Article
Materials Science, Multidisciplinary
Rongshuo Guo, Huiyuan Yang, Linghua Jin, Ruibin Wang, Ye Zhang
Summary: A composite supercapacitor electrode material, MnO2 decorated cobalt-iron Prussian blue analogue (CoPBA), has been successfully designed and fabricated through a facile precipitation method. The encapsulation of MnO2 onto CoPBA surface improves electrochemical performances by increasing electrical conductivity and specific capacitance. The maximum specific capacitance of CoPBA@MnO2 reaches 945F g(-1) at 1 A/g, which is 3.2-fold and 6.7-fold higher than that of pure CoPBA and MnO2, respectively. This study provides a valuable reference for the design of high performance electrode materials with simplicity and low cost.
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, Analytical
Lin Tong, Chunxia Wu, Junxian Hou, Zhixiao Zhang, Jiayuan Yan, Guangshuo Wang, Zongqi Li, Hongwei Che, Zhenguo Xing, Xiaoliang Zhang
Summary: In this work, hollow mesoporous PPy microspheres were prepared as a support structure, and hollow mesoporous PPy@MnO2 composites were successfully synthesized. The unique heterogeneous structure of the composite enhances its stability, electron transport, and active sites. The synthesized electrode exhibits outstanding electrochemical properties and the supercapacitor constructed using this material achieves a high energy density.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Yifan Liu, Chaochao Yu, Hongwei Che, Zengcai Guo, Jingbo Mu, Xiaoliang Zhang, Aifeng Liu
Summary: By decorating Ag nanoparticles onto CoAl LDH, this study successfully improved the specific capacities and capacity retention of the electrode, enhanced the electrical conductivity, and promoted the diffusion kinetics of electrolyte ions and electrochemical reaction activity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Lina Chen, Jiafeng Wan, Xinyue Feng, Haolin Shi, Pan Liu
Summary: In this study, zeolite imidazole framework 67 (ZIF-67)-derived Co2NiO4 cubes decorated with flower-like gC3N4 nanosheets (CN) were reported as novel electrode materials for supercapacitors with excellent capacitance and cycling stability. The addition of different amounts of g-C3N4 nanosheets effectively improved the electrochemical performance of the composite material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
B. Padmadevi, A. Pugazhendhi, Amany Salah Khalifa, Rajasree Shanmuganathan, T. Kalaivani
Summary: The novel MnO2-CuO-BaO (MCB) spherical nanocomposite was successfully synthesized by a facile hydrothermal method at 80 degrees C. The nanocomposite exhibited good crystallinity and electrochemical performance, showing promise as an electrode material for supercapacitor technology.
PROCESS BIOCHEMISTRY
(2021)
Article
Chemistry, Physical
Grece Abdallah, Jean -Marc Giraudon, Nicolas Nuns, Ahmed Addad, Rino Morent, Nathalie De Geyter, Jean-Frallois Lamonier
Summary: Ce-modified MnO2 was successfully synthesized using a simple and inexpensive redox method. The catalyst calcined at 400 degrees Celsius showed the best catalytic activity in the total oxidation of HCHO with a temperature of 50 degrees Celsius for 50% conversion of HCHO to CO2. The calcination step at 400 degrees Celsius enhanced the Ce-O-Mn surface interactions and the presence of Ce4+/3+ species, resulting in high activity in HCHO oxidation.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Jing Ran, Yafei Liu, Tiantian Yang, Huixia Feng, Huiying Zhan, Haixiong Shi
Summary: The MnO2@MoS2/RGO composite electrode material is prepared by using MoS2/RGO as the conductive substrate and MnO2 as the active substance particles. The composite electrode has excellent specific capacitance and stable cyclic stability, which can meet the demand for new energy. With a cycle stability of 88.5% after 5000 cycles, it has become a hot topic in the research of materials for supercapacitor electrodes.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Qian Rong, Chao Yuwen, Yingkai Liu, Yuanrong Liu, Chunyang Wang, Yang Wang, Ding Zhang, Zhen Wen
Summary: Developing highly robust and efficient electrode materials is crucial for increasing the energy density of supercapacitors. This study presents an efficient catalyst with monodispersed Mn single-atoms embedded in carbon nanotubes (Mn-CNTs), which enhances the electrode performance of supercapacitors. The introduction of Mn single-atoms leads to higher specific capacitance and energy density.
