Article
Chemistry, Physical
Xufei Zou, Chang Dong, Yanchun Jin, Dong Wang, Lei Li, Shuaiting Wu, Zhengzheng Xu, Yingying Chen, Zhenghao Li, Hongxun Yang
Summary: A novel N, P co-doped porous carbon material derived from sugarcane bagasse was prepared and applied to supercapacitors and sodium-ion batteries. The material exhibited a special hierarchical porous structure, improved surface area, larger interlayer spacing, and moderate N, P doping level. It showed high specific capacitance, good rate capability, excellent cycle stability, high energy density, and superior cycle performance in both three-electrode and two-electrode systems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Qun Li, Ya-Nan Zhang, Shuai Feng, Di Liu, Guixiang Wang, Qinglong Tan, Shuting Jiang, Jianjun Yuan
Summary: The nitrogen and sulfur self-doped porous carbon anode material synthesized by thermal pyrolysis at 1000 degrees Celsius exhibits excellent electrochemical performance, high reversible specific capacity, and cycling stability, making it a promising candidate for cheap and high-performance anode materials for sodium ion batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Xiuyong Jiang, Tong Cao, Fan Zhang, Jianhua Zhang, Kai Qin, Haimei Liu, Yongyao Xia
Summary: FeS2/NPCF composite material has excellent conductivity and stable structure, showing outstanding performance in sodium-ion batteries, making it a potential excellent anode material.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Chenyu Zhao, Junjie Dai, Fangshun Zhu, Jun Wu, Yurong Cai
Summary: FeCoS2@NS-C composites with pomegranate-like structure demonstrate attractive rate performance and long-term cycling stability for sodium-ion batteries. The ultrafine FeCoS2 nanoparticles and the strong polar adsorption of N,S-C combined with the catalytic effect of Co0 effectively inhibit the shuttle effect of sodium polysulfides. The assembled full cell also shows promising performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Rongji Jiao, Zhengjun Deng, Long Lei, Yunying Liu, Jinlong Cui
Summary: S/N co-doped hierarchical porous carbon composites derived from lignite are used as anodes in potassium ion batteries. These composites possess a hierarchical porous structure, which enhances structural resilience and facilitates ion/electronic transport. They exhibit high reversible capacity and excellent long cycle stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Physics, Applied
Rou Lu, Shuang Zhou, Simin Chai, Yue Zhong, Haomiao Zhang, Jing Chen, Zhi Chang, Anqiang Pan
Summary: The study fabricated a composite material composed of N, S co-doped carbon nanofibers and well-dispersed Cu9S5 nanocrystals as an anode material for lithium-ion batteries and sodium-ion batteries. The hierarchical structure of the composite material shortened the ion diffusion pathways, provided rapid electron transfer, and accommodated the volume variation, resulting in excellent electrochemical performance.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Lifeng Cui, Haoyu Qi, Nannan Wang, Xin Gao, Chunyu Song, Jinghua Yang, Gang Wang, Shifeng Kang, Xiaodong Chen
Summary: Transition metal selenide is a potential material for the negative electrode of lithium-ion batteries due to its high density and conductivity. However, the large volume change during charging and discharging process leads to poor performance. CoSe/C-NS with N/S co-doping can address this issue and exhibit high capacity, high rate performance, and long-term cycle stability.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Chemistry, Physical
Lisan Cui, Chunlei Tan, Qichang Pan, Youguo Huang, Yahao Li, Hongqiang Wang, Fenghua Zheng, Qingyu Li
Summary: Bimetallic sulfide SnS/Fe7S8 nanoparticles were embedded in three-dimensional N, S co-doped carbon nano-sheets (SnS/Fe7S8/NS-CNs composite) via a simple method. The SnS/Fe7S8/NS-CNs composite displayed excellent cycle and rate performance as the anode material for sodium-ion batteries (SIBs), with a high first discharge/charge capacity of 873/559.2 mAh g-1 at 0.2 A g-1 and a high maintained capacity of 305.2 mAh g-1 after long cycle (over 2000 cycles) at 1.0 A g-1. The outstanding electrochemical properties of the SnS/Fe7S8/NS-CNs electrode were attributed to the bimetallic sulfide heterostructure that enhanced electron/Na+ transfer kinetics and the 3D carbon matrix with dense carbon nanosheets that prevented SnS/Fe7S8 particle breaking. The electrochemical conductivity was also improved by the N, S co-doped 3D carbon nanosheet matrix.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Qifeng Lin, Zeyu Yuan, Dongyi Wang, Wei Wei, Xibin Wang, Wei Han, Lili Wang
Summary: This study successfully synthesized nitrogen-doped carbon nanosphere-encased cobalt selenide composite material as a anode for sodium-ion battery through an improved preparation method. The resulting material exhibited high initial discharge capacity, cycling stability, and rate performance.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Wei Sun, Kang Guo, JinChen Fan, Yulin Min, Qunjie Xu
Summary: In this paper, a simple and etching-free method was used to prepare selenium and nitrogen codoped mesoporous carbon spheres, which delivered outstanding sodium storage performance. The phase evolution of the anode during the charge/discharge process was explored through in situ Raman investigation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Ping Zhong, Kun Wang, Xingchao Wang, Zhenjiang Lu, Jing Xie, Yali Cao
Summary: In this work, a facile self-template strategy was used to fabricate hollow porous nitrogen-doped carbon embedded with ultrafine Co nanoparticles, which exhibited excellent cycling stability and remarkable rate performance as an anode material for lithium-ion batteries. The unique design of the structure provides large surface areas, adequate internal void space, and short ion transport channels, making it a prospective material for stable, safe, and high capacity lithium storage.
