Article
Thermodynamics
Xiuliang Liu, Qifan Zou, Ronggui Yang
Summary: In this paper, a theoretical model for bubble nucleation in liquid film boiling is developed, considering transient heat conduction, evaporation at the liquid-vapor interface, and superheat requirement for bubble nucleus stability. The study establishes the ONB criterion and active microcavity size range, comparing them with pool and flow boiling.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Hui-Chung Cheng, Ho-Ching Lin, Ping-Hei Chen
Summary: The study investigated the effects of charged surfactants in electrolytic pool boiling on heat transfer performance, finding an optimal current for enhancing the heat transfer coefficient. Analysis of bubble behaviors using high-speed images revealed that using charged surfactants in electrolytic boiling significantly increased the heat transfer coefficient due to the number of bubble nucleation sites and bubble departure frequency.
APPLIED THERMAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Pengkun Li, Xiuliang Liu, Qifan Zou, Xinlei Zhang, Ronggui Yang
Summary: High-power electronic devices present challenges and opportunities for two-phase cooling technologies. Capillary-driven liquid film boiling, combining capillary evaporation and nucleate boiling, is a promising cooling method. However, the mechanism of liquid film boiling is not well understood. In this study, a model is developed to predict the incipience of liquid film boiling, and experiments validate the model's effectiveness.
MATERIALS TODAY PHYSICS
(2023)
Article
Thermodynamics
Orr Avni, Tali Bar-Kohany, Eran Sher
Summary: For many applications, a high-quality liquid spray is crucial. Flash boiling atomization is a promising method to generate such fine sprays. This study proposes and theoretically examines a novel method that employs flash boiling mechanism to generate spray. By subjecting the liquid to intense heating and inducing homogeneous nucleation, the liquid is disintegrated into a fine spray.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Thermodynamics
Jiangyou Long, Junwei Wu, Yujun Zhou, Xiaozhu Xie
Summary: This study investigates the capillary-fed evaporation/boiling process and finds that the critical heat flux decreases by 51.8% after five boiling cycles using a grooved wick fabricated by ultrafast laser micromachining. Analysis reveals that the decrease in critical heat flux is caused by the degradation of hydrophilicity in the evaporator. The study also demonstrates that nanoporous surfaces can effectively mitigate the undesired hydrophilicity degradation.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Chemistry, Physical
Vladimir G. Baidakov, Sergey P. Protsenko, Vasiliy M. Bryukhanov
Summary: The nucleation of bubbles in a stretched Lennard-Jones liquid between two flat smooth solid walls was investigated using molecular dynamics. The centers of bubbles are mainly located at a distance of (1.5-3) molecular diameters from the walls, with the nucleation rate near the walls being two orders of magnitude higher than in a homogeneous liquid. The liquid boiling-up in the presence of smooth wettable walls proceeds by the mechanism of homogeneous nucleation, regardless of the bubble formation location.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Engineering, Chemical
Liril D. Silvi, Dinesh K. Chandraker, Sumana Ghosh, Arup K. Das
Summary: This study utilizes numerical methods to investigate the dryout mechanism during flow boiling around a heated cylindrical rod under high working pressure, illustrating various mechanisms and their impacts visually.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Thermodynamics
Xiao Yuan, Yanping Du, Chao Wang
Summary: High heat flux dissipation in pool boiling heat transfer can be achieved by controlling the bubble escape and liquid replenishment paths. A copper foam with a wettability gradient is designed to generate separate liquid-vapor pathways for pool boiling enhancement. Experimental results show that the copper foam with different wettability gradient influences the liquid replenishment and bubble escape flow. Comparing different copper foam structures, the super-hydrophilic top with superhydrophobic bottom (SHPiT-SHPoB) and the super-hydrophobic top with super-hydrophilic bottom (SHPoT-SHPiB) structures achieve higher critical heat flux and maximum heat transfer coefficient. The study establishes bubble escape forms and liquid replenishment models, providing detailed explanations for pool boiling enhancement.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
S. Y. Guan, Z. H. Zhang, R. Wu, X. K. Gu, C. Y. Zhao
Summary: The impacts of nano-porous structures on boiling heat transfer characteristics are revealed through theoretical and modeling analysis. The results show that the boiling inception time is proportional to the void volume to solid surface area ratio, and the critical heat flux is a power law function of pore size. Molecular dynamics simulations further validate the theoretical analysis, showing a power law relation between boiling inception time and void volume to solid surface area ratio, and an exponent of 1.232 in the power law relation between critical heat flux and pore size.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Multidisciplinary
