JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Xianfeng Sun,Yan Zhang,Cheng Du,Mingjiang Xie,Jian Chen,Liu Wan
The interface engineering strategy of hybridizing transition metal sulfides (TMSs) with other electroactive materials has proven to be a powerful strategy to exploit advanced electrode materials for supercapacitors (SCs). Herein, CuNi 2 S 4 nanospheres were grown directly onto carbon cloth (CC) by a single-step electrodeposition procedure, and the bimetallic selenide NiCoSe 2 then was deposited over the CuNi 2 S 4 nanospheres to create a flexible CuNi 2 S 4 @NiCoSe 2 hybrid electrode material with special core–shell architecture. The nanoflower-like hybrid structure not only increases the redox active sites but also provides short paths for electron/ion transport and improves redox reaction kinetics. The CuNi 2 S 4 @NiCoSe 2 electrode achieves a capacity value of 979.2 C g −1 /3.43 C cm −2 at 1 A g −1 along with good rate performance, outperforming pristine CuNi 2 S 4 and NiCoSe 2 . This wonderful supercapacitive behavior is related to the synergy of CuNi 2 S 4 ’s high conductivity and NiCoSe 2 ’s high electroactivity. Furthermore, the hybrid supercapacitor using the CuNi 2 S 4 @NiCoSe 2 cathode along with the porous carbon from pine pollen anode achieves an energy density (78.9 Wh kg −1 at 720.2 W kg −1 ) and maintains 91.4 % of original capacity after 50,000 cycles. These findings affirm that the CuNi 2 S 4 @NiCoSe 2 heterostructure is structurally superior as an electrode material in advanced energy storage systems.
研究领域:
材料科学
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能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
IONICS
·
2023
·Vol. 29
·期 9
·3505-3515
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IF 2.8
Zhang Ya-hui,Wang Jia-le,Yan Hong-yang,Zhao Jiu-tong,Wang Dan-dan,Luo Shao-hua,Wang Qing,Liu Xin
Due to the synergistic effect between multiple elements, bimetallic selenides materials can generate more active sites in the electrochemical reaction process, which can significantly improve the electrical conductivity for anode materials. Nevertheless, it is liable to produce severe volume expansion and exhibit the poor electrochemical performance. Therefore, we decided to modify it by carbon cladding; the carbon-coated short rod-like NiCoSe 2 (NiCoSe 2 @C) nanomaterials were synthesized through facile hydrothermal reaction, dopamine coating, and carbonization process. It was found that the as-prepared NiCoSe 2 @C nanomaterial exhibits stable structure, outstanding cycling stability, and high pseudocapacitive contribution. Specifically, the specific charging capacity is 370.6 mAh g −1 (0.1 A g −1 , 100 cycles) and 304.8 mAh g −1 (2 A g −1 , 600 cycles) as anode when used for SIBs. Comparing with the pure NiCoSe 2 nanomaterial, the construction of carbon layer can mitigate the effect of volume expansion and reduce the generation of adverse materials, thus enhancing the cycling stability.
研究领域:
材料科学
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电化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Yun Xing,Xin Tang,Chengshuang Ling,Yu Zhang,Zhiyuan He,Guangying Ran,Huimin Yu,Ke Huang,Zhirong Zou,Xiaoli Xiong
Transition metal selenides are widely used in electrocatalysis on account of high electrical conductivity , good stability and low cost. In this study, using nickel-cobalt layered double hydroxide (NiCo-LDH) as precursor, a simple two-step method was used to prepare three-dimensional (3D) Setaria viridis-like NiCoSe 2 nanoneedles arrays on nickel foam (NiCoSe 2 NNA/NF). Benefiting from the abundant catalytic active sites provided by the 3D nanoneedles array structure, the covalent reciprocity between Ni, Co and Se can effectively facilitate the free movement of ions and electrons on the electrode surface. As a hydrazine sensor, the electrochemical performance of the NiCoSe 2 NNA/NF was studied by cyclic voltammetry (CV) and other electrochemical techniques , which exhibits outstanding electrocatalytic performance. When the signal-to-noise ratio is 3 (S/N = 3), the sensitivity is 16170 μA mM −1 cm −2 , the lower detection limit is 0.5 μM. It also shows well anti-interference and long-term stability. In addition, the successful applications in water environments samples also demonstrated the feasibility of the sensor. This method provides a new idea for the development of selenide-based electrochemical sensors .
