JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
·
2025
·
IF 2
Sun Lili,Sun Xudong,Wang Yong,Li Yongcun,Luo Anyu
Zinc anodes degrade rapidly under high-temperature operating conditions, significantly impeding the development and commercial application of Zn–air batteries. In this study, zirconia-coated zinc (ZrO 2 @Zn) was synthesized using a facile sol–gel method. The composition, structure, and electrochemical properties of the ZrO 2 @Zn anode were characterized. The results show that ZrO 2 @Zn has a core–shell structure contributing to regulating the cycle life of the battery. The passivation current of ZrO 2 @Zn is lower than that of Zn. This indicates that ZrO 2 @Zn exhibits enhanced passivation stability performance. The cycle life of ZrO 2 @Zn can be extended to 72 h at extreme operating temperatures of 60 °C, nearly double that of bare Zn. The coating ZrO 2 applied on the surface of Zn can effectively avoid the direct contact between Zn and electrolyte and reduces the self-corrosion of Zn anode. The increased adsorption of H + ions by ZrO 2 at elevated temperatures without affecting the deposition of Zn 2+ prolongs the lifetime of the ZrO 2 @Zn anode. The core–shell structure of ZrO 2 @Zn effectively mitigates the occurrence of anodic side reactions and inhibits the growth of Zn dendrites, thereby safeguarding the active material and extending the battery’s cycle life.
研究领域:
材料科学
·
电化学
·
纳米技术
·
储能
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2014
·Vol. 4
·期 78
·41398-41410
·
IF 3.708
Xiuhua Li,Jinxiong Tao,Guanghui Nie,Liuchan Wang,Liuhong Li,Shijun Liao
A series of cross-linked multiblock copoly(arylene ether sulfone) ionomer/nano-ZrO2 (CLQCPAES/nano-ZrO2) composite anion exchange membranes were prepared via block copolymerization, bromomethylation, ultrasonication blending, self-crosslinking, quaternization and alkalization. The structure, and the surface and cross section morphology of the CLQCPAES/nano-ZrO2 composite membranes were characterized by solubility tests, FT-IR, XRD and SEM analyses. The combination of the determined results revealed that the CLQCPAES/nano-ZrO2 composite membranes are a complex cross-linking networks of hydrophobic domains/hydrophilic domains/nano-ZrO2 with a clear zonal distribution of uniform nano-sized particles in the hydrophilic domains, when the nano-filler loading was below 7.5%. Basic performances of the CLQCPAES/nano-ZrO2 composite membranes were assessed to investigate their application in fuel cells in terms of the water uptake, swelling ratio, ion exchange capacity (IEC), hydroxide conductivity, thermal and mechanical properties, and alkaline stability. The modification of anion exchange membranes with multiblock ionomer structures, the use of a cross-linking technique and the introduction of nano-ZrO2 particles greatly enhanced the water uptake, hydroxide conductivity, mechanical properties and alkaline stability of the composite membranes. In particular, the CLQCPAES/7.5%ZrO2 membrane with an IEC value of 1.23 mmol g−1 exhibited the best comprehensive properties and constitutes a good potential candidate for an anion exchange membrane to be used in AEMFCs.
研究领域:
高分子材料科学
·
电化学
·
能源材料
·
膜科学与技术
·
燃料电池
·
纳米复合材料
·
功能高分子
✓ 已验证
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2024
·
IF 6.5
Jingyuan Shang,Yan Li,Yiwen Hu,Tong Zhang,Ting Wang,Jinqing Zhang,Hao Yan,Yibin Liu,Xiaobo Chen,Xiang Feng,Xingong Zhang,Chaohe Yang,De Chen
Chemical upcycling through catalytic hydrocracking to fuels has potential to mitigate the serious environmental issues caused by plastic waste. Herein, non-noble tungstate-zirconia supported nickel catalyst (Ni/WO x -ZrO 2 ) with tunable Brønsted/Lewis (B/L) ratio was firstly proposed for the hydrocracking of low-density polyethylene (LDPE), which achieves hydrogenation/dehydrogenation on Ni sites and cracking/isomerization on WO x -ZrO 2 , respectively. Excellent 100 % LDPE conversion with 76.9 % liquid yield was achieved, which is comparable to noble Ru-based and Pt-based catalysts. Quantitative linear relationship between B/L ratio and hydrocracking performance was established, and the key to boost performance was keenly controlling the volcanic-shape relationship between surface WO x density and B/L ratio of catalyst. Moderate WO x surface density with higher B/L ratio enhances LDPE hydrocracking, and inhibits the hydrogenation of the primary products. However, excessive WO x polymerized and formed WO 3 crystals, compensating acid sites and inhibiting LDPE hydrocracking. This work is of prime scientific and industrial significance to the rational design of catalysts for industrial plastic hydrocracking.
