Article
Chemistry, Multidisciplinary
Zhaodi Fan, Jia Jin, Chao Li, Jingsheng Cai, Chaohui Wei, Yuanlong Shao, Guifu Zou, Jingyu Sun
Summary: A high-capacitance and long-life ZIC is demonstrated by 3D printing Ti3C2 MXene cathode, with excellent areal capacitance and rate capability. The dual-ion storage mechanism of the 3D-printed MXene cathode synergizes pseudocapacitive behavior of H+ and electrical double-layer capacitive behavior of Zn2+, outperforming state-of-the-art ZICs in terms of energy/power density and lifespan.
Article
Chemistry, Physical
Chenyang Li, Dongdong Zhang, Jin Cao, Pengfei Yu, Manunya Okhawilai, Jin Yi, Jiaqian Qin, Xinyu Zhang
Summary: A NiFe-LDH/Ti3C2 MXene hybrid with superior electrochemical performance for lithium storage was prepared and studied, showing great potential for application in energy storage.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Lei Zhong, Xueqing Qiu, Shunsheng Yang, Shirong Sun, Liheng Chen, Wenli Zhang
Summary: Biomass-derived carbons are promising anodes in potassium-ion hybrid capacitors due to their tunable structure and competitive cost-effectiveness. Nitrogen-doping strategy could enhance the K-ion storage performance by surface capacitive adsorption mechanism. This study proposed a supermolecule-regulated strategy to achieve highly nitrogen-doped carbon anodes with superior performances.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Quanzhou Du, Yuhua Zhao, Yujuan Chen, Jianming Liu, Huanhuan Li, Guangyue Bai, Kelei Zhuo, Jianji Wang
Summary: Nitrogen-doped porous carbon nanosheets (NPCNs) with unique structure were studied for their potential application as anode and cathode material in potassium-ion hybrid capacitors (PIHCs). The structural changes of NPCNs during potassiation and depotassiation were analyzed using Raman spectroscopy and transmission electron microscopy. The PIHC device assembled with NPCNs exhibited a superior energy density of 128 Wh kg-1 and a capacity retention of 90.8% after 9000 cycles. This research contributes to the development of double-functional self-matching materials for high-performance hybrid energy storage devices.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Binbin Chang, Yanzhen Guo, Donghai Wu, Li Li, Baocheng Yang, Jianfang Wang
Summary: Ti3C2 MXene, with its superior conductivity and surface chemistry, combined with Au nanospheres, has been shown to efficiently fix N-2 under ambient conditions in pure water. The synergy between Ti(4-x)+ active sites and plasmon-generated hot electrons in r-Ti3C2/Au leads to remarkably enhanced N-2 photofixation activity with ultrahigh selectivity and without competing H-2 evolution. This work demonstrates a promising approach for the rational design of efficient MXene-based photocatalysts.
Article
Biochemistry & Molecular Biology
Xin Tao, Linlin Zhang, Xuedong He, Lingzi Fang, Hongyan Wang, Li Zhang, Lianghao Yu, Guang Zhu
Summary: This study presents a nitrogen-doped porous MXene nanofiber as a flexible electrode material for flexible supercapacitors. The nanofiber structure allows for efficient electrolyte infiltration, reducing ion transport channels, while uniform nitrogen doping enhances pseudocapacitive performance. The assembled supercapacitor exhibits excellent electrochemical performance, long-term durability, and high energy density, making it promising for flexible electronics applications.
Article
Chemistry, Physical
Xiaohui Li, Yakun Tang, Lang Liu, Yue Zhang, Yang Gao, Mao Qian, Wenjie Ma
Summary: In this study, cobalt-doped TiO2@C hierarchical nanocomposite was prepared through a smart strategy. Compared with TiO2@C, Co4+-TiO2@C showed the highest specific capacity and extraordinary rate performance in hybrid magnesium-lithium batteries. The superior electrochemical performance was attributed to the synergistic effect of hierarchical structure and cobalt-doping.
Article
Materials Science, Multidisciplinary
Yuyang Yi, Hao Ma, Xueyu Lian, Qingqing Mei, Zhihan Zeng, Yu Zhao, Chen Lu, Wen Zhao, Wenyue Guo, Zhongfan Liu, Jingyu Sun
Summary: Nitrogen doping in carbon materials has been shown to enhance potassium-ion storage. This study introduces hierarchical N-doped carbon nanopolyhedron@nanosheet composite with tunable doping configurations for advanced potassium-ion hybrid capacitor (PIHC) anode, achieving outstanding rate capability and cyclic performance in half-cell tests. The assembled PIHC full device exhibits high energy/power density and favorable cyclicability, providing innovative insights for high-performance PIHC applications.
