Nano Today, Journal Year: 2025, Volume and Issue: 61, P. 102631 - 102631
Published: Jan. 18, 2025
Language: Английский
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(12)
Published: Dec. 6, 2023
Abstract As a chemical product with rapidly expanding demand in the field of modern energy and environmental applications, hydrogen peroxide (H 2 O ) has garnered widespread attention. However, existing industrial production H is plagued by high consumption, harmful waste emission, severe safety issues, making it difficult to satisfy environmental/economic concept. Artificial photosynthesis offers viable strategy for green sustainable since uses sunlight as an source initiate reaction oxygen water produce . Among various photocatalysts, covalent organic frameworks (COFs), featuring highly ordered skeletons well‐defined active sites, have emerged promising photocatalysts production. This review presents nascent burgeoning area photocatalytic based on COFs. First, brief overview technology provided, followed detailed introduction principles evaluation generation. Subsequently, latest research progress judicious design COFs expounded, particular emphasis manipulating electronic structures redox sites. Finally, outlook challenges future opportunities proposed, hope stimulating further explorations novel molecular‐designed photosynthesis.
Language: Английский
Citations
93
Nano Energy, Journal Year: 2023, Volume and Issue: 120, P. 109155 - 109155
Published: Dec. 2, 2023
Language: Английский
Citations
60
Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 507, P. 215760 - 215760
Published: March 5, 2024
Language: Английский
Citations
32
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(20)
Published: March 21, 2024
Abstract Memristors are essential components of neuromorphic systems that mimic the synaptic plasticity observed in biological neurons. In this study, a novel approach employing one‐dimensional covalent organic framework (1D COF) films was explored to enhance performance memristors. The unique structural and electronic properties two 1D COF (COF‐4,4′‐methylenedianiline (MDA) COF‐4,4′‐oxydianiline (ODA)) offer advantages for multilevel resistive switching, which is key feature computing applications. By further introducing TiO 2 layer on COF‐ODA film, built‐in electric field between COF‐TiO interfaces could be generated, demonstrating feasibility utilizing COFs as platform constructing memristors with tunable states. nanochannels these structures contributed efficient modulation electrical conductance, enabling precise control over weights circuits. This study also investigated potential COF‐based achieve energy‐efficient high‐density memory devices.
Language: Английский
Citations
25
Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(22), P. 12738 - 12843
Published: Nov. 5, 2024
The quest to imbue machines with intelligence akin that of humans, through the development adaptable neuromorphic devices and creation artificial neural systems, has long stood as a pivotal goal in both scientific inquiry industrial advancement. Recent advancements flexible electronics primarily rely on nanomaterials polymers owing their inherent uniformity, superior mechanical electrical capabilities, versatile functionalities. However, this field is still its nascent stage, necessitating continuous efforts materials innovation device/system design. Therefore, it imperative conduct an extensive comprehensive analysis summarize current progress. This review highlights applications neuromorphics, involving inorganic (zero-/one-/two-dimensional, heterostructure), carbon-based such carbon nanotubes (CNTs) graphene, polymers. Additionally, comparison summary structural compositions, design strategies, key performance, significant these are provided. Furthermore, challenges future directions pertaining materials/devices/systems associated neuromorphics also addressed. aim shed light rapidly growing attract experts from diverse disciplines (e.g., electronics, science, neurobiology), foster further for accelerated development.
Language: Английский
Citations
20
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149347 - 149347
Published: Feb. 13, 2024
Language: Английский
Citations
18
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(5), P. 6176 - 6188
Published: Jan. 25, 2024
Recent advancements in reservoir computing (RC) research have created a demand for analogue devices with dynamics that can facilitate the physical implementation of reservoirs, promising faster information processing while consuming less energy and occupying smaller area footprint. Studies demonstrated dynamic memristors, nonlinear short-term memory dynamics, are excellent candidates as information-processing or reservoirs temporal classification prediction tasks. Previous implementations relied on nominally identical memristors applied same transformation to input data, which is not enough achieve rich state space. To address this limitation, researchers either diversified data encoding across multiple harnessed stochastic device-to-device variability among memristors. However, approach requires additional preprocessing steps leads synchronization issues. Instead, it preferable encode once pass them through layer consisting distinct dynamics. Here, we demonstrate ion-channel-based voltage-dependent be controllably predictively tuned voltage adjustment ion channel concentration exhibit diverse properties. We show, experiments simulations, layers constructed small number significantly higher predictive accuracies single encoding. found second-order dynamical system task, varied memristor experimentally achieved an impressive normalized mean square error 1.5 × 10–3, using only five Moreover, neural activity just three attained accuracy 96.5%. This work lays foundation next-generation RC systems exploit complex their building blocks increased signal capabilities.
Language: Английский
Citations
16
Applied Materials Today, Journal Year: 2024, Volume and Issue: 37, P. 102103 - 102103
Published: Feb. 15, 2024
Language: Английский
Citations
16
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(12)
Published: Feb. 1, 2024
Abstract Piezochromic materials that exhibit pressure‐dependent luminescence variations are attracting interest with wide potential applications in mechanical sensors, anticounterfeiting and storage devices. Crystalline porous (CPMs) have been widely studied piezochromism for highly tunable luminescence. Nevertheless, reversible high‐contrast emission response a pressure range is still challenging. Herein, the first example of hierarchical cage‐based πOF ( Cage ‐ 1 ) spring structure was synthesized by using aromatic chiral cages as building blocks. Its elastic properties evaluated based on bulk modulus (9.5 GPa) softer than most reported CPMs collapse point (20.0 significantly exceeds ever CPMs. As smart materials, displays linear achieves difference up to 154 nm. Pressure‐responsive limit 16 GPa, outperforming so far. Dedicated experiments density functional theory (DFT) calculations illustrate π–π interactions‐dominated controllable structural shrinkage porous‐spring‐structure‐mediated elasticity responsible outstanding piezofluorochromism.
Language: Английский
Citations
12
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
A material equivalent of a biosynapse is the key to neuromorphic architecture. Here we report self-forming labyrinthine Ag nanostructure activated with few pulses 0.5 V, width and interval set at 50 ms, current compliance (ICC) 400 nA, serving as active for highly stable device programmable volatility. Both conductance (G) its retention time (tr) in potentiated state are found vary linearly pulse number positive negative polarities, nonlinearity factors being noticeably small, ∼0.03 G during potentiation ∼0.08 depression. This was tested over 200 days, results were reproducible. Relying on high linearity, arithmetic operations involving counting integers realized using both often by mixing them feeding sequence. The observed outcomes based independently from tr accurate, deviations typically less than ∼1.5% expected results. Notably, way polarities mixed have an influence, random sequences producing relatively larger integer estimation. However, decreased higher ICC values, which promoted stronger filament formation percolation networks. Besides, values amplitude well, enabled calculation area under curve. Further, exhibited simulation-based image classification accuracy 94.95%, close ideal value (96.05%). Simulations utilizing finite element method showcased uniqueness morphology, giving rise field intensification along potential percolative paths.
Language: Английский
Citations
2