Article
Chemistry, Inorganic & Nuclear
Zhichao Shao, Haoran Cheng, Yi Wei, Junshuai Chen, Kexin Gao, Zhe Fang, Yangshuang Yan, Liwei Mi, Hongwei Hou
Summary: A cationic metal-organic framework with good chemical stability and excellent triboelectric output performance was prepared. The good output performance makes ZUT-iMOF-1(Cu) effective in preventing metal corrosion in cathodic protection systems.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Wei-Zhi Song, Ting-Ting Zhang, Duo-Shi Zhang, Chang-Long Li, De-Jun Sun, Jun Zhang, Seeram Ramakrishna, Yun-Ze Long
Summary: By studying the TENG based on LM-TPU composite film, this paper provides a clear understanding of how the thickness of the dielectric layer affects TENG output. The existence of the most suitable thickness of the TENG dielectric layer is demonstrated, which increases the LM-TENG's output power by a factor of nine. This result provides important guidance for the structural design of TENGs. Additionally, an antipeeping smart door lock password system based on LM-TENG was successfully designed, revealing the great application potential of TENG in the field of smart home.
Article
Chemistry, Inorganic & Nuclear
Zhichao Shao, Haoran Cheng, Yi Wei, Junshuai Chen, Kexin Gao, Zhe Fang, Yangshuang Yan, Liwei Mi, Hongwei Hou
Summary: New stable frictional materials based on metal-organic frameworks (MOFs) are desired for self-powered systems. This study reports an ionic MOF material with efficient charge separation and high output performance. It provides research suggestions for ionic MOF frictional materials and promotes their application in self-powered electrochemical cathodic-protection systems.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Yan Meng, Jiayi Yang, Shuangshuang Liu, Wei Xu, Guobin Chen, Zihao Niu, Meiqi Wang, Tao Deng, Yong Qin, Mengdi Han, Xiuhan Li
Summary: Rail fasteners are crucial components for railway tracks, and regular inspection is important for safe operation. To establish a real-time and efficient rail fastener tightness safety detection system, a self-powered vibration sensor based on electrospinning nanofibers is proposed. It can collect vibration energy and accurately identify the tightness of rail fasteners.
Article
Chemistry, Multidisciplinary
Jinxing Jiang, Qingbao Guan, Yina Liu, Xuhui Sun, Zhen Wen
Summary: This study successfully fabricated an ultrastretchable TENG that can simultaneously heal fractures and abrasions at room temperature, demonstrating impressive stretchability and self-healing properties. The TENG showed excellent electrical outputs in contact-separation mode and could quickly recover electrical performance if stretched to break or scratched to wear out, indicating great potential for flexible and wearable electronics applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
M. Toyabur Rahman, S. M. Sohel Rana, M. Abu Zahed, Sanghyun Lee, Eui-Sung Yoon, Jae Yeong Park
Summary: This study introduces MOF-derived nanomaterials to enhance the energy harvesting performance of TENG, paving the way for new tribomaterials.
Article
Materials Science, Multidisciplinary
Lingling Feng, Sijun Xu, Tong Sun, Chengjiao Zhang, Jundan Feng, Lirong Yao, Jianlong Ge
Summary: This study demonstrates a simple method to fabricate a metal-free fire/acid/alkali-resistant fiber and carbon nanofiber composite triboelectric nanogenerator (PMIA/CNF-TENG). The PMIA/CNF-TENG exhibits textile construction advantages such as flexibility, waterproofing, and moisture permeability. It also shows unique functions including ultrahigh fire/temperature resistance, strong acid and alkali protection, real-time human signal monitoring, and fire-sensing capability.
ADVANCED FIBER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiaqing Zhu, Yu Cheng, Saifei Hao, Zhong Lin Wang, Ning Wang, Xia Cao
Summary: F-STENG utilizes feathers as a natural material, with environmental friendliness and high durability. It has high sensitivity to temperature, humidity, and wind speed, providing an effective solution for energy problems.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Yuxiang Wu, Yusheng Li, Yang Zou, Wei Rao, Yansong Gai, Jiangtao Xue, Li Wu, Xuecheng Qu, Ying Liu, Guodong Xu, Lingling Xu, Zhuo Liu, Zhou Li
Summary: The study introduces a multi-mode stretchable and wearable triboelectric nanogenerator for biomechanical energy harvesting and physiological functions sensing. This device can convert the energy of limb movement into electricity while monitoring arterial pulse signals, joint bending angles, and limb stability in real time, showing great potential for applications in exercise monitoring and rehabilitation therapy.
Article
Chemistry, Physical
Puran Pandey, Dae-Hwan Jung, Geon-Ju Choi, Min-Kyu Seo, Sanghyo Lee, Jong Min Kim, Il-Kyu Park, Jung Inn Sohn
Summary: This paper proposes a novel Nafion-functionalized barium titanate nanoparticles (BaTiO3 NPs)/polyvinylidene fluoride (PVDF) composite nano-fibers, which exhibit excellent dispersion and long-term stability. The composite material shows enhanced triboelectric properties and can be used as a self-powered human-machine interface for smart control systems.