Hyunggon Park, S. Farzad Ahmadi, Thomas Foulkes, Jonathan Boreyko
Summary: Surface with micro/nano-structures can enhance the critical heat flux of nucleate boiling by increasing liquid phase wickability, and removing surface bubbles at smaller sizes is an alternative strategy. In this study, a rationally designed micro-structured surface is fabricated to enable coalescence-induced departure of microscopic vapor bubbles during pool boiling of water at significantly smaller sizes than single-bubble buoyant departure.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Thermodynamics
Pranjal Agrawal, Susmita Dash
Summary: In the transitional boiling regime, droplets exhibit trampolining behavior where the height of bounce increases with decreasing volume. The dynamics of the droplet result in a non-monotonic variation in the evaporation time with substrate temperature.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Xuhai Pan, Lina He, Zhenglun Tian, Ruyue Zhang, Min Hua, Yu Fang, Juncheng Jiang
Summary: This article investigates the mechanism by which impurities in n-propanol and ethylene glycol influence the explosion boiling of superheated liquids. Experimental results show that short chain alcohol impurities cause significant changes in pressure response, temperature response, and bubble nucleation evolution in storage tanks. These impurities also lead to changes in the two-phase flow evolution behavior during superheated boiling, promoting the explosive boiling of the superheated liquid. The density of bubbles increases, affecting the pressure and temperature responses during the release process inside the tank.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Kai Wang, Chun-Yen Li, Marco Pellegrini, Nejdet Erkan, Koji Okamoto
Summary: This study proposed an extended numerical model based on the Monte Carlo method to predict CHF for flow boiling, taking into account bubble generation, growth, and departure, and assuming CHF based on the percolative nature of bubble interactions. Numerical simulation results showed good agreement with experimental results, indicating the potential of this model for predicting CHF in various working conditions.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Mechanics
Hideyuki Sugioka, Katsuaki Murata, Yuki Arai
Summary: In this study, a solid object launcher that utilizes explosive vaporization in water is proposed. By using electric discharge in a trapezoid-shaped chamber, centimeter-scale objects such as paper and paper airplanes can be launched with significant velocities and angles. Vertical launching experiments were also conducted to understand the mechanism of solid launching phenomena. Water-repellent treatment of the solid surface was found to be crucial for successful launching. This technology has potential applications in hybrid manufacturing and bird deterrence in orchards.
Article
Engineering, Chemical
Jiajun Wang, Gangtao Liang
Summary: In this paper, the pool boiling on a two-tier hierarchical structured surface is investigated using the three-dimensional LB method. Different scales of two-tier pillar structures, namely primary and secondary pillars, are designed. It is found that on the hierarchical surface with upward-oriented secondary pillars, bubble departure is promoted and heat transfer is improved by increasing the primary pillar spacing and enhancing surface wettability. However, increasing the height of secondary pillar enhances capillary wicking but also increases flow resistance. On the hierarchical surface with laterally-oriented secondary pillars, heat transfer is limited by large flow resistance. Increasing the primary pillar spacing can moderate the impact of flow resistance and enhance heat flux. The structured surface with upward-oriented secondary pillars shows better boiling performance than other structured surfaces when considering the effect of wall temperature.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Physics, Applied
Wenjiang Zhou, Yu Dai, Junjie Zhang, Bai Song, Te-Huan Liu, Ronggui Yang
Summary: In this study, the phonon thermal conductivity and mean-free-path spectrum of high-temperature phase SnSe (beta-SnSe) were investigated using the Boltzmann transport equation and ab initio approaches. The results showed a significant reduction in thermal conductivity when considering four-phonon scatterings. It was also suggested that nanostructure engineering could be used to reduce thermal conductivity without sacrificing the power factor.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Dezhao Huang, Qiangsheng Sun, Zeyu Liu, Shen Xu, Ronggui Yang, Yanan Yue
Summary: The authors developed a tip-enhanced Raman thermometry approach to study thermal transport at nanoscale hotspots and predicted the phonon mean free path through a combination of experiments and simulations.
