Article
Energy & Fuels
Ki-Hun Nam, Vinoth Ganesan, Do-Hyeon Kim, Jeong-Hee Choi, Cheol-Min Park
Summary: This study analyzes the Na reaction pathway of bismuth and creates rational designs for Bi-based nanocomposite materials to improve their Na storage performance. The metal-organic framework-derived polyhedral Bi nanocomposite exhibits superior Na storage performance with high reversible capacity and rate capability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Zhiguo Rong, Canfeng Fang, Zhongyuan Zhang, Wenfang Miao, Xiyang Li, Jingshuang Liang, Wenfei Yang, Yinong Wang, Xiane Guo, Youngguan Jung, Xinglong Dong
Summary: Molybdenum oxides have been studied as anode materials for lithium ion batteries due to their high specific capacities. A novel technique has been developed to synthesize carbon-coated nanocomposites, which exhibit excellent cycling performance and rate capability for promising anode materials.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Multidisciplinary
Dickon H. L. Ng, Sheng Li, Jun Li, Jinning Huang, Yingxue Cui, Jiabiao Lian, Chuan Wang
Summary: The research found that the phase-engineered α/h-MoO3 homojunctions have excessive hetero-phase interface, creating more active sites for Li+ storage and inducing a built-in electric field to enhance electron/ion transport. This has led to higher capacity and rate performance in lithium-ion batteries compared to using single-phase MoO3.
Article
Chemistry, Physical
Di Wu, Fei Ge, Shijun Xing, Wenxu Ji, Luming Peng
Summary: By using the layered structural MoO2/carbon composite as anode material, significant improvements in cycling and rate capability can be achieved, attributed to enhanced lithium ion diffusion rate, electronic conductivity, and mechanical integrity of the composite. This provides a strategy for designing and preparing electrode materials containing carbon for better energy storage properties.
Article
Chemistry, Physical
Deyi Zhang, Ze Yang, Wenjing Liu, Xingru Yan, Qin Liu, Xiaodong Li, Changshui Huang, Yuliang Li
Summary: Due to the high content of sp-hybridized carbon atoms, carbyne based materials exhibit superior conductivity and ultra-high theoretical capacity, making them ideal for high-performance anode applications. However, the synthesis of carbyne alternating carbon-carbon triple and single bonds faces challenges due to instability of synthetic intermediates and unwanted side reactions. In this study, a smart Greedy Snake strategy was employed to synthesize Si capped alkyne rich carbon (Si-Alkyne-C) materials, which showed excellent stability and high capacity as anode electrodes. The Si-Alkyne-C materials were prepared on a copper surface through carbon-carbon coupling, with Si effectively protecting the intermediates generated during the reaction. The resulting Si-Alkyne-C exhibited a reversible capacity of up to 2776 mAh/g at a current density of 50 mA/g and an average capacity of approximately 1202 mAh/g at a high current density of 5000 mA/g for 5000 cycles, outperforming other carbon and anode materials. These findings not only provide a facile method for preparing carbyne based materials, but also open up possibilities for high-capacity anode material synthesis.
