Article
Nanoscience & Nanotechnology
Chen Su, Mingyu Li, Yongfeng Zhang, Tianqing Liu, Cong Ren, Peipei Li, Xiaoqiang Yin, Lu Zhang, Min Zhang, Weiwei Wu
Summary: In this study, a hierarchical CuO/Co3O4 nanowire heterostructure was synthesized using a feasible hydrothermal technique, and a high-performance gas sensor with strong response to ethylene glycol was developed.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Fasong Yang, Zhengang Guo, Bo Zhang, E. Lei
Summary: The Co3O4/CuO composite nanowire array efficiently improves both HER and OER reactions, providing numerous reactive sites on the electrode surface for water splitting.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Analytical
Hairui Fang, Sheng Li, Huamin Zhao, Jin Deng, Dong Wang, Jing Li
Summary: Composite sensing materials with complex hierarchical structures exhibit better performance in chemiresistive sensors due to rich defects induced by the hierarchical structures. The hierarchical structure was controllably constructed by adjusting the composition of CuO and Co3O4, promoting the enrichment of lattice oxygen confirmed by XPS, leading to enhanced NO2 sensing performance. The improved sensing performances are attributed to the rich lattice oxygen with chemical activity induced by the hierarchical structure, providing new ideas for the synthesis of high-performance composite sensing materials.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Yawei Yu, Xiulan Hu, Shuai Wang, Handan Qiao, Zeyu Liu, Kefan Song, Xiaodong Shen
Summary: The design of 3D core-shell heterostructures is an efficient method to achieve high mass specific capacity of electroactive materials. In this work, porous Ni4Co1-OH nanosheets with high mass specific capacity were obtained by electrochemically induced phase reconstruction, demonstrating excellent alkaline energy storage performance.
Article
Chemistry, Physical
You Xu, Youwei Sheng, Mingzhen Wang, Tianlun Ren, Keke Shi, Ziqiang Wang, Xiaonian Li, Liang Wang, Hongjing Wang
Summary: In this study, CuO@MnO2/CF electrocatalyst was designed for electrochemical nitrate-to-ammonia conversion. The electrocatalyst possesses abundant active sites and facilitates mass transfer, while the CuO/MnO2 heterogeneous interface accelerates the reaction kinetics by accumulating nitrate ions. The experimental results show high nitrate conversion rate, ammonia faradaic efficiency, and ammonia selectivity in the presence of the electrocatalyst.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Hao Jin, Shuo Liu, Lang Pei, Gao Li, Zhanfeng Ma, Wangfeng Bai, Shiting Wu, Yong-Jun Yuan, Jiasong Zhong
Summary: An elegant multi-step templating strategy was developed for the fabrication of vertically aligned CoP@Ni2P nanowire-nanosheet architecture on Ni foam, leading to an excellent HER catalyst with dense heterointerfaces and superior catalytic performance.
Article
Chemistry, Physical
Sourav Kumar Kajli, Debdutta Ray, Somnath C. Roy
Summary: One-dimensional nanostructures such as nanowires exhibit enhanced photoresponse compared to bulk materials due to unidirectional transport reducing recombination and scattering of charge carriers. CuO and Cu2O are promising transition metal oxides for efficient UV and visible light detection, forming type-II heterojunction for charge separation. Core-shell CuO/Cu2O nanowires show superior performance in terms of responsivity and detectivity, attributed to the Ohmic junction at Pd-Cu2O interface and type II heterojunction at CuO/Cu2O interface.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jizhuang He, Jiahua Li, Yunfei He, Yin Ren, Sisi Li, Shulin Xing, Rongli Gao, Wei Cai, Chunlin Fu
Summary: A transmission layer/ferroelectric layer/transmission layer shell-core nanowire array was constructed to improve the photoelectric conversion efficiency of bismuth ferrite (BFO). The device showed a photoelectric conversion efficiency of 0.93%, which is significantly higher than previous reports on BFO-based photovoltaic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Jinli Qiu, Cailiang Yue, Wenting Zheng, Fuqiang Liu, Junjie Zhu
Summary: A facile approach was employed to prepare Fe2O3/Co3O4 nanosheet arrays on nickel foams, exhibiting high efficiency in photocatalytic degradation of SMZ. The introduction of Ni foam helped with electron transfer, and Fe2O3/Co3O4 @NF showed effective and stable catalytic performance for SMZ.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Physical
Yi-Wen Long, Hong-Yan Zeng, Hao-Bo Li, Sheng Xu, Shi-Bing Lv, Zhen Li, Zi-Feng Tian
Summary: The pineapple flower-like hierarchical Co3O4@CoAl-layered double hydroxides were designed and synthesized for supercapacitors, showing superior electrochemical performance, particularly in terms of energy density, rate capability, and long-term cycle stability.
