Nanoporous carbon architectures for iontronics: Ion-based computing, logic circuits and biointerfacing

Zhang, En; Galle, Lydia; Lochmann, Stefanie; Grothe, Julia; Kaskel, Stefan

doi:10.1016/j.cej.2021.130431

Cited by 10 publications

(10 citation statements)

References 76 publications

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“…[ 6 ] Emergence of CAPodes expands the single energy storage function of supercapacitors into an entirely new field, and CAPodes will play an important role in grid stabilization, signal propagation and logic operation. [ 7 ] Of course, as a kind of newly emerged concept device, the research of CAPodes is just beginning; and relevant studies need to be carried out, such as improving the device performance, reducing the cost as well as simplifying the manufacturing process, designing more types of CAPodes, and exploring the potential applications.…”

Section: Introductionmentioning

confidence: 99%

A Pseudocapacitor Diode Based on Ion‐Selective Surface Redox Effect

Tang

Tan

et al. 2023

Advanced Materials

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Section: Introductionmentioning

confidence: 99%

A Pseudocapacitor Diode Based on Ion‐Selective Surface Redox Effect

Tang

Tan

et al. 2023

Advanced Materials

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“…[1,2] Though impressive achievements have recently been made, bidirectional communication between Similar to the semiconductor diode in electronic circuits, ionic diode is a basic building block that can complete the information transmission, processing, and feedback. [10][11][12] To date, several ionic diodes with different working mechanisms and/or device structures are developed. [13][14][15][16][17][18] Among them, supercapacitor-based ionic diode (CAPode) is the most promising competitor with high rectification ratio, long lifespan, and superior durability.…”

Section: Introductionmentioning

confidence: 99%

A Biocompatible Supercapacitor Diode with Enhanced Rectification Capability toward Ion/Electron‐Coupling Logic Operations

Liang

Qiu

et al. 2023

Advanced Materials

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The main challenge faced by the forthcoming human-computer interaction is that biological systems and electronic devices adopt two different information carriers, i.e., ions and electrons, respectively. To bridge the gap between these two systems, developing ion/electron-coupling devices for logic operation is a feasible and effective approach. Accordingly, herein a supercapacitor-based ionic diode (CAPode) that takes electrochemically amorphized molybdenum oxide as the working electrode is developed. Benefiting from its unique size and charge dual ion-sieving effects, the molybdenum oxide electrode exhibits a record-high rectification ratio of 136, which is over 10 times higher than those of reported systems. It also delivers an ultrahigh specific capacitance of 448 F g −1 and an excellent cycling stability of up to 20 000 cycles, greatly outperforming those of previous works. These excellent rectification capability and electrochemical performances allow the as-built CAPode to work well in AND and OR logic gates, validating great potential in ion/electron-coupling logic operations. More attractively, the superior biocompatibilities of molybdenum oxide and relevant constituent materials enable the constructed CAPode to be applied as bioelectronics without regard to biosafety, paving a new way toward forthcoming human-computer interaction.

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“…Iontronics [1][2][3] have drawn great interest in recent years for their promising applications in broad fields, including wearable electronics, [4][5][6] biointerfacing, [7][8][9] and flexible energy devices. [10][11][12] In pursuit of intellectualized performance under various application conditions, intensive efforts have been devoted to endowing the iontronic materials with switchable ionic conductivity to realize the stimuli responsiveness of iontronic devices.…”

Section: Introductionmentioning

confidence: 99%

Unusual switching of ionic conductivity in ionogels enabled by water‐induced phase separation

et al. 2022

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Developing smart iontronic materials is highly desired for eradicating the widely occurring potential short-circuit hazard and subsequent safety problems caused by high ambient humidity. In this work, a humidity-responsive ionogel (HRIG) based on a poly(benzyl methacrylate) matrix swollen by hydrophobic ionic liquid and hygroscopic lithium salt is reported. The HRIG exhibits an anomalous decrease in ionic conductivity upon hydration by increased humidity, totally differing from traditional ionic conductors, which are usually more conductive due to the plasticizing effect of water molecules. This unique ionogel shows a dramatic decrease in ionic conductivity (as much as 10 2 ) when exposed to humidity. The conductive pathway within the HRIG would be shut down spontaneously above a critical relative humidity due to water-induced phase separation. Moreover, this transition can be perfectly reversed when the ambient humidity drops. A humidity-responsive smart supercapacitor that can be switched on and off by capturing humidity changes is designed for demonstration. It is believed that such unusual HRIG material will provide new insights into the development and applications of smart iontronics.

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Nanoporous carbon architectures for iontronics: Ion-based computing, logic circuits and biointerfacing

Cited by 10 publications

References 76 publications

A Pseudocapacitor Diode Based on Ion‐Selective Surface Redox Effect

A Pseudocapacitor Diode Based on Ion‐Selective Surface Redox Effect

A Biocompatible Supercapacitor Diode with Enhanced Rectification Capability toward Ion/Electron‐Coupling Logic Operations

Unusual switching of ionic conductivity in ionogels enabled by water‐induced phase separation

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