Article
Materials Science, Multidisciplinary
Dandan Ma, Xin Mu, Guiqing Zhao, Xiangge Qin, Meili Qi
Summary: MnO2/CNFs were obtained by electrospinning technology to improve the conductivity and cycling performance of MnO2. The MnO2/CNFs exhibited superior electrochemical performance and could be used as a flexible electrode material.
Article
Chemistry, Physical
Z. Y. Huang, Y. F. Yuan, Z. C. Lin, J. J. Lin, S. B. Li, S. Y. Guo, Y. Z. Huang, W. W. Yan
Summary: Fluffy ultrathin WO3 nanoneedle clusters with unique ship-in-a-bottle structure are successfully synthesized in mesoporous hollow carbon nanospheres. The composite exhibits remarkable lithium storage performance and outstanding kinetics properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
T. Zhang, Y. F. Yuan, B. X. Wang, G. S. Cai, P. F. Du, Y. Z. Huang, S. Y. Guo
Summary: CoSe nanoparticles grown on the inner surface of 3D honeycomb C successfully solves the challenges of volume changes and low conductivity, and demonstrates high cycling performance and exceptional rate capability, making it a potential anode material for high-performance LIBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Y. F. Yuan, T. Zhang, Z. . Y. Yang, Z. J. Yao, B. X. Wang, Q. H. Yang, S. Y. Guo
Summary: In this study, three-dimensional honeycomb macroporous carbon was synthesized and VS4 nanoparticles and nano-flakes were grown in-situ. The composite exhibited excellent rate capability, high reversible capacity, and stable long-term cycling performance. The intercalation reaction of VS4 contributed significantly to the capacity, and the kinetics properties, including capacitive behavior, diffusion coefficients, and reaction impedance, were improved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
S. Y. Zhu, Y. F. Yuan, P. F. Du, M. Zhu, Y. B. Chen, S. Y. Guo
Summary: This study focuses on improving the lithium storage performance of MnS by addressing its low conductivity and volume variation issues through a novel synthesis strategy and composite structure. The composite material consists of alpha-MnS nanoparticles grown within a 3D macroporous honeycomb carbon framework. The composite demonstrates enhanced specific capacity, cycling durability, and rate capability, as well as excellent kinetics properties, thanks to the smart design of the confined alpha-MnS nanoparticles.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Guorui Yang, Ziyi Zhou, Xiaofeng Liu, Yue Zhang, Silan Wang, Wei Yan, Shujiang Ding
Summary: The research indicates that hollow bowl-shaped porous carbon materials modified with graphene can act as high-performance anode materials for sodium-ion batteries, exhibiting high reversible capacity, excellent rate capability, and cycling stability. These materials possess good electrical conductivity and large surface area, which improve sodium ion adsorption and diffusion, leading to superior capacity and rate performance in sodium-ion batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Dan Zhang, Chunyan Zhang, Xuan Zheng, Yizhuo Zhao, Xinyu Shi, Baomin Luo, Yuzhu Li, Guangyin Liu, Xiaodi Liu, Chuang Yu
Summary: In this study, a Mn3O4/N-doped honeycomb carbon composite was successfully prepared using a smart and facile synthetic method. The Mn3O4 nanopolyhedra grown on N-doped honeycomb carbon mitigated volume change and improved electrochemical reaction kinetics. The Mn-O-C bond in the composite improved electrochemical reversibility, resulting in superior electrochemical performance. The Mn3O4/N-doped honeycomb carbon anode exhibited a high reversible capacity of 598 mAh center dot g(-1) after 350 cycles at 1 A center dot g(-1), showing great potential for energy storage.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Chemistry, Analytical
Jingjing Xie, Fei Tang, Haifeng Li, Wei Jiang, Zhenglong Yang, Deyang Zhao, Yanbin Xu, Yanfeng Meng, Wenjuan Sun, Ziqiao Jiang
Summary: In this study, N-doped porous carbon was synthesized and composited with FeMoO4 by a hydrothermal method, forming a composite material with a large specific surface area. This composite material enhanced the lithium storage performance and buffered the volume change during lithiation/delithiation, leading to high cycling stability.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nurbolat Issatayev, Gulnur Kalimuldina, Arailym Nurpeissova, Zhumabay Bakenov
Summary: New porous activated carbons were synthesized as an anode material for lithium-ion batteries using a one-step, sustainable, and environmentally friendly method. Among the four chemical activators investigated, the AC prepared with KOH demonstrated the best electrochemical performance with high reversible capacity. The AC from agar showed stable cycling performance even at high rates.
