Advanced Materials Technologies
·
2022
·Vol. 7
·期 10
·2101583
·
IF 8.856
Henghao Liu,Hongjun Kang,Xin Jia,Xianshu Qiao,Wei Qin,Xiaohong Wu
Passive daytime radiative cooling (PDRC) is a low-carbon energy technology to early achieve the “carbon neutrality” goal. Developing the commercial-like colored PDRC coatings with sub-ambient cooling performance is still a big challenge. Herein, a colored bilayer ZrO 2 -PVDF PDRC coating with sub-ambient cooling performance, self-cleaning, and good weather resistance property is first reported. The colored bilayer coating is composed of a thick ultra-white ZrO 2 -PVDF reflective layer ( R solar = 0.984) and a thin colorful layer. The obtained red bilayer ZrO 2 -PVDF PDRC coating has a high solar reflectance ( R solar = 0.950), which could realize the maximum temperature drop of 3.0 °C, and the calculated theoretical cooling power is as high as 131.66 W m −2 , showing a good sub-ambient cooling performance. Furthermore, they show a good self-cleaning property. Meanwhile, the accelerated aging tests prove that they have a good weather resistance. This work provides a low-cost, simple, and large-scale method to prepare the commercial-like colored PDRC coatings with the sub-ambient cooling performance, showing a great practical application value.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
Molecular Catalysis
·
2020
·
IF 3.687
Huahua Zhao,Huanling Song,Fangyuan Wang,Zhichao Miao,Lingjun Chou
In the present work, a new strategy was developed to fabricate strong basicity on mesoporous zirconia by in-situ preservation of carbon species originated from organic template during the thermal treatment of mesoporous ZrO 2 . The carbon species was maintained on mesoporous zirconia by calcination in N 2 prior to the introduction of base precursor KNO 3 . The decomposition temperature of KNO 3 to strongly basic site K 2 O was significantly reduced from higher than 650℃ to about 400℃ in the presence of carbon species, which fascinatingly converted the endothermic decomposition reaction to exothermic process. More importantly, the tetragonal ZrO 2 support with excellent mesostructure was well stabilized by the carbon species after introduction of K species. Therefore, K 2 O supported on mesoporous tetragonal zirconia (K 2 O/M-ZrO 2 -C) were successfully fabricated. The resultant mesoporous basic material presented good activity in the synthesis of dimethyl carbonate (DMC) and the DMC yield was 60.0 %, apparently higher than that (18.1 %) of the catalyst prepared without preserving carbon species (K 2 O/M-ZrO 2 ). The strong basicity and the uniform mesopores of the catalyst were suggested to be contributed to the high activity. The obtained results will provide some fundamental understanding and guidance for rational catalyst design.
研究领域:
催化化学
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Applied Energy Materials
·
2026
·
IF 5.5
Xue-Qing Zhan,Jia-Min Xu,Xiaoge Wang,Xiaohui Li,Jing Ju,Qin Ye,Yi-Jie Zhang,Fang-Chang Tsai,Ning Ma
Conventional ceramics often require energy-intensive, high-temperature processing, which constrains their sustainability. Herein, we report an ionic melt-induced liquid-phase-assisted process to synthesize ZrO2–Y2O3–SiO2–Li2O glass-ceramics, reducing typical processing temperatures by ∼400 °C without cold isostatic pressing. By leveraging ZrO2–Y2O3 as the primary network former and SiO2–Li2O as an ionic flux, we achieve tailored glass transition (Tg = 866 °C) and crystallization (Tc = 1066 °C) temperatures. This enables low-temperature crystallization while enhancing the ionic conductivity. Phase analysis confirms coexisting tetragonal and monoclinic ZrO2, Li2SiO3, and residual SiO2–Li2O glass, with minimal nonbridging oxygen content contributing to optimized mechanical properties. The optimal composition (ZrO2–Y2O3:SiO2–Li2O = 1:1.14, molar ratio) delivers exceptional Vickers hardness (8.25 GPa), Young’s modulus (109.2 GPa), and ionic conductivity. This work outlines a sustainable pathway for the development of advanced glass-ceramics and solid electrolytes with potential implications for structural materials, functional devices, and solid-state batteries.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 5
·e70871
·
IF 4.2
Jingkai Zhou,Gang Qu,Yeli Chen,Dandan Huang
The isothermal phase equilibria of the Gd 2 O 3 –La 2 O 3 –ZrO 2 ternary system were experimentally determined at 1773 and 1573 K using a solid-phase reaction method. Continuous solid solutions of pyrochlore-type compounds (namely, Gd 2 Zr 2 O 7 and La 2 Zr 2 O 7 ) were confirmed across the ternary system, represented as La 2- x Gd x Zr 2 O 7 . The solubility limit of La 2 O 3 in the cubic fluorite ZrO 2 phase basically remains constant with decreasing temperature. The Gd 2 O 3 –La 2 O 3 –ZrO 2 ternary system was assessed by the CALculation of PHAse Diagrams (CALPHAD) method. The compound energy formalism (CEF) implemented was employed for thermodynamic descriptions of all phases within the CALPHAD method. A set of self-consistent thermodynamic parameters for the Gd 2 O 3 –La 2 O 3 –ZrO 2 system was derived.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 15
