Journal of Energy Storage
·
2024
·
IF 8.9
Yiping Qiu,Xingyue Wu,Denghui Tang,Junyao Li,Wenrong Cai,Laidi Xu,Yong Kong,Zheng-Zhi Yin
A Prussian blue analogue is grown in situ on nickel foam (NF) by a co-precipitation strategy, which is further converted into Ni-Co tellurides ((Ni-Co)Te)/NiTe through a hydrothermal method. The obtained (Ni-Co)Te/NiTe shows a heterogeneous and multi-dimensional structure, which displays a high areal specific capacitance of 2390.7 mF cm −2 at 1 mA cm −2 and a high capacitance retention of 80.3 % after 5000 cycles. Further, a hybrid supercapacitor (HSC) is assembled by using the (Ni-Co)Te/NiTe grown on NF (NF@(Ni-Co)Te/NiTe) as the cathode and activated carbon (AC) supported on NF (NF@AC) as the anode, respectively. The HSC exhibits a maximum energy density of 95.6 Wh kg −1 at the power density of 444.5 W kg −1 , which is higher than most of the HSCs previously reported. The synergistic effect of the heterojunction in the (Ni-Co)Te/NiTe and its multi-dimensional structure plays a crucial role in the enhanced reaction kinetics of the HSC.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2020
·
IF 16.602
Jian Qin,Hirbod Maleki Kheimeh Sari,Xiujuan Wang,Huijuan Yang,Jiujun Zhang,Xifei Li
Due to the different energy storage mechanisms, anode electrodes have been challenging to match cathode ones in sodium-ion hybrid supercapacitors (Na–HSCs), resulting in low energy and power densities of the device. As a result, engineering anode materials with excellent electrochemical performance has aroused a great deal of interest. In this work, metal oxides (Mn 2+ /Nb 5+ ) embedded into interconnected hollow carbon nanoboxes (MnO@HCNb and NaNbO 3 @HCNb) are fabricated by a simple template-assisted CVD method. Such a unique structure provides shortened solid-state transportation pathway and sufficient adsorption sites for Na + , with differing energy storage mechanisms from traditional Faradic reaction. Benefiting from it, the MnO@HCNb electrode exhibits an outstanding rate performance and an ultra-long lifespan of more than 10,000 cycles with 88.6% of capacity retention, which is rarely reported for oxide-based anodes. Moreover, energy storage mechanism of the composite and the important role of Mn/Na 2 O interface generated inside the core (MnO) - shell (C) structure during conversion reaction have been revealed. Hybrid ion storage mechanisms (adsorption, Faradic reaction and intercalation) are proposed with desirable compatibility, exhibiting uniform capacitive electrochemical behavior. Coupling with activated carbon cathode, a full cell of Na-HSC demonstrates a high energy density of 116 Wh kg −1 at 99 W kg −1 and 56.4 Wh kg −1 at 1.8 kW kg −1 . Indeed, this work is inspiring to other researchers to further improve the electrochemical performance of anode materials by adjusting their energy storage mechanisms through structural reconstruction.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Fang Xu,Qing Xia,Guoping Du,Zhaoyang Fan,Nan Chen
Transition metal phosphides (TMPs), used in hybrid supercapacitors (HSCs) as battery–type electrodes, have gain tractions for balancing the requirements for both power and energy; however, their poor structural integrity, inferior conductivity and low porosity restrict the achievable performance. Developing an elaborate material architecture for electrodes that endows mechanical robustness, superior conductivity and large surface area is a pressing need for TMPs to achieve boosted performance in supercapacitors. Here, we report a coral–like interconnected Ni 2 P nanoparticles dispersed on porous amorphous carbon matrix (Ni 2 P@C) as the electrode material with superior electrochemical performance. The Ni 2 P@C electrode exhibits a superior specific capacity of 3,631mC cm −2 at 1 mA cm −2 (979 C g −1 at 1 A g −1 ). Impressively, the assembly of Ni 2 P@C and active carbon (AC) electrodes result in an advanced HSC with energy density of 44.0 Wh kg −1 at 800 W kg −1 and cycling stability of 90.5% retention after 10,000 cycles, demonstrating this unique Ni 2 P@C structure is promising for developing practical HSC technology.