Article
Chemistry, Multidisciplinary
Deepika Thakur, Soonmin Seo, Jinho Hyun
Summary: Here is a description of the fabrication process of a compact, flexible and lightweight 3D triboelectric nanogenerator (TENG) using carboxymethylated cellulose nanofiber (CM-CNF) and perfluoroalkoxy (PFA) films. The output performance of the TENG is dependent on the functionalization of the CM-CNF film, loading force, and frequencies. The carboxymethylation of the cellulose nanofiber directly enhances the output voltage and current of the CM-CNF/PFA TENG, which can generate a maximum power output of 2000 lW under specific conditions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Sk Masum Nawaz, Moumita Chatterjee, Sukanya Chakrabarti, Nayim Sepay, Abhijit Mallik
Summary: This study demonstrates the realization of high-performing triboelectric nanogenerator (TENG) through molecular self-assembly, which enhances charge transfer and power density between the tribo-layers.
Article
Engineering, Environmental
Ran Wang, Jinming Ma, Shuai Ma, Qiran Zhang, Na Li, Miaomiao Ji, Tifeng Jiao, Xia Cao
Summary: Researchers have demonstrated a flexible, biodegradable, single electrode cellulose-based triboelectric nanogenerator (FR-TENG) with high sensitivity temperature response and fire warning capabilities. The FR-TENG, fabricated using biocompatible flame retardants, reduces heat release rate and increases limiting oxygen index, while exhibiting high resistance response and thermal index, making it suitable for wearable electronics.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Qixin Lu, Hong Chen, Yuanming Zeng, Jiehui Xue, Xia Cao, Ning Wang, Zhonglin Wang
Summary: This paper presents a smart facemask with respiratory monitoring function, which utilizes RS-TENG technology to achieve high-sensitivity monitoring of respiratory flow and timely alarm for apnea. Additionally, RS-TENG can also control household appliances, bringing convenience to the lives of disabled individuals.
Review
Chemistry, Physical
Jianfeng Sun, Lingjun Zhang, Siqi Gong, Jie Chen, Hengyu Guo
Summary: Triboelectric nanogenerator (TENG) is a promising renewable energy technology that converts mechanical energy into electrical energy. With its high voltage, low current and controllable output, TENG has revolutionized various disciplines including biology, chemistry, physics, and medicine. This review provides an overview of the fundamental theory, physical device models, and high voltage output characteristics of TENG, as well as methods to enhance its performance and comparisons with conventional high voltage sources. The applications of TENG are categorized into four domains: therapeutic electrical stimulation, environmental governance, force-electricity-optical information coupling, and biochemical analysis. The review also highlights key challenges and future research priorities for the advancement of TENG as a high voltage power source.
Article
Chemistry, Physical
Kousik Bhunia, Santimoy Khilari, Moumita Chandra, Debabrata Pradhan, Sang-Jae Kim
Summary: In this study, nickel oxide nanoparticles/g-C3N4 nanocomposites were synthesized using a facile impregnation method, and they exhibited excellent oxygen evolution reaction (OER) activity. The optimal loading of NiO, which was approximately 30%, achieved high OER performance and durability at a 360 mV overpotential.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
I. B. Khadka, N. R. Alluri, M. M. Alsardia, N. P. M. Joseph Raj, A. P. S. Prasanna, Bakhtiar Ul Haq, S. J. Kim, Se-Hun Kim
Summary: Metal-graphene-metal UV-Visible photodetectors fabricated on quasifreestanding graphene (QFSG)/ vicinal SiC wafers demonstrate effective photoresponse and can be enhanced by localized surface plasmon resonance using gold nanoparticles. This device shows potential for low-power consumption UV-Visible detection.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Alekhika Tripathy, Nirmal Prashanth Maria Joseph Raj, Balasubramaniam Saravanakumar, Sang-Jae Kim, Ananthakumar Ramadoss
Summary: In this study, BFO piezoceramics were synthesized using a simple hydrothermal method and incorporated into flexible nanocomposite films. Results showed that the addition of BFO nanoparticles improved the piezoelectric performance of the films, and corona poling further enhanced their properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Green & Sustainable Science & Technology
Keyru Serbara Bejigo, Subramanian Natarajan, Kousik Bhunia, Vijayakumar Elumalai, Sang-Jae Kim
Summary: Environmentally friendly technology for recycling spent lithium-ion battery (LIB) electrodes was developed to explore the efficiency of regenerated electrocatalysts for electrochemical oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR). The process involved lixiviation of LixCoO2 electrodes using tartaric acid and H2O2, conversion of graphite into graphene oxide (GO), and regeneration of cobalt oxide-supported reduced graphene oxide (Co3O4/rGO). The regenerated composite material exhibited good activity for ORR and MOR, indicating the potential utilization of end-of-life LIBs as high-performance electrocatalysts in energy conversion devices.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Analytical
Ajay Beniwal, Priyanka Ganguly, Akshaya Kumar Aliyana, Gaurav Khandelwal, Ravinder Dahiya