Article
Chemistry, Analytical
Xiao Zhang, Dong An, Zhaoshun Bi, Wei Shan, Beibei Zhu, Long Zhou, Liangmin Yu, Han Zhang, Shuwei Xia, Meng Qiu
Summary: A nitrogen-doped carbon coated Ti3C2-MXene heterostructure-based electrochemical sensor was developed for simultaneous determination of Cd2+ and Pb2+ in seawater and tap water. The sensor exhibited excellent performance with low detection limits, excellent selectivity, and high resolution. The heterostructure and nitrogen-doping improved the conductivity and determination performance of the sensor.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yude Zhang, Xiaojiao Du, Meng Wei, Xueling Shan, Wenchang Wang, Ding Jiang, Hiroshi Shiigi, Zhidong Chen
Summary: In this study, a dual-photoelectrode self-powered system was developed for sensitive detection of Microcystin-RR. The introduction of S-doped Ti3C2 nanosheets integrated with semiconductors generated Schottky junctions, facilitating electron-hole pair separation and broadening light absorption. After immobilizing the MC-RR aptamer, a novel signal-off sensor based on steric hindrance effect was constructed, exhibiting wide detection range, low detection limit, and good selectivity, stability, and reproducibility.
ANALYTICA CHIMICA ACTA
(2023)
Article
Engineering, Environmental
Ding Jiang, Meng Wei, Xiaojiao Du, Ming Qin, Xueling Shan, Zhidong Chen
Summary: Nitrogen-doped ZnO quantum dots decorated nitrogen-doped Ti3C2 MXene composites were designed and prepared, showing enhanced Electrochemiluminescence (ECL) performance with increasing nitrogen-doping levels. A novel ECL sensor was constructed for sensitive detection of chloramphenicol using the resultant nanocomposites, demonstrating wide linear range, low detection limit, and high stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Hang-Yu Zhou, Liang-Wen Lin, Zhu-Yin Sui, Hai-Yan Wang, Bao-Hang Han
Summary: In this study, a holey Ti3C2 MXene-derived composite (pTi(3)C(2)/C) was proposed as an anode material for lithium-ion capacitors (LICs). The pTi(3)C(2)/C exhibited enhanced kinetic properties due to decreased surface groups and expanded interplanar spacing. The LIC fabricated with pTi(3)C(2)/C anode and activated carbon cathode achieved a maximum energy density of 110 Wh kg(-1) and a considerable energy density of 71 Wh kg(-1) at 4673 W kg(-1). This work provides insights into the structural design and tunable surface chemistry of MXene for improved LIC performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Muhammad Amirul Aizat Mohd Abdah, Jayesh Cherusseri, Nurul Akmaliah Dzulkarnain, Marliyana Mokhtar, Mohd Sukor Su'ait, Yee Seng Tan, Muhammad Norhaf fis Mustafa, Mohammad Khalid, Arshid Numan, Amr Radwan
Summary: In this study, MXene hybrid electrodes were synthesized using a novel strategy to achieve a synergistic effect between the components. The AC to Ti3C2 MXene ratio was adjusted to optimize electrochemical efficiency. The hybrid AC_Ti3C2 (8:2) electrode exhibited the highest initial specific capacity and maintained good performance after consecutive cycles, indicating excellent rate capability. The work confirms the potential application of AC as an interlayer spacer in synthesizing Ti3C2 MXene hybrids for next-generation LIBs.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xiaoxin Lv, Zixiao Deng, Menglian Wang, Jiujun Deng
Summary: In this study, carbon-doped TiO2/Fe2O3 composite derived from Ti3C2 MXene was fabricated via a simple one-step heat treatment, demonstrating excellent lithium-ion storage performance and cyclic stability as an anode for lithium-ion batteries. The enhanced electrochemical performance can be attributed to the synergistic effects of carbon doping, layered structures of TiO2, and the anchoring of Fe2O3 nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Sairao Zhao, Xiao Luo, Yongfa Cheng, Zhixiang Shi, Tao Huang, Shanghua Yang, Haojian Zheng, Yun Bi, Jun Zhang, Qiuyue Shi, Minglei Cao, Chuankun Zhang, Yang Yue, Yanan Ma
Summary: In this study, a flexible V2CTx electrode was reported and assembled into a zinc ion hybrid capacitor (ZIHC). The few-layer V2CTx based ZIHC showed higher areal capacitance and excellent electrochemical performance, attributed to its richer active sites and shorter ion transport routes. Additionally, the ZIHC exhibited good cycling stability and low self-discharge rate.
CHEMICAL ENGINEERING JOURNAL
(2023)