ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
De Zhao,Zhihua Wu,Wei Zhang,Jian Yu,He Li,Wen Di,Yourong Duan
To date, ZnO array-based microfluidic fluorescence assays have been widely investigated and have exhibited excellent performance in the detection of cancer biomarkers. However, the requirements of highly sensitive detection necessitate further improvement of current Zn-based fluorescence detection devices. Here, a rhombus-like Zn(OH)F array-based microfluidic fluorescence detection device is proposed. Construction of Zn(OH)F arrays on the inner wall of a microchannel is carried out via a microfluidic chemical method. A substrate-induced growth strategy for Zn(OH)F arrays is proposed, and various micro/nanostructured Zn(OH)F arrays are successfully obtained. Zn(OH)F nanorod arrays with a high aspect ratio can be constructed on the columnar ZnO nanorod arrays, and the results indicate that the fluorescence enhancement factor (EF) of the Zn(OH)F arrays toward Cy3 is approximately 4-fold that of the ZnO nanorod arrays, which can be attributed to the higher excitation light absorption and evanescent electric field. In human epididymis-specific protein 4 (HE4) detection, the limit of detection (LOD) reaches 9.3 fM, and the dynamic linear range is 10 fM to 100 pM. It has been demonstrated that Zn(OH)F nanorod array-based microfluidic devices are excellent fluorescence assay platforms that also provide a new design and construction strategy for fluorescence enhancement substrates for the detection of biomarkers.
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高影响因子
JOURNAL OF THERMAL SPRAY TECHNOLOGY
·
2024
·Vol. 33
·期 5
·1694-1708
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IF 3.2
Zhang Lu-lu,Ma Wen-chao,Liu Yan-cai,Cao Hong-wei,An Ya-qiong,Huang Hai-fan,Zhang Hao-lin,Qiao Jiang-hao,Li Xiao-wei,Liu Hong-tao
In this paper, as-received Zn powder and as-prepared Zn@(ZnWO 4 /ZnO) core–shell powder were used as feedstocks for plasma spraying to prepare Zn-based composite coatings and nano-ZnO was co-deposited by chemical vapor deposition induced by plasma spraying. The composition and morphology were controllable within certain range by plasma spraying power. The photocatalytic activities of the coatings were analyzed by the degradation efficiency of methyl orange (MO) solution. It was found the photocatalytic activity can be improved with ZnWO 4 decoration. The Zn/ZnO/ZnWO 4 coating which presented tremella-like surface morphology was testified to have the best photocatalytic activity under UV light irradiation among all coatings. On the other hand, the chemical surface modification with 1H,1H,1H,2H-perfluorodecyltriethoxysilane (FAS-17) was implemented to produce superhydrophobic coatings. Among all modified coatings, the ZnWO 4 -containing coating with tremella-like surface structure presented the best superhydrophobicity. By the cyclic wetting and tape adhesion experiments, the tremella-like structure was proved to make a great improvement on the robustness of the Zn-based superhydrophobic coatings. The superhydrophobic and photocatalytic properties provide the possibility for the application of the coating in the fields of antifouling, antibacterial, and photocatalytic degradation of organics. Graphical Abstract
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高影响因子
FUEL
·
2022
·
IF 8.035
Yi-Ming Gu,Ya-Hui Wang,Sheng-Sheng Zhao,Hong-Jun Fan,Xiao-Wei Liu,Zhiping Lai,Shu-Dong Wang
Carbon capture from flue gases is one of the crucial routines for reducing current CO 2 emissions and mitigating the greenhouse effect. Metal-organic frameworks (MOFs) have received a lot of interest as efficient solid adsorbents for CO 2 /N 2 separation in flue gas treatment. However, many MOF materials are susceptible to the presence of water vapor, which has a significant impact on their adsorption efficacy and moisture stability. Here in this work, we reported two pillar-layered Zn-MOFs with N -donors, i.e., Zn 2 (TRZ) 2 (Fuma) and Zn 2 (TRZ) 2 (BDC), which demonstrated high CO 2 uptakes (3.92 and 1.52 mmol/g) and CO 2 /N 2 (132 and 20.5) adsorption selectivities at 298 K and 101 kPa, among the best comprehensive results reported by far. After seven days of exposure to a 100 % RH environment, it was found that, the Zn-N pillar contributes to the robust structure of MOFs . Furthermore, in-depth theoretical calculations indicated the guest-framework interactions, and dynamic sorption tests confirmed high working capacities (2.78 and 1.14 mmol/g), sufficient water stability and remarkable cycling performance of the studied MOFs under humid ambient conditions. We believe this work provides a routine to prepare robust and promising candidates to address the challenge in carbon capture under humid conditions.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lei Liu,Mingshuo Zhen,Liyong Wang,Bin Li,Chengfu Deng,Zhixing Zhang,Xiangqian Fan,Ning Li,Huiqi Wang,Chen Li,Shengliang Hu
