Article
Chemistry, Physical
Chengmin Bao, Huiyu Dan, Maoyi Zhang, Chuanbo Li, Zhong Lin Wang, Ya Yang
Summary: Hybridized nanogenerator composed of photovoltaic cell (PVC) and triboelectric nanogenerator (TENG) has been developed to scavenge both light and liquid-droplet energies simultaneously. The device exhibits good hybridized process and generates peak current and voltage of 16.96 mu A and 0.83 V. The maximum hybridized peak power is determined by TENG's pulselike output, while the maximum hybridized output energy is more affected by the continuous output signals of PVC.
Article
Chemistry, Physical
Fengjiao Huang, Peng Yang, Zhaoqi Liu, Dehong Yang, Ling Huang, Yuxiang Shi, Xinglin Tao, Yao Chen, Hexing Li, Xiangyu Chen, Zhenfeng Bian
Summary: In this paper, a novel hybrid nanogenerator is proposed based on a water-wave TENG and evaporation generator, which provides a more effective approach to utilize the energy from water. The hybrid nanogenerator solves the problem of insufficient output of water wave TENGs in calm water. The evaporation generator can continuously generate direct currents during the spontaneous evaporation of water, with high solar-vapor conversion efficiency and significant power density.
Article
Chemistry, Physical
Maoyi Zhang, Chengmin Bao, Chaosheng Hu, YongAn Huang, Ya Yang, Yewang Su
Summary: This article proposes a new design strategy to increase the current of the water droplet nanogenerator by simultaneously scavenging the mechanical energy of the liquid-solid contact and the deformation energy. A droplet-based triboelectric-piezoelectric hybridized nanogenerator (TPiHNG) with a cantilever beam structure is fabricated under this strategy, achieving more efficient scavenging of water droplet energy.
Article
Chemistry, Physical
Xin Liu, Jinyang Zhang, Xuejiao Wang, Shiquan Lin, Zhong Lin Wang
Summary: Contact electrification and charge transfer occur at a liquid-solid interface when continuous droplets slide on the dielectric surface. We investigated the accumulation of static charges on the surface of dielectric solid materials during this process from the perspective of liquid chemistry at the atomic level. Our experiments showed that the rate of charge accumulation on the solid surface in liquid-solid systems depends on the liquid chemistry, particularly the ionic diameters of cations, concentration, and pH. This suggests that chemical factors play a significant role in charge transfer at a liquid-solid interface.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Wei Xu, Xiuhan Li, Juergen Brugger, Xia Liu
Summary: Triboelectric nanogenerators show promise in efficient energy harvesting from droplets. A new optimized structure with an additional top electrode is proposed to increase energy conversion. The study analyzes the relationship between current waveform and droplet movement and discusses factors affecting the triboelectric output from droplet sliding. Demonstrations in droplet detection and microfluidic sensing provide valuable insights.
Article
Thermodynamics
Bartlomiej Toron, Krystian Mistewicz, Marcin Jesionek, Mateusz Koziol, Maciej Zubko, Danuta Stroz
Summary: In this paper, a compressed antimony selenoiodide (SbSeI)-based hybrid piezo/triboelectric nano-generator for mechanical energy harvesting is presented for the first time. The study found that the device generated a significantly higher voltage per surface area and force unit in comparison with similar literature reported values for other piezo/triboelectric generators.
Article
Chemistry, Physical
Abu Musa Abdullah, Muhtasim Ul Karim Sadaf, Farzana Tasnim, Horacio Vasquez, Karen Lozano, M. Jasim Uddin
Summary: Research has been conducted on the development of KNN-based energy films for energy harvesting and sensing applications, utilizing triboelectric and piezoelectric mechanisms to achieve high output voltage and current. The film is suitable for various types of deformations and can be integrated into multifunctional devices.
Article
Chemistry, Physical
Zhigang Qu, XiaoPeng Wang, MingKun Huang, ChuanXian Chen, Yang An, Wuliang Yin, Xingfei Li
Summary: With the worsening of environmental pollution and energy crisis, the exploration of clean and renewable energy has become vital for human survival and development. This paper proposes an eccentric-structured hybrid triboelectric-electromagnetic nanogenerator (EHNG) to extract low-frequency mechanical energy. The EHNG, comprising a triboelectric nanogenerator (TENG) and an electromagnetic generator (EMG), utilizes its unique eccentric structure to convert one-dimensional mechanical motion into electricity. Compared to separate energy harvesting units, the hybrid nanogenerator operates in a multi-mode, with improved electrical output performance and energy storage capabilities.
