Article
Materials Science, Textiles
Liuxiang Zhan, Gaojun Wang, Xianli Zhao, Yuling Li, Ni Wang
Summary: The research detailed the effects of different dyeing temperatures on the properties of cashmere fibers, showing that lower temperature dyeing was significant in reducing fiber damage.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Energy & Fuels
Yiqing Yang, Peihao Chen, Qiang Liu
Summary: A coaxial mechanical motion rectifier with a planetary gear train and four one-way clutches is designed to increase transmission ratio, along with the incorporation of a variable inertia flywheel to extend the overrunning phase. Experimental results show that the design is beneficial in improving the output power and efficiency of the wave energy harvester.
Article
Computer Science, Information Systems
Yaolin Zhu, Jiayi Huang, Yunhong Li, Wenya Li
Summary: An image identification method of cashmere and wool fibers based on an improved Xception network is proposed in this study. The method extracts deep features of fiber images using convolutional and max-pooling layers, reduces overfitting with an improved activation function, and classifies fiber features using a Sigmoid classifier. Experimental results show that the method achieves a higher accuracy in fiber image identification.
JOURNAL OF KING SAUD UNIVERSITY-COMPUTER AND INFORMATION SCIENCES
(2022)
Article
Physics, Applied
Jiantao Zhang, Xiangfu Yu, Wei Zhao, Dong Qu
Summary: In recent years, there has been a steady increase in the use of wearable and portable electronic devices, leading to higher power demands due to improved performance. Researchers are studying methods to generate energy from ambient sources to address the power supply issue. A novel piezoelectric energy harvester has been developed to harvest energy from human motion, with a double-bridge force amplification frame to improve output performance. Additionally, a theoretical model has been presented to predict the output performance of piezoelectric energy harvesters.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Haoyu Zheng, Huazhang Zhang, Pin Wen, Daping He
Summary: This paper introduces a novel electrode material, graphene macro-films (GAMF), for improving the electrical output performance of the flexible piezoelectric energy harvester (f-PEH). The theoretical analysis and experimental results show that the f-PEH with GAMF having a greater negative Poisson's ratio and a larger Young's modulus exhibits better electrical output performance. The feasibility of the optimized sample in practical application is verified through load characteristic tests and stability tests.
Article
Chemistry, Physical
Youchao Huang, Dexing Liu, Tianyu Zhu, Yiming Zhang, Lingchong Fan, Jun Liu, Min Zhang
Summary: In this study, a mechanically tunable electromagnetic wave harvester (EMH) based on heterojunctions is proposed, which can convert various forms of energy into electricity. It can also serve as a sensor to detect electromagnetic waves and pressure. The design is simple and has wide applicability, making it significant for wearable electronics, intelligent robots, and the Internet of Things.
Article
Thermodynamics
Ali Azam, Ammar Ahmed, Nasir Hayat, Shoukat Ali, Abdul Shakoor Khan, Ghulam Murtaza, Touqeer Aslam
Summary: This paper presents a novel mechanical energy harvester based on a movable speed bump, which can collect the kinetic energy generated by decelerating vehicles on the road and convert it into electrical power. The device consists of four modules and utilizes transmission mechanism and one-way clutches to achieve efficient energy conversion and storage.
Article
Energy & Fuels
Yoonsang Ra, Jong Hyun Lee, Jiho Bang, Donghan Lee, Dongik Kam, Sumin Cho, Sunmin Jang, Donghyeon Yoo, Jong Woo Kim, Kyoung Je Cha, Dongwhi Choi
Summary: This study presents a method to manufacture micro/nanoscale surface-structured PFA contact layers using injection molding-assisted mass production. The fabricated PFA contact layer in TENG exhibits easily replaceable and fully recyclable characteristics, while still providing high voltage and power output during solid-solid contact and separation.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
James Graves, Yang Kuang, Meiling Zhu
Summary: This paper presents the integration of a novel mechanical torsion spring regulator into a pendulum energy harvester system. The regulator provides voltage-smoothing benefits and acts as a buffer for sudden impacts, reducing torque stress on critical components to improve system reliability. Experimental results show a reduction in voltage fluctuation range and improved start-up response compared to devices with flywheels.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Mechanical
Guangdong Sui, Xiaobiao Shan, Haigang Tian, Lele Wang, Tao Xie
Summary: This paper analyzes the output characteristics of different piezoelectric energy harvester (PEH) arrays based on flow-induced vibration through simulation and experiments. The experimental results show that the energy harvesting capacity of PEH-9 is the highest, but its initial vibration velocity is the slowest.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Chemistry, Physical
Fengqian Hao, Biao Wang, Xu Wang, Tao Tang, Yimeng Li, Zhengbao Yang, Jian Lu
Summary: A bionic metallic nanomaterial-based bistable piezoelectric energy harvester is developed in this study, inspired by the structure of soybean pods. The harvester shows increased voltage output and working bandwidth in intermittent and continuous cross-well vibration modes.