Zn-ion electrochromic energy storage devices (ZEESDs) incorporate electrochromism and energy storage into one platform that can visually indicate the working status through a real-time color change, attracting considerable attention in energy-saving buildings and intelligent electronics. However, typical ZEESDs generally consist of Zn metal electrodes and normal liquid electrolytes, resulting in the dendrite issues and restricted operating temperatures as well as inferior cycle stability. Herein, an all-solid-state dendrite-free ZEESD was constructed based on polyaniline (PANI) positive electrode, monoclinic WO 3 ( m -WO 3 ) negative electrode and Zn 2+ -based gel electrolyte. Benefiting from the complementary synergistic effect of electrodes and electrolytes, the resultant ZEESD avoids heavy Zn metals, addresses the dendrite formation problem, and exhibits remarkable electrochromic and electrochemical performances. The prototype ZEESD possesses high energy/power density (97 Wh kg −1 /976.2 W kg −1 and 28.6 μWh cm −2 /0.27 mW cm −2 ), large optical modulation (∼52.4%@630 nm), high coloration efficiency (96.8 cm 2 C −1 at 630 nm), along with outstanding cycling stability (∼94.4% capacity retention even after 6000 cycles). Impressively, the quasi-solid-state electrolyte maintained outstanding electrochemical activity enabling the ZEESD to cycle efficiently even under hash temperatures, presenting enormous potential for intelligent electronics in all-climate (−30 °C to 60 °C) conditions. This work provides a novel strategy to construct next-generation dendrite-free Zn-ion electrochromic energy storage devices for innovative consumer electronics even in harsh environments.
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高影响因子
Nanoscale
·
2021
·Vol. 13
·期 22
·10127-10132
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IF 7.79
Wenjun He,Hui Liu,Jianing Cheng,Jing Mao,Cong Chen,Qiuyan Hao,Jianling Zhao,Caichi Liu,Ying Li,Limin Liang
Designing non-noble-metal electrocatalysts with excellent performance and economic benefits toward the hydrogen evolution reaction (HER) is extremely crucial for future energy development. In particular, the rational cationic-doped strategy can effectively tailor the electronic structure of the catalysts and improve the free energy of the adsorbed intermediate, thus enhancing HER performance. Herein we reported Zn-doped Ni3S2 nanosheet arrays supported on Ni foam (Zn-Ni3S2/NF) that were synthesized by a two-step hydrothermal process for improving HER catalysis under alkaline conditions. Remarkably, the obtained Zn-Ni3S2/NF displays excellent HER catalytic performance with an overpotential of 78 mV to reach a current density of 10 mA cm−2 and dramatic long-term stability for 18 h in 1 M KOH. In addition, the results based on the density functional theory calculations reveal that Zn dopants can modulate the electronic structure of Ni3S2 and optimize the hydrogen adsorption free energy (ΔGH*). Thus cationic-doping engineering provides an efficient method to enhance the intrinsic activities of transition-metal sulfides, which may contribute to the development of nonprecious electrocatalysts for HER.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
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IF 4.939
Changlin Li,Yanfang Wang,Shangrong Chen,Wei Zhang,Zi Wang,Zhongyu Hou
The erosion issue of ZnO nanorod arrays (NRAs) film is the major obstacle in surface sensitization of ZnO NRAs grown on Zn foil substrate for photoelectrochemical (PEC) applications. In this paper, PEC performance of ZnO NRAs grown on Zn foil substrate was greatly enhanced by coating ZnSe and CdSe on the surface of ZnO NRAs. Dense ZnO NRAs were in - situ grown on seed-free Zn foil substrate in a NH 3 ·H 2 O and NaOH hydrothermal system. ZnSe/CdSe co-sensitized ZnO heterostructures were then successfully synthesized using ZnO NRAs as precursors by two successive in - situ ion exchanges without damaging Zn foil and ZnO NRAs film. To obtain optimal photoconversion efficiency, anion exchange time and temperature were optimized. ZnO/ZnSe/CdSe heterostructures with optimized structure were shown as a layer of compact ZnSe/CdSe nanofilm conformally and uniformly coated on ZnO NRAs, which leads to efficient separation of photogenerated carriers , significant enhancement in visible-light absorption, and excellent PEC performance with photocurrent density of 3.008 mA/cm 2 (−0.2 V vs . Ag/AgCl) and photoconversion efficiency of 1.99% (0.418 V vs . RHE in polysulfide electrolyte solution), 27.55 and 40.61 times higher than those of ZnO NRAs, respectively.
