Article
Chemistry, Physical
Jiajie Wang, Ruiqi Guo, Wenxiang Zhu, Minqi Sheng
Summary: The construction of high-performance bifunctional self-supported electrodes is significant for promoting water splitting. This study presents a facile method to prepare a low-cost and robust self-supported electrode (Ni2P/MoP@CNTs-CC) that exhibits promising electrocatalytic performance for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Sara Naderizadeh, Giovanni Santagiuliana, Wei Tu, Derek Marsh, Emiliano Bilotti, James J. C. Busfield
Summary: Pressure sensors used in wearable and medical applications are often complex to design and have limited sensitivity. Researchers have developed a thermoplastic polyurethane/carbon nanotubes composite film through a simplified method. The sensors made from this film showed excellent sensitivity and durability, indicating their potential for use in wearable devices.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Patrycja Plocienniczak, Tomasz Rebis, Marek Nowicki, Grzegorz Milczarek
Summary: This study developed a green and simple method for fabricating multi-walled carbon nanotubes decorated with silver nanoparticles using lignosulfonate assistance. The silver nanoparticles showed strong electrocatalytic properties towards hydrogen peroxide reduction and enabled a wide linear range for detection. The material exhibited promising electrochemical performance for hydrogen peroxide sensing applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
He Wang, Chenhong Liu, Xiaoli Yang, Jiali Gu, Mengyuan Niu, Lin Yang, Zhengyu Bai
Summary: In this study, a CoFe2O4-NC electrocatalyst with excellent ORR activity and long-term stability was synthesized through the incorporation of CoFe2O4 nanoparticles in N-doped carbon nanotubes. The obtained electrocatalyst outperformed previously reported catalysts with a higher half-wave potential and continuous cycling. This work opens up a new direction for the development of low-cost and efficient ORR electrocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Laraib Kiran, Mehmet Kadri Aydinol, Syed Sakhawat Shah, Aneela Anwar, Syed Mustansar Abbas, Doruk Bahtiyar, Muhammad Siddiq, Abdul Rehman, Mohamed Ouladsmane, Muhammad Imran Shahzad
Summary: In this study, Cr2O3 nanocomposite with multi-walled carbon nanotubes (MWCNTs) was developed using an inexpensive and reproducible coprecipitation method to reduce volume changes and enhance electronic conductivity and mechanical strength. In-situ polymerization of aniline monomer was employed to coat the nanocomposite with polyaniline (PANI), improving lithium-ion conductivity and electron transportation, leading to excellent stability. The homogenous nanocomposite of Cr2O3-MWCNTs and PANI showed good electrochemical performance, with a discharge capacity of 815 mAh g-1 at 100 mA g-1 and a coulombic efficiency of 97.5%.
Article
Chemistry, Physical
Shuang Zong, Juan Du, Aibing Chen, Xueqing Gao, Kabir O. Otun, Xinying Liu, Linda L. Jewell
Summary: In this study, N-doped crumpled carbon nanotubes (NCTs) were synthesized using a rapid template co-assembly method. The surface morphology of NCTs was adjustable by changing the amount of carbon and nitrogen precursor and reaction temperature. The optimized NCTs showed high capacitance, outstanding cycling stability, and good rate performance, indicating great potential for supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Shijie Gai, Xiaolin Wang, Runze Zhang, Kun Zeng, Shoulei Miao, Yiqun Wu, Bin Wang
Summary: The morphology adjustment and functional doping optimization of polypyrrole (PPy) significantly improve its gas sensing performance. Utilizing one-step in situ polymerization, uniform dispersed PPy-0.5TcCoPc nanorods with a 3-D network structure were prepared using the electrostatic interaction between tetra-beta-carboxylate cobalt phthalocyanine tetrasodium salt (TcCoPcTs) and pyrrole (Py) molecules. The resulting PPy-0.5TcCoPc hybrid exhibits superior NH3-sensing properties, including ultrafast response/recovery time, low detection limit, excellent gas selectivity, and long-term stability.
