Article
Materials Science, Multidisciplinary
Nurul Hazwani Aminuddin Rosli, Kam Sheng Lau, Tan Winie, Siew Xian Chin, Chin Hua Chia
Summary: In this study, the modification of rGO with sulfur via microwave-assisted synthesis was successfully achieved, resulting in improved electrochemical performance. S-rGO-0.25 exhibited excellent specific capacitance and capacitance retention, showing promising potential for supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Physical
Chenxu Miao, Xianzhi Yin, Genglei Xia, Kai Zhu, Ke Ye, Qian Wang, Jun Yan, Dianxue Cao, Guiling Wang
Summary: The study shows that CoSe2/RGO composites exhibit excellent specific capacitance and durability, with the best performance achieved at 35.2 wt% RGO content. The hybrid supercapacitor using solid-state materials broadens the voltage window and enhances energy density.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Wen Li, Aizhen Xu, Yu Zhang, Yan Yu, Zhihua Liu, Yujun Qin
Summary: Metal oxide derived from metal-organic framework (MOF) can have unique architecture and properties. In this study, hierarchically nanostructured Mn3O4 is synthesized from Mn-BTC MOF and reduced graphene oxide (rGO) to create an rGO/Mn3O4 composite for high-performance supercapacitor electrode material. The optimized rGO/Mn3O4/Ni foam electrode exhibits excellent specific capacitance and cycling performance. The assembled all-solid-state symmetric supercapacitor based on the rGO/Mn3O4 composite demonstrates high energy density and power density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Electrochemistry
Xiaoping Zhou, Tao Meng, Fenyun Yi, Dong Shu, Zixin Li, Qiting Zeng, Aimei Gao, Zhenhua Zhu
Summary: The study investigates the fabrication and electrochemical activation process of Mn3O4 anchored nitrogen-doped reduced graphene oxide, showing that the activation process improves the specific capacitance of the electrode and enhances cycle stability.
ELECTROCHIMICA ACTA
(2021)
Article
Energy & Fuels
Rajesh Kumar, Sumanta Sahoo, Wai Kian Tan, Go Kawamura, Atsunori Matsuda, Kamal K. Kar
Summary: The hybrid material rGO@Co3O4/CoO synthesized by single-step microwave irradiation shows promising electrochemical performance and mesoporous structure, indicating its potential as electrode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Arijit Kapuria, Tapas Kumar Mondal, Bikash Kumar Shaw, Yan-Kuin Su, Shyamal K. Saha
Summary: Functionalized carbon based 2D materials show promise as low cost and environmentally friendly electrocatalysts for hydrogen evolution reaction (HER) and supercapacitor applications. Metal free polysulfide functionalized reduced graphene oxide (GPS) is successfully synthesized as an efficient HER electrocatalyst and energy storage device. The material exhibits high current density and specific capacitance due to the synergistic effect of the graphene network and polysulfide functionalizations.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Analytical
P. Stephen Selvamani, J. Judith Vijaya, L. John Kennedy, B. Saravanakumar, N. Clament Sagaya Selvam, P. Joice Sophia
Summary: Researchers have developed a CeO2@MoS2@rGO (CeMG) ternary composite through a two-step microwave synthetic route to be used as an outstanding electrode material for supercapacitors. The composite exhibits excellent specific capacitance at a current density of 1 A g-1, with a prolonged cyclic stability of 88.9% capacitance retained after 10,000 cycles of charging and discharging.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Ozlem Budak, Ozlem Uguz, Atif Koca
Summary: In this study, a one-step electrodeposition method was used to fabricate binder free nickel cobalt oxide and nickel cobalt oxide reduced graphene oxide composite nanosheets, which exhibited excellent electrochemical performance with high specific capacitance and superior stability. Moreover, the potential of the NCO-rGO composite nanosheets in practical applications was demonstrated by constructing an asymmetric supercapacitor.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Nanoscience & Nanotechnology
Jin Hao, Huiyin Liu, Shuang Han, Jianshe Lian
Summary: A vertically aligned MoS2 nanosheet-polypyrrole composite on reduced oxygen graphene was fabricated using a one-step hydrothermal strategy (MP-rGO). The MoS2 nanosheets mixed with PPy lamellas were well coated on the surface of rGO to form a ternary nanostructure via a redox reaction. The resulting MP-rGO electrode exhibited high specific capacitance and cycling stability, suggesting potential application in energy storage.