Article
Nanoscience & Nanotechnology
Harishkumarreddy Patnam, Sontyana Adonijah Graham, Punnarao Manchi, Mandar Vasant Paranjape, Jae Su Yu
Summary: This study developed a method to insert ion-rich pores into hydrogels, obtaining an ionic conductive hydrogel with improved mechanical and electrical properties. A flexible and shape-adaptable single-electrode TENG was fabricated using this hydrogel and silicone rubber, which can be used in wearable devices and touch sensors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biotechnology & Applied Microbiology
Cuiling Wu, Jianying Li, Xinming Xu, Qi Xu, Chongkai Qin, Guifen Liu, Chen Wei, Guoping Zhang, Kechuan Tian, Xuefeng Fu
Summary: This study analyzed the gene expression profiles of skin tissues of cashmere goats with different cashmere fineness using transcriptome sequencing techniques. It identified several genes that may affect cashmere fineness, and verified that overexpression of the FA2H gene can promote proliferation of secondary hair follicle DPCs in cashmere goats and regulate the expression levels of FGF5 and BMP2 genes.
Article
Chemistry, Analytical
Xinyi Wang, Jiaxing Li, Chenyuan Zhou, Kai Tao, Dayong Qiao, Yunjia Li
Summary: This paper presents a novel miniaturized electromagnetic vibrational energy harvester based on a torsional vibrating magnet, with microfabricated silicon torsional springs effectively reducing the device's footprint. The proposed EVEH is capable of generating stable output voltage and power under various conditions, showing promise for energy harvesting applications in small-scale systems.
Article
Chemistry, Analytical
Pietro Aceti, Michele Rosso, Raffaele Ardito, Nicola Pienazza, Alessandro Nastro, Marco Bau, Marco Ferrari, Markku Rouvala, Vittorio Ferrari, Alberto Corigliano
Summary: This work presents a novel development of the impact-based mechanism for piezoelectric vibration energy harvesters. The effect of an impacting mass on a cantilever piezoelectric transducer is studied to find an optimal condition for power extraction. The most effective configuration for power output is found to be an impact at the cantilever tip without a tip mass.
Article
Chemistry, Physical
Kelong Ao, Jihong Shi, Xiangyang Zhang, Walid A. Daoud
Summary: This study investigates a two-step tuning strategy to prepare oxygen vacancy-rich NiCo2O4 nanosheets for ZABs, enhancing the activities of oxygen evolution and reduction reactions. The resulting electrodes demonstrate higher power density and cycling stability compared to traditional catalysts, showing potential for high-performance ZABs.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Lingyun Wang, Yu Wang, Su Yang, Xiaoming Tao, Yunlong Zi, Walid A. Daoud
Summary: This study introduces a solvent-free ionic elastomer (IE) with high transparency, stretchability, ionic conductivity, adhesiveness, thermal stability, and negligible mechanical hysteresis, suitable for multifunctional stretchable electronics. The IE-based robust strain and temperature sensors demonstrate good linear sensitivity and long-term stability.
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
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
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
Energy & Fuels
Dingyu Liu, Xiya Yang, Jiaan Gao, Qing Ran, Gelin Zhu, Jingbo Yuan, Duo Zheng, Jiangtao Guo, Leilei Zhao, Qunwei Tang
Summary: The smart solar panel umbrella system combines a polysilicon solar cell module and an interdigitated electrode structure triboelectric nanogenerator (IDE-TENG) to realize the function of auto open and close. It can harvest rain energy and generate power in low-light conditions. The system achieves high power conversion efficiency of 19.61% and automatically switches as the weather changes.
Article
Chemistry, Multidisciplinary
Haiyang Wen, Xiya Yang, Ruiyuan Huang, Duo Zheng, Jingbo Yuan, Hongxin Hong, Jialong Duan, Yunlong Zi, Qunwei Tang
Summary: The launching of 5G technology has created a promising opportunity for the development of Internet of Things devices and intelligent wireless sensor nodes. However, the deployment of a large network of wireless sensor nodes poses challenges in terms of sustainable power supply and self-powered active sensing. The development of a triboelectric sensor module (TSM) aims to address these challenges by converting the high output of triboelectric nanogenerators (TENGs) into signals that can be used directly by commercial electronics. With the integration of TSM, a smart switching system based on IoT has been realized, enabling real-time monitoring of appliance status and location information.
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
Yingli Wang, Jialong Duan, Qiyao Guo, Yuanyuan Zhao, Xiya Yang, Qunwei Tang
Summary: Developing novel rainwater energy harvesting is a promising solution to address the energy crisis and environmental pollution. In this study, self-powered PtNi and optimal PtNi-PANI films are developed to convert rainwater into electricity, with high current, voltage, and power output. The success of this work provides new insights into rain energy and contributes to the conversion of renewable energy into electricity generation.
Article
Engineering, Electrical & Electronic
Xianghe Meng, Xiya Yang, Wenkai Xu, Hongxin Hong, Haiyang Wen, Jingbo Yuan, Duo Zheng, Ruiyuan Huang, Jialong Duan, Qunwei Tang
Summary: Lead-free ferroelectric one-dimensional nanostructures have potential in building micro/nanoenergy harvesters. In this study, potassium sodium niobate (KNN) nanostructures were embedded into a poly(dimethylsiloxane) (PDMS) film to develop a hybrid piezoelectric-triboelectric nanogenerator (PTENG) that efficiently scavenges mechanical energy. The electric field produced by the KNN-Mn film and its function as an electron blocking layer were systematically investigated. Additionally, embedding KNN-Ca nanorods into PDMS enhanced the polarized electric field and increased surface charge density.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hong Zhao, Wai-Yu Ashley Lam, Li Wang, Hong Xu, Walid A. Daoud, Xiangming He
Summary: This paper emphasizes the significance of high-precision measurements in Li-ion batteries and proposes a combined approach using electrochemical and material measurements to gain insights into the battery's performance and lifespan.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)