Article
Chemistry, Multidisciplinary
Lu Chen, Te-Huan Liu, Xiangze Wang, Yandong Wang, Xiwei Cui, Qingwei Yan, Le Lv, Junfeng Ying, Jingyao Gao, Meng Han, Jinhong Yu, Chengyi Song, Jinwei Gao, Rong Sun, Chen Xue, Nan Jiang, Tao Deng, Kazuhito Nishimura, Ronggui Yang, Cheng-Te Lin, Wen Dai
Summary: The rapid development of highly integrated microelectronic devices leads to a demand for advanced thermally conductive adhesives (TCAs) to solve the issue of heat transfer. Metal nanoflakes with a natural 2D structure and isotropic thermal conductivity are promising fillers for high-performance TCAs. However, achieving TCAs with thermal conductivity over 10 W m(-1) K-1 at filler content below 30 vol% remains challenging. This study introduces a top-down strategy to prepare 2D Ag nanoflakes with an intrinsic thermal conductivity of 398.2 W m(-1) K-1, reaching 93% of the theoretical value, and demonstrates their superior heat transfer efficiency in microelectronic cooling performance evaluations.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Zeyu Xiang, Yu Pang, Xin Qian, Ronggui Yang
Summary: Characterizing spatially varying thermal conductivities is crucial for understanding the structure-property relation in various thermal functional materials. This study presents a machine-learning-based method for directly extracting depth-dependent thermal conductivity profiles from pump-probe phase signals. The proposed method demonstrates excellent performance in accurately reproducing different types of thermal conductivity profiles and shows potential for depth-dependent thermal property mapping.
APPLIED PHYSICS LETTERS
(2023)
Review
Chemistry, Physical
Changkang Du, Xinpeng Zhao, Xin Qian, Congliang Huang, Ronggui Yang
Summary: Solar evaporation technology, which is free of fossil fuel consumption and carbon dioxide emission, has attracted significant research interest in recent years. Although many systems have achieved high evaporation efficiency, the upper limit of this efficiency is not bounded by 100%. In this article, the thermodynamic limit of solar evaporation efficiency is analyzed, and the challenges and potential improvements for heat-localized solar evaporation and their hybrid systems are discussed.
Article
Chemistry, Physical
Zesheng Yang, Muzhang Huang, Ronggui Yang, Jingbo Sun, Xuefei Zhang, Wei Pan, Chunlei Wan
Summary: The high operation temperature of next generation gas turbines poses a challenge for the durability of metallic turbine blades due to near-infrared (NIR) thermal radiation. Although thermal barrier coatings (TBCs) are used for thermal insulation, they are transparent to NIR radiation. This study introduces an NIR metamaterial consisting of Gd2Zr2O7 ceramic matrix with dispersed Pt nanoparticles, which achieves a broadband NIR extinction and effectively shields radiative heat transfer.
Article
Materials Science, Multidisciplinary
Tianbo Lu, Boyi Wang, Guodong Li, Jiawei Yang, Xiaofan Zhang, Nan Chen, Te-Huan Liu, Ronggui Yang, Pingjuan Niu, Zongxiang Kan, Hangtian Zhu, Huaizhou Zhao
Summary: In order to meet the increasing demand for thermoelectric cooling in high heat flux systems, it is necessary to construct high-performance thermoelectric devices with materials that have both high thermoelectric properties and mechanical strength. However, improving the thermoelectric and mechanical properties simultaneously is challenging due to the anisotropic thermal and electrical transports in the layered structure of Bi2Te3. In this study, a hot extrusion (HE) technique was developed to manipulate the texture ordering in Bi2Te3 material, resulting in significant improvements in thermoelectric and mechanical properties.