Article
Engineering, Environmental
You-Kang Duan, Zhi-Wei Li, Shi-Chun Zhang, Tong Su, Yan-Fang Ma, Ai-Jun Jiao, Zhen-Hai Fu
Summary: This study synthesized a rhombic-shaped Mn2SnO4@C composite material with a uniform carbon coating, serving as an anode material for LIC. The material demonstrated a dual lithium storage mechanism and exhibited excellent cycling stability. A novel LIC assembled with this anode and coconut shell biomass carbon cathode delivered ultrahigh energy density and maintained high capacity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xiujuan Wang, Sen Zhang, Yong Shan, Ling Chen, Guanyuan Gao, Xiaolin Zhu, Bin Cao, Xiaoming He
Summary: In this study, a MoSe2-SnS heterostructure material was constructed to improve rate performance and cyclability for Li/K storage through the electric-field effect generated by heterointerfaces accelerating charge transfer kinetics. When used to construct K-ion capacitors, the material exhibited outstanding performance and long lifespan.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Kainian Chu, Zhiqiang Li, Shikai Xu, Ge Yao, Yang Xu, Ping Niu, Fangcai Zheng
Summary: In this study, a hybrid structure of NiO nanocrystals uniformly distributed into nitrogen-doped porous carbon matrix (NiO@N-C) was successfully synthesized using a facile MOF-derived strategy. The NiO@N-C structure exhibited excellent electrochemical performances and cycling stability, showing its potential as an anode material for lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Tao Li, Shouwu Gao, Kun Li, Guiju Liu, Xiaoli Sheng, Dawei Shang, Limin Wu, Shaojuan Chen, Yiqian Wang, Shaohua Wu
Summary: In this study, novel nanocomposite membranes constructed with Mo-based compound nanocrystals loaded carbon nanofibers (CNFs) were successfully generated by a combination of electrospinning molybdenum acetylacetone-contained polyacrylonitrile (PAN) solution and subsequent annealing process. Different types of Mo-based nanocrystals were formed with the increase of annealing temperature. The generated CNF-based nanocomposite membranes exhibited high specific capacity and excellent cycling stability, making them suitable for various flexible electrochemical devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wenwen Wang, Hongyun Cui, Jiwen Cui, Tong Wang, Jingquan Sha, Guodong Liu
Summary: PW12 @ Co3O4 @ GO composites were successfully fabricated to address the shortcomings of Co3O4 as an anode material for lithium-ion batteries. The results showed that the introduction of PW12 and GO improved the ion and charge transfer rate of Co3O4 and maintained its capacity retention rate.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xuwu Xiao, Zhiqiang Wang, Wenli Yao, Qian Zhang, Shengwen Zhong, Zhengquan Yan
Summary: In this work, nano Sn-SnOx embedded in multichannel hollow carbon nanofibers (Sn-SnOx@MCNF) were found to improve the lithium storage property of tin-based oxides. Sn-SnOx@MCNF exhibited quick ion transfer rate, enough catalytic active sites, high structure stability, little agglomeration, and superior buffering volume change during alloying/dealloying processes. The SnSnOx@MCNF-based electrodes demonstrated predominant reversibility, large capacity, and excellent rate capability during the lithium intercalation process. In practical applications, SnSnOx@MCNF-based electrodes showed a high reversible capacity of 669.2 mAh g-1 even after 600 cycles at 1.0 A g-1 and a high-rate capacity of 525.1 mAh g-1 at 4.0 A g-1. Sn-SnOx@MCNF could be a potential anode material for Li-ion batteries with superior Li-storage performance. Furthermore, a detailed synergistic enhancement mechanism between MCNF and nano Sn-SnOx was proposed.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Lirong Yang, Ziru Niu, Chunmei Wang, Zhigang Liu, Xiaoxin Feng
Summary: Biomass-derived porous carbon/MoO2@TiO2 (LC/MoO2@TiO2) anode materials were prepared via hydrothermal route for lithium-ion batteries (LIBs). Transmission electron microscopy and energy dispersive X-ray spectroscopy of LC/MoO2@TiO2 showed that MoO2 and TiO2 nanoparticles were uniformly embedded in the porous and surface of honeycomb porous carbon (LC). The LC/MoO2@TiO2 anode exhibits excellent rate capability and maintains a stable specific capacity of-600 mAhg-1 at a current density of 100 mAg-1 after 100 cycles. Moreover, at a current density of 500 mAg-1 its reversible capacity can reach 310 mAhg-1 after 250 cycles. Therefore, the structure of MoO2 and TiO2 nanoparticles anchored of a porous LC can not only buffer the volume change during lithiation /delithiation process but also provide more active surface area, and more convenient and efficient channel for lithium-ion transport and storage.
