Article
Chemistry, Physical
Changping Yu, Lili Zhang, Gang Zhou, Feng Zhang, Zichu Zhang, Anping Wu, Pengxiang Hou, Huiming Cheng, Chang Liu
Summary: Carbon nanotube-based derivatives with unique structure and physicochemical properties have been extensively researched. However, the controlled growth mechanism and synthesis efficiency of these derivatives are still unclear. In this study, a defect-induced strategy was proposed for the efficient heteroepitaxial growth of SWCNTs@h-BN films. Air plasma treatment was used to generate defects on the SWCNTs' wall, and atmospheric pressure chemical vapor deposition was performed to grow h-BN on the SWCNTs' surface. Controlled experiments and first-principles calculations revealed that the induced defects on the SWCNTs' wall serve as nucleation sites for efficient heteroepitaxial growth of h-BN.
Article
Engineering, Environmental
Muhammad Zulfiqar, Suriati Sufian, Nurul Ekmi Rabat, Nurlidia Mansor
Summary: This study presents the successful application of alkaline-based nanotubes photocatalyst in removing phenol, with excellent performance in adsorption mechanism and thermodynamic parameters. The rising temperature was found to be beneficial for phenol removal onto alkaline-based TNTs.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Christopher Kagenda, Jae Wook Lee, Fida Hussain Memon, Faheem Ahmed, Anupama Samantasinghar, Muhammad Wasim Akhtar, Abdul Khalique, Kyung Hyun Choi
Summary: The study investigated the effect of MWCNTs and MgO on the thermal conductivity of silicone rubber composites, highlighting the linear relationship between thermal conductivity increment and MgO loading. Functionalized MWCNTs acted as bridging agents to improve compatibility and adhesion, leading to active conductive pathways within the composite. The addition of MWCNTs resulted in an eightfold increase in thermal conductivity compared to the neat elastomer, showing promising potential as a replacement for traditional thermal interface materials.
Article
Chemistry, Multidisciplinary
Thomas Cossuet, Laetitia Rapenne, Gilles Renou, Estelle Appert, Vincent Consonni
Summary: An original fabrication process was reported to form open-ended TiO2 nanotubes using ZnO nanowires as positive templates. The differential crystallization process resulted in hexagonal-shaped TiO2 nanotubes with high crystalline quality. This approach allows for the integration of high-quality, open-ended TiO2 nanotubes with tunable length and wall thickness on a wide range of substrates.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Multidisciplinary Sciences
Morteza Safari, Jamal Mazloom, Komail Boustani, Ali Monemdjou
Summary: Metal oxide heterostructures have attracted significant attention in energy storage applications for their superior properties. In this study, magnetic Fe2O3@SnO2 heterostructures were successfully synthesized and their performance was enhanced by controlling the calcination temperature. Fe2O3@SnO2-600 exhibited excellent performance in supercapacitor applications, indicating its potential as a promising electrode material.
SCIENTIFIC REPORTS
(2022)
Article
Electrochemistry
Sooraj Sreenath, Ravishankar Suman, Noufal Merukan Chola, Vivek Verma, Rajaram K. Nagarale
Summary: A facile method to prepare fluorinated MWCNTs and metal ion co-doped gadolinium-doped ceria composite was reported. The materials exhibited good performance in a non-gassing electroosmotic pump, with the silver-doped material showing the best performance with an electroosmotic flux of 36 mu L min(-1) cm(-2) of water.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2021)
Article
Mechanics
Diego Becerra, Andres Cordoba, Jens H. Walther, Harvey A. Zambrano
Summary: Through atomic-level simulations, it is found that graphene coating significantly enhances water flow in nanochannels compared to hexagonal boron nitride (hBN) coating. The natural undulations of graphene coating further enhance water flow.
Article
Nanoscience & Nanotechnology
Nirmala Rani, Kanika Khurana, Neena Jaggi
Summary: "The current study focused on comparing the structural and electrical properties of MWCNTs/SnO2 nanocomposites synthesized through hydrothermal and co-precipitation methods. The nanocomposites prepared via hydrothermal method showed better electrical conductivity and crystal structure, making them suitable for various applications."