Article
Chemistry, Physical
Que Thi Nguyen, Umesh T. Nakate, JinYu Chen, Soojin Park, Sungjune Park
Summary: Overcoming the limitation of low energy density is a challenge for supercapacitor electrode materials. Transition metal-based pseudocapacitors (PCs) have been utilized to achieve higher performance by boosting capacitance through Faradaic reversible redox reaction. This study demonstrates enhanced supercapacitor performance using nanostructured ceria and cobalt oxide active materials, with high conductivity and stable reversible oxidation states, leading to improved capacitance and stability.
APPLIED SURFACE SCIENCE
(2023)
Article
Polymer Science
Juan Huang, Kejia Wu, Hui Bai, Huabo Huang, Xiaoqing Zhang, Yanbo Liu, Chuanxi Xiong
Summary: The study constructed PANI/MnO2 composite material by adding manganese sulfate, which showed higher specific capacitance than bare PANI and demonstrated superior charge transfer behavior. In kinetic analysis, both capacitive and diffusion-controlled behaviors were found to contribute to the electrochemical performance.
Article
Nanoscience & Nanotechnology
Longjun Guo, Wei Liu, Chunqing Wang
Summary: Nanoscale Ag-decorated CuO/SnO2 heterojunctions with coralloid hollow porous structure (ACSO HPs) were synthesized through a hydrothermal route. The ACSO HPs sensor showed a higher response to isopropanol compared to other samples. The improved sensing performance was attributed to the synergistic effect of CuO/SnO2 nanoheterojunctions and the decorated nano-Ag, as well as the hollow porous structure.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Chattrarat Ponghiransmith, Jeng-Yu Lin, Worawarit Kobsiriphat, Pimpa Limthongkul, Panitat Hasin
Summary: Promising candidate materials for high-performance electrodes, transition metal species@N-doped mesoporous carbon composites, have been successfully synthesized and demonstrated excellent electrochemical performance characteristics for supercapacitor electrodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Yedluri Anil Kumar, Himadri Tanaya Das, Phaneendra Reddy Guddeti, Ramesh Reddy Nallapureddy, Mohan Reddy Pallavolu, Salem Alzahmi, Ihab M. Obaidat
Summary: In this study, a composite material of Co3O4 nanoneedles decorated on Mo-Co3O4 nanosheets was prepared by hydrothermal method and characterized for its electrochemical properties. The results showed that the Co3O4@Mo-Co3O4 nanocomposite exhibited high specific capacity and stability, making it a promising supercapacitor material.
Review
Chemistry, Physical
Jiaye Zhu, Dandan Zhang, Zichun Zhu, Qingsheng Wu, Jiangfeng Li
Summary: This review discusses the synthesis, electrochemical properties, and development prospect of MnO2 and MnO2-based composites with various structures.
Article
Multidisciplinary Sciences
Jiqu Xu, Ben Ni, Congcong Ma, Shuang Rong, Hui Gao, Li Zhang, Xia Xiang, Qingde Huang, Qianchun Deng, Fenghong Huang
Summary: This study found that DHA improves hippocampal insulin sensitivity and cognitive function in aged rats fed a high-fat diet. The therapeutic effects of DHA are achieved by reducing systemic glucose homeostasis dysregulation, hippocampal neuroinflammation, and oxidative stress. In addition, DHA treatment breaks the cycle of hippocampal insulin resistance, Ab burden, and tau hyperphosphorylation, leading to enhanced cognitive capacity.
