COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Qiong Wu,Jingfan Yan,Fumin Chu,Yanpeng Huang,Yuming Xu,Siyu Jia,Sen Yang
Simple wet chemical method was used to prepare Cu(OH) 2 nanowire-coated copper mesh (denoted as Cu(OH) 2 -CM). Following modification with phytic acid (PA) and polyethyleneimine (PEI), superhydrophilic/underwater superoleophobic copper mesh (denoted as Cu(OH) 2 /PA/PEI-CM) with excellent mechanical and chemical stability was obtained. The Cu(OH) 2 /PA/PEI-CM exhibited efficient separation for various oil/water mixtures. Importantly, Cu(OH) 2 /PA/PEI-CM shows superior anti-crude oil fouling properties. A 280-cycle test (with only four cleanings) using a 2 cm 2 Cu(OH) 2 /PA/PEI demonstrates a large separation capacity, long-term stability and self-cleaning performance of the mesh during the treatment of a 11.2 L crude oil/water mixture. These distinct advantages give the Cu(OH) 2 /PA/PEI-CM great potential for practical application in separating oil pollutants from water.
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 24
·16263-16275
·
IF 2.993
Li Jiali,Kong Xianggui,Jiang Meihong,Lei Xiaodong
Up to now, although tremendous effort has been made in exploring Pd-based catalysts for the Suzuki–Miyaura coupling reactions, there is still much room to enhance its catalytic performance by synthesis catalyst with define-designed and tailored structure. Herein, a new kind of Pd-based structured catalyst with hierarchical hollow structure (Pd/Co(OH) 2 /Cu(OH) 2 /copper foam) has been successfully synthesized by three facile steps. As framework, the hierarchical hollow nanoarray structure of Co(OH) 2 /Cu(OH) 2 /copper foam is fabricated by immersion and electrolytic deposition methods. Uniformly dispersed Pd nanoparticles with a narrow size distribution (1.5 ± 0.2 nm) are anchored on the surface of the hierarchical nanotube array through an in situ spontaneous redox reaction between Co(OH) 2 and PdCl 4 2− without any surfactant at room temperature. Compared with other synthesis approaches, it just takes less than 1 h for the whole fabrication process in our strategy, exhibiting very high efficiency. In order to evaluate the catalytic performance of the as-prepared structured catalyst, 16 kinds of reagents were chosen as substrates for Suzuki–Miyaura coupling reaction, exhibiting excellent activity and reusability under mild conditions. We hope this simple and efficient method will open a new strategy to design and prepare structured catalysts.
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 98
·95740-95746
·
IF 3.289
Lili Bie,Xue Luo,Qingqing He,Daiping He,Yan Liu,Ping Jiang
Hierarchical Cu/Cu(OH)2 nanorod arrays grown on commercially available Cu foam (Cu/Cu(OH)2 NRA/CF) was prepared via a three-step strategy involving the wet chemical synthesis of Cu(OH)2 NRA/CF, a chemical reduction reaction for conversion from Cu(OH)2 NRA/CF to Cu NRA/CF, and finally galvanostatic anodization to grow Cu(OH)2 nanoparticles on Cu NRA/CF. Hierarchical Cu/Cu(OH)2 NRA/CF shows high catalytic activity towards glucose oxidation in an alkaline solution and can serve as a promising electrode material for enzyme-free glucose sensing. At an applied potential of +0.5 V, the sensor showed a broad detection range of 0.001–1.0 mM, a high sensitivity of 9.18 mA mM−1 cm−2, and a low detection limit of 0.45 μM (S/N = 3). Furthermore, the sensor exhibits excellent selectivity against common interferents and good reliability for glucose detection in human serum samples.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 24
·14646-14658
·
IF 10.7
Aihua Yan,Tongyang Zhang,Fei Huang,Shijian Lu,Quande Wang,Huaqi Yuan,Ye Gao,Wenxue Zhao,Jixu Zhang,Zigao Su
Exploring visible-light-driven photocatalytic materials for water splitting is of great significance for achieving green and renewable hydrogen fuel. In this work, MoS2/Sv-ZnIn2S4/Cu(OH)2 (MS/Sv-ZIS/COH) dual-junction composites for hydrogen generation were constructed by an in situ structure-tailored technique. Based on the in situ decomposition of Cu3Mo2O9 (CMO), the instantaneous formation of the sulfur vacancy (Sv), Ohmic-type MS/Sv-ZIS heterojunction and Schottky-type Sv-ZIS/COH heterojunction not only markedly boosted the carrier separation and quickly expedited the charge transfer, but also efficiently inhibited charge recombination and significantly accelerated the hydrogen reduction dynamics. As a result, such composites exhibited an optimum hydrogen production rate of 11.5 mmol h−1 g−1, which was approximately 4.6 times higher than that of pristine ZIS. This work provides an in situ design method to construct new photocatalytic materials for accelerating the redox dynamics and enhancing the water splitting performance.
