Article
Engineering, Environmental
Canlong Wu, Guangyu Zhao, Xianbo Yu, Chao Liu, Pengbo Lyu, Guillaume Maurin, Shiru Le, Kening Sun, Naiqing Zhang
Summary: Lattice engineering through constructing van der Waals heterostructures can enhance the diffusion rate of Mg ions, improving Mg-storage capabilities. The alternating overlapping of MoS2 monolayer and graphene in a vdWH structure results in significantly reduced Mg diffusion barrier and outstanding rate performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Nicholas David Schuppert, Santanu Mukherjee, Jacek B. Jasinski, Bijandra Kumar, Ayodeji Adeniran, Sam Park
Summary: In this study, a cost-effective aqueous rechargeable battery based on MoS2 is proposed, and the performance and cost-effectiveness of the lithium-ion battery are significantly improved by exfoliation and composite technology.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Wenjing Yang, Lianshan Mou, Baoquan Xiao, Jie Chen, Di Wang, Shanglong Peng, Juanjuan Huang
Summary: Typical layered transition-metal chalcogenide materials, especially MoS2, are attracting attention as cathode materials for aqueous Zn-ion batteries (AZIBs). Researchers synthesized a three-dimensional heterostructure (Mn-MoS2/MXene) consisting of Mn2+-doped MoS2 and MXene to improve the electrochemical performance and structural stability. The heterostructure exhibited improved electrical conductivity, zinc storage capacity, and cycling stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Tianshu Li, Jun Cao, Hongze Gao, Zifan Wang, Michael Geiwitz, Kenneth S. Burch, Xi Ling
Summary: By utilizing atomic substitution synthesis, we have achieved the conversion from two-dimensional semiconductor MoS2 to metallic MoN, leading to the successful realization of lateral and vertical MoN-MoS2 heterostructures. In the lateral heterostructures, an atomically bonded interface is confirmed, while in the vertical heterostructures, moire patterns are observed. Moreover, patterning of MoN-MoS2MoN lateral heterostructures has been achieved, showcasing their potential in MoS2 electronics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Sylwia Kozdra, Adrianna Wojcik, Tamal Das, Pawel Piotr Michalowski
Summary: In this study, the mechanism of implantation process of two-dimensional molybdenum disulfide was investigated using Density Functional Theory technique. The oxidation scheme was proposed and the changes in the geometry of MoS2 layer, as well as HOMO and LUMO orbitals location, were studied. It was found that oxygen was incorporated into the MoS2 structure, creating a MoS2/MoO3 heterostructure. The effect of implantation and the presence of heterostructure were analyzed using Secondary Ion Mass Spectrometry technique. The presence of molybdenum trioxide was confirmed through Raman spectroscopy. Successful implantation resulted in a stable conductive/insulating heterostructure of MoS2/MoO3 with promising properties.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Xue Liu, Haicong Ji, Bin Peng, Zhaoning Cui, Qiongzhen Liu, Qinghua Zhao, Liyan Yang, Dong Wang
Summary: Researchers have developed a cotton-derived carbon/MoS2@reduced graphene oxide (RGO) electrode for energy storage, which exhibits superior performance in sodium-ion batteries and lithium-ion batteries.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Siming Ren, Yanbin Shi, Chaozhi Zhang, Mingjun Cui, Jibin Pu
Summary: The thermal stability of two-dimensional molybdenum disulfide (MoS2) and its heterostructures has attracted considerable interest due to its profound applications in electronics. In this study, the oxidation behavior of continuous MoS2 films was investigated at increasing temperatures using a precision muffle furnace. The results showed that monolayer MoS2 exhibited less oxidation and better thermal stability at 340 degrees C compared to few-layer MoS2 films, which were completely oxidized at 280 degrees C. Additionally, the MoS2/h-BN heterostructure displayed anomalous oxidation behavior, with the h-BN film remaining undamaged while the underlying monolayer MoS2 film was completely oxidized at 340 degrees C. This behavior was attributed to the increased tensile strain in the MoS2 film at elevated temperature.