研究领域:
催化
·
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Wubin Yan,Binbin Jin,Jiong Cheng,Xiaoyu Shi,Heng Zhong,Fangming Jin
Direct hydrogenation of CO2 (or HCO3–) into chemicals using organic waste biomass as a hydrogen donor is a promising carbon-negative strategy to alleviate the global warming caused by excessive CO2 emission. However, the reported conversion efficiencies are quite limited. In this work, a facile Ru/ZrO2 catalyst was developed to catalyze the hydrogenation of HCO3– into formate by using biodiesel-waste glycerol as the reductant. It was found that ruthenium can significantly promote the dehydrogenation of glycerol to provide in situ hydrogen for HCO3– hydrogenation according to the in situ Fourier transform infrared spectrometer analysis. Moreover, hydrogen spillover between ruthenium and ZrO2 support was also formed. Consequently, efficient hydrogen transfer could be constructed in the presence of Ru/ZrO2, achieving desirable in situ hydrogenation of HCO3– into formate eventually. The highest yield of formate up to 25.1% was obtained over Ru/ZrO2, while the formate yield was only 4.2% in the case without catalysts.
研究领域:
催化化学
·
环境科学
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Weixin Li,Zhaoce Sun,Xianmin Ye,Youme He
The polyphenylene sulfide (PPS) mesh-based polysulfone (PSF)-zirconia (ZrO 2 ) composite diaphragm represents a new type of high-performance diaphragm for alkaline water electrolysis hydrogen production, offering low area resistance and high chemical stability. In this study, composite diaphragms with excellent performance are prepared using preheated compression molding, phase inversion precipitation, and vacuum stirring degassing techniques. The comprehensive performance of the prepared diaphragm is compared to that of the commercial Zirfon® diaphragm. The results indicate that the prepared composite diaphragm, with a thickness of 140 μm, exhibits excellent performance. Compared to the Zirfon® UTP 220 diaphragm, the ultra-thin composite diaphragm demonstrates a reduction in area resistance from 0.19 Ω cm 2 to 0.1 Ω cm 2 , an increase in bubble point pressure from 2.31 bar to 2.46 bar, and a voltage of 1.84 V at 1000 mA cm −2 . The incorporation of the PPS mesh resulted in a substantial improvement in tensile strength. The application of an ultra-thin composite diaphragm based on PPS mesh can significantly enhance the efficiency of hydrogen production via alkaline water electrolysis.
研究领域:
材料科学
·
电化学
·
可再生能源
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 10
·1-10
·
IF 6.232
Zhen Deshuai,Shi Sisi,Gao Chan,Kang Qing,Xiao Xilin,Grimes Craig A.,Cai Qingyun
Bi, Fe, and Ti ternary co-doped ZrO 2 (BFT-ZrO 2 ) nanocomposites have been prepared by a sol-gel process and used as both adsorbent and matrix for the enrichment and determination of small molecules by surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS). The BFT-ZrO 2 nanocomposites not only can selectively enrich a wide variety of low-mass toxic pollutants but can also be used as an excellent matrix to enhance the laser desorption/ionization efficiency with low background noise and uniform co-crystalline film. Low limits of detection (LODs) (0.1 pg mL −1 for bisphenol A (BPA), 2 pg mL −1 for tetrabromobisphenol A (TBBPA), 0.1 pg mL −1 for alizarin (AZ), 0.001 pg mL −1 for bisphenol S (BPS), 0.01 pg mL −1 for indigo blue (ID), 0.01 pg mL −1 for pentachlorophenol (PCP), 100 pg mL −1 for estradiol (E2), 0.001 pg mL −1 for cetyltrimethylammonium bromide (CTAB), 0.1 pg mL −1 for crystal violet (CV), 1 pg mL −1 for malachite green (MG), 0.01 pg mL −1 for rhodamine B (RhB), and 0.01 pg mL −1 for perfluorooctane sulfonate (PFOS) were achieved. The relative standard deviations (RSDs) of shot-to-shot are 9.4–24% and of sample-to-sample 5.2–17%. The BFT-ZrO 2 matrix was successfully applied to the determination of TBBPA and BPA in tea samples. This method shows a new strategy for determination of toxic compounds in tea.