JOURNAL OF ADVANCED RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Bangwei Deng, Xueyang Zhao, Yizhao Li, Ming Huang, Shihan Zhang, Fan Dong
Summary: Copper-based catalysts have great potential in the electrochemical reduction of CO2, but the dynamic evolution of catalytic active sites is still not fully understood. Exploring and improving the activity sites is crucial for enhancing the performance of CO2 reduction, which can be achieved by strategies such as tuning the electronic structure, controlling the external potential, and regulating the local catalytic environment.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Zhilan Du, Dashuang Wang, Xinfang Zhang, Zhiyu Yi, Jihai Tang, Pingan Yang, Rui Cai, Shuang Yi, Jinsong Rao, Yuxin Zhang
Summary: A novel core-shell structure material, SiO2@NiFe LDH, was synthesized by a one-step hydrothermal method and spontaneous electrostatic self-assembly. The SiO2@NiFe LDH-3 nanocomposite showed excellent microwave absorption properties with a reflection loss of -53.78 dB and an effective absorption bandwidth of 8.24 GHz. It is expected to be a promising non-precious, metal-based microwave absorber for eliminating electromagnetic wave contamination.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Qing Sun, Xin Yang, Tie Shu, Xianfeng Yang, Min Qiao, Dashuang Wang, Zhaohui Liu, Xinghua Li, Jinsong Rao, Yuxin Zhang, Pingan Yang, Kexin Yao
Summary: In this work, C-N@NiFe2O4@MXene/Ni nanocomposites were successfully synthesized, and the overall dielectric properties were improved effectively due to the introduction of the C-N network structure. As a result, the composite achieved a minimum reflection loss of -50.51 dB at 17.3 GHz and an effective absorption bandwidth of 4.95 GHz (13.02-18 GHz) at an ultralow thickness of 1.5 mm. This research provides a novel strategy for materials to maintain good absorption performance at an ultralow thickness level.
Article
Polymer Science
Han Wang, Rui Zhao, Xiangci Wu, Dan Zhao, Hua Xue, Yuxin Zhang, Nan Dai, Dan Song, Mengling Zhang, Hui Ding
Summary: Desertification is a serious global environmental problem that poses a threat to human survival and development. This study developed a bio-based attapulgite copolymer (BAC) for sand fixation, which showed superior application properties and promoted soil development by regulating the soil microbial community. The results provide novel insights into the design of sand-fixing materials for preventing desertification while improving soil fertility.
Article
Chemistry, Multidisciplinary
Congcong Ma, Pingping Niu, Xinyu An
Summary: This study proposes a numerical simulation method that combines the finite element method and computational fluid dynamics to investigate the influence of nonpotential flow on trapped modes in a two-dimensional cavity-duct system.
APPLIED SCIENCES-BASEL
(2023)
Article
Endocrinology & Metabolism
Congcong Ma, Huiyu Xu, Haiyan Wang, Guoshuang Feng, Yong Han, Kannan Alpadi, Rong Li, Jie Qiao
Summary: Mathematical models using early Delta inhibin B and other biomarkers can predict ovarian response in controlled ovarian stimulation. Early Delta inhibin B and basal antimullerian hormone (AMH) levels were the best measures for predicting excessive and poor ovarian responses. These models may help in counseling patients and reducing iatrogenic poor or excessive ovarian responses.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Xin Yang, Tie Shu, Haoyu Huang, Hongquan Yi, Yanchi Zhang, Wei Xiao, Liang Li, Yuxin Zhang, Minghao Ma, Xingyuan Liu, Kexin Yao
Summary: By constructing a ZIF-8-derived ZnO/C/N composite (ZOCC) interface layer on the surface of the Zn anode, the uncontrolled dendrite growth in aqueous zinc ion batteries (AZIBs) is controlled, thus improving the stability and electrochemical properties.