Article
Chemistry, Physical
Xuefeng Yu, Zican He, Chengcheng Liu, Debesh Devadutta Mishra, Yuxin Hu, Tao Mei, Zexian Zhang, Zihe Chen, Xianbao Wang
Summary: In this study, a Mo2C/N, S co-doped porous carbon composite was reported as an anode material for sodium-ion batteries, exhibiting high reversible capacity and good rate performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Shuoqing Zhao, Ziqi Guo, Jian Yang, Chengyin Wang, Bing Sun, Guoxiu Wang
Summary: Using nanoengineering strategies to enhance the electrochemical performance and structural stability of carbon-based anode materials in sodium-ion batteries shows promising potential. Further exploration of improvement methods is necessary to increase the competitiveness of sodium-ion batteries.
Article
Chemistry, Physical
Rundie Liu, Zhenguo Wu, Qin Hu, Gongke Wang, Yuxia Liu, Benhe Zhong, Xiaodong Guo
Summary: A nitrogen-doped straw sheaf-like porous MnO@C composite was synthesized via a hydrothermal method and subsequent annealing, showing attractive electrochemical properties for use as an anode in high-performance lithium/sodium-ion batteries. The composite demonstrated a high reversible capacity in both LIBs and SIBs, with excellent cycling stability and improved performance compared to commercial MnO particles. This study opens up possibilities for the fabrication of MnO@C-N nanocomposites for advanced battery applications.
Article
Chemistry, Physical
Zhanheng Yan, Zhongyuan Huang, Yong Yao, Xinxin Yang, Huanxin Li, Chenxi Xu, Yafei Kuang, Haihui Zhou
Summary: Transition metal phosphides, including Ni2P and N, P co-doped porous carbon composite (Ni2P@NPC), are promising anode materials for potassium-ion batteries due to their high capacity and uniform distribution of small Ni2P nanodots. The Ni2P@NPC composite demonstrates excellent electrochemical performance with high specific surface area and stable capacity after long cycling, showing great potential for practical applications in potassium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Timothy Bo Yuan Chen, Ivan Miguel De Cachinho Cordeiro, Anthony Chun Yin Yuen, Wei Yang, Qing Nian Chan, Jin Zhang, Sherman C. P. Cheung, Guan Heng Yeoh
Summary: A multi-scale modelling framework was proposed in this study to simulate the pyrolysis process of polymer composites using Molecular Dynamics models and Computational Fluid Dynamics fire model. The results showed the potential application of the developed model in predicting toxic gas emissions during polymer decomposition.
Article
Chemistry, Physical
Chonghai Deng, Fan Ye, Tao Wang, Xiaohui Ling, Lulu Peng, Hong Yu, Kangzhe Ding, Hanmei Hu, Qiang Dong, Huirong Le, Yongsheng Han
Summary: The hierarchical binary CdS/NiO hollow heterogeneous architectures with p-n heterojunction showed significantly increased photocatalytic water splitting efficiency under simulated solar irradiation. This was attributed to the synergistic effect of the proportional p-n heterojunction, special hierarchical hollow and porous morphology, enhanced visible light absorption, improved photoinduced charge separation, and photo-stability given by the composite heterojunction.
Article
Chemistry, Physical
Lei Hu, Haifeng Xue, Lingli Liu, Sheng Liang, Tao Ding, Ningning Zhou, Lili Wang, Chonghai Deng, Yongsheng Han
Summary: The shuttle effect and nucleophilic reaction in ether electrolyte and carbonate electrolyte are major obstacles for the development of lithium-sulfur batteries. By controlling the distribution of sulfur on the cathode material, the electrochemical behavior of sulfur in different electrolytes can be manipulated. Sulfur confined in microporous structures is active via solid-solid pathway, while sulfur on the outer surface of the cathode electrode has a negative effect on electrochemical performance.