SOLID STATE IONICS
(2023)
Article
Chemistry, Physical
Zhicheng Wang, Xing Chen, Dajun Wu, Tao Zhang, Guikai Zhang, Shengqi Chu, Bin Qian, Shi Tao
Summary: In this study, a new kind of MoO2 nanoparticles with nitrogen-doped multiwalled carbon nanotubes (MoO2/N-MCNTs) was fabricated as an anode for lithium-ion batteries (LIBs). The strong metal oxide-support interaction (SMSI) of MoO2/N-MCNTs improved the low-rate capability and fast capacity decaying issues of the molybdenum dioxide anode material, resulting in high-rate performance and long durability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Devin McGlamery, Charles McDaniel, Wei Xu, Nicholas P. Stadie
Summary: Direct pyrolysis of coronene at 800°C produces low-surface-area, nanocrystalline graphitic carbon with a uniquely high content of hydrogen-type lithium binding sites. The lithiation of these sites is characterized by intermediate-strength, capacitive lithium binding, and is distinct from both capacitive lithium adsorption and intercalation-type binding. The lithiation of hydrogen-type sites is reversible and remains stable even at ultrafast current rates, making coronene-derived carbon an exceptional candidate for high-energy-density battery applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Qing Ji, Xiaoping Chen, Ya-Jun Cheng, Qingyu Dong, Yanbin Shen, Zhaohui Yang, Binjie Hu, Yonggao Xia
Summary: In this study, niobium dioxide nanoparticles coated in a continuous carbon matrix were constructed through CO2/H-2 coupling treatment. The resulting carbon-emcoated NbO2 sample exhibited improved electrochemical performance and a high reversible capacity of 391 mAh g(-1) after 350 cycles at 0.2 C.
Article
Chemistry, Multidisciplinary
Ruohan Yu, Yexin Pan, Yihang Liu, Liang Zhou, Dongyuan Zhao, Jinsong Wu, Liqiang Mai
Summary: A sub 10 nm scale interfused TiO2/SiOx hybrid with a bicontinuous structure was constructed through the oxidation of MAX Ti3SiC2 ceramic. This hybrid material exhibited a mutual stabilizing effect during lithiation, resulting in a high and stable specific capacity with low volume expansion. The concept of mutual-stabilizing effect can be applied to the design of LIB anode materials with high capacity and longevity.
Article
Multidisciplinary Sciences
Shuai You, Haipeng Zeng, Yuhang Liu, Bing Han, Min Li, Lin Li, Xin Zheng, Rui Guo, Long Luo, Zhe Li, Chi Zhang, Ranran Liu, Yang Zhao, Shujing Zhang, Qi Peng, Ti Wang, Qi Chen, Felix T. Eickemeyer, Brian Carlsen, Shaik M. Zakeeruddin, Liqiang Mai, Yaoguang Rong, Michael Gratzel, Xiong Li
Summary: High-quality perovskite light harvesters and robust organic hole extraction layers are necessary for high-performing perovskite solar cells (PSCs). The introduction of a phosphonic acid-functionalized fullerene derivative as a grain boundary modulator in mixed-cation perovskites enhances the film's tolerance against illumination, heat, and moisture. Additionally, a redox-active radical polymer, poly(oxoammonium salt), effectively p-dopes the hole-transporting material and reduces lithium ion diffusion. PSCs with power conversion efficiencies of 23.5% for 1-square-centimeter mixed-cation-anion PSCs and 21.4% for 17.1-square-centimeter minimodules were achieved, with a 95.5% retention of initial efficiencies after 3265 hours of continuous 1-sun illumination at 70±5℃.
Article
Chemistry, Physical
Wenhang Wang, Xiaoshan Wang, Zhengguang Ma, Yang Wang, Zhongxue Yang, Jiexin Zhu, Lei Lv, Hui Ning, Noritatsu Tsubaki, Mingbo Wu
Summary: By synthesizing carburized indium oxide nanorods (In2O3-C), the electronic structure of indium was regulated, resulting in a high Faradaic efficiency of 97.2% and a wide potential range of above 90% current density. In addition, it efficiently produced formate in the flow cell.
