Article
Engineering, Electrical & Electronic
Abdullah Abdulhameed, Izhal Abdul Halin, Mohd Nazim Mohtar, Mohd Nizar Hamidon
Summary: pH sensors were fabricated using the dielectrophoresis method, showing high sensitivity and fast response time. The sensors were enhanced in stability and repeatability with the assistance of airflow and thermal annealing. The sensors performed well in environments with different pH values, demonstrating reliable long-term performance.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Caixia Wang, Ting Shu, Jinrong Lang, Youzhi Zhang, Qing Yao, Shuang Guo, Shi Wang
Summary: A convenient and efficient NO sensor was developed using multiwalled carbon nanotubes (MWCNTs)-7,7,8,8-tetracyanoquinodimethan (TCNQ)-polylysine (PLL) modified screen-printed electrode (SPE). The sensor showed good performance for the real-time detection of NO released by human umbilical vein endothelial cells (HUVECs) under different conditions and has potential applications in the diagnosis of biological processes and the screening of drug treatment effects.
Article
Chemistry, Physical
Mengli Zhang, Shuhei Inoue, Yukihiko Matsumura
Summary: This study prepared a multi-walled carbon nanotube paper through filtration and tested its gas-sensing ability towards polar and non-polar organic solvents. The adsorption of non-polar solvents exhibited multilayered behavior, possibly due to the measurement temperature exceeding the critical gas temperature and preventing the formation of a stable adsorption layer.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Qiang Wu, Xue Li, Xuming Wang, Yubin Yuan, Xiangrui Bu, Haiyang Wu, Xin Li, Chuanyu Han, XiaoLi Wang, Weihua Liu
Summary: A delay line-type SAW gas sensor based on HFIPPH functionalized MWCNT film is developed to detect DMMP vapor. The sensor exhibits fast response/recovery time and low detection limit, and the acoustoelectric effect is proved to be the sensing mechanism.
Article
Computer Science, Information Systems
Fangfang Liu, Mengmeng Xiao, Yongkai Ning, Shaoyuan Zhou, Jianping He, Yanxia Lin, Zhiyong Zhang
Summary: Researchers have developed a gate assistant technology to accelerate the recovery of gas sensors and promote their practical application, by applying voltage to speed up the desorption of gas molecules in semiconducting carbon nanotube films. This technology, combined with a modified concentration calculation method, has resulted in highly reproducible and rapid detection systems for hydrogen gas.
SCIENCE CHINA-INFORMATION SCIENCES
(2022)
Article
Nanoscience & Nanotechnology
Suyu Shi, Wenzhong Xu, Bing Zhou, Shengxue Qin, Xianhu Liu, Handong Li
Summary: A facile technique using ultrasonication anchoring and compression molding treatment was reported for fabricating high conductivity and improved strength linear low-density polyethylene/multi-walled carbon nanotubes (LLDPE/MWNTs) composite films. The composite films showed excellent conductivity, mechanical properties, and transparency, making them promising materials for vapor sensors.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Chemistry, Analytical
Nikita Lapekin, Valeriy V. Golovakhin, Ekaterina Yu Kim, Alexander G. Bannov
Summary: This article investigates the impact of chemical treatment on the sensing properties of multi-walled carbon nanotubes at room temperature. The results suggest that chemical treatment greatly enhances the sensors' response to NO2.
Article
Chemistry, Analytical
Hao Feng, Junhua Li, Yuqing Liu, Zhifeng Xu, Ying Cui, Mengqin Liu, Xing Liu, Lingzhi He, Jianbo Jiang, Dong Qian
Summary: Cubic MnSe2 nanoparticles were synthesized for the first time using a simple hydrothermal procedure. The synthesized MnSe2/MWCNTs composite exhibited enhanced electrochemical sensing signals for chloramphenicol detection. The composite showed a wide assay range and low limit of detection, making it a promising sensing platform.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Polymer Science
Bangwei Wan, Yang Yang, Rongxin Guo, Zhengming Fan, Peng Deng, Shibo Zhang
Summary: A MWCNT/VMQ composite was prepared using DCP and DBPMH as vulcanizing agents, and the effects of the different agents on the properties of the composite were investigated. The DCP-vulcanized composites showed better mechanical properties and stability, as well as a more stable damage-reconstruction mechanism for the MWCNT network during deformation. An analytical model based on the tunnel effect theory confirmed the potential of this composite for real-time strain monitoring for large deformation structures.
