Nickel–cobalt layered double hydroxide nanoflakes combined carbonized melamine sponge for high-performance supercapacitors and pressure sensors

Hu, Hexiang; Li, Jialun; Jiang, Yi; Wang, Liying; Yang, Xijia; Li, Xuesong; Lü, Wei

doi:10.1007/s11581-023-05133-5

Cited by 5 publications

(3 citation statements)

References 49 publications

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“…The sensor exhibited excellent responsiveness in these tests as well. Compared to the same type of work ,− (Figure S8 and Table S3), this device has the potential to have a wider temperature range with similar other properties.…”

Section: Resultsmentioning

confidence: 99%

“…Melamine foam (MF), known as melamine sponge, is a low-cost and readily available porous material with a porosity of over 98%. , Its carbonized form, known as carbon foam or carbon skeleton (CMF), exhibits excellent electrical conductivity, thermal stability, and chemical inertness. In addition, the high porosity of carbonized foam results in a large specific surface area, which can load more active substances .…”

Section: Introductionmentioning

confidence: 99%

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Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Gu,

Jiang,

Yang

et al. 2024

ACS Appl. Nano Mater.

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Flexible and wearable pressure sensors have attracted significant attention due to their wide range of potential applications. However, they often suffer from low sensitivity, narrow pressure detection range, and poor mechanical flexibility. In this work, a multifunctional 3D pressure sensor based on a ternary metal oxide@carbon-based sponge (C−NiCoZn−O/ CMF) was developed by the hydrothermal method. The pressure feedback layer of the sensor was uniformly coated with C− NiCoZn−O on the surface of the framework, which improved the device's conductivity, sensitivity, and stability significantly. The sensitivities of 41.99, 23.39, and 11.19 kPa −1 are in the ranges 0− 4.01, 4.01−8.39, and 8.39−20.1 kPa, respectively, and the cyclic retention rate exceeded 90% after 2000 cycles. The C−NiCoZn− O/CMF composite demonstrated excellent electrochemical performance as an electrode for supercapacitors, with a high specific capacity of 2030 mF/cm 2 at a current density of 1 mA/cm 2 and a high capacity retention rate of 81.55% after 4000 cycles. As a multifunctional device, when integrated with a microprocessor, it can easily detect and process a large amount of human physiological signal data in daily work scenarios. Present composites maintain adjustable conductivity and extremely high elasticity even under extreme conditions such as liquid nitrogen and high temperatures up to 85.6 °C. This work is expected to play a great role in polar exploration, volcano survey, deep space exploration, etc.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Gu,

Jiang,

Yang

et al. 2024

ACS Appl. Nano Mater.

Self Cite

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show abstract

“…With the continuous development of wearable devices, flexible pressure sensors, as an important type of signal collection device, have been widely used in fields, such as health monitoring − and human–computer interaction. − According to the basic sensing principles, pressure sensors can be divided into piezoresistive, piezoelectric, capacitive, and triboelectric types . Compared with other types, piezoresistive devices have good repeatability, − small signal fluctuations, low cost, and simple preparation process and can realize continuous monitoring of static pressure, which has broad application prospects. − …”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive, Wide-Sensing-Range rGO/NiMoO₄@CMF Pressure Sensor Based on Biomimetic Mimosa Flowers for Health Monitoring and Human–Computer Interaction

Ji,

Zhang,

Zhou

et al. 2024

ACS Appl. Nano Mater.

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Flexible wearable electronic skin (e-skin) has great potential in health monitoring, human–computer interaction, and other fields. However, traditional devices are often unable to maintain high sensitivity while achieving a wide detection range. In this work, inspired by biomimicry, we proposed a design based on mimosa flowers and developed a composite pressure sensing device (reduced graphene oxide (rGO)/NiMoO4@CMF). The strain layer of the sensor undergoes hydrothermal growth, allowing nickel molybdate (NiMoO4) to grow in situ on the surface of the carbon melamine foam (CMF). This enhances the substrate morphology, and rGO is then applied to increase the electrical conductivity. The devices prepared by this method have sensitivities of 19.3, 12.5, and 8.1 kPa–1 in the ranges of 0–12, 12–29, and 29–40 kPa, respectively. In addition, the sensor demonstrates a low detection limit (10 Pa), a fast response (160 ms), and a cycle retention rate of 86% after 5000 cycles. Based on these characteristics, the flexible sensor can detect strong human body movements in real time, such as finger bending, elbow movement, and knee bending. The study shows that this pressure sensor has broad application prospects in health monitoring.

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Optimisation of properties of multidimensional hybrid polymer nanocomposites for flexible pressure sensors

Liu,

Jia,

Yang

et al. 2024

Chemical Engineering Journal

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Nickel–cobalt layered double hydroxide nanoflakes combined carbonized melamine sponge for high-performance supercapacitors and pressure sensors

Cited by 5 publications

References 49 publications

Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Highly Sensitive, Wide-Sensing-Range rGO/NiMoO₄@CMF Pressure Sensor Based on Biomimetic Mimosa Flowers for Health Monitoring and Human–Computer Interaction

Optimisation of properties of multidimensional hybrid polymer nanocomposites for flexible pressure sensors

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Nickel–cobalt layered double hydroxide nanoflakes combined carbonized melamine sponge for high-performance supercapacitors and pressure sensors

Cited by 5 publications

References 49 publications

Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Elastic Multifunctional Pressure Sensor Based on C–NiCoZn–O/CMF Composites for Polar Exploration

Highly Sensitive, Wide-Sensing-Range rGO/NiMoO4@CMF Pressure Sensor Based on Biomimetic Mimosa Flowers for Health Monitoring and Human–Computer Interaction

Optimisation of properties of multidimensional hybrid polymer nanocomposites for flexible pressure sensors

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Highly Sensitive, Wide-Sensing-Range rGO/NiMoO₄@CMF Pressure Sensor Based on Biomimetic Mimosa Flowers for Health Monitoring and Human–Computer Interaction