Article
Chemistry, Physical
Yecheng Ma, Shan Lu, Xiaolei Dong, Gaorong Han, Zongping Chen, Yong Liu
Summary: In this study, the researchers analyzed the optical parameters of graphene/MoS2 vdW heterostructure using spectroscopic ellipsometry (SE) and investigated the influence of interlayer coupling on its photoelectric properties. The results provide valuable insights into the optical parameters and potential applications of vdW heterostructures in optoelectronics.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Hongmei Dai, Mi Tang, Jiming Huang, Zhengbang Wang
Summary: By controlling the interlayer spacing and adjusting the electrical conductivity of MoS2 through molecule intercalation, it is possible to enhance the performance of the anode material for sodium ion batteries, achieving higher cycling stability and storage capacity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Fangwei Xie, Chunjie Xu, Yaochen Song, Qi Liang, Jinjie Ji, Sizhe Wang
Summary: Suppressing the dissolution and shuttling of lithium polysulfides (LiPSs) in electrolytes is a major concern in the development of lithium-sulfur batteries (LSBs). In this study, the researchers propose a functional liquid phase exfoliated MoS2 and MXene (IL-MoS2/MX) interlayer as the separator for LSBs. The IL-MoS2/MX interlayer with its unique alternating intercalation structure provides a pathway for ion transport and allows for uniform Li' deposition. It also achieves physical and chemical anchoring to LiPSs and lowers the energy barrier for battery reactions. The convenient preparation and excellent performance of IL-MoS2/MX suggest its potential for commercialization and provide a design strategy for functionalized interlayers for LSBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Qian Li, Mingqi Xu, Tong Wang, Haijun Wang, Jingwen Sun, Jingquan Sha
Summary: In this study, CoS2/MoS2/PDDA-rGO/PMo12 nanocomposites were synthesized using a simple hydrothermal process to address the poor cycling stability and low rate capability of MoS2 as electrode materials for LIBs. The resulting nanocomposites exhibited improved capacity and stability, indicating the potential of MoS2-based nanocomposites as high-performance electrode materials for LIBs.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Xu Zhang, Yuhong Jin, Ke Zhang, Qiong Yuan, Hao Wang, Mengqiu Jia
Summary: Polyvinylpyrrolidone (PVP)-derived nitrogen-doped carbon-coated MoS2 composites (MoS2/NC) were synthesized using PVP as a soft template. The optimized MoS2/NC exhibited excellent electrochemical properties, including stable capacity and high-rate performance, making it a promising anode material for sodium-ion batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Mengjue Cao, Yi Feng, Pengcheng Zhang, Lvye Yang, Xiaoli Gu, Jianfeng Yao
Summary: In this study, carbon nitride nanotubes were used as a template to in-situ grow ultrathin MoS2 nanosheets, and MoS2 nanotubes with a uniform tube-like structure were obtained after the removal of carbon nitride nanotubes. The hollow structure of the MoS2 nanotubes provides advantages for mass diffusion, short ion transfer distance, and alleviating volume expansion. The experimental results demonstrate that the obtained MoS2 nanotubes exhibit good cycling performance and reversible capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Yang He, Changlin Liu, Zhengkun Xie, Pairuzha Xiaokaiti, Gang Chen, Zhongbao Feng, Yutaka Kasai, Abuliti Abudula, Guoqing Guan
Summary: In this work, a cobalt sulfide/molybdenum disulfide-based anode material with a heterostructure for sodium-ion batteries (SIBs) was fabricated by combining a one-pot hydrothermal route with a solid-state sulfidation step. Compared with pure cobalt sulfide and pure molybdenum disulfide materials, the cobalt sulfide/molybdenum disulfide-based one showed superior cycling stability and extraordinary rate performance. The material characterizations showed abundant mesopores and the kinetics analysis confirmed the decreasing of charge transfer resistance and the increasing of sodium ions diffusion coefficient with cycling.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Uri R. Gabinet, Changyeon Lee, Ryan Poling-Skutvik, Daniel Keane, Na Kyung Kim, Ruiqi Dong, Zachariah Vicars, Yusheng Cai, Aniket U. Thosar, Alexander Grun, Sarah M. Thompson, Amish J. Patel, Cherie R. Kagan, Russell J. Composto, Chinedum O. Osuji
Summary: By simultaneously exfoliating and stably dispersing MoS2 nanosheets in a liquid crystal, researchers have successfully prepared stable dispersions of 2D-MoS2 and fabricated MoS2 nanocomposites, opening up new possibilities for studying the anisotropic properties of MoS2 and utilizing these properties in responsive materials.