ACS APPLIED NANO MATERIALS
(2021)
Article
Energy & Fuels
Natarajan Sivakumar, Perumal Nagaraju, Ali Alsalme, Ali Alghamdi, Ramasamy Jayavel
Summary: The lanthanum ferrite decorated reduced graphene oxide nanocomposite prepared by in-situ microwave irradiation method exhibits enhanced electrochemical performance, with a specific capacitance of 170 Fg(-1), admirable cyclic stability, better Columbic efficiency, and improved capacitance retention, showing great potential for supercapacitor applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Jiana Hu, Caiyun Liang, Jiadong Li, Yongjiu Liang, Shangyu Li, Guijie Li, Zhijiang Wang, Dewen Dong
Summary: The rGO@Fe3O4/SR composites exhibited magnetic properties and provided a heterogeneous interface due to the in situ grown Fe3O4 nanoparticles on the rGO sheets, resulting in better impedance matching, enhanced magnetic loss, and interfacial polarization loss.
APPLIED SURFACE SCIENCE
(2021)
Article
Energy & Fuels
Nurul Hazwani Aminuddin Rosli, Kam Sheng Lau, Tan Winie, Siew Xian Chin, Sarani Zakaria, Chin Hua Chia
Summary: In this study, MoS2-rGO composites were synthesized using the microwave-assisted method, showing outstanding potential as supercapacitor electrodes in energy storage applications.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Minsik Hwang, Hyun-Woo Kim, Jeong-Un Jin, Heejoun Yoo, Jaesang Yu, Bon-Cheol Ku, Nam-Ho You
Summary: This research introduces an eco-friendly and simple reduction method for crumpled graphene oxide (C-GO) using elemental sulfur. The crumpled sulfur-assisted reduced graphene oxide (C-SrGO) shows better electrochemical performance than crumpled graphene oxide reduced by hydrazine, with potential applications in various energy storage systems.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
An'an Zhou, Jie Bai, Wenjing Hong, Hua Bai
Summary: This review provides a comprehensive summary of the electrochemical reduction of graphene oxide (GO) and the resulting electrochemically reduced graphene oxide (ERGO). The electrochemical reduction method offers advantages such as eco-friendliness, high efficiency, and controllability, enabling the direct growth of high-quality graphene on electrodes. The review covers the reduction mechanisms, the influence of experimental parameters on the reduction process and the properties of ERGO, as well as the fabrication of composites based on ERGO. Additionally, the applications of ERGO and its composites in various fields are discussed, along with the remaining challenges.
Article
Nanoscience & Nanotechnology
Xiaobin Gong, Yang Wang, Kai Yao, Jingjing Yang, Yanan Li, Xin Ge, Haijiao Xie, Gaofei Pan, Ruiguang Xing
Summary: This study explores the use of Resveratrol (Res) as an organic compound with oxidation-reduction activity for energy storage applications. By compositing Res with three-dimensional graphene structures, the resulting Res/reduced graphene oxide (rGO) composites exhibit abundant active sites and high specific capacitance. The addition of Res significantly improves the specific capacitance of the composite, reaching 588 F/g in 6 mol/L potassium hydroxide for a GO-to-Res mass ratio of 3:1. The cycling stability of the composite is also good, with an initial capacitance retention of 88.8% after 10,000 cycles. Density functional theory calculations suggest that Res plays a crucial role in the excellent electrochemical performance of the composites.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Liguo Yue, Li Chen, Xi Liu, Dongzheng Lu, Weiliang Zhou, Yunyong Li
Summary: Hierarchical composite materials made from biomass carbon, ZIF-67, and a mild pore former are able to generate alloy-type CoNi3 nanoparticles planted into conductive honeycomb-like carbon frameworks, leading to a remarkable specific capacitance and ultra-long cycling stability. Besides, the asymmetrical supercapacitor also exhibits a high specific capacitance, long-term stable lifespan, and maximum energy density, making it a promising energy storage application.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Bing Zhang, Jiongwei Shan, Weilong Wang, Panagiotis Tsiakaras, Yunyong Li
Summary: This study successfully prepared an anemone-like CoP@CoOOH core-shell heterojunction catalyst using oxygen-vacancy and core-shell heterojunction engineering strategy, which exhibited excellent HER and OER activities in both neutral and alkaline media. The core-shell heterojunction accelerated the catalytic kinetics, while oxygen-vacancies reduced the kinetic barrier, ultimately enhancing the OER performance.