Article
Chemistry, Multidisciplinary
Hong Wang, Yuejin Ma, Wenming Zhang
Summary: The preparation of Fe3O4-Sn@CNFs with Fe3O4 and Sn nanoparticles loaded onto nanofibers surface resulted in an anode material with high reversible specific capacity and cycle stability, effectively increasing the electrochemical reaction sites and improving the rate and cycling performance of the electrodes.
Article
Electrochemistry
Daniele Spada, Benedetta Albini, Pietro Galinetto, Daniele Versaci, Carlotta Francia, Silvia Bodoardo, Giorgio Bais, Marcella Bini
Summary: Niobium-based oxides as new anode materials for advanced LIBs have gained increasing attention for their high theoretical capacities and working potential, which can prevent safety risks in batteries. The study of FeNb11O29's structural and electrochemical features reveals its excellent characteristics for high-power density LIBs with potential wide applications. The symmetrisation of the octahedral framework after the reduction of Nb5+ cations seems to be the key of the electrochemistry of FeNb11O29.
ELECTROCHIMICA ACTA
(2021)
Article
Energy & Fuels
Laraib Kiran, Mehmet Kadri Aydinol, Syed Sakhawat Shah, Aneela Anwar, Syed Mustansar Abbas, Doruk Bahtiyar, Muhammad Siddiq, Abdul Rehman, Mohamed Ouladsmane, Muhammad Imran Shahzad
Summary: In this study, Cr2O3 nanocomposite with multi-walled carbon nanotubes (MWCNTs) was developed using an inexpensive and reproducible coprecipitation method to reduce volume changes and enhance electronic conductivity and mechanical strength. In-situ polymerization of aniline monomer was employed to coat the nanocomposite with polyaniline (PANI), improving lithium-ion conductivity and electron transportation, leading to excellent stability. The homogenous nanocomposite of Cr2O3-MWCNTs and PANI showed good electrochemical performance, with a discharge capacity of 815 mAh g-1 at 100 mA g-1 and a coulombic efficiency of 97.5%.
Article
Chemistry, Physical
Yanchao Fan, Haijia Li, Xin He, Yutong Huang, Chenhao Sun, Tianming Zhu, Haoyuan Liu, Encheng Huangzhang, Feng Sun, Junmin Nan
Summary: A three-dimensional lithium-phobic host composed of Ni foam and MnO2 nanoflowers is developed for a stable lithium metal anode, which exhibits excellent stability, uniform lithium nucleation, and dendrite-free lithium deposition.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zhenzhen Dang, Weijia Meng, Jun Han, Diansen Li, Lei Jiang
Summary: The study synthesized SnS/C nanocomposites using silica spheres and allyl thiourea, demonstrating high specific capacity, excellent rate performance, and outstanding cycling stability. This was attributed to the N, S-doped three-dimensional porous carbon interconnection structure and the wide distribution of SnS nanoparticles in the carbon matrix.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Tong-Hyun Kang, Byong-June Lee, Chaesung Lim, Ha-Young Lee, Jeong Woo Han, Jong-Sung Yu
Summary: The study presents a unique titanium oxide composite material with a high reversible capacity and stable charge-discharge performance. The material exhibits ultrafast charging at a high current density and stable operation over a wider potential window.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Changfei Zou, Li Yang, Kaili Luo, Lei Liu, Xiyuan Tao, Lingguang Yi, Xianhu Liu, Xiaoyan Zhang, Xianyou Wang
Summary: This study introduces a method to form an artificial protective layer between the lithium metal anode and solid electrolyte, improving the stability of interfacial chemistry and lithium deposition behavior. The symmetric cells and SSLBs assembled in this study exhibit good cycling stability at high current densities and room temperature.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Shuang Cao, Jiarui Chen, Heng Li, Zhi Li, Changmeng Guo, Gairong Chen, Xiaowei Guo, Xianyou Wang
Summary: Li1.17Na0.02Mn0.54Ni0.13Co0.13O2 (PN-LMNCO) is prepared through surface phase structure controlling and ion doping to address the rapid capacity fading and voltage decay issues of Li-rich Mn-based cathode materials. The introduction of lithium deficiencies induces surface phase transformation and forms an in-situ spinel surface conversion film, effectively inhibiting structure degradation during charge/discharge. Additionally, sodium doping increases spacing between Li layers, improving the rate capacity. The PN-LMNCO exhibits high initial coulombic efficiency (91.2%), retains 94.7% discharge specific capacity after 200 cycles, and maintains good discharge capacity (214 mA h g(-1)) at a high current rate of 5 C. This work is important for the development of high-energy density lithium-ion batteries for electric vehicles.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Wenlong Xia, Mingyu Han, Yufang Chen, Ying Zhou, Hongbo Shu, Yan Chen, Jincang Su, Xianyou Wang
