COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Ran Bi,Xiaoyan Ma,Pengcheng Ma,Qianqian Wang
Non-invasive detection of body fluid glucose concentration is of great significance in the diagnosis and treatment of diabetes, which poses a new challenge to the reduction of the detection limit of glucose sensors. In this work, a novel non-enzymatic glucose sensor (defect-rich cypress-leaf-like Cu 2+1 O@NiF) was proposed by rapid electrodeposition of cypress-leaf-like Cu 2+1 O on the surface of nickel foam (NiF) substrate. Due to the high electrochemical active surface area and abundant defects of cypress-leaf-like Cu 2+1 O providing more catalytic active sites, the prepared non-enzymatic sensor has an ultra-low detection limit (0.9 nM), high sensitivity (88,419.4 μA∙mM −1 ∙cm −2 (1 nM-0.5 μM) and 2095.5 μA∙mM −1 ∙cm −2 (1 μM-4.33 mM)) and wide linear range (1 nM-4.33 mM) with good selectivity, reproducibility and stability. Furthermore, the obtained sensors exhibited high detection stability, accuracy and recovery for glucose detection of human body fluid samples, which means that the defect-rich cypress-leaf-like Cu 2+1 O@NiF electrode is an ideal candidate for non-invasive glucose sensors.
研究领域:
生物医学工程
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2017
·Vol. 29
·期 6
·4649-4657
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IF 2.019
Jiang Si,Wu Jihuai,Ye Beirong,Fan Yueyue,Ge Jinhua,Guo Qiyao,Huang Miaoliang
We present a facile one-step hydrothermal method to in situ grow nickel selenide (Ni 3 Se 2 ) nanosheets on nickel (Ni) foam (Ni 3 Se 2 /Ni) by using SeO 2 as selenide source, Ni foam as nickel source and NaBH 4 as reducing agent. The mole ratio of NaBH 4 /SeO 2 is optimized as 4:1. An asymmetric supercapacitor (ASC) is fabricated by using as synthesized Ni 3 Se 2 /Ni as positive electrode and activated carbon (AC) as negative electrode. The synthesized materials and assembled devices are measured and characterized by a field emission scanning electron microscopy, powder X-ray diffraction, cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. The results shows that the as-synthesized Ni 3 Se 2 /Ni electrode possesses a high specific capacitance of 854 F g −1 at 1 A g −1 . The ASC can steadily operate with a high voltage of 1.6 V in 3 M KOH electrolytes, and possesses a superior energy density of 23.3 W h kg −1 at a power density of 398.1 W kg −1 . In addition, the Ni 3 Se 2 //AC ASC shows excellent charge/discharge stability, after 5000 cycles the capacitance retention reaches 91.11%. The excellent performance of Ni 3 Se 2 /Ni electrode is mainly due to the pseudo-capacitive by Ni 3 Se 2 and the 3D structure of Ni foam.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
MOLECULES
·
2021
·Vol. 26
·期 15
·4517
·
IF 4.412
Ye Tian,Qi Wang,Zhijian Peng,Shundong Guan,Xiuli Fu
A novel product consisting of a homogeneous tin oxide nanowall array with abundant oxygen deficiencies and partial Ni-Sn alloying onto a Ni foam substrate was successfully prepared using a facile solvothermal synthesis process with subsequent thermal treatment in a reductive atmosphere. Such a product could be directly used as integrated anodes for supercapacitors, which showed outstanding electrochemical properties with a maximum specific capacitance of 31.50 mAh·g−1at 0.1 A·g−1, as well as good cycling performance, with a 1.35-fold increase in capacitance after 10,000 cycles. An asymmetric supercapacitor composed of the obtained product as the anode and activated carbon as the cathode was shown to achieve a high potential window of 1.4 V. The excellent electrochemical performance of the obtained product is mainly ascribed to the hierarchical structure provided by the integrated, vertically grown nanowall array on 3D Ni foam, the existence of oxygen deficiency and the formation of Ni-Sn alloys in the nanostructures. This work provides a general strategy for preparing other high-performance metal oxide electrodes for electrochemical applications.Keywords:integrated anode;supercapacitor;nanowall array;oxygen-deficient tin oxide;Ni-Sn alloys
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
FUEL
·
2023
·
IF 7.4
Shuang Xue,Tian Lan,Guofeng Zhao,Qiang Nie,Chao Meng,Xinyi Xu,Yong Lu
Water gas shift reaction (WGSR) is urgently calling for an alternative to the Fe-Cr catalyst. Ni-based catalysts are taken into consideration but remain challenging because of their high methanation activity. Here we report a highly active and selective NiC x /Ni-foam catalyst with clearly detectable Ni 3 C phase, facilely obtainable by endogenous growth of NiC 2 O 4 onto a Ni-foam and subsequent H 2 -reduction treatment. The preferred catalyst with high content of NiC x is capable of converting 63.6% or 94.3% CO at 350 °C or 400 °C with trace or < 0.8% CH 4 formation for a feed gas with H 2 O/CO/Ar molar ratio of 4/1/9, and is stable for at least 110 h. It is experimentally and theoretically unveiled that the Ni 3 C facilitates the dissociative activation of H 2 O and favors CO to form carboxylate species (favorable for CO 2 formation) rather than active Ni(CO) n intermediates for CH 4 formation thereby enabling the catalyst with high WGSR activity and selectivity.