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 ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Jiaheng Wang,Jiaxu Gong,Huan Zhang,Linlin Lv,Yuxing Liu,Yatang Dai
Designing and adjusting materials with reasonable microscopic morphology is the key to improving electrochemical performance and assembling hybrid supercapacitors with excellent performance. In this work, firstly, a hydrothermal method is used to grow the NiCo-MOF (NCM) on nickel foam, then NCM is used as the precursor, and the solution containing MXene and Ni 2+ and Co 2+ are used as the electrolyte to prepare the MXene-Ni-Co@NiCo-MOF/NF (M-NC@NCM/NF) nanosheets through electrodeposition . Since the metal cations will be redistributed between the MXene layers, the nanosheets obtained by electrodeposition in the electrolyte added with MXene exhibit a unique hexagonal nanosheet morphology. This unique form can enhance the electrochemical performance, the capacity retention rate can be maintained at 75.3% after 5000 cycles, and the specific capacity can reach 855.0 C g −1 (2137.5 F g −1 ) at 1 A g −1 .
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Fangyan Liu,Xiang Chu,Haitao Zhang,Binbin Zhang,Hai Su,Long Jin,Zixing Wang,Haichao Huang,Weiqing Yang
Nickel hydroxide has shown extraordinary promise for hybrid supercapacitors because of the high theoretical capacity and low cost, but is usually limited by its low power density and complex synthetic process. Here, we report the design of a self-assembly three-dimensional (3D) porous Ni(OH) 2 for high-performance energy storage through a simple, cost-effective, and environmentally friendly solvothermal-precipitation method. The 3D structure with interconnected network provides superior electron transportation properties, and the hierarchical porous architecture facilitates quick ion diffusion. The Ni(OH) 2 obtained at 250 °C delivers a high capacitance of 2110 F g −1 at 1.0 A g −1 and a moderate cycling stability with 53% of the maximum specific capacitance over 2000 cycles at 5.0 A g −1 . Additionally, on integration of the prepared Ni(OH) 2 with hierarchically porous carbons as negative electrode material , the hybrid supercapacitor device delivers a high capacitance of 115 F g −1 and a high energy density of 40.9 W h kg −1 at a power density of 405 W kg −1 . This study not only provides a simply controllable growth method of the unique self-assembly 3D porous Ni(OH) 2 with high performance but also opens up a new approach to prepare various metallic oxides/hydroxides with excellent performance for highly promising practical energy-storage systems.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 43
·21350-21359
·
IF 9.931
Miaomiao Liang,Mingshu Zhao,Haiyang Wang,Qingyang Zheng,Xiaoping Song
In this article, a novel crystalline/amorphous Co3S4 core–shell heterostructure supported on nickel foam is fabricated through a facile method. Due to the unique structure of the crystalline Co3S4 core that provides stable mechanical support and surface-active sites and the amorphous shell that facilitates diffusion and reaction of electrolyte ions, the obtained crystalline/amorphous Co3S4 electrode shows a superior pseudocapacitive performance of 2.65 F cm−2 (2038.5 F g−1) at a current density of 5 mA cm−2 and even 1.81 F cm−2 (1392.3 F g−1) at 50 mA cm−2. In addition, the Co3S4//AC exhibits a relatively high energy density of 54.78 W h kg−1 at a power density of 400.02 W kg−1 and excellent cycling performance (about 94.8% capacitance retention over 32 500 cycles). The kinetic analysis reveals a diffusion controlled faradaic characteristic of Co3S4 (73.21% diffusion-controlled contribution). Moreover, the fabrication process presented in this work is facile, cost-effective, and environmentally benign, offering a feasible solution for fabricating next-generation high-performance energy storage devices.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Yafei Liu,Xuming Du,Yi Li,Enhui Bao,Xianglin Ren,Huiyu Chen,Xiaodong Tian,Chunju Xu