Article
Materials Science, Composites
Zhaofeng Wu, Shuai Cao, Qihua Sun, Furu Zhong, Min Zhang, Haiming Duan
Summary: The uniform dispersion of multi-wall carbon nanotubes in waterborne polyurethane matrix was achieved through in-situ polymerization and latex particles assisted dispersion, enhancing the mechanical and gas sensing properties of the composite material. The response of the flexible MWNT/WPU to O3 was 4.1 times that of pure MWNTs, with a detection limit reaching 38.4 ppb, while also exhibiting high bending stability and long-term stability.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
S. P. Sreekanth, Abdullah Alodhayb, Abdulaziz K. Assaifan, Khalid Eidah Alzahrani, Muthumareeswaran Muthuramamoorthy, Hend Alkhammash, Saravanan Pandiaraj, Abdullah M. Alswieleh, Quyet Van Le, R. Mangaiyarkarasi, Andrews Nirmala Grace, Vimala Raghavan
Summary: The prevalence of cadmium in the ecosystem due to industrial and agricultural processes can lead to inadvertent consumption of hazardous concentrations in food and water. Environmental contamination of cadmium poses a substantial threat to human and animal life. Developing a reliable method for detecting Cd (II) ions, such as the DNA-based electrochemical method discussed in this study, can help reduce exposure and complement existing conventional methods, with potential applications for detecting other heavy metals in environmental samples.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Analytical
Zhen Li, Hong-Yan Zeng, Xiao-Ju Cao, Hao-Bo Li, Yi-Wen Long, Bo Feng, Shi-Bing Lv
Summary: The study fabricated a novel electrochemical sensor by combining NiCoAl-LDH with MWCNT for the simultaneous determination of co-existing trace phenolic substances. The sensor exhibited fast response, high sensitivity, excellent stability, and satisfactory replicability, with detection limits of 0.4, 0.8, and 6.0×10-3μM for HQ, CC, and BPA, respectively. In environmental water, the sensor achieved satisfactory recoveries for HQ, CC, and BPA, with relative standard deviations less than 4.4%.
Article
Engineering, Electrical & Electronic
Pemmatte A. Pushpanjali, Jamballi G. Manjunatha, Nagaraja Sreeharsha, Syed Mohammed Basheeruddin Asdaq, Md Khalid Anwer
Summary: A novel electrode was developed for sensitive and selective measurement of cetirizine dihydrochloride, exhibiting high sensitivity and acceptable repeatability and stability. This electrode was successfully applied for analysis of cetirizine pharmaceutical samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
Xiyao Fu, Lianjia Zhao, Zeyu Yuan, Yiqiang Zheng, Valerii Shulga, Wei Han, Lili Wang
Summary: Researchers have successfully synthesized a layered MXene/MOFs film by intercalating ZIF-67 octahedron crystals between MXene nanosheets to enhance the conductivity of the material. This novel material can be used to fabricate flexible tactile sensors with excellent sensing performance and a broad pressure detection range.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Analytical
Jae Hoon Bang, Ali Mirzaei, Myung Sik Choi, Seungmin Han, Ha Young Lee, Sang Sub Kim, Hyoun Woo Kim
Summary: The study involved decorating multi-walled carbon nanotubes with Cu2O/CuO nanoparticles for gas sensing applications, resulting in high sensor response to H2S gas. The Cu2O/CuO decorations increased the effective surface area for sensing studies and acted as an effective catalyst for H2S gas.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Environmental