Article
Chemistry, Multidisciplinary
Zhonggang Liu, Dongzhen Lu, Wei Wang, Liguo Yue, Junlu Zhu, Ligong Zhao, He Zheng, Jianbo Wang, Yunyong Li
Summary: This study develops a high-density Ti3C2Tx MXene and graphene dual-encapsulated Si monolith anode for lithium-ion batteries. The anode exhibits ultrahigh volumetric capacity, superior long lifespan, and large areal capacity due to its dual-encapsulated Si architecture and 3D conductive and elastic networks of MXene and graphene. The integration of a dual-encapsulated strategy and dense-structure engineering offers a simple and feasible approach to enhance the volumetric and areal capacity of alloy-based anodes.
Article
Materials Science, Ceramics
Xiao Liu, Yafei Zhao, Yunyong Li, Wenwu Li
Summary: Silicon, as the highest capacity LIB anode material, has been commercialized. However, its slow conductivity impedes large-scale application. To improve the reaction kinetics, aluminum and phosphorus are co-introduced into silicon, forming a new family of AlSixP solid solutions. The AlSixP series materials show promising potential for utilization in LIBs due to their improved conductivity and stability.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Xi Liu, Junlu Zhu, Liguo Yue, Xinying Wang, Wei Wang, Tongjun Zheng, Yunyong Li
Summary: This study proposes a green and scalable template-free method for designing 3D honeycomb-like interconnected porous micro-sized Sb. The porous-Sb anode exhibits large capacity and superior rate performance, verifying the potential application of this strategy in energy storage and conversion.
Article
Chemistry, Multidisciplinary
Jiongwei Shan, Wei Wang, Bing Zhang, Xinying Wang, Weiliang Zhou, Liguo Yue, Yunyong Li
Summary: An integrated strategy is developed to manipulate Li2S redox kinetics of CoP/MXene catalyst via electron-donor Cu doping. A dense S/Cu0.1Co0.9P/MXene cathode is constructed, which presents a large volumetric capacity and a high areal capacity. The study deepens the understanding of the atomic-level manipulation mechanism of Li2S redox kinetics.
Article
Chemistry, Multidisciplinary
Dongzhen Lu, Xinying Wang, Yanjie Hu, Liguo Yue, Zhuhang Shao, Weiliang Zhou, Li Chen, Wei Wang, Yunyong Li
Summary: Fabrication of highly-conductive NbB2-MXene heterostructures through a borothermal reduction strategy enables effective polysulfide conversion in lithium-sulfur batteries. Experimental and theoretical results demonstrate that the design of spontaneous built-in electric field in the heterostructures promotes polysulfide transfer and electron diffusion, resulting in improved catalytic activity and stability. The S/NbB2-MXene cathode exhibits high capacity, long cycle life, and large areal capacity, making it a promising candidate for next-generation lithium-sulfur batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xi Liu, Junlu Zhu, Xinying Wang, Liguo Yue, Wei Wang, Bingchun Wang, Dijun Shen, Yunyong Li
Summary: This study demonstrates a self-limited growth strategy to fabricate Bi (Sb) nanoparticles as electrochemically active and conductive coating embedded into honeycomb-like porous red phosphorus (HPRP), greatly improving the potassium-storage kinetics and stability. The introduction of amorphous Bi significantly decreases K+ diffusion barrier, enhances electrical conductivity, and accelerates potassium storage kinetics and stability. The HPRP@Bi anode shows high gravimetric and volumetric capacity and stable long lifespan in potassium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Liguo Yue, Li Chen, Xinying Wang, Dongzhen Lu, Weiliang Zhou, Dijun Shen, Qian Yang, Shengfu Xiao, Yunyong Li
Summary: This study presents a strategy to enhance the energy storage of metal-organic frameworks (MOFs) by constructing promising hierarchical heterostructural electrodes using a thin-layer aminated MXene. By stabilizing highly redox-active bimetallic Ni/Co MOFs on the surface of aminated MXene, the electrodes exhibit superior wettability and conductivity, allowing for superior electron and ion transmission. The modified MXene also helps to exfoliate the sheet-like structures of MOFs, resulting in rapid redox reactions and high capacitance. The obtained electrode shows ultra-high specific capacitance and long cycling stability in a three-electrode system, demonstrating the effectiveness of this strategy for enhancing energy storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Li Chen, Liguo Yue, Xinying Wang, Shangyou Wu, Wei Wang, Dongzhen Lu, Xi Liu, Weiliang Zhou, Yunyong Li