Herein, the MnCo 2 O 4.5 microflowers (MFs) assembled by two-dimensional (2D) porous nanosheets were prepared through an initial solvothermal reaction with a subsequent annealing process. In this architecture, many interconnected 2D thin nanosheets were self-assembled together to form a 3D hierarchical MF with plenty of open channels. Such structure endows these MnCo 2 O 4.5 MFs with large specific surface area of 156.85 m 2 /g for energy storage and provides rich ion diffusion pathways for ion transportation, thus the as-prepared MFs can exhibit good overall electrochemical performance in both hybrid supercapacitor (HSC) and lithium-ion battery (LIB). For the utilization in supercapacitor, the MFs deliver a specific capacity of 287.02 C/g at 1 A/g as well as a rate capability with 73.3 % capacity retention at 8 A/g. The energy density of the HSC assembled by MFs and activated carbon can reach up to 30.33 W h kg −1 at 959.35 W kg −1 . When applied as the anode for Li-ion battery, a specific capacity of 1340.8 mA h g −1 at 0.1 A/g and cycling performance with low capacity loss of 0.73 mAh/g per cycle after 200 cycles at 0.5 A/g can be achieved. This work uncovers a repeatable and facile synthetic strategy to prepare transition metal oxides with large specific surface area and good overall electrochemical property.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2022
·
IF 8.907
Tao Cui,Shang Wu,Sheng Zhou,Qiaoliang Feng,Xin Xu,Huanlei Zhao,Qiong Su,Yanbin Wang,Xiangfei Zhao,Quanlu Yang
The core-shell structure is always a greatly effective structure in asymmetric hybrid supercapacitor , duo to a high specific surface area and porosity that can accommodate partial expansion during the redox reaction. Herein, a cobalt-glycerolate@nickel hydroxidenitrate microsphere (CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 ) with core-shell structure is prepared by a simple two-step hydrothermal method . The as-produced CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 possesses extremely high specific capacity (265.9 mA h g −1 at 1 A g −1 ) and an excellent rate capability (with 75.5% of initial capacity at 10 A g −1 ). In addition, as an cathode material, flower-sphere-like Bi-Bi 2 Se 3 materials is selected to match a new CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 //Bi-Bi 2 Se 3 asymmetric supercapacitor. It exhibits a specific capacity (125.1 mA h g −1 at 1 A g −1 ) and an impressive rate property (with 77.6% of initial capacity at 10 A g −1 ). Satisfactorily, the asymmetric supercapacitor device, which cleverly assembles by the above two electrode materials, achieves impressive specific energy of 54 Wh kg −1 at 760 W kg −1 , and a capacitance retention rate of 80% after 4000 cycles. The excellent performance of the asymmetric supercapacitor proves that the materials possess great potential in the energy storage field.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2021
·
IF 4.126
Shuzhen Cui,Faqiang Wang,Kanjun Sun,Xin Wang,Qinzheng Hu,Hui Peng,Guofu Ma,Ziqiang Lei
Doping metal ions into metal compounds is an effective strategy to improve ionic and electronic conductivity and electrochemical properties of metal compounds. Herein, we demonstrate the design and fabrication of novel Ce-doped NiMoO4 nanosheets by a simple hydrothermal method without adding any surfactants and templates toward achieving high-specific energy aqueous hybrid supercapacitors. The doping of Ce ions into the sheet structure of the NiMoO4 material can expand the tunnel structure of the crystal and enhance the electronic conductivity of the nanomaterials, thus providing the electrode material with a large ion storage space and easy ion diffusion channels. The Ce-doped NiMoO4 nanosheet shows a high specific capacity of 107 mA h g–1 at 1 A g–1, which is higher than that of the bare NiMoO4 nanosheet. In addition, a novel hybrid supercapacitor (HSC) is fabricated by using Ce-doped NiMoO4 nanosheets as the positive electrode and Fe3O4@Bi2O3 nanoarrays as the negative electrode, with aqueous KOH as the electrolyte. The Ce-doped NiMoO4//Fe3O4@Bi2O3 HSC has a high output voltage (1.65 V) and a high energy density of 32.8 W h kg–1 at a power density of 415 W kg–1 as well as good electrochemical stability. The results show that Ce-doped NiMoO4 nanosheets can be used as an advanced electrode for supercapacitors.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
Advanced Sustainable Systems
·
2022
·Vol. 7
·期 3
·2200412
·
IF 6.737
Fangfang Shi,Qifan Liu,Chao Yang,Jianhui Qiu,Limin Zang