Review
Pharmacology & Pharmacy
Tingting Fang, Congcong Ma, Zhanming Zhang, Luning Sun, Ningning Zheng
Summary: Diabetes mellitus is a metabolic disease characterized by insulin deficiency and chronic hyperglycemia, leading to a variety of complications. The pathogenesis of diabetes and its complications involves excessive production of reactive oxygen species and metabolic imbalance. The Hypoxia-inducible Factor (HIF) signaling pathway plays a crucial role in these processes. Roxadustat, an activator of HIF-1 alpha, regulates metabolic stability in hypoxic conditions by activating downstream signaling pathways. This review summarizes the research on the therapeutic effects of Roxadustat on cardiomyopathy, nephropathy, retinal damage, and impaired wound healing in diabetes, aiming to provide insights for further research on diabetic complications treatment.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Pingan Yang, Wenxian Ye, Haibo Ruan, Rui Li, Mengjie Shou, Yichen Yin, Xin Huang, Yuxin Zhang, Jiufei Luo
Summary: In this study, core-shell heterostructured nanocomposites (Fe NWs@SiO2) were successfully prepared, consisting of ferromagnetic nanowires (Fe NWs) as the core and silica (SiO2) as the shell. These composites exhibited enhanced electromagnetic wave absorption and oxidation resistance and were synthesized using a simple liquid-phase hydrolysis reaction. The microwave absorption properties of Fe NWs@SiO2 composites with different filling rates were tested and analyzed, with the sample filled with 50 wt% showing the best comprehensive performance. At a matching thickness of 7.25 mm, the minimum reflection loss (RLmin) could reach -54.88 dB at 13.52 GHz and the effective absorption bandwidth (EAB, RL < -10 dB) could reach 2.88 GHz in the range of 8.96-17.12 GHz. The enhanced microwave absorption performance of the core-shell structured Fe NWs@SiO2 composites could be attributed to the magnetic loss of the composite, the core-shell heterogeneous interface polarization effect, and the small-scale effect induced by the one-dimensional structure. Theoretically, this research provided Fe NWs@SiO2 composites with highly absorbent and antioxidant core-shell structures for future practical applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Ping-an Yang, Rui Cai, Haibo Ruan, Mingqi Zhao, Xin Huang, Nanqing Zhang, Rui Li, Yuxin Zhang, Jiufei Luo
Summary: One-dimensional iron-nickel heterogeneous nanowires with superior electromagnetic wave absorption were prepared using a magnetic-field-assisted liquid-phase reduction method. The electromagnetic properties of the absorber were controlled by changing the atomic molar ratio of Fe to Ni, with the composition of Fe:Ni atomic molar ratio of 1:1.5 exhibiting the best absorption characteristics. The absorber showed a minimum reflection loss of 26.106 dB at 18 GHz with a matched thickness of 2.175 mm and an effective absorption bandwidth of 6.08 GHz at 2.6 mm with a filler content of 25%. The successful exploration of this one-dimensional heterogeneous structure provides important insights for the future fabrication of absorbers with excellent electromagnetic wave absorption capability.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Huan Wang, Fangbao Fu, Ming Huang, Yunhui Feng, Dongxue Han, Yuebin Xi, Wenlong Xiong, Dongjie Yang, Li Niu
Summary: This review focuses on the concept, classification, and physicochemical property of lignin. It also summarizes the application research of lignin in the field of electrochemical storage materials and devices, such as lignin-carbon materials and lignin-carbon composites in supercapacitors and secondary batteries. Finally, it points out the bottlenecks that need to be solved urgently and the prospects for future research priorities.
NANO MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Congcong Ma, Zhengyuan Wu, Hao Zhang, Heyuan Zhu, Junyong Kang, Junhao Chu, Zhilai Fang
Summary: A deep understanding of the acceptor states and origins of p-type conductivity is crucial for the p-type doping of ultrawide-bandgap oxide semiconductors. This study finds that stable NO-VGa complexes can be formed with lower transition levels when N2 is used as the dopant. The formation of shallow acceptor levels and the feasibility of achieving p-type conductivity in b-Ga2O3 are demonstrated, even when N2 is used. These findings have significant scientific and technological implications for p-type doping of ultrawide-bandgap oxide semiconductors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Chuan Jing, Jinyu Ma, Qing Sun, Yanhong Li, Xiao Tang, Faling Ling, Yongjie Wang, Wendong Zhang, Xianju Zhou, Yuxin Zhang
Summary: This study prepared a series of MOF-based derivatives using suitable methods and evaluated their electrochemical performance. It was found that phosphating treatment can enhance the material's electrical conductivity, while the layered structure facilitates the intercalation/deintercalation of electrolyte ions, and oxidation inhibits the release of electrochemical performance. Therefore, the enhancement effect in terms of electrochemical performance is ranked as follows: phosphorization > layer structure > oxidation. This study provides reliable criteria for the design and screening of advanced electrode materials.
Article
Materials Science, Multidisciplinary
Shupei Liu, Xinfang Zhang, Jinsong Rao, Liang Yu, Wei Lu, Huan Zhou, Shibo Chen, Yuxin Zhang, Xiaoying Liu
Summary: In this study, Ni-Co/DE@SP microcapsules with corrosion inhibitor were successfully prepared, exhibiting improved anti-corrosion performance, good adsorption capacity, and enhanced wear resistance in NaCl solution.