研究领域:
化学工程
·
催化材料科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 99
·81474-81481
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IF 3.84
Chao Gong,Miaoliang Huang,Jinfang Zhang,Min Lai,Leqing Fan,Jianming Lin,Jihuai Wu
Ni0.85Se was in situ grown on Ni foam via a facile hydrothermal process as a high-performance electrode for supercapacitors. The as-obtained Ni0.85Se electrode exhibited excellent electrochemical properties with a higher specific capacitance of 1115 F g−1 (1.34 F cm−2) and remarkable cycling stability (91.7% of the initial capacitance value remained after 1000 cycles). An asymmetric supercapacitor was fabricated successfully based on Ni0.85Se (positive electrode) and activated carbon (negative electrode). The Ni0.85Se//AC ASC can expand the operating voltage as high as 1.6 V, which led to an ultrahigh energy density of 32.2 Wh kg−1 at a power density of 789.6 W kg−1. Further, the ASC had a highlight cycle performance (only 1.7% of CT loss after 2000 cycles), so it holds promise as a potential candidate for energy storage devices.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
AICHE JOURNAL
·
2025
·
IF 4
Hong-Da Zhang,Wei-Yao Yang,Miao Pang,Ya-Qiao Tian,Shi-Chao Su,Zhi-Ping Zhao,Le Sang
Non-modified Pd/PDA/Ni foam, hydrophobic modified F 9 -Pd/PDA/Ni foam, and F 17 -Pd/PDA/Ni foam catalysts are successfully prepared and used for NB hydrogenation in micropacked bed reactors (μPBRs). The catalytic performance increases with the addition of water in the water–methanol mixed solvent. In the mixed solvent with 50 v/v% water, F 17 -Pd/PDA/Ni foam can almost completely convert nitrobenzene (NB) with a yield of 95.9% at a mild 45°C. As the solvent contact angle of catalysts increases (87.5–141.5°), the enhancement ratios of NB conversion and AN yield are 28.9%–92.4% and 31.4%–106.5%, respectively. The space–time yield of AN in μPBRs reaches 1.873 kg·L −1 ·h −1 ·g −1 , which is 1–2 orders of magnitude higher than that of conventional reactors. The kinetic model of NB hydrogenation is established at the water–methanol system in μPBRs. The hydrophobicity of catalysts significantly improves the reaction rate of NB hydrogenation, and the reaction rate constant is increased by 69.9%.
研究领域:
化学工程
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催化科学
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2021
·Vol. 32
·期 37
·375710
·
IF 3.874
Yaoguo Shen,Lin Wu,Yingwu Zhou,Hong Lin,Cheng Zhang,Hualiang Yu,Jun Wang,Lei Yu
Two-dimensional (2D) materials have attracted extensive attention owing to their unique electronic/physiochemical properties, and wide application potential in energy storage and conversion. However, 2D materials are often tendency to aggregate due to the strong van der Waals interactions, leading to gradually decrease of an efficient mass transfer pathway and accessible surface area for the electrolyte. Here, we demonstrate an efficient approach for large-scale production of a hybrid nanostructures (Ti3C2Tx/rGO) based on ultrathin MXene nanosheets anchored on layered reduced graphene (rGO) supported by porous Ni-foam via a plain chemical dipping method followed by high temperature annealing process. Ti3C2Tx/rGO electrode exhibits a porous structure, excellent ionic and electrical conductivities, and remarkable specific capacitance. Furthermore, it shows ultra-high cycle stability, for example, 88.70% of its specific capacity can be maintained through 3000 cycles. This kind of porous nanostructure and integrated design idea is significant to design other energy storage modules.
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
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Hui Hua Peng,Liang Zhang,De Yi Jiang,Jie Chen
Rhombohedral MnCO 3 nanoparticles were successfully grown on nickel foam via a facile and one-pot water-bath means, wherein the hydrolyzation of urea supplied alkali and carbonate ions. The structure and morphology of the nanocomposites were investigated by XRD, FIB/SEM and elemental mapping. Microscopic investigations revealed MnCO 3 particles with mean sizes that varied from 110-255 nm. EDS mapping showed a homogeneous distribution of manganese, carbon and oxygen. The electrochemical properties of the produced composites were estimated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) measurements using 6 M KOH as the electrolyte. The resulting electrodes displayed maximum specific capacitance (163.7 F g -1 at 0.5 A g -1 ), respectable rate capability, and excellent long-term cycling life (91% retention after 1000 cycles). In addition, this manuscript offers us a simple and rapid strategy for the fabrication of electrode materials for use as energy storage devices.
