Chemical Modification of Cellulose Nanofibers for the Production of Highly Thermal Resistant and Optically Transparent Nanopaper for Paper Devices

Yagyu, Hitomi; Saito, Tsuguyuki; Isogai, Akira; Koga, Hirotaka; Nogi, Masaya

doi:10.1021/acsami.5b06915

Cited by 86 publications

(61 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2,14,15 Here, 2000 g of pulp slurry (pulp content: 0.5 wt%) was homogenized by a highpressure water jet system (Star Burst, HJP-25008, Sugino Machine Co., Ltd.) equipped with a ball-collision chamber. The injected slurry was repeatedly passed through a small nozzle with a diameter of 0.15 mm under a high pressure of 245 MPa.…”

Section: Nanobrillation and Nanopapermentioning

confidence: 99%

Clear transparent cellulose nanopaper prepared from a concentrated dispersion by high-humidity drying

2018

Self Cite

View full text Add to dashboard Cite

Optically transparent cellulose nanopaper is a promising candidate for flexible device substrates because of its light weight, surface smoothness, and high dimensional stability with respect to temperature.Conventionally, clear transparent nanopaper has been fabricated from cellulose nanofiber dispersions with quite low concentration: less than 0.5 wt%. However, this diluteness leads to several problems, such as huge energy consumption and long operation time for drying. Therefore, nanopaper should be fabricated from a concentrated dispersion to mitigate these problems. In this study, transparent nanopaper was fabricated from cellulose nanofiber dispersions with various concentrations (0.24-1.81 wt%). Optical experiments revealed that the haze of the transparent nanopaper increased monotonically with cellulose nanofiber dispersion concentration, when the cellulose nanofiber dispersion was prepared from holocellulose pulp and conventional over-drying was applied. Based on our insight into the origin of this increase in the haze of transparent nanopaper, we developed highhumidity drying, which successfully produced clear transparent nanopaper from a concentrated dispersion without prolonged drying time.

show abstract

Section: Nanobrillation and Nanopapermentioning

confidence: 99%

Clear transparent cellulose nanopaper prepared from a concentrated dispersion by high-humidity drying

2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…15-20 nm were obtained from softwood chips (Cryptomeria japonica). 5,8 Briefly, the softwood chips were treated with sodium chlorite and potassium hydroxide. Then, an aqueous suspension of the as-prepared wood pulp (0.5 wt%, 2 l) was subjected to a high-pressure water-jet system (Star Burst, HJP-25005E, Sugino Machine, Japan) equipped with a ball-collision chamber.…”

Section: Preparation Of Cellulose Nanofibers and Nanopapermentioning

confidence: 99%

“…Nanopaper has foldability, a relatively high resistance to water and solvents, surface flatness and high optical transparency. [5][6][7][8][9] Furthermore, nanopaper has an extremely low thermal expansion coefficient (6 × 10 − 6 /K) compared with other polymer materials that are used for biodegradable electronics. [10][11][12][13][14][15][16] Therefore, nanopaper has recently received much attention as a substrate for flexible electronics.…”

Section: Introductionmentioning

confidence: 99%

All-nanocellulose nonvolatile resistive memory

et al. 2016

Self Cite

View full text Add to dashboard Cite

Single-use disposable nonvolatile memory devices hold promise for novel applications in internet of everything (IoE) technology by storing the health status of individual humans in daily life. However, conventional memory devices are not disposable because they are mostly composed of non-renewable, non-biodegradable and sometimes toxic materials, causing serious damage to ecological systems when they are released to the environment. Here, we demonstrate an environment-friendly, disposable nonvolatile memory device composed of 99.3 vol.% nanocellulose. Our memory device consists of a nanocellulose-based resistive-switching layer and a nanopaper substrate. The device exhibited nonvolatile resistive switching with the capability of multilevel storage and potential scalability down to the single nanofiber level (ca. 15 nm). The biodegradability of our memory device was confirmed by burying it in natural soil for 26 days.

show abstract

“…Cellulose fiber can also provide strong hydrogen bonding with the active material to ensure mechanical reliability under repeated bendings. [20][21][22][23][24] Although there are previous reports on electrocapacitive-electrochromic devices, [25,26] a cellulose-fiber-based, flexible supercapacitor system with high electrochemical performance that can demonstrate a fully reversible photoresponsive smart coloration, where a wide range of transmittance is obtainable in response to varying sunlight intensity, has not yet been reported to the authors knowledge.…”

Section: Electrochromic Supercapacitorsmentioning

confidence: 99%

Photoresponsive Smart Coloration Electrochromic Supercapacitor

et al. 2017

View full text Add to dashboard Cite

Electrochromic devices have been widely adopted in energy saving applications by taking advantage of the electrode coloration, but it is critical to develop a new electrochromic device that can undergo smart coloration and can have a wide spectrum in transmittance in response to input light intensity while also functioning as a rechargeable energy storage system. In this study, a photoresponsive electrochromic supercapacitor based on cellulose-nanofiber/Ag-nanowire/reduced-graphene-oxide/WO -composite electrode that is capable of undergoing "smart" reversible coloration while simultaneously functioning as a reliable energy-storage device is developed. The fabricated device exhibits a high coloration efficiency of 64.8 cm C and electrochemical performance with specific capacitance of 406.0 F g , energy/power densities of 40.6-47.8 Wh kg and 6.8-16.9 kW kg . The electrochromic supercapacitor exhibits excellent cycle reliability, where 75.0% and 94.1% of its coloration efficiency and electrochemical performance is retained, respectively, beyond 10 000 charge-discharge cycles. Cyclic fatigue tests show that the developed device is mechanically durable and suitable for wearable electronics applications. The smart electrochromic supercapacitor system is then integrated with a solar sensor to enable photoresponsive coloration where the transmittance changes in response to varying light intensity.

show abstract

Chemical Modification of Cellulose Nanofibers for the Production of Highly Thermal Resistant and Optically Transparent Nanopaper for Paper Devices

Cited by 86 publications

References 35 publications

Clear transparent cellulose nanopaper prepared from a concentrated dispersion by high-humidity drying

Clear transparent cellulose nanopaper prepared from a concentrated dispersion by high-humidity drying

All-nanocellulose nonvolatile resistive memory

Photoresponsive Smart Coloration Electrochromic Supercapacitor

Contact Info

Product

Resources

About