·1203
·
IF 3.2
Zhang Xiaoru,Luo Laima,Song Jing,Han Mingming,Sun Hongqian,Cao Lei,Wu Yucheng
A solvent-free strategy combining dry ball milling and calcination is developed to fabricate an Al-Y co-doped ZrO 2 (Al-YSZ) coating on LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) cathodes. Structural characterizations confirm Al-YSZ induces NCM811 lattice expansion (unit cell volume + 0.00026 nm 3 ) and reduces cation mixing ( I (003) / I (104) = 1.621). TEM shows a ~ 50 nm coating with intimate matrix contact. Electrochemically, it delivers 218.9 mAh/g at 0.1 C (21.7% higher than pristine), retains 161.5 mAh/g after 200 cycles at 1 C, and exhibits superior stability under 4.5 V (137.3 mAh/g after 200 cycles), 45 ℃ (64.5% retention), and 5 C (86.0% retention). Mechanisms involve enhanced interfacial stability, optimized Li + kinetics (diffusion coefficient 2.21 × 10 −12 cm 2 /s after cycling), and mitigated structural degradation. This scalable green strategy advances high-nickel cathode optimization.
✓ 已验证
DOI
高影响因子
Nano Energy
·
2026
·
IF 17.1
Jieyan Zhao,Wenjie Luo,Xuanlin Pan,Qing Meng,Huakang Zhang,Jing Xia,Xiangling Ren,Lei Kang,Qian Wan,Ning Qin,Jiangtao Li
Porous ceramic based radiative cooling materials offers an energy-efficient solution for buildings cooling. Yet inter-connected micropores in those materials not only weaken their mechanical strength and resistance to pollutant penetration, but also inhibit the compatibility with structural colors. Herein, ultra-high reflective SiO 2 -ZrO 2 glass-ceramics are prepared by introducing lamellar m-ZrO 2 nanotwins into SiO 2 matrix. m-ZrO 2 nanotwins are proven effective in enhancing the reflection of sunlight, which provides an alternative to the Mie scattering of pores. The glass-ceramics exhibit a solar reflectivity of 0.98 at a low porosity of 17.62%, while maintaining excellent mechanical properties. Based on self-assembly and an annealing process, long-range ordered SiO 2 microspheres arrays are deposited to the surface of the glass-ceramics, yielding structural colors and elevated reflectivity up to 0.99. The green structural colored glass-ceramics with highest reflectivity achieve 3.97 ℃ daytime cooling performance under solar irradiation of 672 W m -2 . When used as the envelope of a typical four-story midrise apartment building, such glass-ceramics demonstrate cooling energy saving by at least 15% and the highest annual electricity cost saving of 44,136 CNY (6,199 USD) across 32 representative cities in China. The developed SiO 2 -ZrO 2 glass-ceramics hold tremendous potential for use in advanced radiative cooling, particularly of buildings.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 6
·413
·
IF 3.2
Wang Yating,Pan Yunchen,Wu Jiajun,Tong Jianxi,Zhang Qilong
A series of novel glass–ceramic/ceramic composites, composed of a low softening ZnO–B 2 O 3 –SiO 2 (ZBS) glass–ceramic and SiO 2 /ZrO 2 ceramics, were fabricated for low temperature co-fired ceramic (LTCC) applications. The effects of the ZrO 2 /SiO 2 mass ratio on sintering behavior, microstructure, crystallization behavior and resultant properties of the ZBS/SiO 2 /ZrO 2 (ZSZ) composites were systematically investigated. The results indicate that the major crystalline phase Zn 2 SiO 4 remained stable with increasing ZrO 2 /SiO 2 mass ratio, while a minor ZrSiO 4 phase precipitated. Variations in the Zn 2 SiO 4 /ZrSiO 4 phase content resulted in an increase in the coefficient of thermal expansion (CTE) value from 2.75 × 10 –6 /K to 3.81 × 10 –6 /K, alongside a rise in flexural strength from 120.8 MPa to 152.3 MPa. The optimal properties were achieved in the ZSZ composite with a ZrO 2 /SiO 2 mass ratio = 4:5, sintered at 900 °C for 30 min: \({\varepsilon }_{r}\) = 5.52, tan δ = 6.92 × 10 –4 , CTE = 3.81 × 10 –6 /K, flexural strength (152.3 MPa) and excellent compatibility with Ag electrodes.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2021
·
IF 4.837
Ikram Ullah,T.A. Taha,Asma M. Alenad,Ikram Uddin,Asif Hayat,Ashiq Hayat,Muhammad Sohail,Ahmad Irfan,Javid Khan,Arkom Palamanit
In this study, sulfated zirconia with loading of platinum (Pt) and platinum alumina (PA-Al 2 O 3 ) promoted sulfated zirconia (SZ) catalysts were synthesized by hydro-thermal route. The samples were characterized by XRD, BET, FT-IR, NH 3 -TPD, and TGA. The catalytic efficiency of all the synthesized catalysts was tested on the isomerization of n -butane. The results indicated that the conversion of n -butane (71.04%), selectivity to i -butane (98.96%), and yield of i -butane (70.30%) is significantly high for PA/SZ sample than that of Pt modified SZ and bare SZ. The results of this study suggest that the SZ modified by Pt/Al 2 O 3 (PA) provided better catalytic performance and higher stability (within 25 h of TOS), when compared with SZ, and Pt-modified SZ.
