Green Carbon Dots Illuminate Biogenic Nanohybrids toward Soft, Piezo/Photoactive, and Physically Transient Nanogenerators

Wang, Chuanfeng; Lu, Liang; Liu, Zhu; Lai, Yu; Li, Juan; Xia, Zhipei; Cao, Jingjing; Wang, Xuanlun; Lu, Jun; Yang, Weiqing

doi:10.1021/acssuschemeng.3c00957

Cited by 2 publications

(1 citation statement)

References 64 publications

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“…The last two decades have witnessed the rapidly development of nanogenerators, which can harvest small-scale green energy to generate electricity via nanotechnology based on piezoelectric, triboelectric, pyroelectric, thermoelectric, and ion stream. [1,[14][15][16][17][18][19][20] However, all these nanogenerators requires specific conditions, such as external mechanical strain or stress, physical motion, and difference in temperature or ion concentration. Water-enabled electricity generation is an emerging hydrovoltaic technology, which can convert small-grade energy contained in water to electricity via electrokinetic effect by the interaction of functional nanomaterials with raindrops, water waves, water evaporation, and ambient moisture.…”

Section: Introductionmentioning

confidence: 99%

All Wood‐Based Water Evaporation‐Induced Electricity Generator

Lin,

Zhang,

Lin

et al. 2024

Adv Funct Materials

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Water evaporation‐induced electricity generators (WEIGs) are promising as self‐powered electronic devices, as they can harvest green, small‐grade, and ubiquitous hydrovoltaic energy in ambient environment to electricity. Here, biodegradable wood‐based WEIGs with high performance are reported by removing lignin and hemicellulose from balsa wood (BW) with more exposed cellulose nanofibrils. Delignified BW (DBW) and cellulosic BW (CBW) display significant enhance in open circuit potential (Voc) and short circuit current (Isc) due to increased specific surface area, hydrophilicity, and surface charge density. The electricity‐generating performance of CBW‐based WEIG (CBWG) is not stable due to its structural collapse. DBW‐based WEIG (DBWG) shows a steady electricity output and fast responsivity to ambient environments, such as humidity, temperature, light, and wind. Therefore, DBWGs can be employed as self‐powered environmental sensors. The effects of different kinds of electrolytes with varied concentrations on the performance of DBWG are also studied. The DBWG (40 mm × 40 mm × 2 mm) displays a Voc of 0.77 V and Isc of 148 µA in 1.2 m CaCl2 solution. In this study, all wood‐based sustainable WEIGs with high electricity generating performance are facilely prepared and are promising for remote self‐powered environmental sensors and power sources.

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Section: Introductionmentioning

confidence: 99%

All Wood‐Based Water Evaporation‐Induced Electricity Generator

Lin,

Zhang,

Lin

et al. 2024

Adv Funct Materials

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Obtaining cellulose nanocrystals by acid hydrolysis procedure; and their use as reinforcement in polylactide biocomposites

Sarı,

Kaynak

2024

Journal of Thermoplastic Composite Materials

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In the first step of this study, purpose was to obtain and characterize cellulose nanocrystal (CNC) particles by applying sulfuric acid hydrolysis method to the starting material of microcrystalline cellulose (MCC) fibrils. After obtaining CNC particles via acid hydrolysis procedure, various analyses (SEM, DLS, FTIR, XRD, TGA) conducted revealed that average size of round shaped CNC particles was 38 nm with −30.4 mV Zeta potential value. They had monoclinic Cellulose-I crystal structure with Crystallinity Index of 80.6% and Crystallite Size of 3.39 nm. Their maximum thermal degradation temperature was 307°C with 23 wt% residue at 800°C. In the second step, the main aim was to investigate contribution of these obtained CNC particles when they were used as nano-reinforcement in polylactide (PLA) matrix biocomposites produced by industrially compatible melt mixing and shaping techniques. Mechanical tests revealed that when only 1 wt% CNC particles were incorporated into PLA matrix, increases in flexural strength and modulus were 29% and 51%; while increases in K IC and G IC fracture toughness values were 42% and 105%, respectively. Because, high degree of hydroxyl groups and presence of sulfate half-ester groups on the surfaces of CNC particles improved the interfacial interactions between the matrix and nano-reinforcement phase, leading to efficiency in strengthening and toughening mechanisms.

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Green Carbon Dots Illuminate Biogenic Nanohybrids toward Soft, Piezo/Photoactive, and Physically Transient Nanogenerators

Cited by 2 publications

References 64 publications

All Wood‐Based Water Evaporation‐Induced Electricity Generator

All Wood‐Based Water Evaporation‐Induced Electricity Generator

Obtaining cellulose nanocrystals by acid hydrolysis procedure; and their use as reinforcement in polylactide biocomposites

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