APPLIED CLAY SCIENCE
(2021)
Article
Electrochemistry
En-Syuan Lin, Feng-Sheng Chao, Chen-Jui Liang, Chi-Jung Chang, Alex Fang, Chung-Kwei Lin, Yu-Cheng Chang, Chien-Yie Tsay, Jerry J. Wu, Chin-Yi Chen
Summary: The paper investigates the supercapacitive properties of a Co/ZnCo oxide composite with a core-shell nanostructure prepared by a hydrothermal method. The synthesized core-shell structure shows high specific capacitance value, good capacitance retention, and promising potential in pseudocapacitor applications.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Nanoscience & Nanotechnology
Jianfei Yao, Fang Dong, Hua Feng, Zhicheng Tang
Summary: Hierarchical Co3O4/MnOx and MnOx/Co3O4 nanoarrays were successfully prepared on Ni foam by primary and secondary hydrothermal processes, showing excellent catalytic performance in toluene oxidation. The monolithic MnOx/Co3O4/NF catalyst exhibited the highest activity and stability, potentially replacing noble-metal catalysts. XPS and H-2-TPR analysis confirmed the presence of active species and good interaction between metals, while in situ DRIFTs results revealed key intermediates and reaction paths in the toluene combustion process.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Keng Xu, Chun Lai, Yanxing Yang, Hang Zhou, Chengwu Zhou, Yong Yang, Ting Yu, Cailei Yuan
Summary: By regulating the porosity of metal oxide arrays, the gas-sensing performance was enhanced, exhibiting excellent detection ability towards acetone.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Jiefei Ding, Depeng Zhao, Tong Xia, Qing Xia, Guanglong Li, Yingdong Qu
Summary: Hybrid Co3O4@Ni3S2 nanostructures obtained via a hydrothermal strategy and subsequent electrodeposition process show high specific capacity and excellent rate capability as electrodes for a hybrid supercapacitor. The assembled device delivers a high energy density and the electrode also exhibits efficient overpotential for oxygen evolution reaction as an electrocatalyst.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Zhonghan Feng, Jiayan Pu, Xinyue Zhang, Wenxiu Zhang, Maosheng Liu, Liang Cui, Jingquan Liu
Summary: The heterostructured CoO/Co3O4 nanowire array on Titanium mesh, fabricated via a controllable calcination treatment, serves as an efficient electrocatalyst for the hydrogen evolution reaction. It exhibits high catalytic activity and long-term durability in both alkaline and saline electrolytes, suggesting potential for the design of high-performance 3D-nanostuctured catalysts with abundant hetero-junction interfaces.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Sharmin Sultana, Malik Abdul Rub, Marzia Rahman, Shahed Rana, Mohammad Majibur Rahman, Md Anamul Hoque, Yousef G. Alghamdi, Abdullah M. Asiri
Summary: In this study, the aggregation behaviors of PVA and TTAB in alcohols/diols media were investigated using conductivity measurements. The physico-chemical parameters and thermodynamic properties were determined. The results showed that the CMC values varied in different solvents, indicating the significant influence of solvents on the micelle formation of TTAB + PVA mixture. It was also found that PVA molecules interacted exclusively with TTAB through hydrogen bonding, ion-dipole, and hydrophobic interactions.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Md. Anamul Hoque, Shamim Mahbub, Md. Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization behavior of CTAB and BSA mixture in different diols media was studied. The critical micelle concentration (cmc) values of the mixture decreased with increasing temperature and followed the order: cmc(1,5-PD)>cmc(1,2-PrD)>cmc(2,3-BD). The degree of micelle ionization (a) increased with carbon chain length and temperature. The thermodynamic parameters and the contribution of the solvent were also evaluated.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Polymer Science
Mohammad Asad, Muhammad Nadeem Arshad, Abdullah M. Asiri, Mohammed M. Rahman, Snigdha Kumaran, Mohammed Musthafa Thorakkattil Neerankuzhiyil
Summary: Chitosan-bounded copper (chitosan-Cu) was utilized for the green synthesis of novel ferrocenated spiropyrrolidine hybrids. A one-pot three-component 1,3-dipolar cycloaddition reaction using tyrosine, glycine, and isatin derivatives was employed to form spiropyrrolidines from 1-(4-bromophenyl)-ferrocene-prop-2-en-1-one and azomethine ylides. The synthesized spiropyrrolidines showed good antibacterial activity against Gram-positive and Gram-negative bacterial strains.