Summary: This article presents a flexible, cost-effective, and disposable humidity sensor developed on a paper substrate. The sensor demonstrates good sensing performance, high flexibility, stability, repeatability, short response/recovery time, and good reproducibility. The sensor's efficacy is evaluated for spatial humidity monitoring, respiration rate monitoring, and soil moisture monitoring, showing its potential applications in environmental, agricultural, and healthcare fields.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Multidisciplinary
Monunith Anithkumar, Asokan Poorani Sathya Prasanna, Nagamalleswara Rao Alluri, Sang-Jae Kim
Summary: Novel hybrid nanogenerators (HNG) with multifunctional materials are gaining immense interest due to their high electrical output and broad applications in the electronic industry. The intrinsic hybridization of single electrode triboelectric (SE-TE) and piezoelectric (PE) nanogenerators (NGs), known as double layered (DL)-HNG, can eliminate the real-time electrical grounding issues and produce high output. The DL-HNG, made of Cu2O-doped 0.3Ba(0.7)Ca(0.3)TiO(3)-0.7BaSn(0.12)Ti(0.88)O(3) nanoparticles (Cu2O-BCST NPs) and polydimethylsiloxane polymer, can be scaled up to work as a flexible self-powered trackpad or touch sensor.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Vigneshwaran Mohan, Vimal Kumar Mariappan, Parthiban Pazhamalai, Karthikeyan Krishnamoorthy, Sang-Jae Kim
Summary: The influence of surface charge on tribo-layer is crucial for improving the performance of tribo-electric nanogenerators (TENG). However, most researchers focus on the structure and design of TENG rather than increasing the surface charge density, which is the main parameter for energy harnessing. In this study, we adjusted the surface charge density of polydimethylsiloxane (PDMS) by incorporating different carbon allotropes to achieve high output TENG. The PDMS/GO TENG device generated a voltage of 234 V, higher than bare PDMS and other nano-composite films, due to its high surface charge.
Article
Chemistry, Physical
Gaurav Khandelwal, Guanbo Min, Xenofon Karagiorgis, Ravinder Dahiya
Summary: In this study, a fully biodegradable TENG composed of aligned PLLA fibers and chitosan as the active layers was reported. The aPLLA fiber based TENG showed superior performance due to better helix chain conformation. The TENG demonstrated excellent mechanical stability and produced a high output power density. This approach provides an attractive green energy harvesting solution for powering portable devices without concerns of electronic waste management.
Article
Chemistry, Physical
Roshan M. Bhattarai, Kisan Chhetri, Nghia Le, Debendra Acharya, Shirjana Saud, Mai Cao Hoang Phuong Lan Nguyen, Sang Jae Kim, Young Sun Mok
Summary: In this study, Ni-Co-C-N composite alloys (NiCCZ) derived from metal-organic framework (MOF) were embedded inside carbon cloth (CC) strands to achieve ultrastable energy storage and conversion applications. The NiCCZ was then modified with oxygen to create a flower-like metal hydroxysulfide structure (NiCCZOS), which demonstrated excellent capacity as a supercapacitor electrode. When paired with nitrogen-rich activated carbon, the resulting asymmetric supercapacitor device showed impressive capacity retention and energy density. Furthermore, the same electrode exhibited excellent performance as a bifunctional water-splitting electrocatalyst. This unique metal chalcogenide composite electrode/substrate configuration is proposed as a highly stable material for flexible energy storage and conversion applications.
Article
Engineering, Environmental
Kousik Bhunia, Elumalai Vijayakumar, Nirmal Prashanth Maria Joseph Raj, Keyru Serbara Bejigo, Dhanasekar Kesavan, Sang -Jae Kim
Summary: The present study demonstrates the effectiveness of a noble metal-free cobalt nanoparticle-integrated nitrogen-doped carbon nanotubes catalyst for oxygen reduction reaction in Direct Methanol Fuel Cells (DMFCs). The catalyst showed superior activity and performance compared to conventional platinum catalysts. The study also showcased the applicability of the catalyst-integrated DMFC in powering portable electronics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Subramanian Natarajan, Roshan Mangal Bhattarai, M. S. P. Sudhakaran, Young Sun Mok, Sang Jae Kim
Summary: Recycling all components of waste lithium-ion batteries (WLIBs) can bring economic benefits, address material scarcity, and reduce environmental pollution. However, developing anode recycling techniques is crucial due to its low added value and complex recycling process compared to the valuable cathode parts. In this study, an efficient recycling method is proposed to recycle the anode material and achieve high electrochemical performance for battery applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Electrical & Electronic
Alekhika Tripathy, Nirmal Prashanth Maria Joseph Raj, Sang Jae Kim, Ananthakumar Ramadoss
Summary: Ecofriendly, reliable, and high-performance piezoelectric materials, such as potassium sodium niobate (KNN), are being studied as alternatives to fossil fuel energy to resolve environmental issues. In this study, the piezoelectric performance of KNN incorporated in poly(vinylidene fluoride) (PVDF) and its copolymers, PVDF-TrFE and PVDF-HFP, was compared. The results showed that the nanocomposite film with 8 wt % KNN filler in PVDF-TrFE exhibited the highest piezoelectric performance and voltage output among the different composites.
ACS APPLIED ELECTRONIC MATERIALS
(2023)