研究领域:
材料科学
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电化学
·
纳米科技
·
能源存储
·
功能材料
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Zhuo Chen,Zhiyang Lu,Weijun Tian,Bingkun Liu,Bingjie Huo,Jing Zhao,Mengyuan Zou,Ruijuan Zhang,Xinran Yu,Xinbo Wang
Pyrene (Pyr) and its derivatives are classified as Persistent Organic Pollutants (POPs), which exhibit significant toxicological effects and pose serious threats to ecosystems. Photocatalytic technology is increasingly employed for the remediation of POPs due to its effective and environmentally sustainable degradation capabilities. However, conventional photocatalytic materials, primarily in powder form, face challenges related to separation and recovery from aqueous environments, significantly limiting their practical application. In this study, we successfully synthesized a three-dimensional (3D) porous immobilized photocatalytic material by decorating Ag 3 PO 4 and BiOBr onto Ni foam (NF) using a hydrothermal method combined with continuous ionic layer adsorption. The results demonstrated Ag 3 PO 4 /BiOBr/NF exceptional light degradation capabilities, achieving over 90 % degradation of Pyr, 1-methylpyrene, and 1-hydroxypyrene, as well as over 40 % degradation of 1-nitropyrene under visible light irradiation over a duration of 5 h. Its degradation efficiency decreased by 12.49 % after five cycles, demonstrating its reusability. The roles of superoxide radicals ( O 2 – ) and holes (h + ) were critical in the degradation process. Furthermore, based on experimental findings, we proposed a Z-type heterojunction degradation mechanism for the Ag 3 PO 4 /BiOBr/NF composite, accompanied by an analysis of the potential degradation pathways for Pyr. Consequently, the recyclable immobilized photocatalytic materials developed in this research contribute novel insights into the photocatalytic degradation of POPs.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 22
·11229-11235
·
IF 8.867
Jiahao Yu,Gongzhen Cheng,Wei Luo
Developing low-cost, highly efficient, and superior stable electrocatalysts for the oxygen evolution reaction (OER) is essential for upcoming renewable and clean energy systems. Here, 3D ternary nickel iron phosphide microflowers with a hierarchically porous morphology directly grown on Ni foam via a successive hydrothermal and phosphidation method are synthesized. Benefitting from their unique 3D hierarchical microflower-like structure and the strong electron interactions between Fe, Ni and P, the as-synthesized (NixFe1−x)2P catalysts can effectively catalyze the OER with an overpotential of 219 mV at a current density of 20 mA cm−2 in alkaline media, which is, to the best of our knowledge, the best among the reported non-noble metal-based catalysts.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Zimo Lou,Jiasheng Zhou,Mei Sun,Jiang Xu,Kunlun Yang,Dan Lv,Yaping Zhao,Xinhua Xu
A Pd/MnO 2 /Ni foam electrode with hierarchical structure was synthesized via electrodeposition for efficient electrocatalytic hydrodechlorination. Compared with the ordinary Pd/Ni foam electrode, the introduction of MnO 2 greatly enhanced the catalytic reactivity and reduced the dose of precious metal Pd. Only a quarter of Pd was required for the Pd/MnO 2 /Ni foam compared to the Pd/Ni electrode to achieve complete dechlorination of 2,4-dichlorobenzoic acid (2,4-DCBA) within 120 min. Various characterizations suggested that MnO 2 covered the surface of the Ni foam and increased the specific surface area of the electrode, while Pd nanoparticles were subsequently deposited on MnO 2 . The atomic H ∗ -based indirect dechlorination was the dominant pathway while only approximately 13% of 2,4-DCBA was removed by direct electron transfer. Atomic H ∗ adsorbed on Pd acted as the key active species for the dechlorination of 2,4-DCBA by the Pd/MnO 2 /Ni foam electrode in this study. The introduction of MnO 2 would promote the water dissociation and the hydrogen evolution reaction, and provide Pd with more atomic H ∗ . Pd/MnO 2 /Ni foam exhibited good stability and reusability according to the XPS spectra and consecutive electrocatalytic experiments, which suggested its long-term potential for efficient removal of chlorinated contaminants. This work demonstrated a new strategy to design efficient electrocatalysts with less precious metal.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Yuejia Liu,Wenqiang Zhao,Xianliang Li,Jiaqiang Liu,Yide Han,Junbiao Wu,Xia Zhang,Yan Xu
Hierarchical α-Fe 2 O 3 microcubes supported on Ni foam (NF) have been successfully prepared using Fe-MOF as a precursor combined with a hydrolysis process, which can be used as the electrodes directly for effective non-enzymatic glucose sensing. The structures and compositions of the as-prepared α-Fe 2 O 3 /NF electrode materials were carefully characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS), respectively. The α-Fe 2 O 3 /NF electrodes exhibit excellent glucose oxidation performance with a response time < 3 s and a sensitivity of 10,356 μA mM −1 cm −2 . Additionally, the material shows good anti-interference sensing performance and stability for glucose detection in the presence of ascorbic acid (AA), dopamine (DA), cysteine (Cys), uric acid (UA), NaCl and other interferences. It is believed that α-Fe 2 O 3 /NF composite can act as a promising electrode material for non-enzymatic glucose sensing applications, and the materials design strategy can be also expanded for other functional systems.
研究领域:
材料科学
·
电化学
·
生物传感
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）