JOURNAL OF ALLOYS AND COMPOUNDS
·
2019
·
IF 4.175
Yingyuan Zhao,Jing Guo,Anmin Liu,Tingli Ma
2D materials and their composites are promising energy storage candidates. In this work, 2D horizontal heterostructure comprised of Ni 3 S 2 /delaminated-Ti 3 C 2 , denoted as Ni 3 S 2 /d-Ti 3 C 2 , supported on Ni foam is prepared by a two-step method and used as binder free electrode for hybrid supercapacitor . The as-obtained composites are characterized by X-ray diffraction analysis, scanning electron microscope, transmission electron microscope and X-ray photoelectron spectroscopy. The electrochemical properties of Ni 3 S 2 /d-Ti 3 C 2 on Ni foam (denoted as Ni 3 S 2 /d-Ti 3 C 2 /NF) are studied using cyclic voltammetry , galvanostatic charge-discharge analysis and electrochemical impedance spectroscopy . It is found that the Ni 3 S 2 /d-Ti 3 C 2 /NF electrode exhibits superior capacitive performance with specific capacity of 2204 F g −1 at a constant current density of 1 A g −1 . A hybrid supercapacitor is fabricated by using Ni 3 S 2 /d-Ti 3 C 2 /NF electrode as positive electrode, active carbon (AC) coated on Ni foam as negative electrode and KOH aqueous solution as electrolyte. The Ni 3 S 2 /d-Ti 3 C 2 /NF//AC hybrid supercapacitor exhibits a maximum energy density of 23.6 W h kg −1 and a maximum power density of 4004.4 W kg −1 . The results supply new strategy for constructing MXene-based 2D horizontal heterostructure, and suggest that Ni 3 S 2 /d-Ti 3 C 2 /NF composite as a binder free electrode is an ideal candidate for supercapacitor applications.
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DOI
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 21
·12134-12145
·
IF 3.049
Wenyi Wu,Fengjuan Miao,Bairui Tao,Yu Zang,Lei Zhu,Cuiping Shi,Paul K. Chu
A self-powered nonenzymatic glucose sensor electrode boasts the advantages of both a glucose sensor and fuel cell. Herein, an electrode composed of ZnO–graphene hybrid materials on nickel foam (NF) is prepared by electrodeposition of Pd NPs. The electrode is characterized systematically and the dependence of electrocatalytic oxidation of glucose on the concentrations of KOH and glucose, temperature, and potential limit in the anodic direction is investigated. The Pd/NF-ZnO–G electrode shows high catalytic activity, sensitivity, stability, and selectivity in glucose detection, as exemplified by an electrocatalytic glucose oxidation current of 222.2 mA cm−2 under alkaline conditions, high linearity in the glucose concentration range from 5 μM to 6 mM (R2 = 0.98), and high sensitivity of 129.44 μA mM−1−1 cm−2. The Pd/NF-ZnO–G electrode which exhibits superior electrocatalytic activity under alkaline conditions has large potential in nonenzymatic glucose sensing and direct glucose fuel cells and is suitable for miniaturized self-powered nonenzymatic glucose sensing.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Yumeng Lian,Yi Wang,Dun Zhang,Likun Xu
Developing a stable and reusable material for antibacterial application in an enzyme-like system is still a challenge. Herein, Mn–Co–S–Se (MnCo 2 S x Se 4–x )/Ni foam (NF) are synthesized by introducing S 2– and Se 2– in MnCo 2 O 4 /NF with a facile hydrothermal approach. With the different molar ratios of S/Se, the surface morphology of MnCo 2 S x Se 4–x /NF shows different growth and the catalytic activity also presents regular changes. MnCo 2 S 3.1 Se 0.9 /NF possesses a high enzyme-like ability with higher V max than natural horseradish peroxidase . Due to the outstanding peroxidase-like activity, MnCo 2 S 3.1 Se 0.9 /NF also exhibits broad-spectrum bactericidal performance towards Escherichia coli and Staphylococcus aureus which stems from the formation of ·O 2 – from H 2 O 2 . In the reutilization experiment, the enzyme-like activity keeps a stable value after 25 cyclic tests and the bactericidal performance is still stable after 10 cyclic tests, proving that MnCo 2 S 3.1 Se 0.9 /NF possesses relative stability and reusability. This research showed the great prospect of new energy and environmental catalysis.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Long Chen,Gen Chen,Zuxin Wen,Dan Wu,Zuoyu Qin,Ning Zhang,Xiaohe Liu,Renzhi Ma