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Guangxin Ren,Baocang Liu,Liang Liu,Minghao Hu,Junpeng Zhu,Xuan Xu,Peng Jing,Jinfang Wu,Jun Zhang
Biomass is a sustainable and renewable resource that can be converted into valuable chemicals, reducing the demand for fossil energy. 5-Hydroxymethylfurfural (HMF), as an important biomass platform molecule, can be converted to high-value-added 2,5-furandicarboxylic acid (FDCA) via a green and renewable electrocatalytic oxidation route under mild reaction conditions, but efficient electrocatalysts are still lacking. Herein, we rationally fabricate a novel self-supported electrocatalyst of core–shell-structured copper hydroxide nanowires@cerium-doped nickel hydroxide nanosheets composite nanowires on a copper mesh (CuH_NWs@Ce:NiH_NSs/Cu) for electrocatalytically oxidizing HMF to FDCA. The integrated configuration of composite nanowires with rich interstitial spaces between them facilitates fast mass/electron transfer, improved conductivity, and complete exposure of active sites. The doping of Ce ions in nickel hydroxide nanosheets (NiH_NSs) and the coupling of copper hydroxide nanowires (CuH_NWs) regulate the electronic structure of the Ni active sites and optimize the adsorption strength of the active sites to the reactant, meanwhile promoting the generation of strong oxidation agents of Ni3+ species, thereby resulting in improved electrocatalytic activity. Consequently, the optimal CuH_NWs@Ce:NiH_NSs/Cu electrocatalyst is able to achieve a HMF conversion of 98.5% with a FDCA yield of 97.9% and a Faradaic efficiency of 98.0% at a low constant potential of 1.45 V versus reversible hydrogen electrode. Meanwhile, no activity attenuation can be found after 15 successive cycling tests. Such electrocatalytic performance suppresses most of the reported Cu-based and Ni-based electrocatalysts. This work highlights the importance of structure and doping engineering strategies for the rational fabrication of high-performance electrocatalysts for biomass upgrading.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Ze Chai,Chuanhai Jiang
The electrochemical/chemical growth of porous (Ni,Co,Cu)(OH) 2 was reported based on the corrosion behaviors of Ni-Co-Cu films in neutral salt spray . The films prepared by using electrodeposition were ternary solid solution alloys with a simple phase structure, strong texture, nanoscale grains, large microstrain and a large number of crystal defects . The unique microstructures coupled with extensive ion diffusion during the subsequent corrosion process facilitated the formation of ternary hydroxides with uniform and porous nanostructures . The ternary hydroxides composed of Ni-/Co-dominant hydrotalcite-like and Cu-dominant orthorhombic (Ni,Co,Cu)(OH) 2 could be efficiently prepared by motivating the transformation from oxide to hydroxide. The binder-free (Ni,Co,Cu)(OH) 2 electrode exhibited a high specific capacitance of 1738 F g −1 at a current density of 20 A g −1 and decent cycling stability. The electrochemical/chemical growth mode, uniform porous nanostructures and nature of the ternary hydroxides could account for the superior electrochemical performances. This work proposed a simple and green approach to prepare multicomponent hydroxides as novel electrode materials for rechargeable batteries and hybrid supercapacitors .