ACS MATERIALS LETTERS
(2021)
Article
Engineering, Environmental
Guotai Sun, Jian-Wen Shi, Siman Mao, Dandan Ma, Chi He, Hongkang Wang, Yonghong Cheng
Summary: A new photocatalyst, tri-arm CdS/ZnS core-shell nanorod, shows significantly enhanced photocatalytic performance with improved quantum efficiency and hydrogen evolution rate. This enhancement is attributed to the win-win situation between the CdS/ZnS heterojunction and the H+ adsorption resulting from DDA molecules.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Fengping Xiao, Xuming Yang, Tianhao Yao, Hongkang Wang, Andrey L. Rogach
Summary: A nitrogen and oxygen codoped flower-like porous carbon host derived from a Ni-based metal-organic framework (MOF) was used for selenium storage, increasing the carbon host's polarity and restricting selenium diffusion. This optimized composite showed excellent electrochemical performance as a cathode for sodium-selenium batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Li Li, Yun He, Qiang Xu, Ting Liu, Shaoyi Bei, Keqing Zheng, Jun Yang, Hongkang Wang, Michael K. H. Leung
Summary: In this study, a novel paper-based self-pumping MFC stack with potassium formate and hydrogen peroxide as the fuel and oxidant, respectively, was proposed. Passive liquid flow was achieved through capillary action, and a compact vertical stack structure was adopted to reduce costs. Experimental results showed significantly improved power output in the stack prototypes, which was attributed to enhanced capillary flows and reduced ohmic losses in the vertical stacking structure. Additionally, it was found that a loose microstructure of the paper wick contributed to enhanced mass transfer.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Li Li, Qiang Xu, Hongkang Wang, Shaoyi Bei, Shuanglin Shen, Yun He, Yan Zheng, Xiaochun Wang, Keqing Zheng
Summary: A computational model of MFC with flow-through porous electrodes is established to compare the effects of kinetic and structural parameters on cell performance. Structure optimization of the porous electrode for enhanced mass transfer is shown to be more promising than electrochemical modification, resulting in a significant increase in current density. This study provides useful guidance for the future development of MFCs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Huiying Lu, Ruifeng Qian, Lei Zhu, Tianhao Yao, Chao Li, Li Li, Hongkang Wang
Summary: Metal oxides have the potential to replace commercial graphite as anode materials for lithium ion batteries, with the controllable synthesis of amorphous/crystalline MnCo2Ox nanoparticles within porous carbon nanofibers showing promising results. The optimized material delivers high stable capacity and excellent electrode performance, attributed to the synergistic effect of its unique structure.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Ruifeng Qian, Menglong Yao, Fengping Xiao, Tianhao Yao, Huiying Lu, Yan Liu, Jian-Wen Shi, Yonghong Cheng, Hongkang Wang
Summary: Mesoporous TNO was synthesized using a simple sol-gel method with PVP as a regulating agent, and the optimized TNO with PVP of 58000 showed significantly improved lithium storage performance. The fine mesoporous framework consisting of interconnected TNO nanocrystallites contributed to the superior lithium storage behavior and cycling stability of TNO.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ruifeng Qian, Huiying Lu, Tianhao Yao, Fengping Xiao, Jian-Wen Shi, Yonghong Cheng, Hongkang Wang
Summary: TiNb2O7 nanospheres with a unique hollow structure are synthesized using phenolic resin spheres as sacrificial templates and coated with polydopamine and N-doped carbon layer on secondary nanoparticles, which significantly improves their cycle performance and rate capability in lithium-ion batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Sen Qian, Chuan Chen, Yan Wang, Hongkang Wang