Undesirable dendrite growth and infinite volume expansion are the major barriers to the potential application for next-generation safe Li metal batteries. To solve these problems, we herein report electroplating CuO nanoneedle arrays on Ni foam (NCNF) as 3D porous framework for Li metal batteries. The influence of different morphologies of CuO on guiding Li plating/stripping behavior has been investigated. The homogenous deposition of Li can be attributed to the interspace between the CuO nanoneedles, which is remarkably superior over granular CuO on Ni foam (GCNF) at high areal capacity. The hierarchical skeleton can not only decrease local current inhomogeneity but also alleviate the volume change of Li. The NCNF electrode delivers a higher Coulombic efficiency of Li deposition comparing with the bare Ni foam and GCNF. Furthermore, enhanced cycling stability with small overpotential can be achieved in symmetric cells. In a Li/LiFePO 4 full cell, the excellent cycling performance also proves the superiority of NCNF@Li composite electrode.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Na Ren,Hongfang Jiu,LiYa Jiang,Qing Zhang,Shaokang Yu,Yuying Gao,Zhonghao Gao,Lixin Zhang
Hierarchical porous ZnMn 2 O 4 rugby-balls on Ni foam were first synthesized via a hydrothermal method and then an annealing process . The ZnMn 2 O 4 rugby-balls were composed of interconnected nanosheets of about 25 nm. The growth mechanism is also proposed. In addition, the unique structure of hierarchical porous ZnMn 2 O 4 rugby-balls on Ni foam exhibited superior electrochemical performances including high specific capacity, long cyclic stability and good rate capability. At a constant current density of 100 mA g −1 , the initial discharge and charge capacities were 1584 mAh g −1 and 1114 mAh g −1 respectively, after 100 cycles, the reversible capacity could remain 614 mAh g −1 . These results demonstrate great potential of hierarchical porous ZnMn 2 O 4 rugby-balls on Ni foam in advanced LIBs . Furthermore, this method may provide a novel route for the synthesis of a series of hierarchical porous ternary spinel oxides rugby-balls.
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高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Qiuxiang Liu,Jinhui Fang,Sulin Ni,Shasha Tang,Zhiqiao He
A hybrid electrode comprised of Pd and Co 3 O 4 supported on Ni foam (Pd-Co 3 O 4 /Ni foam) was applied toward the dechlorination of 2,4-dichlorophenoxyacetic acid (2,4-D). The effects of the reaction condition, such as Co 3 O 4 and Pd loading, current density, initial concentration of 2,4-D, temperature and dissolved anions, on the electrochemical dechlorination process were investigated and interpreted based on an indirect reduction mechanism via active atomic H*. The optimal Pd and Co 3 O 4 loading were determined to be 0.47 and 0.51 mg/cm 2 , respectively. A highest current efficiency of 12.10% was obtained at a current density of 1.50 mA/cm 2 , an initial 2,4-D concentration of 50 mg/L and reaction temperature of 298 K, and the apparent activation energy of 2,4-D dechlorination by the Pd-Co 3 O 4 /Ni foam electrode was calculated to be 42.33 × 10 3 J/mol. In addition, dissolved anions such as S 2- , SO 3 2- and NO 3 - suppress the catalytic activity, whereas HCO 3 - and Cl - have a negligible effect on the reaction process. The Pd-Co 3 O 4 /Ni foam electrode can also be applied to the dechlorination of 2,4-D in natural water bodies as well as other chlorinated organic compounds, such as chlorophenols.