✓ 已验证
DOI
高影响因子
Energy & Environmental Science
·
2018
·Vol. 12
·期 1
·194-205
·
IF 30.067
Jin-Qi Xie,Ya-Qiang Ji,Jia-Hui Kang,Jia-Li Sheng,Da-Sha Mao,Xian-Zhu Fu,Rong Sun,Ching-Ping Wong
Although integrated energy storage devices, such as in-plane micro-supercapacitors (MSCs), are attractive for powering portable microelectronic devices, it is still challenging to develop patterning techniques with high practicability and to rationally design and fabricate electrochemically active materials using feasible procedures. Here, we propose a facile solution-immersion method of fabricating interdigitated copper electrodes with an in situ converted array of Cu(OH)2@FeOOH nanotubes (NTs). A copper current collector can be patterned together with widely employed copper circuits by a facile copper-patterning approach based on cost-effective electroless catalytic deposition of copper with patterned Ag catalysts, which is greatly conducive to the integration of in-plane energy storage devices into microelectronic systems. Furthermore, the rationally designed array of Cu(OH)2@FeOOH NTs, which was converted in situ from the patterned copper electrodes, was demonstrated to be an excellent electrochemically active material with advantages that included a porous structure with a large specific surface area, excellent wettability by the electrolyte, short ion diffusion lengths and one-dimensional electron transport pathway. The resulting MSC devices that were fabricated with the interdigitated Cu(OH)2@FeOOH/Cu electrodes exhibited a high specific capacitance (58.0 mF cm−2 at 0.1 mA cm−2), a high energy density (18.07 μW h cm−2), excellent cycling stability and desirable flexibility.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Yao Jin,Xiangwei Yuan,Lian Ou,Jiaying Wu,Jiangtao Hu,Kang Xue,Xiaoli Xiong
Formaldehyde is known to harm the respiratory, nervous, and digestive systems of people. In this paper, a novel dandelion-like electrocatalyst with core–shell heterostructure arrays were fast self-assembled prepared in situ using copper foam (CF) as support substrate and 2,3,6,7,10,11 hexahydroxy-triphenyl (HHTP) as ligand (Cu(OH) 2 @Cu 3 (HHTP) 2 /CF) by a simple two-step hydrothermal reaction. The 1D Cu(OH) 2 nanorods “core” and the 2D π-conjugated conducting metal–organic frameworks (Cu 3 (HHTP) 2 c MOF) “shell” with remote delocalized electrons give the dandelion-like heterogeneous catalysts excellent electrochemical activity such as a large specific surface area, high conductivity and a fast electron transfer rate. The Cu(OH) 2 @Cu 3 (HHTP) 2 /CF exhibited excellent electrocatalytic performance for formaldehyde under alkaline conditions with a linear range of 0.2 μmol/L – 125 μmol/L and 125 μmol/L – 8 mmol/L, a detection limit as low as 15.9 nmol/L (S/N = 3), as well as good accuracy, consistency, and durability, and it effectively identified FA in food.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 21
·10064-10073
·
IF 9.931
Jiahui Kang,Jiali Sheng,Jinqi Xie,Huangqing Ye,Jiahui Chen,Xian-Zhu Fu,Guoping Du,Rong Sun,Ching-Ping Wong
Developing highly efficient and low-cost oxygen evolution reaction (OER) electrocatalysts is highly demanded, as the OER is recognized as a key half-reaction in water splitting for producing hydrogen; however, this still remains a great challenge. Herein, we design three-dimensional (3D) tubular hierarchical core–shell electrocatalysts for the OER using a simple and highly controllable two-step method. The large-scale tubular Cu(OH)2 arrays are directly grown on Cu foam (CF) at room temperature, followed by the growth of highly porous CoNi carbonate hydroxides (CH) via a low-temperature hydrothermal method on the walls of these Cu(OH)2 nanotubes (NTs). The hollow and open-structured core–shell hierarchical Cu(OH)2@CoNiCH NTs/CF electrode with a large surface area and numerous mesoporous and short diffusion paths can provide many active sites, fast electron transport and easy accessibility of water, leading to an excellent OER activity in an alkaline electrolyte with an overpotential of 288 mV and 326 mV at a current density of 30 mA cm−2 and 100 mA cm−2, respectively, also with robust durability. This new structure would open an avenue for the advancement of highly efficient OER electrocatalysts.