Review
Polymer Science
Guravtar Singh Mann, Naved Azum, Anish Khan, Malik Abdul Rub, Md Imtaiyaz Hassan, Kisa Fatima, Abdullah M. Asiri
Summary: Global climate change has already caused various environmental effects and led to a shift in focus towards sustainable materials. Green composites, which combine renewable fibers with polymers, offer a wide range of applications and superior features compared to conventional materials.
Article
Chemistry, Analytical
Sulaiman Y. Alfaifi, Waheed Abiodun Adeosun, Abdullah M. Asiri, Mohammed M. Rahman
Summary: This study proposed the use of doped Co3O4-ZnO nanorod materials for the detection of aspartic acid using differential pulse voltammetry. The synthesized composite exhibited excellent properties for the detection of aspartic acid, including low limit of detection, high sensitivity, and wide linear range. The developed sensor based on Co3O4-ZnO nanorod material showed repeatable and stable current response for aspartic acid, with no interference from other electroactive compounds.
Article
Polymer Science
Aftab Aslam Parwaz Khan, Mallikarjunagouda B. Patil, Laxmibai P. Rathod, Shivalila G. Vader, Pankaj Raizada, Pardeep Singh, Maha M. Alotaibi, Mohammad Omaish Ansari, Anish Khan, Naved Azum, Malik Abdul Rub, Muhammad Nadeem Arshad, Abdullah M. Asiri
Summary: The study assessed the potential of nanocomposite membranes (NCMs) made of sodium alginate and embedded with synthesized zeolitic imidazole framework-8 (ZIF-8) as fillers for separating gaseous mixtures generated by methane reforming. ZIF-8 crystals were synthesized through hydrothermal synthesis, with sizes ranging from 50 to 70 nm. NCMs with 15% filler loading (synthesized ZIF-8) outperformed neat polymer membranes in terms of H-2 permeability and selectivity, achieving a purity of up to 95%. However, NCMs did not perform better than neat polymer membranes in separating gas mixtures. The combination of ZIF-8 and sodium alginate as fillers is a new and worth investigating.
Article
Polymer Science
Esraa M. Bakhsh, Sher Bahadar Khan, Nujud Maslamani, Ekram Y. Danish, Kalsoom Akhtar, Abdullah M. Asiri
Summary: In this study, CMC/CuO-TiO2 beads were developed as a catalyst for the reduction of organic and inorganic contaminants. These beads demonstrated excellent catalytic activity and stability.
Article
Polymer Science
Muhammad Tariq Saeed Chani, Khasan S. Karimov, Tahseen Kamal, Noshin Fatima, Mohammed M. Rahman, Abdullah M. Asiri
Summary: Polymeric rubber and organic semiconductor H2Pc-CNT composite-based shockproof deformable infrared radiation (IR) sensors were fabricated using a rubbing-in technique. The sensors showed decreased resistance and impedance when exposed to IR irradiation, and the temperature coefficients of resistance (TCR) were 1.2 and 1.1 for the surface-type and sandwich-type sensors, respectively. The high TCR value and novel composition of the H2Pc-CNT composite make these devices attractive for bolometric applications, and their easy fabrication and low-cost materials make them commercially viable.
Article
Chemistry, Physical
Tahir Ali Sheikh, Abdullah M. Asiri, Amna Siddique, Hadi M. Marwani, Md. Rezaur Rahman, Muhammad Nadeem Akhtar, Mohammed M. Rahman
Summary: A novel electrochemical current-potential (I-V) approach was developed using a highly calcined binary metal oxide (Er2O3@NiO) semiconductor nanocomposite to detect and degrade toxic chemicals in aqueous medium. The modified glassy carbon electrode based on this semiconductor nanocomposite showed selectivity towards m-tolyl hydrazine (m-Tolyl HDZN) and good affinity towards other interfering toxic chemicals. Analytical parameters were optimized and the limit of detection (LOD) for m-Tolyl HDZN was calculated.