Article
Chemistry, Physical
Changjun Yang, Yamei Wang, Yan Wang, Zehui Zhao, Liwen Zhang, Huawei Chen
Summary: This study presents a stretchable hydrophobic triboelectric nanogenerator (SH-TENG) with excellent output and durability. The SH-TENG achieves synergistic enhancement of PTFE particles on both contact-separation and charge-transfer between droplet and triboelectric layer, resulting in increased transfer charge density and improved output performance.
Article
Chemistry, Physical
Tong Liu, Yang Zheng, Yunxiang Xu, Xianjie Liu, Chuanfei Wang, Liangmin Yu, Mats Fahlman, Xiaoyi Li, Petri Murto, Junwu Chen, Xiaofeng Xu
Summary: This study introduces a monolithic hybrid device by integrating high-performance semitransparent polymer solar cells (ST-PSCs) and liquid-solid triboelectric nanogenerators (TENGs). The hybrid device achieves high solar conversion efficiency and transparency, enabling efficient light-to-electricity conversion on sunny days and waterdrop energy conversion on rainy days. It also provides controlled ambient temperature and specific transmittance windows for plant growth, showcasing its potential in agricultural applications.
Article
Chemistry, Multidisciplinary
Cuiying Ye, Di Liu, Xiao Peng, Yang Jiang, Renwei Cheng, Chuan Ning, Feifan Sheng, Yihan Zhang, Kai Dong, Zhong Lin Wang
Summary: This study reports an all-fabric TENG with good breathability and hydrophobic self-repairing properties, showing significant improvement in water droplet energy conversion efficiency, which can be used in multifunctional wearable devices for raindrop energy harvesting.
Review
Chemistry, Physical
Kuan Cheng, Samuel Wallaert, Haleh Ardebili, Alamgir Karim
Summary: Flexible triboelectric nanogenerators (TENGs) are emerging as a portable solution for energy generation, capable of scavenging mechanical energy from motion. Incorporating low-dimensional carbon materials such as graphene and carbon nanotubes can enhance the output power and multifunctionality of TENGs.
Article
Chemistry, Physical
Ruihuan Xia, Ruijuan Zhang, Yang Jie, Wenyu Zhao, Xia Cao, Zhonglin Wang
Summary: A wheel-disk-shaped TENG based on natural pollution-free cotton has been developed to simultaneously harvest wind and water energy. This generator can produce a short-circuit current of 8.9 μA and an open-circuit voltage of 782 V at a rotation speed of 210 r/min, with a maximum peak power of 1.89 mW. It can be used as a self-powered system to power electronic devices and sense wind speed, providing a reliable solution for sustainable energy harvesting and environmental monitoring.
Article
Chemistry, Physical
Dan Yang, Yufeng Ni, Hao Su, Yuxiang Shi, Qiming Liu, Xiangyu Chen, Deyan He
Summary: This study introduces a hybrid energy system consisting of a solar cell and a self-healing/self-cleaning TENG to harvest both solar and raindrop energies, addressing the issue of reduced output performance of solar cells in rainy days. The self-healing and transparent TENG shows excellent output performance in rainy days and acts as a protective layer for the solar cell.
Article
Nanoscience & Nanotechnology
Hai-Tao Deng, Zhi-Yong Wang, Yi-Lin Wang, Dan-Liang Wen, Xiao-Sheng Zhang
Summary: In this study, an elastic hybrid triboelectric-electromagnetic microenergy harvester (EHTE) was developed, which integrates hybrid sensing and microenergy. By combining a triboelectric nanogenerator (TENG) and an electromagnetic nanogenerator (EMG), the EHTE achieved enhanced electrical output and demonstrated potential for microelectronics powering and wearable electronic applications.