Qirui Wu, Songjiu Han, Jundong Zhu, Anbang Chen, Jiayu Zhang, Zhen Yan, Jiantao Liu, Jianren Huang, Xiaoxiang Yang, Lunhui Guan
Summary: In this study, solid-state conductive ionogels (SCIg) composed of long-chain copolymer networks were designed and prepared. The SCIg showed outstanding properties, including high tensile strength, conductivity, self-healing efficiency, and UV curable 3D printability. These SCIgs were further applied in the development of resistance-type sensors, capacitive-type sensors, and multifunctional electronic skins, showing great potential in the fields of electronic skin, physiological signal detection, and human-machine interface.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Huiying Wang, Ziyan Kong, Minghao Wang, Bing Huang, Lunhui Guan
Summary: Manganese and nitrogen co-doped porous carbon is a promising non-precious metal electrocatalyst for the oxygen reduction reaction. Metal triazole frameworks were used as the carbon substrate to trap and anchor Mn-containing gaseous species. The optimized Mn-N-C electrocatalyst exhibited superior ORR activity and excellent cyclic stability, making it a potential catalyst for practical devices like Zn-air batteries.
Article
Chemistry, Multidisciplinary
Songjiu Han, Qirui Wu, Jundong Zhu, Jiayu Zhang, Anbang Chen, Shu Su, Jiantao Liu, Jianren Huang, Xiaoxiang Yang, Lunhui Guan
Summary: This study proposes a simple integrated strategy to prepare an anisotropic hierarchical hydrogel architecture for artificial ligaments. The hydrogels exhibit high water content, strength, fatigue resistance, and stress sensitivity, making them suitable for biomedical applications.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Bing Huang, Yaqi Cui, Xuwei Liu, Caixia Zheng, Hao Wang, Lunhui Guan
Summary: In this study, a catalyst with RuO2 nanorods coated outside SnO2 nanocubes is designed, which forms continuous networks and provides high conductivity, allowing for the reduction of Ru contents in catalysts. Furthermore, the structure evolutions on the RuO2 surface are carefully investigated, and the etched RuO2 surfaces are seen as the consequence of Co leaching, which is more effective in driving oxygen evolution. Electrochemical tests show that the catalysts with 23 wt% Ru exhibit an overpotential of 178 mV at 10 mA cm(-2), which is higher than most state-of-art oxygen evolution catalysts. In practical PEMWE, the noble metal Ru loading on the anode side is only 0.3 mg cm(-2), and the cell achieves 1.61 V at 1 A cm(-2) and proper stability at 500 mA cm(-2), demonstrating the effectiveness of the designed catalyst.
Article
Chemistry, Multidisciplinary
Jianren Huang, Anbang Chen, Songjiu Han, Qirui Wu, Jundong Zhu, Jiayu Zhang, Yujia Chen, Jiantao Liu, Lunhui Guan
Summary: Soft strain gauges offer a flexible and versatile alternative to traditional gauges, with improved fracture energy, fatigue threshold, and sensing performance. A mechanically interlocked gel-elastomer hybrid material is utilized for the strain gauge, providing exceptional strength and stretchability. The resulting electrode demonstrates excellent detection capabilities for human-related vibrations, enabling the measurement of physiological parameters and the development of an intelligent motion detection system.