Summary: This study developed multifunctional SnS2-MXene Mott-Schottky heterojunctions with interfacial built-in electric field (BIEF) for accelerating synergistic adsorption-electrocatalysis of bidirectional sulfur conversion in lithium-sulfur batteries. The SnS2-MXene heterojunctions form a spontaneous BIEF under Mott-Schottky influence, facilitating the bonding of SnS2 surface with more lithium polysulfides. The hetero-interface also promotes Li+/electron transfer, lowering Li2S nucleation/decomposition barrier and enhancing bidirectional sulfur conversion. The cathode based on S/SnS2-MXene displays high reversible capacity and stable long-life span. This work provides insights into the mechanism of BIEF and offers an effective strategy for designing efficient bidirectional Li-S catalysts in LSBs.
Article
Chemistry, Applied
Weiliang Zhou, Xinying Wang, Jiongwei Shan, Liguo Yue, Dongzhen Lu, Li Chen, Jiacheng Zhang, Yunyong Li
Summary: In this study, a hollow CoO/CoP-Box core-shell heterostructure was developed as a multifunctional catalyst modified on separators in lithium-sulfur batteries (LSBs) to enhance sulfur utilization. The in-situ formed core-shell hetero-interface induces charge redistribution and activates surface O active sites for strong adsorption of lithium polysulfides (LiPSs). The modified LSBs show a high initial capacity and long cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Yanjie Hu, Dongzhen Lu, Weiliang Zhou, Xinying Wang, Yunyong Li
Summary: In this study, 3D bismuth nanosheets@Cu nanowire core-shell nano-architectures were in situ constructed on Cu foam as efficient electro-catalysts for CO2RR into formic acid, achieving high selectivity and large current density. The superior activity is attributed to the large catalytic surface area related to the porous structure and high intrinsic activity induced by lattice defects on the preferential exposure of the Bi (110) facet. The presence of the Cu NW support significantly enhances the Bi reducibility and boosts the C-terminal hydrogenation of CO2.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Wei Wang, Xinyin Wang, Jiongwei Shan, Liguo Yue, Weilong Wang, Yunyong Li
Summary: In this study, a dual-functional conductive 1T-MoSe2/MXene bidirectional catalyst was constructed to effectively inhibit the shuttle behavior of sulfur in lithium-sulfur batteries, improving their stability and capacity retention.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yanjie Hu, Xinying Wang, Jiacheng Zhang, Jiaming Zhang, Yangtao Zhang, Jiawen Liang, Yunyong Li
Summary: This study presents an excellent electrocatalyst for the electrocatalytic carbon dioxide reduction reaction (CO2RR) to obtain valuable formic acid (HCOOH). The electrocatalyst is based on the in-situ construction of three-dimensional (3D) porous networked core-shell nanowire structures on copper (Cu) foam. The electrocatalyst exhibits a high current density and Faradaic efficiency, surpassing most reported studies.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wei Wang, Xinying Wang, Jiongwei Shan, Liguo Yue, Zhuhang Shao, Li Chen, Dongzhen Lu, Yunyong Li
Summary: In this study, a new selection criterion called electron affinity/ionic radius (E-A/r) rule is established to guide the design of efficient metal-cation-doped Li-S catalysts. By systematically investigating the electronic structure and catalytic activity of metal-cation dopants with different E-A/r values into WSe2, it is found that a low E-A/r value induces more defects and active sites, leading to stronger binding with LiPSs but weaker Li-S bonds. As a result, V-doped WSe2/MXene catalyst with the minimum E-A/r value exhibits high reversible capacity, long-term cycling stability, and large areal capacity. This work provides a general design rule for advanced Li-S catalysts.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)