APPLIED SURFACE SCIENCE
(2022)
Review
Polymer Science
Wei-Hao Pan, Wen-Jie Yang, Chun-Xiang Wei, Ling-Yun Hao, Hong-Dian Lu, Wei Yang
Summary: The combustion of polymeric materials can produce harmful smoke and toxic gases. Zinc hydroxystannate (ZHS) is an environmentally friendly flame retardant that is highly efficient and effective in suppressing smoke. However, it is often used in combination with other flame retardants for optimal results. This review aims to explore the development and mechanisms of ZHS in flame retardancy and smoke suppression for different polymer blends.
Article
Chemistry, Physical
Lei Yang, Ruyi Wang, Ningning Zhou, Dewei Liang, Delin Chu, Chonghai Deng, Hai Yu, Jianguo Lv
Summary: The introduction of oxygen vacancies (Ov) has been proven efficient in enhancing the photoelectrochemical (PEC) water splitting performance. In this study, BiVO4 (BVO) photoanodes with both bulk and surface Ov were fabricated and their roles in PEC performance were investigated. The bulk Ov increased carrier density and improved electron-hole separation efficiency, while the surface Ov provided abundant active sites for charge injection. The synergistic effect between the bulk and surface Ov resulted in highly promoted PEC water splitting activity, offering a promising strategy for efficient solar water splitting systems.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yunyun He, Hanmei Hu, Jian Wang, Xueying Wang, Mei Sun, Changan Tian, Chonghai Deng
Summary: Binary multi-scale CdS/ZnO heterogeneous architectures composed of 0D CdS nanoparticles on 3D flower-like structures formed by 2D ZnO nanoflakes were successfully fabricated. The optimized CZ-3 showed a H2 generation rate of 15.682 mmol g-1 h-1 under simulated solar irradiation, which was 15.25, 101.17, and 39.70 times higher than pure ZnO, bare CdS, and physical mixture, respectively. The photocatalytic oxidation kinetics rate constant of optimized CZ-3 in Congo red degradation was measured to be 0.05686 min-1 under simulated sunlight, which was 7.21, 9.07, and 5.82 times higher than pure ZnO, pure CdS, and physical mixture, respectively. The improved photocatalytic performance of CdS/ZnO composite was attributed to the synergetic multi-scale heteroarchitecture and interfacial heterojunction. A proposed photocatalytic electron transfer mechanism is based on perfect band matching and free radical experiments.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Chonghai Deng, Xiaohui Ling, Lulu Peng, Tao Wang, Rui Xu, Yibin Zhu, Wenlong Zhang, Peipei Sun, Yiping Wu, Hanmei Hu, Yongsheng Han, Huirong Le
Summary: Developing noble-metal-free photocatalysts for enhancing photocatalytic hydrogen evolution reaction (HER) under solar lighting is achieved through the fabrication of hierarchical heteroarchitectures comprised of hexagonal CdS nanoparticles (NPs) decorating onto 3D porous biomass-derived carbon (PBC) honeycomb-like architectures. The enhanced photocatalytic activity of CdS/PBC composite is attributed to the multi-channel synergistic effect, including increased solar absorption, enhanced charge migration, and improved mass-transfer efficiency. The maximum H-2-evolving efficiency achieved over CdS/PBC-3 is 14.67 mmol·h-1 under simulated solar irradiation, which is 43.1 times higher than that of pure CdS counterpart.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Lei Yang, Ruyi Wang, Delin Chu, Zhuo Chen, Fangtao Zhong, Xiaoqing Xu, Chonghai Deng, Hai Yu, Jianguo Lv
Summary: In this study, BiVO4 films were synthesized and Cu2O was electrodeposited to form BiVO4/Cu2O heterojunction electrodes for photoelectrochemical water splitting. By controlling the electrodeposition potential, the semiconductivity behavior of Cu2O on the surface or inside of BiVO4 can be adjusted for different reactions. An optimized BiVO4/Cu2O/Co-Pi photoanode achieved an anodic photocurrent density of 1.97 mA cm-2 at 1.23 V vs. RHE. A reverse arrangement of the BiVO4/Cu2O heterojunction structure was observed when Cu2O was deposited inside BiVO4. The fabricated BiVO4/Cu2O-C photocathode showed a cathodic photocurrent density of -2.9 mA cm-2. A unbiased solar tandem cell was also constructed using BiVO4/Cu2O-C photocathode and BiVO4/Cu2O/Co-Pi photoanode, which exhibited a photoelectric current of 0.1 mA cm-2 without applying external voltage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Lifeng Dou, Yuanming Li, Lei Dong, Shuao Zhang, Yuanqi Wu, Yu Gong, Wei Yang, Hongdian Lu, Sane Zhu, Xiaoguo Zhou
Summary: A panchromatic light-absorbing C-70-P-B triad was synthesized and used as a heavy atom-free organic triplet photosensitizer for photooxidation. The photophysical processes were comprehensively investigated, and efficient energy transfer was confirmed. The C-70-P-B showed excellent photooxidation capacity, making it a promising candidate for various applications.