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Ruoyi Li,Jian Zhang,Dong Liu,Haina Bai,Chuntao Zhu,Xinyan Wang,Jia Li
In conventional Electro-Fenton systems, the oxidation process dominated by the Fe 2+ /Fe 3+ cycle and · OH radicals, although effective in degrading organic pollutants, is still limited by a narrow pH applicability range (2–4). To address this challenge, a coral-like ZnO nanospheres modified Cu(OH) 2 @CF composite electrode was synthesized in this study, which significantly broadened the applicable pH range (2–10). The ZnO/Cu(OH) 2 @CF composite electrode enhanced the selective generation of single-linear oxygen ( 1 O 2 ) and overcame the inherent defects, such as the extremely short lifetime of · OH (<1 μs), while enabling the efficient in situ generation of H 2 O 2 (272.51 mg/L, 30 min). And the complete degradation of tigecycline (TGC) was realized within 30 min with an operating cost of only 0.044 ¥·m −3 (energy consumption 0.076 kWh·m −3 ). and a low Tafel slope of only 24.80 mV·dec -1 is required for an efficient Electro-Fenton reaction. Notably, the ZnO/Cu(OH) 2 @CF composite electrode exhibited high degradation rates for a variety of typical antibiotics and could be adapted to different water quality conditions. After 10 cycles of use, its degradation rate of TGC was still as high as 92.67 %. The continuous flow reactor not only maintained more than 90 % degradation efficiency for TGC after 300 min of operation, but also maintained a high degradation rate of 80 % for mixed antibiotic wastewater. The dominant mechanism of action of 1 O 2 was deeply analyzed by bursting experiments and electron paramagnetic resonance (EPR). The two-dimensional correlation spectroscopy (2DCOS), three-dimensional fluorescence spectroscopy (3DEEMs) and liquid chromatography-mass spectrometry (LC-MS) techniques were used to reveal the degradation pathways of the pollutants and the toxicity evolution of the intermediates.
✓ 已验证
DOI
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Yong-Xiang Wu,Xun Zhou,Benwang Zhou,Chao Li,Peng Cui,Manhuan Cheng,Yang Wang,Xinsong She
Presently, Cu(OH) 2 nanowire arrays@Cu Foam (Cu(OH) 2 –NWA@Cu Foam) nanostructure has been confirmed to possess an excellent capacity of nonenzymatical electroanalysis of histamine (His). Based on Cu(OH) 2 –NWA@Cu Foam electrode, electrochemical investigations elucidated electron transfer kinetics principles of electrooxidation of His. Substantially, it was realized that a four–electron–transferring dehydrogenation was involved in diffusion–controlled electrooxidation of His, contributing tremendously to establishing as–proposed mechanization of His electrooxidation. At optimal conditions, Cu(OH) 2 –NWA@Cu Foam electrode reflected excellent electrochemical performance such as sensitivity of 3.089 mA mM –1 cm –2 , limit of determination of 94 nM, respond time of 1.6 s and linear respond rang of 0.5–1250 μM. The outperformed electroanalytical performance can be physically explicated by the dedications from larger exposed surface area, bigger interface–hydrophilicity–deduced His diffusion coefficient and less charge transfer resistance. Moreover, the outstanding selectivity, stability and reproducibility of Cu(OH) 2 –NWA@Cu Foam electrode ensured its practical effectiveness in regulating real His levels in fermented mandarin fish. Compared with control group, the mandarin fish by inoculating Lactobacillus sakei subsp . sakei delivered less His contents, deducing that inoculation of Lactobacillus sakei subsp . sakei can effectively depress His generation during fermentation process. Eventually, the one–step as–established Cu(OH) 2 –NWA@Cu Foam nanostructure positioned itself as an upcoming possibility to pursue commercialized utilization.
✓ 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）