MICROSYSTEMS & NANOENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Kelong Ao, Xiangyang Zhang, Renat R. Nazmutdinov, Di Wang, Jihong Shi, Xian Yue, Jianguo Sun, Wolfgang Schmickler, Walid A. Daoud
Summary: In this study, a novel CoFe@NC/WC catalyst is successfully synthesized and shows excellent electrochemical performance in liquid rechargeable Zn-air batteries. By combining with a bacterial cellulose nanofiber reinforced hydrogel electrolyte, wearable ZABs with foldability and rechargeability are demonstrated.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Linfeng Cai, Jianfeng Fan, Shengchang Ding, Dongyi He, Xiangliang Zeng, Rong Sun, Linlin Ren, Jianbin Xu, Xiaoliang Zeng
Summary: This study presents a simple design strategy to construct soft gels with high toughness and low thermal resistance. By precisely lengthening polymer strands and controlling aluminum content, a polydimethylsiloxane/aluminum composite gel with high stretchability, toughness, and thermal conductivity was successfully developed. The application potential of this composite gel in thermal interface materials for electronic devices was demonstrated.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Xiangkun Bo, Kindness A. Uyanga, Lingyun Wang, Irum Firdous, Jihong Shi, Weilu Li, Jasim M. Almardi, Muhammad Fahim, Fei Liu, Huanlin Lyu, Walid A. Daoud
Summary: This study proposes a method for utilizing stretchable materials in biomechanical energy harvesters with high triboelectric charge densities. By doping soy protein (SP) with hygroscopic calcium chloride (CaCl2), a tribolayer film with improved tribopositivity and stretchability is obtained. The optimal doping concentration of 0.30 mmol shows high resilience and generates a high electrical output. Additionally, the device exhibits high stability and durability and can harvest energy from finger and elbow movements.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xian Yue, Qiuhong Wang, Kelong Ao, Jihong Shi, Xiangyang Zhang, Hong Zhao, Kindness Uyanga, Yang Yang, Walid A. Daoud
Summary: A novel 3D bacterial cellulose network is used as a cathodic scaffold and combined with a bacterial cellulose hydrogel electrolyte to enable the use of aqueous zinc-ion batteries (ZIB) in wearable applications. Carbon nanofibers@Mn3O4 are obtained through carbonization of the bacterial cellulose network and pre-absorption of Mn salt. The assembled batteries demonstrate high capacity, coulombic efficiency, and capacity retention, revealing the potential of flexible ZIB in wearable applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Hong Zhao, Yaqi Ren, Xiangkun Bo, Liping Si, Zhaohuan Wei, Walid A. Daoud
Summary: This study investigates the use of a semi-solid electrolyte based on covalent organic framework (COF) for cobalt-free lithium-ion batteries. Results show that the use of this semi-solid electrolyte improves the cycling and C-rate performance of LNMO batteries.
SCRIPTA MATERIALIA
(2023)
Article
Engineering, Biomedical
Di Wang, Liwei Wang, Liming Zheng, Jiaxin Chen, Wei Zhang, Wei Zhou, Xiaobo Yang, Lifeng Jiang, Xiaoqiang Jin, Xiaohua Yu, Xin Liu, Heng Chen, Jianbin Xu
Summary: Invasion and metastasis are the leading causes of death in CRC patients. 5-Fluorouracil, a widely used chemotherapy drug for CRC, is inefficient in inhibiting tumor metastasis. MicroRNA-10b, a key regulator of chemotherapeutic resistance to 5-FU, induces early tumor metastases. A nanovehicle called GCD, which targets EGFR, is used to deliver chemotherapeutic and nucleotide drugs to distinct targets in CRC, effectively inhibiting the metastasis of EGFR-overexpressed CRC. The therapeutic effect of this combination is evaluated in tumor xenograft models derived from patients with CRC. Overall, this study provides insights into simultaneous inhibition of tumor growth and metastasis.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Chemistry, Physical
Haoyu Wang, Xin Xia, Jingjing Fu, Jianan Li, Chaojie Chen, Yuan Dai, Zhiyong Fan, Guobiao Hu, Yunlong Zi
Summary: This study proposes a self-powered wireless sensing system based on the triboelectric-discharge effect, which is compatible with various commercial sensors. It addresses the challenges of real-time sensing, power supply, and wireless signal transmission. The system is thin, flexible, and can be applied in temperature, pressure sensing, and other fields.
Article
Chemistry, Physical
Jihong Shi, Kelong Ao, Irum Firdous, Xiangyang Zhang, Muhammad Fahim, Lingyun Wang, Walid A. Daoud
Summary: Quantitative assessment of dielectric polarization plays a crucial role in determining whether to avoid or exploit this phenomenon due to its significance and universality. Although triboelectrification and electrostatic induction are directly related to dielectric polarization, there has been no previous work on connecting triboelectrification and dielectric polarization. To investigate the effect of dielectric polarization, a dielectric-adjustable nanogenerator is constructed and the interplay of dielectric constant, electrical output, and surface charge is thoroughly explored. The feasibility of using the dynamic behavior of surface charge to quantify dielectric polarization is systematically studied, considering the occurrence of self-polarization and polarization reversal during device operation, as well as the accumulation and decay times of surface charge, which significantly affect the device electrical output.