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高影响因子
CHEMISTRY OF MATERIALS
·
2022
·
IF 10.508
Mao-Yin Ran,Sheng-Hua Zhou,Bingxuan Li,Wenbo Wei,Xin-Tao Wu,Hua Lin,Qi-Long Zhu
Simultaneous regulation and control of non-linear second-harmonic-generation (SHG) coefficients (deff) and linear birefringence (Δn) of non-centrosymmetric (NCS) crystals is a crucial aspect of improving the non-linear optical (NLO) performance, yet it remains a huge challenge in modern laser techniques and science. Herein, a series of melilite-type oxide-derived NCS oxychalcogenides, Sr2MGe2OS6 (M = Mn, Zn, and Cd), are successfully designed and synthesized through a facile partial isovalent chemical substitution strategy. These isostructural compounds crystallize in the tetragonal NCS space group P4̅21m (no. 113) and feature unique two-dimensional Cairo pentagonal tiling layers composed of heteroligand [GeOS3] and tetrahedral [MS4] asymmetric building units (ABUs). Compared to the parent melilite-type oxides, the derived title compounds not only successfully realize the phase matchability transformation [i.e., from non-phase-matching (NPM) to phase-matching (PM)] but also greatly improve the IR-NLO performance (especially, simultaneously boosting deff and Δn). Sr2CdGe2OS6 exhibits the best comprehensive performance among oxychalcogenides, including a wide PM cutoff edge (>525 nm), a strong deff (0.8 × AgGaS2), a giant laser-induced damage threshold (19.2 × AgGaS2), a large band gap (3.62 eV), as well as a broad transmission cutoff region (0.28–12.0 μm). Furthermore, highly distorted [GeOS3] ABU in this melilite-type structure is proved to be the profitable bifunctional NLO-active unit, which can contribute to the search and design of novel IR-NLO crystals with a large Δn and a strong deff based on the experimental results and theoretical calculations. This work demonstrates the first examples of PM melilite-type oxychalcogenides and offers new perspectives on the phase matchability transformation through the partial isovalent chemical substitution approach, which will play a constructive role in the future design of high-performance IR-NLO heteroanionic materials.
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高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Kun Li,Xiao Chang,Xurong Qiao,Shifan Yu,Xiaofang Li,Fujun Xia,Qingzhong Xue
Metal-organic frameworks (MOFs) derived metal oxides, as a promising gas-sensing material, have received extensive attention because of its unique advantages of abundant pore structures, high surface areas and diverse compositions. In this work, hierarchical flower-like Zn-doped Co 3 O 4 derived from Zn/Co-MOF is prepared through a process of solvothermal synthesis and annealing. 3 mol% Zn-doped Co 3 O 4 exhibits the highest response of 52.3 toward 100 ppm acetone at 200 °C, which is nearly 20 times higher than that of pure Co 3 O 4 . Additionally, 3 mol% Zn-doped Co 3 O 4 based sensor displays a ppb-level detection limit for acetone, outstanding selectivity, excellent long-term stability and good independence to humidity. The probable reasons for the improved sensing properties are attributed to the changes of carrier concentration, specific surface area and chemisorbed oxygen amount due to Zn doping.