Article
Chemistry, Multidisciplinary
Dan Deng, Kai Fu, Ruohan Yu, Jiao Zhu, Hongwei Cai, Xiangchen Zhang, Jinsong Wu, Wen Luo, Liqiang Mai
Summary: Oriented-attachment-regulated Zn stacking is reported to improve the utilization rate and reversibility of Zn anodes. Using Prussian blue analog (PBA) as a substrate, the Zn plating occurs at specific sites with equal spacing, achieving high reversibility and 100% utilization rate. This study provides a proof of concept design and a practical method for developing high-utilization metal anodes and high-energy density batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lin Su, Jingke Ren, Tao Lu, Kexuan Chen, Jianwei Ouyang, Yue Zhang, Xingyu Zhu, Luyang Wang, Huihua Min, Wen Luo, Zhefei Sun, Qiaobao Zhang, Yi Wu, Litao Sun, Liqiang Mai, Feng Xu
Summary: Configurational entropy-stabilized single-phase high-entropy oxides (HEOs) have been found to exhibit reversible lithium storage and high specific capacity, which are challenging for conventional electrodes. In this study, in situ transmission electron microscopy techniques were used to investigate the reaction dynamics and structural evolutions of rocksalt-type HEOs during cycling. It was revealed that the composition-dependent conversion/alloying reaction kinetics and spatiotemporal variations of valence states are responsible for the reversible and symmetrical delithiation reactions in HEOs. The recovery of the original rocksalt structure after delithiation was observed, which is not possible in monometallic oxide systems. Rigorous electrochemical tests and postmortem TEM analysis confirmed the importance of structural recovery capability in achieving high-capacity Li-storage in HEOs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ping Hu, Ting Zhu, Congcong Cai, Xuanpeng Wang, Lei Zhang, Liqiang Mai, Liang Zhou
Summary: A series of NASICON-type Na3+xMnTi1-xVx(PO4)(3) cathode materials are designed, demonstrating multi-electron reaction and high voltage platform. The optimized material Na3.2MnTi0.8V0.2(PO4)(3) achieves a reversible 3.2-electron redox reaction, enabling high discharge capacity and ultrahigh energy density.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Lei Lv, Ruihu Lu, Jiexin Zhu, Ruohan Yu, Wei Zhang, Enhui Cui, Xingbao Chen, Yuhang Dai, Lianmeng Cui, Jiong Li, Liang Zhou, Wei Chen, Ziyun Wang, Liqiang Mai
Summary: In this study, a catalyst with excellent selectivity for electrocatalytic CO2 reduction reaction (ECO2RR) and inhibition of competing hydrogen evolution reaction (HER) has been developed by coordinating the edge defects of bismuth (Bi) with sulfur. The catalyst exhibits high product selectivity, with a HCOO- Faraday efficiency of approximately 95% and an HCOO- partial current of approximately 250 mA cm(-2) under alkaline electrolytes. Density function theory calculations reveal the mechanism behind the improved selectivity and provide guidance for the design of advanced ECO2RR catalysts based on bismuth.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Yujie Deng, Xinyuan Li, Ran Chen, Congcong Cai, Liqiang Mai, Liang Zhou
Summary: N-doped hollow carbon nanorods (NHCRs) with abundant micropores/mesopores and ultrahigh surface area were synthesized and used in ionic liquid (IL) electrolyte-based EDLCs, exhibiting high specific capacitance, impressive energy density, and decent cyclability. The high energy density originates from the abundant ion-available micropores, while the decent power density results from the hollow ion-diffusion channels and excellent wettability in ILs. This study provides important insights into the construction of porous carbon materials for EDLCs.
Article
Multidisciplinary Sciences
Jian Jin, Joshua Wicks, Qiuhong Min, Jun Li, Yongfeng Hu, Jingyuan Ma, Yu Wang, Zheng Jiang, Yi Xu, Ruihu Lu, Gangzheng Si, Panagiotis Papangelakis, Mohsen Shakouri, Qunfeng Xiao, Pengfei Ou, Xue Wang, Zhu Chen, Wei Zhang, Kesong Yu, Jiayang Song, Xiaohang Jiang, Peng Qiu, Yuanhao Lou, Dan Wu, Yu Mao, Adnan Ozden, Chundong Wang, Bao Yu Xia, Xiaobing Hu, Vinayak P. Dravid, Yun-Mui Yiu, Tsun-Kong Sham, Ziyun Wang, David Sinton, Liqiang Mai, Edward H. Sargent, Yuanjie Pang
Summary: The carbon dioxide and carbon monoxide electroreduction reactions are promising pathways for decarbonization of chemical manufacture. By dispersing a low concentration of copper atoms in a host metal, acetate can be selectively synthesized from carbon monoxide. Through catalyst design and reactor engineering, high selectivity and Faradaic efficiency for acetate production have been achieved.