Article
Materials Science, Multidisciplinary
Jingjing Fu, Ziwu Song, Guoqiang Xu, Haoyu Wang, Xinyuan Li, Jiaqi Wang, Wenbo Ding, Wei Ren, Iek Man Lei, Yunlong Zi
Summary: Optical emission from gas molecules is a sensitive and selective gas detection solution. However, it is limited by its large size, energy consumption, and security risks. In this study, a self-powered gas sensing solution utilizing triboelectric discharge is proposed. By generating optical emissions through gas discharges, this system can recognize 60 gas atmospheres simultaneously with an accuracy of 97.67% using machine learning. With the assistance of mobile phones or closed-circuit televisions, it can be used as a portable detecting device and a component of the Internet of Things system.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Public, Environmental & Occupational Health
Xiaohan Cao, Yan Li, Yunlong Zi, Yuyan Zhu
Summary: This study examined the mortality rate in five countries/regions (Singapore, South Korea, Australia, New Zealand, and Hong Kong SAR) before and after shifting from zero-COVID policy to living-with-COVID policy. The results showed that under the living-with-COVID policy, the mortality rate increased in all countries/regions. It is suggested to implement anti-COVID policies to control excess mortality and achieve a mortality rate below 10%.
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Nanoscience & Nanotechnology
Jingjing Zhang, Xue Bai, Jianhui Zeng, Daoqing Liu, Zhenqiang Ye, Meng Han, Jian-Bin Xu, Yimin Yao, Rong Sun
Summary: Porous skeletons are essential in various applications due to their high surface area and enhanced mass adsorption and transport. Freeze-casting is commonly used to produce vertically aligned porous skeletons, but it results in anisotropic mass transfer and suboptimal mechanical properties. Inspired by intricate microstructures in botanical organisms, we have developed an advanced freeze-casting method to engineer a novel central-radial skeleton with enhanced capabilities. The central-radial architecture exhibits superior refinement and uniformity in its pore structure, leading to higher compression resilience, adsorption rate, and structural maintenance capacity. Extensive examination and simulations have definitively confirmed the exceptional characteristics of this unique structure, and its efficacy in chip cooling and photothermal conversion has been demonstrated. This pioneering microstructure preparation method holds immense potential for expanding its applicability and inspiring innovative concepts for novel structures.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xiangyang Zhang, Agnes Valencia, Zijun Deng, Jihong Shi, Kelong Ao, Walid A. Daoud
Summary: Constructing a three-phase interface is crucial for high-efficiency electro-chlorination degradation of organic wastewater. In this study, a nanopore-network-regulated Ru-MnO2 catalyst with three-phase catalytic interfaces was demonstrated for enhanced activation and transport processes. This catalyst showed a high generation of Cl2 and facilitated the transition of bubbles, leading to improved degradation efficiency and economic benefits.
Article
Chemistry, Multidisciplinary
Li Su, Zihan Wang, Chengyue Lu, Wenbo Ding, Yong Zhao, Yunlong Zi
Summary: In this work, a novel self-powered persistent triboelectrification-induced electroluminescence (TIEL) material has been created for the first time by incorporating long-afterglow phosphors SrAl2O4:Eu2+, Dy3+ (SAOED) in the material design. The blue-green transient TIEL derived from ZnS:Cu, Al serves as a reliable excitation source to trigger the persistent photoluminescence (PL) of SAOED. The SP-PTM exhibits intense and persistent TIEL for about 10 s in the absence of a continuous power supply.
MATERIALS HORIZONS
(2023)
Article
Physics, Applied
Yongdi Dang, Yi Zhou, Yuxuan Li, Sen Zhang, Xinran Li, Yi Jin, Pankaj K. Choudhury, Jianbin Xu, Yungui Ma
Summary: The possibility of engineering the surface emissivity of objects to achieve high-performance thermal stability has been investigated. A smart coat has been developed that can passively maintain the temperature of objects in a predefined thermal window in vacuum. The technique shows potential for smart temperature management, especially in space applications.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Daoqing Liu, Shuting Wang, Jingjing Zhang, Jianhui Zeng, Meng Han, Yimin Yao, Jian-Bin Xu, Xiaoliang Zeng, Rong Sun
Summary: This study reports the fabrication of thin films of organic conjugated small molecules and their potential in thermal management. The results show that these films have high thermal conductivity, which can improve the heat transfer efficiency between graphite-based thermal pads and copper heat sinks.
ACS APPLIED MATERIALS & INTERFACES
(2023)