APPLIED NANOSCIENCE
(2021)
Article
Chemistry, Applied
Zhoufeng Bian, Sibudjing Kawi
Article
Chemistry, Physical
Nikita Dewangan, Jangam Ashok, Madhav Sethia, Sonali Das, Subhasis Pati, Hidajat Kus, Sibudjing Kawi
Article
Thermodynamics
F. Xu, Z. F. Bian, T. S. Ge, Y. J. Dai, C. H. Wang, S. Kawi
Article
Engineering, Environmental
Zhigang Wang, Ziwei Li, Yifan Cui, Tianjia Chen, Jiawei Hu, Sibudjing Kawi
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Engineering, Environmental
Tianjia Chen, Zhigang Wang, Lina Liu, Subhasis Pati, Ming Hui Wai, Sibudjing Kawi
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Applied
Xingyuan Gao, Ping Cai, Ziyi Wang, Xiaomei Lv, Sibudjing Kawi
Summary: CO2 utilizations and conversions play a significant role in reducing greenhouse gas emissions and regenerating industrial exhausts. Metal oxides, as catalysts, have been proven effective in adsorbing and activating CO2 based on surface acidity/basicity and oxygen defects. This review comprehensively summarizes the impacts of these physicochemical properties of metal oxides on CO2 adsorption and activation, with a focus on CO2 conversion activity, product yield selectivity, and catalyst stability in reforming and hydrogenation reactions. Additionally, the review explores the structure-performance relationships, reaction/deactivation mechanisms, and origins of surface acidity/basicity and oxygen defects.
TOPICS IN CATALYSIS
(2023)
Article
Engineering, Environmental
Guoqiang Song, Claudia Li, Wenjun Zhou, Libo Wu, Kang Hui Lim, Feiyang Hu, Tianchang Wang, Shaomin Liu, Zhifeng Ren, Sibudjing Kawi
Summary: This study reports a structure-reconstruction strategy based on a micropore-confined process to prepare yolk-shell catalysts with highly dispersed metallic nickel. The size of the nickel particles has a significant impact on the rates of methane decomposition, penetration of dissolved carbon, and growth of carbon nanotubes (CNTs), which provides an important route for the design of functionalized CDM catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Yingjie Guo, Zan Chen, Xue Hu, Yawei Du, Cuijia Duan, Claudia Li, Sibudjing Kawi, Yinhui Li
Summary: Imino hypercrosslinked polymers (NH-HCPs), amino hypercrosslinked polymers (NH2-HCPs), and carboxyl hypercrosslinked polymers (COOH-HCPs) were synthesized as highly efficient adsorbents for doxycycline hydrochloride (DOX) in water. The NH-HCPs exhibited the highest specific surface area and adsorption capacity, while the COOH-HCPs showed the strongest adsorption capability. Structural adjustments played a more significant role in improving adsorption performance compared to functional adjustments. The primary DOX adsorption mechanism involved hydrogen bonding and other mechanisms.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Xiaoyu Han, Tiantian Xiao, Maoshuai Li, Ziwen Hao, Jiyi Chen, Yutong Pan, Xiaohui Zi, Heng Zhang, Shibo Xi, Hui Ming Wai, Sibudjing Kawi, Xinbin Ma
Summary: CuGaZrOx solid solution catalysts show promise for the selective hydrogenation of CO2 to methanol. The structural complexity of the catalyst presents a challenge to understanding the nature of active sites. This study reveals that synergistic interactions between copper and gallium species enhance the capacity for CO2 adsorption/activation and promote the hydrogenation of CO2 to form methanol via a formate pathway.
Review
Chemistry, Physical
Zhikun Zhang, Ziyan Yang, Lina Liu, Yaru Wang, Sibudjing Kawi
Summary: This review provides a comprehensive overview of the catalytic performance and mechanism of single-atom catalysts (SACs) in the thermocatalytic conversion of CO2 to C1 chemicals. SACs offer advantages in performance tuning through the regulation of coordination environment. However, there are still limitations in current studies that need to be addressed in order to drive decarbonization and greenhouse gas cycling in industries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuepeng Hei, Zuojun Lu, Claudia Li, Jian Song, Bo Meng, Naitao Yang, Sibudjing Kawi, Jaka Sunarso, Xiaoyao Tan, Shaomin Liu
Summary: In this study, Ce0.8Y0.2O2-delta-BaCe0.8Y0.2O3-delta (YDC-BCY) hollow fiber (HF) membranes were developed and characterized for their hydrogen (H-2) permeation fluxes. By synthesizing YDC and BCY ceramic powders using the sol-gel method and fabricating YDC-BCY dual-phase ceramic HF membranes, it was found that the YDC/BCY molar ratio of 4:1 exhibited the highest hydrogen flux under certain conditions.
Meeting Abstract
Chemistry, Multidisciplinary
Plaifa Hongmanorom, Sibudjing Kawi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Sonali Das, Ashok Jangam, Sibudjing Kawi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Sonali Das, Ashok Jangam, Nikita Dewangan, Sibudjing Kawi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Meeting Abstract
Chemistry, Multidisciplinary
Nikita Dewangan, Madhav Sethia, Sonali Das, Ashok Jangam, Hidajat Kus, Sibudjing Kawi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2019)