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DOI
高影响因子
CRYSTENGCOMM
·
2026
·
IF 2.4
Qi Chen,Hongwei Duan,Yan Song,Yaning Guo,Hongge Zhang,Feng Zhang,Xiaobin Hu,Yinfeng Han
The rational design of hierarchical Co-Ni-Fe-based inorganic materials is of great significance for functional electrochemical applications. Here, a self-supported Co2(OH)2CO3@CoFe-LDH hierarchical heterostructure was constructed in-situ on a conductive nickel foam substrate via a one-step hydrothermal method. A prominent structural feature is that Co2(OH)2CO3 nanoneedles are uniformly and radially anchored on the surfaces of CoFe-LDH nanosheets, which effectively suppresses nanoneedle aggregation. By systematically tuning the Co2+/Fe3+ molar ratio, the effects of composition on phase selectivity, nucleation behavior, and morphological evolution in the multimetallic system were elucidated. The results reveal that CoFe-LDH nanosheets preferentially form at moderate Co2+/Fe3+ ratios, whereas further increasing the Co2+ content leads to heterogeneous nucleation of excess Co2+ species on the LDH surface and induces the directional growth of Co2(OH)2CO3, thereby giving rise to the hierarchical heterostructure. The resulting self-supported electrode exhibits stable oxygen evolution reaction performance under alkaline conditions. In situ Raman spectroscopy reveals a potential-dependent surface reconstruction, evidenced by the attenuation of precursor-related metal-oxygen vibrations and the formation of (oxy)hydroxide species at the heterointerfaces, highlighting the correlation between multimetallic composition regulation and interfacial structural evolution.
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高影响因子
Catalysts
·
2023
·Vol. 13
·期 2
·329
·
IF 3.9
Xueqing Ren,Peng Xu,Ke Tian,Menghan Cao,Fengyin Shi,Guangshan Zhang
The post-separation of powder catalysts restricts the practical application of peroxymonosulfate (PMS)-based advanced oxidation technology. Hence, we fabricated CuO-Fe2O3-modified Ni foam (CFO-NF) using a facile hydrothermal method for an efficient PMS activation. The CFO-NF/PMS system could achieve a 97.9% tetracycline hydrochloride (TC) removal efficiency in 60 min with four pieces of CFO-NF and 0.4 mmol L−1of PMS. The removal efficiency was maintained at ˃85% even after five cycles, indicating the excellent stability of CFO-NF composites. The conversion among Fe(III)/Fe(II), Cu(II)/Cu(I), and Ni(III)/Ni(II) accelerated the PMS decomposition, verifying the synergy between CuO-Fe2O3and Ni foam. The trapping experiments and EPR detection confirmed that abundant active species (•OH, SO4•−, O2•−, and1O2) were produced in the CFO-NF/PMS system, accounting for the existence of radical pathways and a non-radical pathway, in which1O2(non-radical pathway) was dominated. This study developed a novel CuO-Fe2O3-modified Ni foam with a superior PMS activation performance, a high stability, and a recoverability for eliminating refractory organic pollutants.Keywords:CuO-Fe2O3-modified Ni foam;peroxymonosulfate;tetracycline;stability;singlet oxygen
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DOI
高影响因子
Nanomaterials
·
2023
·Vol. 13
·期 3
·493
·
IF 5.3
Meng Shao,Jun Li,Jing Li,Yanan Yan,Ruoliu Li
Honeycomb-like Ni(OH)2/Ni3S2/Ni foam (NF) was fabricated via a two-step hydrothermal process and subsequent alkalization. Ni3S2with a honeycombed structure was in-situ synthesized on the NF surface by a hydrothermal process. MOF-derived Ni(OH)2nanosheets were then successfully grown on the Ni3S2/NF surface by a second hydrothermal process and alkaline treatment, and a large number of nanosheets were interconnected to form a typical honeycomb-like structure with a large specific surface area and porosity. As a binder-free electrode, the prepared honeycomb-like Ni(OH)2/Ni3S2/NF exhibited a high specific capacitance (2207 F·g−1at 1 A·g−1, 1929.7 F·g−1at 5 mV·s−1) and a remarkable rate capability and cycling stability, with 62.3% of the initial value (1 A·g−1) retained at 10 A·g−1and 90.4% of the initial value (first circle at 50 mV·s−1) retained after 5000 cycles. A hybrid supercapacitor (HSC) was assembled with Ni(OH)2/Ni3S2/NF as the positive electrode and activated carbon (AC) as the negative electrode and exhibited an outstanding energy density of 24.5 Wh·kg−1at the power density of 375 W·kg−1. These encouraging results render the electrode a potential candidate for energy storage.Keywords:Ni(OH)2/Ni3S2/NF;honeycomb-like structure;two-step hydrothermal;alkalization;MOF-derived Ni(OH)2;supercapacitor
