Wind energy harvester based on coaxial rotatory freestanding triboelectric nanogenerators for self-powered water splitting

Ren, Xiaoyong; Fan, Huiqing; Wang, Chao; Ma, Jiangwei; Li, Hua; Zhang, Mingchang; Lei, Shenhui; Wang, Weijia

doi:10.1016/j.nanoen.2018.06.002

Cited by 106 publications

(54 citation statements)

References 40 publications

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“…For potential applications of the further miniaturization of electronic components, optical detectors, chemical and biochemical sensors, and devices are exciting possibilities with metal nanoparticles. Additionally, the semiconductors have been used as sensitizers for widening absorption range, such as CdSe, CdS, PbS, WO 3 , and Cu 2 O [5, 6]. Among these semiconductors, Cu 2 O is an interesting candidate due to its narrow band gap of ~ 2.1 eV, non-toxicity, low cost and abundance but heterostructure of Cu 2 O/ZnO is a promising material structure.…”

Section: Introductionmentioning

confidence: 99%

Polymer Microfibers Incorporated with Silver Nanoparticles: a New Platform for Optical Sensing

et al. 2019

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The enhanced sensitivity of up-conversion luminescence is imperative for the application of up-conversion nanoparticles (UCNPs). In this study, microfibers were fabricated after co-doping UCNPs with polymethylmethacrylate (PMMA) and silver (Ag) solutions. Transmission losses and sensitivities of UCNPs (tetrogonal-LiYF 4 :Yb 3+ /Er 3+ ) in the presence and absence of Ag were investigated. Sensitivity of up-conversion luminescence with Ag (LiYF 4 :Yb 3+ /Er 3+ /Ag) is 0.0095 K −1 and reduced to (LiYF 4 :Yb 3+ /Er 3+ ) 0.0065 K −1 without Ag at 303 K under laser source (980 nm). The UCNP microfibers with Ag showed lower transmission losses and higher sensitivity than without Ag and could serve as promising candidate for optical applications. This is the first observation of Ag-doped microfiber via facile method.

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Section: Introductionmentioning

confidence: 99%

Polymer Microfibers Incorporated with Silver Nanoparticles: a New Platform for Optical Sensing

et al. 2019

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“…A coupling of solar energy and blue energy could be a wonderful way for the development of clean energy, especially when it can also solve the problem of electricity transmission. [ 21–35 ] For example, solar cell or photoelectrochemical (PEC) water splitting can be well coupled with TENGs to collect both mechanical energy and solar energy. [ 26–28 ] Interestingly, self‐powered PEC water splitting can convert the energy to the chemical energy of hydrogen which can be stored and transferred, and can fully use the water resource of ocean.…”

Section: Introductionmentioning

confidence: 99%

“…[ 26–28 ] Interestingly, self‐powered PEC water splitting can convert the energy to the chemical energy of hydrogen which can be stored and transferred, and can fully use the water resource of ocean. [ 23–25 ] Considering the situation without sunlight, an extra way to purely store the blue energy is also highly required for the full collection of energy. Battery or super capacitor are widely used to store the generated electricity, [ 30,31 ] and their conversion efficiencies can be significantly improved with the assistance of power management circuit.…”

Section: Introductionmentioning

confidence: 99%

Blue Energy Collection toward All‐Hours Self‐Powered Chemical Energy Conversion

Zhai

Wen

Chen

et al. 2020

Advanced Energy Materials

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The conversion and transmission of blue energy in the ocean are critical issues. By employing triboelectric nanogenerators (TENGs), blue energy can be harvested but the corresponding electricity transmission and storage are still great challenges. In this work, an automatic high‐efficiency self‐powered energy collection and conversion system is proposed that converts blue energy to chemical energy. A gear‐driven unidirectional acceleration TENG is designed to convert disordered and low‐frequency water wave energy to low voltage and high current DC output. The output bias from the TENG can be used to drive a Ti–Fe2O3/FeNiOOH based photoelectrochemical cell under sunlight to produce hydrogen. Moreover, under the situation without sunlight, the self‐powered system can be automatically switched to another working state to charge a Co3O4 based lithium‐ion battery. The hydrogen production rate reaches to 4.65 µL min‐1 under sunlight at the rotation speed of 120 rpm. The conversion efficiency of the whole system is calculated to be 2.29%. The system triggered by photoswitches can automatically switch between two working states with or without sunlight and convert the blue energy to either hydrogen energy or battery energy for easy storage and transmission, which widens the future applications for blue energy.

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“…The excessive use of fossil fuels has led to an increasing energy crisis and severe climate warming, thus directing tremendous attention to the development of renewable and green energy technologies . Water splitting is a fast and cost‐effective strategy for converting and storing intermittent solar and wind energy in the form of hydrogen and oxygen chemical fuels . Although significant progress has been made in the study of nonprecious transition metal sulfides, phosphides, and nitride electrocatalysts, self‐driven electrocatalytic water‐splitting devices are directly powered by solar cells or rechargeable batteries .…”

Section: Introductionmentioning

confidence: 99%

Fully Solar‐Powered Uninterrupted Overall Water‐Splitting Systems

Zhang

Tang

et al. 2019

Adv Funct Materials

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Extensive research efforts have been recently devoted to the development of self-driven electrocatalytic water-splitting systems to generate clean hydrogen chemical fuels. Currently, self-driven electrocatalytic water-splitting devices are powered by solar cells, which operate intermittently, or by aqueous batteries, which deliver stored electric power, leading to high operating costs and environmental pollution. Thus, a fully solar-powered uninterrupted overall water-splitting system is greatly desirable. Here, the solar cells, stable output voltage of 1.75 V Ni-Zn batteries, and high efficiency zinc-nickel-cobalt phosphide electrocatalysts are successfully assembled together to create a 24 h overall water-splitting system. Specifically, the silicon-based solar cells enable the charging of aqueous Ni-Zn batteries for energy storage as well as providing sufficient energy for electrocatalysis throughout the day; in addition, the highcapacity Ni-Zn batteries offer a steady output voltage for overall water-splitting at night. Such an uninterrupted solar-to-hydrogen system opens up exciting opportunities for the development and applications of renewable energy.

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Wind energy harvester based on coaxial rotatory freestanding triboelectric nanogenerators for self-powered water splitting

Cited by 106 publications

References 40 publications

Polymer Microfibers Incorporated with Silver Nanoparticles: a New Platform for Optical Sensing

Polymer Microfibers Incorporated with Silver Nanoparticles: a New Platform for Optical Sensing

Blue Energy Collection toward All‐Hours Self‐Powered Chemical Energy Conversion

Fully Solar‐Powered Uninterrupted Overall Water‐Splitting Systems

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