Graphical abstract
研究领域:
分析化学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS CHARACTERIZATION
·
2020
·
IF 3.562
Bo Li,Guofu Xu,Le Fu,Yao Li,Jiwu Huang
Amorphous ZrO 2 -based nanocomposite powder synthesized by sol-gel method is often used as the raw material for preparing advanced ZrO 2 -based ceramics. The crystal growth process of the amorphous ZrO 2 -based nanocomposite powder during heat treatment has a crucial influence on the final microstructure and thus the achieved performance of ZrO 2 -based ceramics. However, the crystal growth process of ZrO 2 nanocrystals (NCs), especially at the early stage, was ambiguous due to the lack of detailed investigation. To illustrate this issue, ZrO 2 -based nanocomposite powder was prepared by sol-gel method, followed by annealing at elevated temperatures. Transmission electron microscopy (TEM) was used to observe the growth process of ZrO 2 NCs. Results showed that tiny ZrO 2 lattice arrays without definite morphology were formed after the completion of nucleation. Nucleation might follow the classic nucleation mechanism of epitaxial growth by utilizing atoms as building blocks. Then, the randomly-oriented ZrO 2 lattice arrays adopt an ordered coalescence mechanism to grow to large ZrO 2 NCs. ZrO 2 lattice arrays acted as building blocks and they grew rapidly by unifying their crystallography orientations. Self-perfecting, including elimination of dislocations and adjustment of lattice spacing, occurred during the growth process. Ordered coalescence of ZrO 2 lattice arrays contributed to the rapid growth of ZrO 2 NCs. This study deepens our fundamental understanding of the growth mechanism of amorphous ZrO 2 -based nanocomposite powder during heat treatment and may offer guidelines for tailoring the final microstructure and performance of ZrO 2 -based ceramics.
研究领域:
材料科学
·
陶瓷
·
纳米技术
·
晶体学
✓ 已验证
产品关联
DOI
高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2022
·Vol. 48
·期 6
·2627-2640
·
IF 3.134
Wang Guangying,Liang Yan,Song Jian,Xu Kui,Pan Youchun,Xu Xiaolong,Zhao Yu
Co-doped MnCeO x /ZrO 2 catalysts were synthesized by impregnation method and their low temperature deNOx performance were evaluated. The physicochemical properties of the catalysts were studied. The results showed that the doped Co could promote the deNOx performance of MnCeO x /ZrO 2 significantly, and the doped catalyst with the Co/Mn molar ratio of 1:2 possessed the best catalytic performance. Compared with pure MnCeO x /ZrO 2 catalyst, the deNOx efficiency of the optimal 1Co 2 MnCeO x /ZrO 2 was higher to 93% at 100 °C, improved nearly by 17%. The complete removal of NO was achieved at the temperature range of 120–250 °C. The promoted catalytic performance of Co-doped MnCeO x /ZrO 2 catalyst was mainly attributed to the improvement of the catalyst support structure and surface acidity by Co. The catalytic reaction of NO with NH 3 over 1Co2MnCeO x /ZrO 2 catalyst follows both Eley–Rideal mechanism and Langmiur–Hinshelwood mechanism.
研究领域:
催化
·
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Lingguang Yi,Changfei Zou,Xiaoyi Chen,Jiali Liu,Shuang Cao,Xiyuan Tao,Zihao Zang,Li Liu,Baobao Chang,Yongqiang Shen,Xianyou Wang
The safety issue of lithium batteries based on liquid electrolytes has become the focus of attention, especially when the batteries are exposed to mechanical, thermal, or electrical abuse conditions. To address this issue, gel polymer electrolytes (GPEs) have attracted widespread interest due to the property of solid–liquid coexistence with higher ionic conductivity, flexibility, and safety. In this work, a poly(vinylidene-fluoride-co-hexafluoropropylene) (PVDF-HFP)/poly(methyl methacrylate) (PMMA) matrix GPE, containing bis(trifluoromethane)sulfonimide lithium salt (LiTFSI) and spherical zirconium dioxide (ZrO2) nanoparticles, is successfully designed and synthesized by a simple one-step solution-casting route. It has been found that the obtained PVDF-HFP/PMMA-ZrO2-6% (PPZ-6%) electrolyte film possesses an excellent tensile strength of 37.7 MPa. Moreover, the PPZ-6% GPE not only has a high ionic conductivity of 1.46 × 10–3 S cm–1 at 25 °C but also presents excellent interface compatibility in an Li||Li symmetrical battery. The LiFePO4||Li cell assembled with the PPZ-6% GPE exhibits good cyclic stability at room temperature, e.g., a high discharge specific capacity of 153.0 mAh g–1, and a high Coulombic efficiency of 99% after 200 cycles at 0.5 C. Therefore, this organic–inorganic hybrid GPE modified with spherical ZrO2 nanoparticles reveals a good application prospect for high-performance lithium metal batteries (LMBs).
