanding humidity-responsive behavior. The SLGO-based sensor exhibited ultra-fast response and recovery times-both below 1 second-across a broad relative humidity range (10-95% RH). Notably, the shortest recorded response and recovery time reached 0.33 s at 10% RH, representing one of the fastest performances reported for graphene oxide-based humidity sensors.
Beyond sensitivity and speed, the SLGO sensor demonstrated remarkable detection capability, responding accurately to subtle humidity variations originating from human breath and finger proximity. The simple fabrication process, miniaturized structure, and rapid signal responsiveness make SLGO a promising material for integrated humidity sensing in smart electronics, wearable devices, and environmental monitoring systems.
Overall, this study underscores the value of single-layered graphene oxide as a superior functional material for developing ultra-fast, highly responsive resistive humidity sensors with real-time detection capabilities.

Our products are for research use only and cannot be used for any clinical purposes.

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