Article
Chemistry, Multidisciplinary
Reeya Garg, Mohit Jaiswal, Kaustubh Kumar, Komalpreet Kaur, Bhawna Rawat, Kamalakannan Kailasam, Ujjal K. Gautam
Summary: This study investigates an efficient composite material based on carbon nanostructures and non-noble metals, which exhibits high half-wave potential and electrocatalytic performance. The enhanced activity is attributed to the synergistic effect of high conductivity of carbon nanotubes and active Fe sites. In situ growth of CNTs prevents mass loss during catalyst material synthesis.
Article
Chemistry, Multidisciplinary
Reeya Garg, Mohit Jaiswal, Kaustubh Kumar, Komalpreet Kaur, Bhawna Rawat, Kamalakannan Kailasam, Ujjal K. Gautam
Summary: Achieving high electrocatalytic performance using a composite material of carbon nanotubes and non-noble metals can minimize metal loss and retain a high metal content, leading to efficient electrocatalysis.
Article
Materials Science, Composites
Yanan Zhang, Xinyang Liu, Fan Ji, Cheng Liu, Yubing Hu, Wei Jiang, Yifan Xing
Summary: This study investigates the influence of chemically grafting CNTs on the surface of carbon fibers on the mechanical properties of Ti/CFRP laminates. It was found that the grafting of CNTs significantly improved the bending and interlaminar shear strength of the laminates, as well as the deformation resistance and reduced damaged area.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Fang Ye, Yuchen Cao, Jie Liang, Laifei Cheng
Summary: Carbon nanotubes (CNTs) were introduced as modifiers to improve the dielectric properties and electromagnetic (EM) absorption performances of polysiloxane (PSO) derived SiOC ceramics. The effects of CNTs content and heat treatment temperature on the microstructure evolution and dielectric properties of CNTs/SiOC composites were studied. Results showed that CNTs can accelerate the crystallization of SiOC, leading to the formation of large-sized SiC nanocrystals and SiC nanowires. The CNTs/SiOC composites exhibited significantly improved reflection losses due to the A/B/C EM absorption structure formed by foreign CNTs, crystalline SiC phases, and amorphous SiOC matrix. The optimized CNTs/SiOC composite had a minimum reflection coefficient of -59 dB at 9.6 GHz and an effective EM absorption bandwidth of 3.5 GHz in the X-band, with a CNTs content of 2 wt% and treated at 1400 degrees C with a thickness of 2.9 mm.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Multidisciplinary
Ziwei Mo, Jiaqian Zhou, Xin Lu, Lirong Liang, Fusheng Liu, Zhuoxin Liu, Guangming Chen
Summary: Thermal energy is widely distributed and generated in nature and society, and thermocells (TECs) have become a promising technology to convert thermal energy into electricity. However, the use of noble platinum electrodes in TECs limits their widespread applications due to the scarcity and rigidity of platinum. In this study, we propose a facile method to construct flexible electrodes with optimized nanostructures, using conducting polypyrrole nanospheres decorated on a single-walled carbon nanotube network. The resulting flexible composite electrode shows superior thermoelectrochemical performance compared to the noble platinum electrode.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Jia-Yue Xie, Kai Wang, Ning-Ning Li, Guang-Lu Lei, Hou-Shan Mei, Xiang-Hong Liu, Jun Zhang
Summary: The study reports the design of integrative carbon nanotubes@germanium films as binder-free electrodes for potassium-ion batteries. The films demonstrate higher specific capacity, rate performance, and cycling stability compared to pristine germanium and carbon nanotubes electrodes. The enhanced potassium storage properties are attributed to the interconnected carbon nanotubes that effectively buffer the volume expansion of germanium during alloying/dealloying process.