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yuanwu Liu,Huai Zhang,Weiming Song,Ying Zhang,Zhipeng Hou,Guofu Zhou,Zhang Zhang,Junming Liu
Improving water adsorption and hydrogen (H) atoms desorption capacities are critical issues for the hydrogen evolution reaction (HER) in alkaline media. Herein, a ReS 2 /NiS heterostructure was generated in situ on the surface of the nickel foam (NF) using a facile hydrothermal process. The combination of experimental and density functional theory (DFT) analyses revealed a charge transfer from NiS to ReS 2 , which directly promoted water adsorption on Ni sites in NiS as well as H desorption on S sites in ReS 2 . Moreover, the antioxidation capacity of the heterointerface in the catalyst improved. Therefore, the formed ReS 2 /NiS@NF delivered an excellent HER activity very close to that of commercial Pt/C at low current density with overpotential of 78 mV at 10 mA/cm 2 while remarkably outperforming Pt/C at high current densities. The ReS 2 /NiS@NF also exhibited remarkable stability at 150 mA/cm 2 . This work provides a strategy for designing excellent electrocatalysts based on NiS.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Wei Liu,Wenyu Tan,Yang Yang,Hanwei He
Efficient, stable, and environmentally friendly electrocatalysts urgently need to be explored for hydrogen evolution reaction (HER). A novel and facile nickel–selenium–dysprosium (Ni–Se–Dy) electrocatalyst was synthesized on Ni foam via simple and feasible one–step galvanostatic electrodeposition . The prepared Ni–Se–Dy electrodes showed excellent HER activity in alkaline medium with low overpotential values of 72 and 173 mV to deliver the current density values of 10 and 50 mA·cm −2 . Tafel slope value (119.72 mV·dec −1 ) for Ni–Se–Dy electrode in 1.0 M KOH indicated that the Ni–Se–Dy catalyst followed a Volmer–Heyrovsky mechanism, and the rate–determining step of this reaction was a Volmer step. Electrochemical test and scanning electron microscopy results showed that the excellent HER performance of Ni–Se–Dy electrode can be attributed to surface morphology , better intrinsic activity, and high conductivity.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Shuochao You,Yihui Wu,Yuxin Wang,Zhen He,Li Yin,Yuan Zhang,Zesheng Sun,Zejie Zhang
The development of extremely active bifunctional non-noble electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is pivotal for water splitting but remains challenging. Herein, self-supported Ni–Fe–Sn electrocatalysts were fabricated on nickel foam (NF) through a simple and facile pulse electrodeposition process. Under optimal conditions, the prepared Ni–Fe–Sn electrocatalysts exhibited excellent bifunctional properties in alkaline medium and required ultralow overpotentials of only 27 and 201 mV for HER and OER, respectively, to reach the current density of 10 mA cm −2 . Importantly, the same Ni–Fe–Sn electrocatalyst can be assembled as the anode and the cathode in a two-electrode system. It demanded a fairly low applied voltage of 1.55, 1.72, and 1.87 V to produce 10, 50, and 100 mA cm −2 , respectively, and exhibited excellent long-term stability. The excellent electrocatalytic water splitting performance of the Ni–Fe–Sn film was mainly associated with its intrinsic catalytic activity derived from the modulation of the electronic structures among Ni, Fe, and Sn by using the appropriate atomic ratio of Ni: Fe: Sn.
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高影响因子
危险品化学品经营许可证（带存储）