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高影响因子
Journal of Energy Storage
·
2019
·
IF 3.517
Jianhua Yu,Zhenxing Cui,Xu Li,Di Chen,Jiawen Ji,Qian Zhang,Jing Sui,Liyan Yu,Lifeng Dong
Recently, rational design and synthesis of two-dimensional (2D) nanoflake based architectures have attracted great attention in energy storage systems due to their unique properties, such as high specific surface area, superior electrical and thermal conductivity. Zeolitic imidazolate frameworks (ZIFs) with 2D structure can be synthesized by a facile aqueous method and be used to obtain 2D metallic/binary metallic oxides. In this paper, graphene oxide and Zn 2+ were added in the synthesis of Co-ZIF, and its derived oxide (ZnCoO-G) exhibits 2D nanosheet structure with well dispersed Co 3 O 4 and ZnO nanoparticles after heat treatment. Compared with the derivatives without graphene oxide (ZnCoO) and Zn 2+ (CoO-G), ZnCoO-G demonstrates the highest specific capacitance of 711.6 F g −1 at 1 A g −1 with a capacitance retention of 63.6% at 5 A g −1 after 1000 cycles. Also, an asymmetric supercapacitor (ASC) with ZnCoO-G and commercial active carbon as positive and negative electrodes has a maximum energy density of 18.7 W h kg −1 at a power density of 800 W kg −1 .
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Mingwu Luo,Xiongri Gan,Xinyue Zhao,Lingqi Huang,He Zhu,Xingbin Yan,Kaiyuan Shi
Aqueous Zn-ion batteries (ZIBs) are promising for large-scale energy storage due to their low cost and high safety. However, ZIBs suffer from Zn dendrite growth and side reactions over the charge-discharge processes. Herein, a facile and scalable strategy was developed based on electrophoretic deposition (EPD) of surfactant-stabilized multi-wall carbon nanotubes (MWCNT) to enhance the reversibility of Zn foil. The MWCNT coating provides high surface area and improved electronic conductivity, thus facilitating rapid charge transfer behavior over the Zn 2+ plating/stripping processes. The results indicated that cationic surfactants , cetyltrimethylammonium bromide (CTAB), are feasible to improve the stability of Zn anode as electrolyte additives in parallel to dispersion and charging of MWCNT. Single-crystalline cryptomelane-type α-MnO 2 nanowires were successfully synthesized by oxalate-reduction of potassium permanganate under ambient conditions. The ZIBs, prepared by α-MnO 2 nanowire cathode and MWCNT coated Zn anode, demonstrated surpassing rate capacity and long cycling stability. The interfacial analysis of electrodes, based on surface tension and contact angle measurements, shed some light on the design and development of multi-functional additives for advanced ZIBs.
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高影响因子
Energy Materials
·
2022
·Vol. 2
·期 5
·N
·
IF 0
Yi Guo,Cheng Liu,Lei Xu,Kaixin Huang,Hao Wu,Wenlong Cai,Yun Zhang
The article reveals that nitrogen-doped carbon coating from discarded cigarette filters can improve zinc-ion battery performance by suppressing side reactions and dendrite growth.
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DOI
FUEL
·
2022
·
IF 8.035
Kaige Li,Tao Li,Yuhang Dai,Yanhong Quan,Jinxian Zhao,Jun Ren
MCo 2 O 4 (M = Co, Cu, Ni or Zn) spinel catalysts have been prepared using a chemical co-precipitation method and applied in toluene combustion. The physicochemical properties of the MCo 2 O 4 catalysts was discussed to explore the impact of substitution on the tetrahedral A-site ions. The results of the activity evaluation show that the catalytic performances of Co 3 O 4 , CuCo 2 O 4 and NiCo 2 O 4 with urchin-like morphology are far superior than ZnCo 2 O 4 nanoparticles. The CuCo 2 O 4 catalyst exhibited the most superior performance for toluene combustion, and the toluene conversion rate reached 90% at 230 °C. When compared to the other catalysts, the optimal activity of CuCo 2 O 4 was attributed to the presence of more reactive oxygen species, a higher concentration of Co 3+ ions on catalyst surface and better reducibility at relative lower temperature. Moreover, the catalytic activity of the CuCo 2 O 4 catalyst did not decrease significantly in the long-term test, demonstrating its excellent stability.
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