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2021
·
IF 9.127
Beirong Ye,Shuhao Xiao,Xianjun Cao,Junsong Chen,Aijun Zhou,Qiang Zhao,Wen Huang,Jinshu Wang
Interface engineering of electro-active materials for supercapacitor (SC) is an effective strategy to adjust their corresponding physic-chemical properties. In this article, the core/shell structured NiTe@NiCoSe 2 composite with a 3D hierarchical architecture has been reasonably defined by coating large theoretical capacity NiCoSe 2 on NiTe nanorods using a simple hydrothermal method followed by electrodeposition process. Density functional theory (DFT) calculations indicate that the NiTe@NiCoSe 2 sample has an enhanced density of state (DOS) near the Fermi level , which provide additional theoretical assistance for the improved electrochemical performance. Thanks to the well-designed core/shell architecture and high-efficient synergistic effects among multi-components, the prepared NiTe@NiCoSe 2 electrode exhibits excellent energy storage capability. In addition, the NiTe@NiCoSe 2 //AC asymmetric supercapacitor (ASC) delivers a maximum energy density of 59.8 Wh kg −1 at 800 W kg −1 . Importantly, the outstanding durableness with 96.6% capacitance retention after 10000 cycles manifests the good stability of the core/shell structure of the NiTe@NiCoSe 2 electrode. These superior electrochemical performances show that the current composite materials are comparable to the most Se/Te-based electrodes for supercapacitors .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2022
·Vol. 52
·期 2
·819-828
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IF 2.047
Zhao Qiang,Zhou Jinglin,Zheng Xiang,Wang Ying,Ye Beirong
Electrodes with excellent flexibility, wide voltage window and high capacity are the key to the performance of asymmetric supercapacitors (ASCs). Herein, a hybrid electrode based on modified nitrogen/alkali co-doped carbon cloth with NiCoSe 2 (NCSe/N-Na-ACC) was successfully synthesized and directly used as a positive electrode for ASCs. The surface-modified carbon cloth with N and Na ions effectively moderated the electronic conductivity and activity of the oxygen evolution reaction (OER), resulting in an enlarged overall voltage window, while NCSe provided high specific capacity. Therefore, the voltage of the NCSe/N-Na-ACC electrode increased to 1 V in aqueous electrolyte. As a result, the solid-state ASC assembled by the modified electrode delivered gratifying energy density of 139.5 W h kg –1 . Meanwhile, the excellent capacitance retention of 97.1% after 10,000 charge and discharge cycles implies that the ASC assembled with the NCSe/N-Na-ACC electrode has excellent cycling stability.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2021
·
IF 4.464
Chengchao Wang,Ze Wang,Datong Wu,Wenrong Cai,Yong Qin,Yong Kong
We report on a hollow NiCoSe 2 /C prepared through a step-by-step derivatization method as high-performance supercapacitor electrode. Hollow nickel-cobalt bimetallic layered hydroxide (NiCo-LDH) derived from a typical zeolitic imidazolate framework (ZIF-67) was selenized to NiCoSe 2 via in situ selenylation, which was then coated with a layer of carbon via the hydrothermal method by using glucose as the carbon source. The electrochemical performances of the as-synthesized NiCoSe 2 /C are investigated, and the results indicate that the hollow NiCoSe 2 /C exhibits considerable specific capacity of 232.6 mAh g −1 at 1 A g −1 , good rate capability of 72.6% and high capacity retention of 88.3% after 5,000 cycles. Compared with ZIF-67, NiCo-LDH and NiCoSe 2 , the greatly enhanced electrochemical performances of the NiCoSe 2 /C can be due to the hollow nanostructure of NiCoSe 2 , enhanced electrical conductivity by the introduction of Se and C, and inhibited volume changes during the redox cycling from the protection of the carbon layer.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Tiantian Li,Kaige Liu,She Wang,Zhihang Liu,Guizhen Liao,Zhenyu Chen,PeiKang Shen
Lithium-sulfur batteries (LSBs) have enormous application potential in the flexible energy storage field due to their large theoretical specific capacities and high energy densities. However, lithium-sulfur batteries face a notorious shuttle effect problem. To address this challenge, this work reports a three-dimensional (3D) structure of binary transition metal selenides (B-TMSe) hierarchical composites (CC/NiCoSe 2 -NiO) on carbon cloth as a self-supporting sulfur host for flexible LSBs. According to the density functional theory (DFT) calculations, NiCoSe 2 can exert a synergetic effect of high affinity with Lithium polysulfides (LiPSs) and electrocatalytic activity to lower the adsorption energy barrier and accelerate the sluggish reaction kinetics of polysulfides. Consequently, the CC/NiCoSe 2 -NiO-based electrodes realize a large specific capacity of approximately 1363 mAh/g at a current density of 0.1C, excellent rate performance (454.66 mAh/g at 5C) and a reversible specific capacity of 978.9 mAh/g at 1C, along with impressive cycling stability with an attenuation rate of 0.038% per cycle for 1000 cycles. They also achieve a large reversible cycle capacity of 919.43 mAh/g at 0.2C even at a high sulfur loading (3.5 mg/cm 2 ). With a lean electrolyte (E/S ratio 10 µL/mg) and a high sulfur loading of 2.65 mg/cm 2 , a large capacity of 934.1 mAh/g is retained after 150 cycles at 0.5C. The assembled pouch cells from S@CC/NiCoSe 2 -NiO electrodes show a high initial discharge capacity of 1039.5 mAh/g at 1C at a sulfur loading of 2.65 mg/cm 2 and maintain strong stability under high twisting and buckling.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
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