Summary: This research focuses on improving the sensitivity of High-frequency current transformer (HFCT) sensors for pulse detection at high frequencies by refining the ferrites of the magnetic cores. The results show that the use of a two-step sintering technique and the addition of barium titanate (BaTiO3) can significantly improve the transfer functions of the HFCT sensors, thereby enhancing their sensitivity for pulse detection at high frequencies.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tianhao Yao, Li Li, Hongkang Wang
Summary: Titanium dioxide has been extensively studied as anode materials for sodium-ion batteries due to its low cost and high abundance. However, its slow ion/electron transfer rate limits its practical applications. In this study, TiO2@C-Sb nanotablets with a small amount of Sb content were developed through calcination of Ti-metal-organic framework derived TiO2@C/SbCl3 mixture. The TiO2@C-Sb exhibits enhanced electron/ion transfer rate and predominantly pseudocapacitive sodium storage behavior, making it a promising candidate for high-energy-density TiO2-based energy storage devices.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Sheng Chen, Yunping Wu, Shuwen Niu, Zhengyu Wei, Youshen Wu, Wei Wei
Summary: By exploiting the advantages of solid polymer electrolytes (SPEs) including light weight, flexibility, and flame retardancy, this study addresses the safety concerns and energy density improvement for lithium-ion batteries (LIBs). The development of SPEs is still hindered by their low ionic conductivity, which can be overcome by a hierarchical structure of flower-like Co3O4 microspheres and a multifunctional coating of polydopamine (PDA) used as a lithiophilic backbone. The interphase characterizations and their effects on Li+ conductivity and mechanical/electrochemical stability are investigated, and the potential application of Co3O4@PDA-based composite solid polymer electrolytes (CPEs) in all-solid-state LIBs is demonstrated.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Tianhao Yao, Hongkang Wang, Yuanbin Qin, Jian-Wen Shi, Yonghong Cheng
Summary: This study presents a novel approach to enhance the storage behavior and reaction kinetics of TiO2-based anode in sodium-ion capacitors (SICs) through Mo-doping and carbon hybridization. The Mo-doped TiO2-x@carbon composite exhibits improved pseudocapacitive contribution, reversible capacity, cycling stability, and rate capability.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Tianhao Yao, Hongkang Wang, Xin Ji, Deyu Wang, Qingmiao Zhang, Lingjie Meng, Jian-Wen Shi, Xiaogang Han, Yonghong Cheng
Summary: Titanium dioxide (TiO2) is a promising anode material for sodium-ion batteries (SIBs) but suffers from slow ion transferability and poor conductivity. To overcome these drawbacks, a facile strategy has been developed to engineer the lattice defects and microstructure of TiO2-based anode, resulting in enhanced sodium storage performance.
Article
Chemistry, Physical
Kunli Song, Kaiyu Guo, Siman Mao, Dandan Ma, Yixuan Lv, Chi He, Hongkang Wang, Yonghong Cheng, Jian-Wen Shi
Summary: This study reports a selective catalytic reduction (SCR) catalyst, quasi-metal-organic-framework (MOF) nanorod containing manganese (quasi-Mn-BTC)，which overcomes the disadvantage of poor SO2 tolerance of Mn-based catalysts. The catalyst exhibits excellent low-temperature (LT) denitration (de-NOx) performance and maintains high NOx conversion even under high SO2 concentration.
Article
Chemistry, Physical
Hao Dong, Xinyang Chen, Tianhao Yao, Qianjiao Ge, Shiqi Chen, Zhenhan Ma, Hongkang Wang
Summary: This study investigates the effect of nanostructure engineering on Ti2Nb10O29 and its lithium storage behaviors, and successfully synthesizes hollow Ti2Nb10O29 nanospheres with better lithium storage performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Ang Gao, Tianhao Yao, Menglong Yao, Ruochen Chen, Qiangrui He, Hongkang Wang
Summary: By complexing Ni/Co/Mn ions with glucose under solvothermal conditions, well-defined spherical Ni/Co/Mn-gluconate with tunable size and elemental composition is prepared and can be readily converted into yolk-shelled Li(NixCoyMn1-x-y)O-2. A yolk-shelled LiNi0.6Co0.2Mn0.2O2 cathode is prepared as an example and exhibits high specific lithium storage capacity and excellent cycling stability.
MATERIALS ADVANCES
(2023)