Article
Engineering, Electrical & Electronic
A. Gorshkova, M. Gorshkov, Nishant Tripathi, K. Tukmakov, V. Podlipnov, D. Artemyev, Prabhash Mishra, V. Pavelyev, Vladimir Platonov, N. A. Djuzhev
Summary: This study focuses on the development of a high-speed NO₂ sensor using functionalized Single Walled Carbon Nanotubes (SWNTs). The SWNTs are functionalized with the enzyme N-benzyloxycarbonylglycine (Z-Gly-OH) to enhance their sensing properties. The functionalization process is optimized and analyzed, and the resulting SWNTs exhibit modified properties while maintaining their electronic properties. The functionalization with Z-Gly-OH allows for the presence of amino groups on the nanotubes' surface, which can affect sensor sensitivity. The gas sensing performance of the developed sensor is tested for NO₂ gas concentration, showing fast response/recovery times and high sensitivity.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Energy & Fuels
Huizi Li, Tingyao Du, Qin Wang, Jianyu Guo, Siyong Zhang, Yan Lu
Summary: A novel carbonization method using H2SO4 as a dehydrating agent to prepare graphitized carbon material with O doping is reported. Starch is used as the carbon source. The carbon material exhibits a specific capacitance of 354 F g-1 and a capacitance retention of 110.2% after 20,000 cycles in 1 M H2SO4 solution. N-doped carbon nanotubes are grown on the surface of the carbon material, forming a three-dimensional conductive network structure and achieving a specific surface area of 355 m2/g. The N-doped carbon material exhibits a specific capacitance of 759 F g-1 and a capacitance retention of 95.8% after 10,000 cycles in 1 M H2SO4 solution.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Shuming Li, Yuzhe Wang, Yu Ding, Yu He, Yuyang Zhang, Shuni Li, Jing Zhang, Yu Chen
Summary: The synthesis of carbon-based metal-free catalysts with high electroactivity for the oxygen reduction reaction is a challenge, but the hollow N-doped carbon nanoflowers synthesized in this study show promising results in terms of activity, stability, and methanol tolerance compared to benchmark catalysts like Pt/C.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Manrong Shen, Xiufang Lin, Wenhao Xi, Xiaojin Yin, Bifen Gao, Liwen He, Yun Zheng, Bizhou Lin
Summary: Rational design and facile preparation of Co@pNC, a mesoporous waffle-like N-doped carbon framework with embedded Co nanoparticles, exhibit excellent bifunctional ORR/OER electrocatalytic activity. The Co@pNC shows a half-wave potential of 0.85 V for ORR and a small potential gap of 0.70 V between ORR E1/2 and OER potential at 10 mA cm-2. The assembled battery using Co@pNC demonstrates high peak power density, energy density, and superb rate capability, highlighting the importance of a facile component and architecture strategy for high-performance carbon-based electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Maalavika S. Iyer, Ilangovan Rajangam
Summary: Composites of graphene variants were synthesized and their electrochemical performance was systematically analyzed. The results showed that physical properties played an important role in the performance, and nitrogen doped counterparts exhibited enhanced conductivity and capacitive behavior, as well as good cyclability.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Elaiyappillai Elanthamilan, Arumugam Ganeshkumar, Sea-Fue Wang, Rajendran Rajaram, Selvakumar Thriambakeshwar, Mathiyazhagan Velusamy
Summary: In this article, a polydopamine/polyaniline decorated CNT composite (PDA/PANI@CNT) was synthesized for hybrid supercapacitor application. The structural and morphological features of the composite were characterized using various physicochemical techniques. The supercapacitive performance of the PDA/PANI@CNT electrode was evaluated and showed high specific capacitance and capacitance retention, indicating its potential as an electrode material for supercapacitors. Additionally, the biocidal potency of the composite was found to be better compared to PDA and PDA/PANI, suggesting the synergistic effect of CNT in enhancing the biological properties of PDA/PANI.
Article
Electrochemistry
Indherjith Sakthinathan, Naoki Yamasaki, Davide Barreca, Chiara Maccato, Tadaharu Ueda, Tim McCormac
Summary: Wells-Dawson type polyoxometalate (POM) [(n-C3H7)4N]4S2W18O62 (S2W18) was successfully immobilised with a conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), using the chronocoulometry technique. The immobilised films exhibited pH-dependent redox activity and demonstrated the stability of S2W18 in the thin layer. The S2W18-doped PEDOT film showed excellent performance in bromate ion sensing with a detection limit of 4 μmol L-1 and high selectivity at a low reduction potential of -0.1 V.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Muqun Wang, Yuxuan Qin, Wei Gao, Shaofeng Liang
Summary: This study explores the preparation method of high-performance electromagnetic shielding materials, such as polymer-based materials mixed with MWCNT/MCHMs to prepare composites, and investigates the effect of different filler contents on their properties. The results show that increasing the filler content can enhance the electrical conductivity and electromagnetic shielding effectiveness of the composite materials.