Article
Nanoscience & Nanotechnology
Ruwei Chen, Wei Zhang, Quanbo Huang, Chaohong Guan, Wei Zong, Yuhang Dai, Zijuan Du, Zhenyu Zhang, Jianwei Li, Fei Guo, Xuan Gao, Haobo Dong, Jiexin Zhu, Xiaohui Wang, Guanjie He
Summary: This study demonstrates a new strategy for stabilizing zinc anodes in aqueous zinc-ion batteries by adding trace amounts of ammonium hydroxide. The additive helps protect the zinc anodes by lowering the hydrogen evolution reaction potential, promoting the formation of a uniform solid electrolyte interphase, and homogenizing the electric field. This comprehensive protection enables dendrite-free zinc deposition and improved electrochemical performance in zinc//MnO2 full cells.
NANO-MICRO LETTERS
(2023)
Article
Energy & Fuels
Long Luo, Haipeng Zeng, Zaiwei Wang, Min Li, Shuai You, Bin Chen, Aidan Maxwell, Qinyou An, Lianmeng Cui, Deying Luo, Juntao Hu, Shangzhi Li, Xueqing Cai, Weixi Li, Lin Li, Rui Guo, Rong Huang, Wenxi Liang, Zheng-Hong Lu, Liqiang Mai, Yaoguang Rong, Edward H. Sargent, Xiong Li
Summary: Researchers improve the stability and efficiency of perovskite solar cells by introducing a cross-linked polymer between the 2D and 3D perovskite layers, which inhibits ion diffusion.
Article
Chemistry, Multidisciplinary
Wei Zhang, Yulun Wu, Yuhang Dai, Zhenming Xu, Liang He, Zheng Li, Shihao Li, Ruwei Chen, Xuan Gao, Wei Zong, Fei Guo, Jiexin Zhu, Haobo Dong, Jianwei Li, Chumei Ye, Simin Li, Feixiang Wu, Zhian Zhang, Guanjie He, Yanqing Lai, Ivan P. Parkin
Summary: This study proposes a light-weight fluorine (F) doping strategy for high-performance sodium-ion batteries. The strategy improves the energy gap, structural stability, and electronic conductivity of manganese-rich phosphate cathodes. Experimental results show that this strategy enables outstanding rate performance and cycling stability.
Article
Chemistry, Multidisciplinary
Ruwei Chen, Chengyi Zhang, Jianwei Li, Zijuan Du, Fei Guo, Wei Zhang, Yuhang Dai, Wei Zong, Xuan Gao, Jiexin Zhu, Yan Zhao, Xiaohui Wang, Guanjie He
Summary: This study proposes a hydrated deep eutectic electrolyte with reduced free water content, which can suppress water-induced side reactions and provide high Zn2+ mass transfer kinetics. This results in highly reversible Zn anodes and high capacity Zn//NVO full cells.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yucai Wu, Huan Du, Jiexin Zhu, Nuo Xu, Liang Zhou, Liqiang Mai
Summary: The increasing energy demand necessitates the development of novel multifunctional materials for energy storage and conversion. Intricate hollow structured materials have attracted extensive attention due to their unique structure and physicochemical properties. This review summarizes the synthesis strategies and energy applications of intricate hollow structured materials, including lithium-/ sodium-/potassium-ion batteries, lithium-sulfur batteries, supercapacitors, electrocatalysis, photocatalysis, and dye-sensitized solar cells. The existing problems and future research directions for intricate hollow structures are also discussed.
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
(2023)
Review
Chemistry, Multidisciplinary
Jiexin Zhu, Lei Lv, Shahid Zaman, Xingbao Chen, Yuhang Dai, Shenghua Chen, Guanjie He, Dingsheng Wang, Liqiang Mai
Summary: This review summarizes the current research progress and future application prospects of electrochemical CO2 methanation on single-site catalysts (SSCs). It discusses the CO2 methanation mechanism, primary activity descriptors, coordination structure and design of SSCs, and several in situ characterization methods for tracking the structural changes in SSCs. This review provides insights into the further exploitation of SSCs for selective CO2 methanation and inspires the rational design of SSCs in electrochemical CO2 methanation research.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)