Summary: To improve the electrochemical properties of lithium-sulfur batteries, this study proposes a rational strategy of tuning the d-band of catalysts through the introduction of Fe into in situ grown Ni2P on rGO, resulting in NiFeP/rGO composites. The incorporation of Fe improves the metallic conduction of Ni2P and elevates the d-band center of NiFeP, effectively facilitating charge transfer and weakening the S-S bonds of polysulfides. As a functional interlayer, NiFeP/rGO composites not only promote the interaction between polysulfides and NiFeP but also accelerate the conversion of polysulfides. The high-efficiency NiFeP/rGO electrocatalyst demonstrates the availability of the d-band regulating strategy for lithium-sulfur batteries, providing insights into the redox reaction of LiPSs at the molecular or atom level.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Qinglan Zhao, Xinxin Lu, Yinuo Wang, Shangqian Zhu, Yushen Liu, Fei Xiao, Shi Xue Dou, Wei-Hong Lai, Minhua Shao
Summary: A sustainable electrocatalytic approach is developed for the direct and selective synthesis of urea and ammonia from CO2 and nitrates. With the assistance of a copper-based organic catalyst, high urea and ammonia yield rates are achieved, along with remarkable Faradaic efficiency for urea synthesis. This work presents a promising sustainable route to convert greenhouse gas and waste nitrates into value-added fertilizers using renewable energies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Hui Li, Jiao Peng, Zhenyu Wu, Xiaolin Liu, Peng Liu, Baobao Chang, Xianyou Wang
Summary: A hierarchical SiOx-based anode with double-layer coatings of Sn inner layer and N-doped carbon outer shell was designed to address the limitations of SiOx-based anode materials. The SiOx/C@Sn@NC anode exhibits enhanced initial Coulomb efficiency, higher reversible capacity, and superior long lifespan. The unique double-layer coating structure and multiple active components contribute to the improved electrochemical properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Heng Li, Shuang Cao, Zhi Li, Chao Wu, Jiarui Chen, Xiaowei Guo, Baobao Chang, Xianyou Wang
Summary: Oxygen-anion charge compensation enables lithium-rich manganese-based cathode materials to have higher specific capacity, but it also leads to irreversible oxygen redox and various problems. In this study, an interfacial engineering with sodium hypophosphite is used to modify the cathode material and improve its electrochemical performance. The modification strategy based on the formation of a Li3PO4 protective layer and the generation of oxygen vacancies effectively promotes the kinetic properties of the cathode material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xiyuan Tao, Li Yang, Jiali Liu, Zihao Zang, Peng Zeng, Changfei Zou, Lingguang Yi, Xiaoyi Chen, Xiaolin Liu, Xianyou Wang
Summary: Garnet-type Li7La3Zr2O12 (LLZO) is a solid-state electrolyte with high Li+ conductivity and stability. Ga-LLZO, in particular, achieves high ionic conductivity and can be prepared using a rapid ultra-high-temperature sintering method. The Ga-LLZO ceramic electrolyte exhibits high relative density, good ionic conductivity, and excellent electrochemical stability and interfacial compatibility against Li metal.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ernest Pahuyo Delmo, Yian Wang, Shangqian Zhu, Tiehuai Li, Yinuo Wang, Juhee Jang, Qinglan Zhao, Alexander Perez Roxas, Gabriel Sikukuu Nambafu, Zhengtang Luo, Lu-Tao Weng, Minhua Shao
Summary: This study aims to understand the role of glyoxal as a potential reaction intermediate during CO2RR by analyzing the copper-catalyzed electroreduction of aqueous glyoxal. Multiple reaction pathways are observed, including electroreduction to ethanol and ethylene glycol, disproportionation to glycolate and formate, and coupling toward the formation of C4 compounds and graphitic carbon. The hydration of aldehyde functional groups affects the selectivity between ethylene glycol and ethanol. The base-catalyzed internal Cannizzaro disproportionation of glyoxal also leads to a CO2- to-glycolate pathway. The formation of graphitic carbon suggests its origin from glyoxal-derived C-C coupling during CO2RR.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Juan Yang, Jiao Peng, Yu Lei, Junqing Zeng, Guang Li, Yongqiang Shen, Baobao Chang, Liping Zheng, Xianyou Wang