MATERIALS TODAY PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Yiteng Tu, Xinyu Tan, Guiguang Qi, Xiongbo Yang, Xiqiao Ouyang, Wensheng Yan, Weiwei Hu, Jialin Geng, Ronggui Yang
Summary: Daytime radiative cooling, a passive cooling technology, has attracted significant interest due to its zero energy consumption and zero greenhouse gas emissions. We propose a spectrally selective coating based on tri-cyclodecane dimethanol diacrylate (DCPDA) monomer, which can be fabricated with simple and scalable methods. The coated glass exhibits high transmissivity in the visible wavelengths and high thermal emissivity in the atmospheric window. Outdoor cooling tests demonstrate the sub-ambient cooling capability of the coating applied to aluminum sheets, making it a promising solution for transparent radiative cooling applications.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Yuchi Chen, Qiangqiang Huang, Te-Huan Liu, Xin Qian, Ronggui Yang
Summary: This study used molecular dynamics simulations to predict the thermopower of the redox pairs Fe(CN)6(3-)/Fe(CN)6(4-) and Fe3+/Fe2+, and found excellent agreement with experimental values. It was discovered that the thermopower of Fe3+/Fe2+ can be increased from 1.7+/-0.4 mV/K to 3.8+/-0.5 mV/K by increasing the acetone to water fraction. This increase was attributed to the intercalation of acetone molecules into the first solvation shell of Fe2+ at high acetone fractions.
Article
Thermodynamics
Qiangqiang Huang, Yuchi Chen, Xin Qian, Ronggui Yang
Summary: The utilization of low-grade heat sources has been a long-standing challenge due to the limited temperature difference. This study shows that coupling a thermally regenerative electrochemically cycled flow battery with radiative coolers can enhance the energy density and generate additional operating temperature difference. The model also captures the effects of mass transfer and electrochemical kinetics on power density and efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Jing Wu, Hao Zhang, Tianyu Wang, Xin Qian, Bai Song, Te-Huan Liu, Ronggui Yang
Summary: In this study, the pressure-dependent thermal conductivity of isotope-engineered cubic boron nitride (c-BN) was investigated using ab initio calculations and the Boltzmann transport equation. It was found that the thermal conductivity of isotopically mixed c-BN is less sensitive to pressure variations compared to isotope-enriched c-BN. The results provide a fundamental understanding of pressure-dependent phonon transport in c-BN from a microscopic perspective.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Hao Zhang, Yongsheng Ji, Yonggang Yao, Long Qie, Zhiheng Cheng, Zhihao Ma, Xin Qian, Ronggui Yang, Chenghang Li, Yaqing Guo, Yifei Yuan, Haoyu Xiao, Haiping Yang, Jing Ma, Jun Lu, Yunhui Huang
Summary: Battery recycling is becoming increasingly important due to the widespread use of Li-ion batteries. Direct recycling methods have advantages of high-purity material recovery and lower environmental impact, but most methods are complex and have low yield. This study presents a transient recycling approach with high efficiency for battery materials, achieving a recovery ratio of over 97% and intact metal foil of nearly 100% through shock-type or rolled-over heating.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Weiping Xu, Sihong Gong, Ningsheng Wang, Wenbo Zhao, Hongle Yin, Ronggui Yang, Xiaobo Yin, Gang Tan
Summary: Radiative cooling technology, using a membrane with spectrum-selective optical properties, has been shown to effectively reduce temperatures in grain storage warehouses. Field testing in Hangzhou, China demonstrated temperature reductions of up to 9.8°C and 4°C in headspace and grain respectively. By creating a building model, it was found that significant electricity savings and temperature reductions can be achieved without the use of air conditioning.
Article
Chemistry, Multidisciplinary
Xinpeng Zhao, Ablimit Aili, Dongliang Zhao, Dikai Xu, Xiaobo Yin, Ronggui Yang
Summary: Dynamic control of sunlight entering a building through switchable glazing panels can effectively reduce building energy consumption. The dual-mode glazing panel demonstrated in this study achieved significant cooling and heating performance, leading to potential energy savings in office buildings.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Review
Chemistry, Physical
Fuliang Nie, Fengwu Bai, Zhifeng Wang, Xiaobo Li, Ronggui Yang
Summary: This paper provides an in-depth review of various solid particle solar receiver (SPSR) technologies, including solid particle selection, optimization of receiver system structures, particle flow characteristics, and heat transfer characteristics. By comparing multiple parameters, the technical drawbacks, large-scale development prospects, and potential optimization strategies of various SPSR designs are highlighted.
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.