Ballistic energy conversion: physical modeling and optical characterization

Xie, Yanbo; Bos, D. Plass Oude; Meulen, Jan van der; Versluis, Michel; Berg, Albert van den; Eijkel, Jan C.T.

doi:10.1016/j.nanoen.2016.10.010

Cited by 10 publications

(13 citation statements)

References 36 publications

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“…A single conical nanochannel embedded within a polyethylene terephthalate (PET) membrane is first prepared by the ion track etching technique (Supporting Information, Figure S1). − The diameters of the large opening side and the small opening side are approximately 670 and 23 nm, respectively. The etching process will create mobile carboxyl groups (−COOH).…”

Section: Resultsmentioning

confidence: 99%

Engineered Artificial Nanochannels for Nitrite Ion Harmless Conversion

Qian

Zhang

Kong

et al. 2018

ACS Appl. Mater. Interfaces

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Inspired by the delicate functions of living organisms to transport or transform nitrite ions (NO), a bioinspired smart nanochannel that can realize harmless conversion of NO into N is developed by immobilizing a NO-responsive functional molecule, p-phenylenediamine, onto a single conical polyethylene terephthalate nanochannel. Subsequently, the aromatic primary amine groups could be triggered to transform into a phenyldiazonium molecule based on the acid-activated NO-binding process. The nanochannel exhibits specific selectivity and highly ultratrace recognition of NO. Fascinatingly, the transformed phenyldiazonium molecules could be triggered to generate phenol groups and release N by ultraviolet light activation, achieving NO harmless conversion. This system could provide inspiration to construct artificial nanofluidic devices for ion-sensing and nitrogen cycle fields.

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Section: Resultsmentioning

confidence: 99%

Engineered Artificial Nanochannels for Nitrite Ion Harmless Conversion

Qian

Zhang

Kong

et al. 2018

ACS Appl. Mater. Interfaces

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“…[ 48 ] In the meantime, the double electric layer was formed at the interface of the silver and PVA/PEI hydrogel got polarized, leading to the accumulation of positive charges within the metal wire. [ 49 ] To realize potential balance, electrons flowed from the metal wires to the ground through an external circuit until all electrostatic charges within the PDMS layer were shielded, at which point the TENG reached its maximum separation state. If the skin approached the PDMS again, the entire process was reversed, and the electrons were transferred from the ground to the silver/PVA/PEI hydrogel interface through the external load.…”

Section: Self‐powered Working Mechanism Of Hydrogel‐based Artificial ...mentioning

confidence: 99%

Recent Advances in Hydrogel‐Based Self‐Powered Artificial Skins for Human–Machine Interfaces

Wang

Zhu

Tan

et al. 2023

Advanced Intelligent Systems

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With the rapid development of artificial intelligence, human‐machine interfaces (HMI) are continuing to affect human lifestyles. Artificial skin is a new type of HMI sensor that enables a seamless connection between human and electronic devices. Currently, artificial skin is mostly prepared from rigid materials, which lack flexibility and scalability, thus impeding the development of HMI. Hydrogel, consisting of 3D polymer network and water is similar to human tissues and is therefore an excellent candidate for artificial skin in HMI. The conventional HMI of hydrogel‐based artificial skin includes touch pad and machine control based on capacitive or resistive sensors. However, the energy supply of HMI depends on battery which requires frequent recharging and replacement. Therefore, hydrogel‐based self‐powered artificial skin is expected to become primary interaction medium for the forthcoming generation of HMI. This article reviews the development of hydrogel‐based self‐powered artificial skin for HMI. Various power supply mechanisms of hydrogel‐based artificial skin are discussed. The materials for self‐powered artificial skin are introduced, including ionic hydrogel, ionic‐liquid hydrogel, metal‐based hydrogel, carbon‐based and MXene‐based hydrogel, and conductive polymer‐based hydrogel. The application of the hydrogel‐based self‐powered artificial skin in HMI is also reviewed. Finally, the challenges and development trends in HMI are outlined.

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“…Considering an ideal flow of nonviscous fluids (Δℎ 𝑓 ∼ 0), we have Bernoulli's law enables to define an effective pressure, 𝑝 𝑒𝑓𝑓 , that converted to kinetic energy of fluids [74], by…”

Section: Energy Dissipation In Single-phase Flowmentioning

confidence: 99%

“…Considering an ideal flow of nonviscous fluids (

\Delta {h_f}\sim 0

), we have Bernoulli's law enables to define an effective pressure,

{p_{eff}}

, that converted to kinetic energy of fluids [74], by

{p_{eff}} = \frac{{\rho {{\overline {{v_v}} }^2}}}{2}\;

, with a flow rate of

Q\; = \;\pi {a^2} \cdot \overline {{v_v}}

for a certain flow in a channel with radius of a .…”

Section: Hydrodynamicsmentioning

confidence: 99%

“…An alternative way of harvesting the electrokinetic energy is by shooting charged microdroplets toward a metal target. As illustrated in a previous study [74], there are three major energy dissipations when shooting water droplets out of a micropore, including the viscous energy loss when squeezing the water through the pore, surface tension when forming a cylindrical jet and air frictions when flying droplets in the air.…”

Section: Hydrodynamicsmentioning

confidence: 99%

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Energy harvesting from water streaming at charged surface

Xu,

Yan,

Xie

2023

Electrophoresis

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Water flowing at a charged surface may produce electricity, known as streaming current/potentials, which may be traced back to the 19th century. However, due to the low gained power and efficiencies, the energy conversion from streaming current was far from usable. The emergence of micro/nanofluidic technology and nanomaterials significantly increases the power (density) and energy conversion efficiency. In this review, we conclude the fundamentals and recent progress in electrical double layers at the charged surface. We estimate the generated power by hydrodynamic energy dissipation in multi‐scaling flows considering the viscous systems with slipping boundary and inertia systems. Then, we review the coupling of volume flow and current flow by the Onsager relation, as well as the figure of merits and efficiency. We summarize the state‐of‐the‐art of electrokinetic energy conversions, including critical performance metrics such as efficiencies, power densities, and generated voltages in various systems. We discuss the advantages and possible constraints by the figure of merits, including single‐phase flow and flying droplets.

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Ballistic energy conversion: physical modeling and optical characterization

Cited by 10 publications

References 36 publications

Engineered Artificial Nanochannels for Nitrite Ion Harmless Conversion

Engineered Artificial Nanochannels for Nitrite Ion Harmless Conversion

Recent Advances in Hydrogel‐Based Self‐Powered Artificial Skins for Human–Machine Interfaces

Energy harvesting from water streaming at charged surface

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