Article
Chemistry, Physical
Yanmei Gan, Lizhong Liu, Qixin Zhang, Jianren Huang, Songjiu Han, Bingbing Chen, Yang Liu, Qiangmin Yu, Lunhui Guan, Tianhua Zhou, Min Han, Yi Zhao, Wei Huang
Summary: Advanced anode materials with stable and fast K-ion storage behavior are developed by encapsulating core-shell NiS2@C nanoparticles within MOF-derived hollow carbon shell. The internal interfacial engineering enhances the charge transport kinetics, pseudocapacitive behavior, and mitigates mechanical stress in the outer carbon shell. The yolk-shell NiS2@C@C composite exhibits ultrahigh capacity and excellent cycle stability, making it highly competitive for potassium-ion batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Jundong Zhu, Songjiu Han, Qirui Wu, Jiayu Zhang, Anbang Chen, Bing Huang, Jianren Huang, Lunhui Guan
Summary: In this study, a poly(vinyl electrolyte) was prepared by a one-pot method, followed by in situ polymerization of aniline to fabricate all-in-one polyaniline supercapacitor devices. These devices demonstrated good mechanical and electrochemical performance over a wide temperature range, making them suitable for human health monitoring and wearable electronics applications.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Anbang Chen, Jiayu Zhang, Jundong Zhu, Zhen Yan, Qirui Wu, Songjiu Han, Jianren Huang, Lunhui Guan
Summary: In this study, a hydrogel with high resilience and adhesion was prepared by introducing glycerol into a dual-network structure. A conductive layer of graphene oxide and carbon nanotubes was sprayed on the hydrogel to achieve high strain sensing. The integrated sensor showed high sensitivity, wide strain range, and good adhesion, providing a feasible solution for improving wearable electronic devices for healthcare monitoring.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Jiaoxing Xu, Yaqi Cui, Meilin Wang, Guoliang Chai, Lunhui Guan
Summary: Sulfur-and-nitrogen-codoped few-layered graphene synthesized by a pyrimidine-assisted chemical-vapor-deposition method exhibits exceptional activity and selectivity for two-electron oxygen reduction reaction (2e(-) ORR) in acidic electrolyte, leading to efficient production of H2O2.
Article
Chemistry, Inorganic & Nuclear
Yanmei Gan, Jiajie Zhu, Qixin Zhang, Chaoying Wang, Lunhui Guan, Yi Zhao
Summary: The battery performance of iron sulfide anode is significantly enhanced through yolk-shell structure design and nickel doping, resulting in good structure stability and superior electron/ion transportation. The Y-S Ni-FeS2@C composite exhibits excellent cyclic performance, sustaining high capacities and superior rate capability compared to other metal sulfide anodes for potassium-ion batteries.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Minghao Wang, Bing Huang, Nannan Jiang, Tao Liu, Jianren Huang, Lunhui Guan
Summary: A highly dispersed Fe-N-C catalyst with dense active sites was successfully synthesized using a simple and rapid pyrolysis method. The catalyst exhibited superior ORR activity in alkaline and acidic environments. When applied in zinc-air batteries and proton exchange membrane fuel cells, the catalyst showed high peak power density.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Jin Bai, Jianren Huang, Qirui Wu, Lunhui Guan
Summary: Graphene oxide (GO) has excellent mechanical and chemical characteristics, but its expansion and instability in water limit its application. In this study, nitrogen-doped GO (NGO) was successfully obtained and its inter-layer structure and permeability were controlled by adjusting the reduction degree of GO and doping amount of nitrogen. The synthesized NGO membranes showed better permeability than the initial GO membranes without sacrificing the rejection rate.
Article
Chemistry, Inorganic & Nuclear
Chaoying Wang, Qianqian Yao, Yanmei Gan, Qixin Zhang, Lunhui Guan, Yi Zhao
Summary: A unique single-walled carbon nanotubes (SWNTs) coating layer has been developed to improve the battery behavior of electrode materials. The SWNTs coating allows for fast electron/ion transport and good structure stability, resulting in superior performance of the coated composites.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Tao Liu, Feng Sun, Meihua Huang, Lunhui Guan
Summary: Atomically dispersed cobalt-nitrogen-carbon (Co-N-C) catalysts have shown potential as substitutes for expensive noble-metal catalysts in PEMFCs for ORR. A new synthesis method using low-speed ball milling has improved conversion efficiency and metal doping rate, while reducing the use of organic solvents and metal ions.
MATERIALS ADVANCES
(2022)