Summary: A solvent-free mechanochemical method was used to prepare a calcium carbide-derived porous carbon (CCDPC) composite with polyaniline (PANI). The CCDPC/PANI composite showed a significantly improved specific capacitance and energy density compared to pure CCDPC, as well as good capacitance retention after cycling tests. This study provides important insights for enhancing the electrochemical performance of high-performance supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Changfei Zou, Zihao Zang, Xiyuan Tao, Lingguang Yi, Xiaoyi Chen, Xiaoyan Zhang, Li Yang, Xianhu Liu, Xianyou Wang
Summary: In this study, a thin layer of Li1.3Al0.3Ti1.7(PO4)(3) was used as an interface coating in lithium-ion batteries to improve the stability between the cathode and solid-state electrolyte. The nanoscale coating not only enhances lithium ion transport but also alleviates interfacial problems, leading to better capacity retention.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jiarui Chen, Shuang Cao, Zhi Li, Heng Li, Changmeng Guo, Ruijuan Wang, Lei Wu, Yixu Zhang, Yansong Bai, Xianyou Wang
Summary: In this study, homogeneous Li2ZrO3 (LZO) was successfully coated on the surface of Li1.2Mn0.54Ni0.13Co0.13O2 (LRO) by molten salt-assisted sintering technology. The as-prepared LRO@LZO composites have improved cycling performance due to the good chemical and electrochemical stability of LZO. Additionally, Li2ZrO3 acts as an excellent lithium-ion conductor, leading to increased lithium-ion transfer rate and improved rate capacity of LRO. Therefore, this study provides a new solution to enhance the structure stability and electrochemical performance of lithium-rich manganese-based cathode materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Xi Zhou, Xuelin Huang, Guang Li, Peng Zeng, Xiaolin Liu, Hong Liu, Manfang Chen, Xianyou Wang
Summary: A novel metal-organic framework (MOF) derivative called ZnCoFe-NC was designed and synthesized as a sulfur host for Li-S batteries. Its special hollow polyhedral structure provides physical trapping ability and chemisorption space for lithium polysulfides (LiPSs). The Zn, Co, Fe, and N doping not only have excellent chemisorption ability, but also high electrocatalytic activity, which accelerates the transformation of LiPSs and reduces their dissolution, improving the performance of Li-S batteries significantly.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Yu Lei, Guang Li, Juan Yang, Feng Zhang, Yongqiang Shen, Xiaoyan Zhang, Xianyou Wang
Summary: As a promising alternative to lithium-ion batteries, zinc-air batteries are recognized as a novel type of clean and environmentally friendlyenergy storage and conversion technology. In this study, a high-efficiency and cheap ORR catalyst, Fe3O4/Fe-N (x) dual catalytic active center (Fe-N-CS), was designed and prepared to overcome the limitation of low current density and large electrode polarization in the air cathode. The Fe-N-CS exhibited excellent ORR performance, surpassing Pt/C catalysts in terms of half-wave potential, onset potential, and stability.
Article
Chemistry, Physical
Heng Li, Zhi Li, Jiali Liu, Shuang Cao, Jiarui Chen, Hui Hu, Changmeng Guo, Xiaoyan Zhang, Xianyou Wang
Summary: The treatment of ammonium niobium oxalate can effectively improve the electrochemical performance of Co-free Li-rich layered oxides by creating oxygen vacancies and doping Nb5+ on the surface, leading to enhanced cycling stability and rate performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Electrochemistry
Guang Li, Kuang Sheng, Yu Lei, Feng Zhang, Juan Yang, Tianjing Wu, Liping Zheng, Xianyou Wang
Summary: Transition metal sulfides are considered as candidate oxygen redox catalysts due to their high catalytic activity and reversible redox performance. This study successfully synthesized Co9S8-FeCoS2 two-phase nanoparticles anchored in carbon spheres, which exhibited excellent catalytic performance and stability. This work provides an important approach to prepare highly efficient and stable dual-transition metal sulfide-modified carbon-based catalysts for oxygen reduction and oxygen evolution reactions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)