Article
Chemistry, Physical
Zihao Guo, Anran Li, Zhihao Sun, Zhaoqian Yan, Hongshou Liu, Lei Qian
Summary: Poly (sodium 4-styrene sulfonate) (PSS) and polyethyleneimine (PEI) were assembled on the reduced graphene oxide (rGO) surface to control the negative permittivity properties of rGO/carbon nanotubes (CNTs) composites. The sulfonic acid groups and benzene rings in PSS played a role in regulating the heterogeneous interface of rGO/CNTs, resulting in controllable negative dielectric properties. However, the introduction of PEI changed the interface, causing a shift from negative to positive permittivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Deepak Balram, Kuang-Yow Lian, Neethu Sebastian, N. Rasana
Summary: This paper details the detection of hepatotoxic antipyretic drug acetaminophen (APAP) at the nanomolar level using a novel nanocomposite with excellent electrocatalytic properties. The proposed APAP sensor demonstrated outstanding performance with a ultra-low detection limit of 1 nM and high sensitivity of 89.64 muA muM-1 cm-2. Experimental evaluation on real samples including APAP tablets, human urine, and human serum confirmed the practical feasibility of APAP detection.
APPLIED SURFACE SCIENCE
(2021)
Article
Construction & Building Technology
Mohamed Samir Eisa, Ahmed Mohamady, Mohamed E. Basiouny, Ayman Abdulhamid, Jong R. Kim
Summary: This study investigates the modification of conventional asphalt cement using different percentages of carbon nanotubes (CNTs). The results show that adding CNTs decreases the penetration and increases the viscosity and softening point of asphalt cement. The performance of asphalt concrete pavement is improved with the addition of CNTs, leading to a longer service life and reduced maintenance expenses.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Chemistry, Analytical
Xizhen Liang, Yueming Zhou, Joseany M. S. Almeida, Christopher M. A. Brett
Summary: A new electrochemical sensor based on a neutral red and multiwalled carbon nanotubes modified glassy carbon electrode, with neutral red electropolymerized in ternary deep eutectic solvents, has been developed. The sensor exhibited excellent performance towards acetaminophen (APAP) detection, with a high sensitivity (56.4 μA μM-1 cm-2) and a low limit of detection (0.015 μM). It also demonstrated outstanding selectivity, repeatability, reproducibility, and stability. This sensor has potential applications in pharmaceutical analysis.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Polymer Science
Xueying Chang, Zhiyin Yang, Ailun Huang, Yuto Katsuyama, Cheng-Wei Lin, Maher F. El-Kady, Chenxiang Wang, Richard B. Kaner
Summary: Research has shown that the cycling stability of composite electrodes based on aniline trimers and carbon nanotubes can be enhanced by establishing covalent bonding between the two materials. Additionally, higher porosity improves electron/ion transfer and the ability to adapt to volumetric changes, resulting in higher conductivity and extended cycle life.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Ngo Minh Phuoc, Nguyen Anh Thu Tran, Tran Minh Khoi, Hye Bin Jung, Wook Ahn, Euiyeon Jung, Chung-Yul Yoo, Hong Suk Kang, Younghyun Cho
Summary: Capacitive deionization (CDI) is a promising desalination technology known for its energy efficiency, cost effectiveness, and eco-friendly process. The use of flowable electrodes in CDI offers continuous desalination stream, however, limited salt removal efficiency remains a challenge in current systems.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biophysics
Gulsah Gul, Roland Faller, Nazar Ileri-Ercan
Summary: In this study, we used molecular dynamics simulations to investigate the interactions between Martini3 coarse-grained models of polystyrene and carboxyl-terminated polystyrene functionalized carbon nanotubes (CNTs) and lipid bilayers with and without cholesterol. We observed nanoparticle translocation and changes in lipid bilayer properties by altering the polystyrene chain length and grafting density at the end ring of the CNTs at different nanotube concentrations. Our findings suggest that polystyrene-functionalized CNTs have potential as drug carrier agents, but the polystyrene chain length and grafting density should be carefully considered to enhance drug delivery efficiency.