Enabling green manufacturing processes for energy storage devices is a significant aspect of achieving sustainable development. Herein, peach gum (PG) which is a kind of natural, renewable, and abundant biomass, is chosen to fabricate zinc-ion hybrid supercapacitors (ZHSCs). PG is used as the carbon source to prepare porous carbon materials by simultaneous carbonization and activation process. The effects of potassium hydroxide concentration and carbonization temperature on the as-prepared carbon materials are investigated. The porous carbon prepared under the optimal conditions has a large specific surface area of 1587 m 2 g −1 , and the ZHSC constructed by this porous carbon and Zn foil exhibits a high specific capacity of 338.3 mAh g −1 at 0.2 A g −1 in 2 m ZnSO 4 . Furthermore, PG is used to prepare PG/ZnSO 4 gel electrolyte to assemble the quasisolid-state ZHSC, and the maximum specific capacity, energy density, and power density of the device can reach 169.2 mAh g −1 , 152.3 Wh kg −1 , and 9000 W kg −1 , respectively. Besides, the device also exhibits good cycling stability with a capacity retention of 90.1% after 15 000 cycles. This strategy provides a simple and effective way for the application of PG to fabricate green energy storage devices with high performance.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Qiang Wang,Hao Ding,Chengxiang Hu,Siliang Wang,Liangpan Yang,Wei Zeng,Yi Xiong,Dong Liang
In order to meet the development needs of wearable electronic products in the future, people have been trying to build multi-functional flexible pressure sensing devices. However, it is still challenging to design a wearable one-body pressure sensing system that is cost-effective, safe, environmentally friendly and self-powered. Herein, a novel wearable self-powered quasi-solid-state (QSS) zinc ion hybrid supercapacitor (ZIHSC) typed pressure sensor (PS) was designed with the capacitor-type Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) cathode, ZnSO 4 -polyacrylamide-hydrogel electrolyte and graphite paper@zinc anode. The aqueous ZIHSC shows remarkable electrochemical performance with high capacitance of 165.2 mF cm −2 , high energy density of 66.3 μWh cm −2 , high power density of 1785 μW cm −2 and long lifespan of 99.3% capacitance retention after 10,000 cycles. More encouragingly, the ZIHSC typed PS exhibits two functions of energy storage and sensing. On the one hand, it shows the electrochemical performance comparable to that of aqueous ZIHSC. On the other hand, it displays excellent pressure sensing performance with wide pressure detection range (1–110 kPa) and short response time (＜300 ms). This work not only confirms that the PEDOT:PSS is a promising capacitor-type material for ZIHSC, but also provides a reference for the development of new-generation wearable multifunctional electronic devices.
研究领域:
材料科学
·
能源存储
·
传感器技术
·
可穿戴设备
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Yang-Yang Xie,Hui-Jun Chen,Qi-Yao Bai,Xiu-Li Wang,Gang Wu,Si-Chong Chen,Yu-Zhong Wang
Although NiO has attracted intensive attention as promising active materials for hybrid supercapacitor (HSC) and HER/OER electrocatalysts, efficiently utilizing the NiO-based electrodes with high mass loading is still a challenge. Herein, we design a battery-type electrode, i.e., NiO nanofibers clad nickel foam (NiO/NF), by facile, low-cost, and eco-friendly etching and oxidation under ambient conditions. Thanks to the in-situ growth of NiO nanofibers on NF and its ultrahigh mass loading of 17.4 mg cm −2 , the binder-free NiO/NF electrode shows excellent performance in HSC and overall water-splitting. An ultrahigh areal capacity ( C A ) of 3.84 mAh cm −2 (gravimetric capacity of 220.7 mAh g −1 ) is obtained at 2 mA cm −2 , which is 1255 times more than pristine NF (0.00306 mAh cm −2 ). Even at 100 mA cm −2 , C A can reach 1.38 mAh cm −2 . Hybrid supercapacitor assembling with graphene oxide (GO) delivers a peak energy density of 2572.2 Wh m −3 and possesses good cycling stability of 110% retention after 6000 cycles. Moreover, NiO/NF electrode displays low overpotentials of 69.9 mV and 262 mV at 10 mA cm −2 for HER and OER, respectively. NiO/NF||NiO/NF electrolyzer outputs 10 mA cm −2 at only 1.57 V with long-term durability for 50 h.
研究领域:
材料科学
·
电化学能源
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）