Article
Chemistry, Multidisciplinary
Fuqiang Shao, Shuke Li, Yanchao Xu, Yang Jiao, Jianrong Chen
Summary: The study successfully synthesized MnO2-3 with high discharge capacity and low polarization through a molten salt method and plasma technology, showing enhanced charge transport and increased active sites. This method has great potential in the field of electrochemical energy storage.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Electrochemistry
Sara Yaseen, Abdul Ghafar Wattoo, Abid Inayat, Tauseef Shahid, Mohammed Rafi Shaik, Mujeeb Khan, Zhenlun Song, Syed Mustansar Abbas
Summary: This study presents the synthesis of bimetallic oxide (NiO/Mn2O3) as a positive electrode material for supercapacitor applications. The optimized composition, structure, and morphology of the material result in exceptional electrochemical performance. The unique bipyramid-like morphology provides a large specific surface area and active sites for efficient ion transfer. The NiO-50 % Mn2O3 electrode exhibits the highest specific capacitance and long-term cycling stability, making it a promising candidate for supercapacitor electrodes.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Hilal Pecenek, Fatma Kilic Dokan, M. Serdar Onses, Erkan Yilmaz, Ertugrul Sahmetlioglu
Summary: This research reports a facile and rational synthesis procedure to fabricate a high-performance supercapacitor electrode. The NiO/MnO2/CNT composite exhibits a wonderfully stratified flower-like morphology and shows high specific capacitance and good cyclic stability.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Physical
Maha Alanazi, Taher Ghrib, Filiz Ercan, Mizna Alsubaie, Tuna Demirci, Omer Kaygili, Tarek S. Kayed, Ismail Ercan
Summary: Heterojunctions of alternating MnO2 and NiO thin films were successfully synthesized and characterized. Increasing the number of NiO/MnO2 heterojunctions improves the electrical conductivity and specific capacitance, while reducing the bandgap.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Rahul Singhal, Bhagirath Saini, Monica Kiehnle-Benitez, Thomas Sadowski, Christine Broadbridge, Jules Scanley, Peter K. LeMaire, Rakesh K. Sharma
Summary: Composites of MnO2/MWCNTs were prepared using a one-pot hydrothermal method, and their physical characteristics and electrochemical performance were evaluated. The results showed that MnO2 was uniformly entangled with MWCNTs, and the composite materials exhibited high specific capacitance at a current density of 1 A/g.
Article
Crystallography
Xiaoli Wang, Yin Wang, Xinyu Zhao
Summary: In this study, a facile, cost-efficient, and green synthesis technique was used to design a novel energy-storage device to address the intermittent nature of renewable energy sources. The device, which consists of two-dimensional nanosheets and conductive metal scaffolds, exhibits higher specific capacitance and excellent cycling performance.
Article
Chemistry, Physical
Hilal Pecenek, Fatma Kilic Dokan, M. Serdar Onses, Erkan Yilmaz, Ertugrul Sahmetlioglu
Summary: This study reports a compressible supercapacitor electrode with high performance and compressibility, suitable for flexible electronics. The electrode is prepared by coating NiO/MnO2/CNT composite onto a sponge, demonstrating excellent cycling stability and mechanical stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Shichao Huang, Xueyu Zhang, Xijia Yang, Liying Wang, Xuesong Li, Wei Lu
Summary: The study utilizes a simple and low-cost preparation strategy to grow MnO2 nanosheets on carbon foam for the synthesis of electrodes, resulting in a composite material with excellent electrochemical performance. The composite material exhibits good cycling stability in a three-electrode system and achieves high energy density and specific capacitance.
Article
Materials Science, Multidisciplinary
R. Ramesh Kannan, N. Lenin, A. Aseema Banu, M. Sivabharathy
Summary: In this study, MnO2 is tailored in MWCNT for supercapacitor applications. The developed MnO2/MWCNT nanocomposites exhibit high energy storage capacity, with the hexagonal structure of graphite and the tetragonal structure of birnessite type MnO2 confirmed by XRD peaks. TEM analysis reveals the presence of high purity manganese nanoparticles on the MWCNT sidewalls. CV studies show that the composite electrode's specific capacitance surpasses 314F/g, demonstrating the potential of the tailored MnO2/MWCNT nanocomposites as the best electrode material for supercapacitor applications.
Article
Chemistry, Physical
Feng Chen, Yuchen Chi, Haifeng Zhang, Fei Ma, Fengxiang Qin
Summary: Novel band-gap shrinked NiO@Co3O4 nanotube arrays have been successfully fabricated via a two-step synthesis route, delivering superior specific capacitance and outstanding cycling stability. Density functional theory calculations reveal that the disappearance of the band-gap contributes significantly to the enhanced conductivity and capacitive charge storage performance of the composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Guangdi Nie, Yaxue Luan, Zongkui Kou, Jiangmin Jiang, Zhenyuan Zhang, Na Yang, John Wang, Yun-Ze Long
Summary: This study successfully enhanced the energy density of MnO2-based supercapacitors through the design of fiber and particle structures in nanotubes, providing a new approach to address the issues of capacity and voltage window.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Chunyan Li, Pil Gyu Choi, Yoshitake Masuda
Summary: NiO nanosheets were synthesized using a facile solvothermal method and used as gas sensors to analyze the exhaled biomarker of psychological stress, allyl mercaptan (AM) gas. MnO2 nanosheets were also synthesized onto the surfaces of the NiO nanosheets to enhance gas-sensing performance. The gas-sensing response of the NiO nanosheet sensor was found to be higher compared to the MnO2@NiO nanosheet sensor.
Article
Chemistry, Multidisciplinary
Jing Zhao, Botao Zhu, Guijin Yang, Yujun Fu, Yanna Lin, Jinyun Li
Summary: Defect engineering was utilized to improve the electrochemical performance of MnO2 ultra-thin nanosheets loaded on Ni foam as a supercapacitor electrode. The study demonstrated high specific capacitance and excellent cycling performance, as well as the practical application of an asymmetric supercapacitor with promising electrochemical stability in 1 M Na2SO4 electrolyte. This research provides a simple method to enhance the performance of transition metal oxide electrodes in supercapacitors by introducing defects.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Johnson William, I. Manohara Babu, G. Muralidharan
Summary: Ag incorporated NiO/CeO2 ternary mixed oxides were synthesized and their structural, morphological and electrochemical characteristics were analyzed. The results demonstrate that Ag incorporated NiO/CeO2 exhibits superior electrochemical performance, making it a suitable candidate for supercapacitor electrode fabrication.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jahangeer Ahmed, Tansir Ahamad, Saad M. Alshehri
Summary: This study focuses on the synthesis of low-cost electrocatalysts, i.e. reduced graphene oxide (rGO) supported CuMoO4 nanoparticles (CuMoO4 NPs@rGO nanocomposites), for electrochemical water splitting reactions particularly OER. The prepared materials show superior OER activity compared to pure CuMoO4 nanoparticles.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)