Article
Green & Sustainable Science & Technology
Chonghai Deng, Lulu Peng, Xiaohui Ling, Tao Wang, Rui Xu, Yibin Zhu, Chenchen Wang, Xuehui Qian, Lili Wang, Yiping Wu, Hanmei Hu, Yongsheng Han
Summary: A biochar-based composite photocatalyst is fabricated by a green microwave-assisted chemical deposition method, which shows significantly enhanced photocatalytic activities for hydrogen evolution. The optimized ZCS/BA sample achieves an average photocatalytic hydrogen production efficiency 24.5 times higher than monolithic ZCS alloy. The enhanced performance is attributed to the synergistic effect of the heteroarchitecture and the interfacial interaction, which promotes sunlight absorption, charge carrier separation, and chemical reaction dynamics.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Ningning Zhou, Rui Liu, Xinwei Wu, Yile Ding, Xiang Zhang, Sheng Liang, Chonghai Deng, Guangchao Qin, Zhulin Huang, Bin Chen
Summary: We proposed a convenient heterostructure engineering strategy to integrate ultra-small Nickel sulfide (Ni3S2) laminar nanocrystallines and amorphous NiFe-(oxy) hydroxides (NiFeOXHy) nanosheets as three-dimensional (3D) freestanding catalyst to regulate electric conductivity and boost mass transport. These super-hydrophilic Ni3S2/NiFeOXHy heterostructure nanosheets with large specific surfaces can create strongly synergistic couplings of accessible active sites at the interfaces, expedite the electrolyte penetration and make gas bubbles to rapidly release the surface, significantly facilitating intrinsic the kinetics for oxygen evolution reaction (OER). Intriguingly, the self-supported Ni3S2/NiFeOXHy heterostructure nanosheets array displays remarkable OER activity with ultralow overpotentials of only 209 and 243 mV at 50 and 100 mA cm-2, small Tafel slope of 79.8 mV dec- 1, as well as good stability up to 55 h. Also, the Ni3S2/NiFeOXHy
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Multidisciplinary
Yiping Wu, Zhengzhong Cheng, Xiaohui Ling, Lulu Peng, Chonghai Deng
Summary: An efficient UV-Vis-NIR-activated photocatalyst for CO2RR is constructed by decorating nanosized CdS on the up-conversion component of NYFYE. The CdS/NYFYE composite photocatalyst exhibits significant CO2 reduction activities under NIR light and greatly boosted CO and CH4 production under simulated sunlight. This study provides a feasible strategy for designing a new photocatalyst with utilization of sunlight and a durable structure to obtain high-efficiency CO2 reduction.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Nanoscience & Nanotechnology
Hanmei Hu, Yunyun He, Hong Yu, Dongcai Li, Mei Sun, Yanyan Feng, Chuanyue Zhang, Haoran Chen, Chonghai Deng
Summary: This study focuses on the development of a noble-metal-free nanoheterojunction composed of zero-dimensional CdS nanograins and two-dimensional SnS(2)nanosheets, which exhibits outstanding photocatalytic performance for water purification and hydrogen production from photolysis.
Article
Electrochemistry
Ao Li, Anthony Chun Yin Yuen, Wei Wang, Timothy Bo Yuan Chen, Chun Sing Lai, Wei Yang, Wei Wu, Qing Nian Chan, Sanghoon Kook, Guan Heng Yeoh
Summary: The increasing popularity of lithium-ion battery systems has led to a growing interest in optimizing their performance, thermal stability, and fire safety, especially in electric vehicles and energy storage systems. This paper presents a comprehensive investigation of the temperature distribution and heat exchange process in battery packs using a three-dimensional electro-thermal model coupled with fluid dynamics. The results demonstrate the effectiveness of an artificial neural network model for optimizing battery design and achieving a decrease in maximum temperature and temperature difference. The simulation results provide practical guidance for optimizing battery configuration and cooling efficiency, while ensuring safety performance. The innovative approach of utilizing high-fidelity electro-thermal/CFD numerical inputs for ANN optimization has the potential to enhance thermal management and reduce the risks of thermal runaway and fire outbreaks.
Article
Engineering, Environmental
Chonghai Deng, Tao Wang, Fan Ye, Xiaohui Ling, Lulu Peng, Hanmei Hu, Hong Yu, Kangze Ding, Yiping Wu, Qian Dong, Huirong Le, Yongsheng Han
Summary: A novel CuO/BiOBr composite photocatalyst with p-n heterojunction was fabricated, showing greatly enhanced photocatalytic activity in degrading benzene-containing pollutants under visible light irradiation. The improved activity is attributed to the appropriate p-n heterojunction between CuO and BiOBr.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)