Article
Materials Science, Multidisciplinary
H. Mohit, Sanjay Mavinkere Rangappa, Krittirash Yorseng, Suchart Siengchin, Hadi M. Marwani, Anish Khan, Abdullah M. Asiri
Summary: The effect of chemically treated and untreated water hyacinth/pineapple leaf, titanium carbide nanoparticles, Innegra, and carbon fabric reinforcement on the characteristics of polyester hybrid composites was studied. The chemically treated fibers showed excellent bonding with the fillers and textiles, as observed from various analysis techniques. The use of artificial neural network (ANN) for modeling the material characteristics was also investigated in this study.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Physics, Applied
Aftab Aslam Parwaz Khan, Z. Fadil, Pankaj Raizada, Pardeep Singh, Maha Alotaibi, Mohammad Omaish Ansari, Anish Khan, Abdullah M. Asiri, Chaitany Jayprakash Raorane
Summary: A monolayer anthracene-like nanostructure was studied through Monte Carlo simulations to determine its compensation temperature and magnetic hysteresis cycle. The effects of exchange coupling on compensation and transition temperatures were discussed. The study also investigated the magnetic hysteresis cycles and surface of multi-loop hysteresis with respect to strong exchange coupling and temperature parameters. This research has significant implications for multi-state memories and nanotechnology.
Review
Chemistry, Multidisciplinary
Umer Shahzad, Hadi M. Marwani, Mohsin Saeed, Abdullah M. Asiri, Mohammed M. Rahman
Summary: Due to their unique two-dimensional layered microstructure, MXenes are considered promising candidates for addressing energy and environmental issues, thanks to their numerous functionalities on the surface and excellent electrical, thermal, and optical features. Altering the dimensions, structure, surface chemistry, and chemical composition of MXenes can enhance their energy conversion and storage capabilities. Therefore, it is crucial to understand the relationship between structure and property from an applied perspective. This study reviews the synthesis, properties, and potential applications of MXenes and discusses their structural, chemical, optical, mechanical, and thermal properties, as well as their applications in photocatalysis, gas sensing, supercapacitors, electrocatalysis, and environmental remediation. It also highlights the progress and future prospects of MXene-based composites, providing valuable insights for scientists in academia and material sciences.
Article
Polymer Science
Khasan S. Karimov, Muhammad Tariq Saeed Chani, Noshin Fatima, Abdullah M. Asiri, Mohammed M. Rahman
Summary: Optimized surface-type impedimetric and capacitive proximity sensors have been fabricated on paper substrates using rubbing-in technology. These sensors can detect objects by sensing changes in impedance and/or capacitance when the object approaches, and they can be widely used in various fields due to their low cost, easy fabrication, and environmentally friendly materials.
Review
Chemistry, Multidisciplinary
Hafsah A. Klfout, Abdullah M. Asiri, Khalid A. Alamry, Mahmoud A. Hussein
Summary: Polybenzoxazine (PBz) is an excellent resin with diverse applications. The peculiar properties of benzoxazines have attracted the attention of researchers worldwide. However, petroleum-based benzoxazines are facing environmental concerns, leading to the research and development of bio-based alternatives. Bio-based polybenzoxazine, epoxy, and polysiloxane-based resins have gained interest in recent years due to their anticorrosion, eco-friendly, affordable, and low water absorption properties. This review provides an overview of polybenzoxazine, focusing on the advances in synthesizing bio-based polybenzoxazine, their properties, and their use in coating applications.
Article
Chemistry, Multidisciplinary
Mohammad Mahboob Alam, Serag Eldin I. Elbehairi, Ali A. Shati, Rania A. Hussien, Mohammad Y. Alfaifi, Azizah M. Malebari, Mohammad Asad, Ahmed A. Elhenawy, Abdullah M. Asiri, Ali M. Mahzari, Reem F. Alshehri, Syed Nazreen
Summary: Synthetic modification of eugenol, a natural anticancer agent, resulted in the production of new 1,3,4-oxadiazole analogues as inhibitors of thymidylate synthase. Compound 9 and 17 showed promising cytotoxicity against breast cancer and prostate cancer cells, without any side effects.
NEW JOURNAL OF CHEMISTRY
(2023)