BIOPHYSICAL JOURNAL
(2023)
Article
Materials Science, Ceramics
Ruamporn Potong, Rattiyakorn Rianyoi, Arnon Chaipanich
Summary: The study investigated the effects of adding carbon nanotubes (CNTs) and fly ash (FA) on the properties of barium calcium stannate titanate (BCTS) ceramic-Portland FA cement composites. It was found that CNTs filled the pores of the composites, showing potential for monitoring structural health in concrete structures.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Qiwen Guo, Siyuan Liu, Xinpeng Men, Zhe Chen, Lei Yao, Geming Wang, Hongyang Zhao, Zhidong Lin, Qian Wu
Summary: In this study, an ultra-sensitive electrode modified with beta-cyclodextrin and graphene oxide was successfully prepared for the detection of biomolecules in aqueous solutions. Simultaneous detection of three biomolecules (ascorbic acid, dopamine, and uric acid) was achieved, and the electrical signals corresponding to each biomolecule were clearly identified using cyclic voltammetry and differential pulse voltammetry. The ultra-sensitivity of the electrode can be attributed to the formation of host-guest complexes between beta-cyclodextrin and the biomolecules. Furthermore, the modified electrode showed satisfactory selective recognition performance based on anti-interference experiments.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Yan Guo, Xiaobo Yang, Xingchen Liu, Xili Tong, Nianjun Yang
Summary: In this study, efficient hydrogen production from water splitting is achieved using Co-doped Rh nanoparticles as electrocatalysts. The results show that Co-doping reduces reaction barriers and enhances the adsorption capacity of reactants, resulting in excellent activity. In a two-electrode cell, the combination of fast oxidation reaction on the anode and efficient hydrogen evolution reaction on the cathode enables efficient water splitting for hydrogen production.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Nianjun Yang, Xin Jiang
Summary: Diamond electrodes have unique features, such as long-term chemical inertness, wide potential windows, and high microstructural stability. They can be prepared in microcrystalline or nanocrystalline form using chemical vapor deposition techniques. These electrodes have been widely applied in various electrochemical fields, including sensing, energy storage, and environmental degradation.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Lingbo Liu, Ling Lei, Keni Zeng, Kangbing Wu, Nianjun Yang
Summary: Red phosphorus (RP) nanoparticles with tuned surface chemistry were synthesized using a phosphorus-amine approach. In situ spectroscopic techniques were used to monitor the cleavage of P-O-P bond and the formation of P-O-C bond during the transition. RP nanoparticles grown on single-walled carbon nanotube (SWCNT) showed efficient sensing of p-phenylenediamine (PPD) in hair dyes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Jing Qian, Juan Yang, Yuanyuan Zhang, Ting Zeng, Qijin Wan, Nianjun Yang
Summary: In this study, a NiMn-layered double hydroxide (LDH)@poly-L-lysine (PLL) composite was prepared and utilized for the monitoring of tryptophan in different samples. The synthesized composite exhibited high stability and a flower-like morphology, and its electron transfer rate was greatly improved due to the introduction of PLL. The coordination promotion between NiMn-LDH and PLL contributed to the increased sensitivity of electrochemical response. The fabricated sensor displayed a wide linear response range and high anti-interference ability for tryptophan detection.
ANALYTICA CHIMICA ACTA
(2023)
Editorial Material
Chemistry, Physical
Nianjun Yang, Mauricio Terrones
Article
Chemistry, Physical
Chengzhe Liu, Fengjiao Guo, Qi Yang, Hongyu Mi, Chenchen Ji, Nianjun Yang, Jieshan Qiu
Summary: Rechargeable aqueous zinc-ion hybrid capacitors (ZHCs) have attracted attention due to their safety, cost effectiveness, and environmental compatibility. However, issues regarding dendrite growth and side reactions at the electrode-electrolyte interface hinder the large-scale application of ZHCs. This study introduces a negatively charged carboxylated chitosan-intensified hydrogel electrolyte (CGPPHE) to stabilize the zinc anode, leading to improved efficiency and durability of ZHCs.