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Jiajin Zhong,Na Li,Xiaoxuan Xu,Limin Wei,Huijian Liu,Huijuan Li,Zheng Fang,Haifeng Bao
High temperature thermally stable fiber materials with flexibility are expected to be applicable to severe conditions. In this article, ZrO 2 /Si–C–O ceramic fibers have been synthesized by the sol-gel process combined with the electrospinning technique. We focus on the changes of composition, structure and morphology with the increasing heat treatment temperature. More importantly, the effects of ZrO 2 crystalline phase transformation on mechanical property of ZrO 2 /Si–C–O ceramic fibers have been investigated. The results show that the increased temperature can lead to an increase of the fiber diameter and grain size, as well as the transformation of ZrO 2 phase. It is also found that the ZrO 2 /Si–C–O ceramic fibers possess refined crystalline grain and improved mechanical properties at a heat treatment temperature of 800 °C, which is mainly due to the fact that the amorphous Si–C–O phase containing free carbon facilitates the refinement of the crystalline grain, and the ZrO 2 in the tetragonal structure improves the flexibility of ceramic fibers. Furthermore, the obtained fibers exhibit excellent thermal stability up to 1300 °C, therefore they have broad application prospect in high temperature environment.
研究领域:
材料科学
·
陶瓷材料
·
复合材料
·
热工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2022
·
IF 5.723
Fanchao Zeng,Yongxia Zhu,Baofang Jin,Yongjun Ji,Lei Shi,Guangwen Xu,Dongxing Fu,Ziyi Zhong,Fabing Su
Multi-component promoters may efficiently improve the catalytic performance of the primary Cu-based catalysts in the Rochow-Müller reaction, but this approach is not well explored, and the roles of the promoters are not very clear. Herein, we report the ZrO 2 -supported CuO catalyst (CuO/ZrO 2 ) modified with a co-promoter of ZnO, Sn, and CuP prepared by a simple dry ball-milling method. The co-promoter could significantly increase the amount of surface adsorbed oxygen and improve the reducing ability of catalysts, facilitating the formation of the active Cu 3 Si phase and further advancing dimethyldichlorosilane ((CH 3 ) 2 SiCl 2 , M2) selectivity and Si conversion in the Rochow-Müller reaction. Compared to the state-of-the-art commercial catalyst, these CuO/ZrO 2 catalysts with the co-promoters all showed enhanced catalytic activity. Especially, the CuO/ZrO 2 catalyst with the co-existence of ZnO, Sn, and CuP promoters achieved the highest M2 selectivity and Si conversion, attributed to its most abundant surface adsorption oxygen and the strongest reducibility. This work opens up a new avenue to improve the catalytic activity of Cu-based catalysts for the Rochow-Müller reaction.
研究领域:
催化
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Yue Wang,Hongguo Zhai,Qi Guo,Yuhao Zhang,Xia Sun,Yemin Guo,Qingqing Yang,Yanyan Zhang
Heavy metals and foodborne pathogens have become key pollutants that harm aquatic products, seriously endangering food safety and human health. Therefore, in this study, a ratiometric electrochemical aptamer sensor with a novel signal amplification strategy was constructed using ZrO 2 as the substrate and Ni/Co-MOFs@AuNPs cubic nanomaterials to increase the specific surface area to simultaneously detect Cd 2+ and S.aureus. The shared hairpin complementary chains modified with ferropene (Fc) could simultaneously bind to the Cd 2+ and S.aureus aptamers modified with methylene blue (MB) and anthrquinone-2-carboxylic acid (AQ). The ratios of MB and AQ to Fc were used to realize the qualitative and quantitative detection of Cd 2+ and S.aureus. Under the optimal conditions, the electrochemical aptamer sensor for Cd 2+ and S.aureus was in the range of 1.00 × 10 −2 -1.00 × 10 4 ng/L and 1.00 × 10 1 -1.00 × 10 7 CFU/mL, and the lowest detection limit was 1.91 × 10 −4 ng/L and 1.37 CFU/mL, respectively. The aptasensor constructed in this paper can realize the simultaneous detection of Cd 2+ and S.aureus in scallop and fish, providing a new detection method for the simultaneous detection of a variety of aquatic products pollutants.
研究领域:
分析化学
·
环境科学
·
食品科学
✓ 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）