Editorial Material
Chemistry, Multidisciplinary
Anke Krueger, Nianjun Yang, Robert J. Hamers
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Physical
Yiqiu Xiao, Siyong Li, Chong Peng, Nianjun Yang, Shetian Liu, Siyu Yu
Summary: This study designs and develops dual pseudocapacitive electrode/redox electrolyte systems for the construction of asymmetric supercabatteries. The different working potential windows of the two systems result in a high cell voltage of 2.0V. The synergistic effect of two redox species on the electrode and in the electrolyte leads to an enlarged capacitance and high energy and power densities for the supercabattery device.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yunfeng Guan, Ye Cong, Rong Zhao, Ke Li, Xuanke Li, Hui Zhu, Qin Zhang, Zhijun Dong, Nianjun Yang
Summary: In this study, an alloy engineering strategy is proposed to improve the chemical and electrochemical stability of Ti2C MXene, resulting in excellent capacitive performance and high chemical stability.
Article
Chemistry, Physical
Ling Lei, Jiaxi Yin, Kangbing Wu, Nianjun Yang
Summary: Ti3C2Tx nanoflakes with different lateral sizes and thicknesses were synthesized through acidic etching and intercalation treatment. The electrochemical response of the nanoflakes was found to be size and thickness dependent, mainly related to the oxygen content on their surface. A sensitive electrochemical sensor for the detection of p-nitrophenol was successfully constructed using nanoflakes with good dispersibility, high oxygen content, small size, and thin thickness.
Article
Chemistry, Analytical
Xiaoxian Hu, Jing Qian, Juan Yang, Xiaomin Hu, Yanjiao Zou, Nianjun Yang
Summary: Covalent organic frameworks (COFs) have attracted extensive attention as a newly emerging kind of porous material due to their fascinating structural features. In this study, a new type of core-shell metal-organic framework (MOF) @COF composites were synthesized through in situ growth of COF shell on a pre-synthesized core. The obtained MOF@COF composite exhibited a larger electrochemical active area and faster electron transfer kinetic compared to its single component. Moreover, it showed promising performance as a sensing material for the voltammetric detection of metol.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Bin Chen, Zhaofeng Zhai, Nan Huang, Chuyan Zhang, Siyu Yu, Lusheng Liu, Bing Yang, Xin Jiang, Nianjun Yang
Summary: In this study, expanded vertical graphene/diamond films with regular and ordered 0.7-nm layered channels were designed and synthesized to serve as an ideal model for understanding confined electrical double-layers (EDLs). Through various techniques such as in situ electrochemical Raman spectroscopy, electrochemical quartz crystal microbalance, and density functional theory calculations combined with three-dimensional reference interaction site method, a clear overall picture of confined EDLs at an atomic resolution was provided. The results show that the induced charges in electrode hosts have a high localization density, which is essential for the high energy storage efficiency of confined EDL capacitance. This research not only refines the mechanism of confined EDLs but also contributes to the understanding of nanoporous or layered materials in electrochemical energy storage.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jing Xu, Xin Jiang, Nianjun Yang
Summary: In the past few decades, nanometer-scale pores have been used for sensing biological molecules, especially in nanopore sequencing. Carbon nanopores, such as graphene and carbon nanotubes, have the advantage of rapidly sensing various biological molecules at single-molecule resolution and with reduced cost compared to other materials. This article provides an overview of the general issues in nanopore sequencing and focuses on the recent progress and achievements in using carbon nanomaterials for sequencing. Finally, future research directions using carbon nanomaterials for nanopore sequencing are discussed.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).
Article
Chemistry, Physical
Weikang He, Jingjing Li, Yuanyuan Zhang, Juan Yang, Ting Zeng, Nianjun Yang
Summary: A high-performance capacitive electrode is designed and grown on a flexible carbon cloth substrate, consisting of sulfur-doped NiMn-layered double hydroxide nanosheets and sulfur-doped NiCo-LDH nanowires. The electrode exhibits high gravimetric capacity, retention rate, and cyclic stability, making it suitable for assembling high-power and energy-density supercapacitors.