研究领域:
化学工程
·
催化科学
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2019
·Vol. 21
·期 3
·606-613
·
IF 9.405
Zhenbing Xie,Bingfeng Chen,Haoran Wu,Mingyang Liu,Huizhen Liu,Jianling Zhang,Guanying Yang,Buxing Han
Transformation of biomass or biomass-based feedstocks into fuels or valuable chemicals is of great importance for the sustainable development of our society. Mesoporous Al2O3–ZrO2 with different Al : Zr molar ratios was prepared by the sol–gel method, and Cu–Ni/Al2O3–ZrO2 catalysts were fabricated by the impregnation method. The catalytic performances of the bifunctional catalysts were studied in the selective hydrogenation of levulinic acid (LA) into 2-methyltetrahydrofuran (MTHF). It was demonstrated that both Cu : Ni and Al : Zr ratios affected the selectivity to MTHF significantly. The bimetallic catalysts Cu–Ni/Al2O3–ZrO2 containing 10 wt% Ni and 10 wt% Cu gave 99.8% MTHF selectivity at full conversion of LA when the Al : Zr ratio was 9 : 1. The outstanding catalytic performance of the catalyst is related to the mesoporous structure, the acidic properties of the support and the synergistic effect between Cu and Ni. The catalyst could be reused five times without a considerable loss of catalytic activity and selectivity.
研究领域:
化学工程
·
催化科学
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
·
IF 14.229
Wenhui Li,Yi Liu,Minchen Mu,Fanshu Ding,Zhongmin Liu,Xinwen Guo,Chunshan Song
Various organic acids were investigated for preparing the highly dispersed cobalt catalysts on zirconia support, Co/ZrO 2 , by an acid-assisted incipient wetness impregnation. The organic acid-assisted preparation results in highly dispersed Co/ZrO 2 catalysts which demonstrate superior catalytic activity with only 2 wt.% Co loading for CO 2 methanation. Among the acids, the carboxylic acids with bigger molecular weight, more carboxyl groups and hydroxyl groups are more effective. Furthermore, the amino acids can also change the charge property of ZrO 2 surface through controlling the solution pH and increase the metal dispersion through strong electrostatic adsorption. It is worth mentioning that, among the numerous organic acids, citric acid-assisted preparation gives Co/ZrO 2 catalyst with superior catalytic activity and increased the CO 2 conversion from 38% to 85% with highest turnover frequency. The linear relationship between metal dispersion and TOF with the molar ratio of acid to cobalt n CA/Co ranging from 0 to 2 demonstrates the importance of well dispersed metal particles in the enhanced activity. However, when the n CA/Co value exceeds 2 and the metal particle size further decreases, but no further enhancement is observed and the CO 2 conversion even slightly decreased at the n CA/Co value of 5. The organic acids-assisted strategy can lead to increased metal dispersion and higher TOF for Co/ZrO 2 catalysts; the appropriate metal dispersion corresponds to the suitable Co-ZrO 2 interaction with oxygen vacancy which leads to more catalytically active sites for CO 2 adsorption and catalytic hydrogenation. The organic acid-assisted strategy provides a new design approach for highly dispersed and active catalysts.
研究领域:
化学工程
·
催化科学
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE IONICS
·
2019
·
IF 2.886
Wei Huang,Weidong Zhuang,Ning Li,Min Gao,Wenjin Li,Xianran Xing,Shigang Lu
LiNi 0.88 Co 0.09 Al 0.03 O 2 is one of the most promising and practical candidates to be applied as next-generation cathodes for lithium-ion batteries due to its high discharge specific capacity (approximately 210 mAh g −1 ), energy density and low cost. Nevertheless, severe capacity fading and poor rate performance are the major barriers for their large-scale application. Herein, a simple and sufficient mechanical mixing method is adopted to prepare a nanoscale Y-doped ZrO 2 modified LiNi 0.88 Co 0.09 Al 0.03 O 2 cathode material with enhanced electrochemical performance . The crystal structures, surface morphologies and electrochemical properties of the bare and modified materials are also characterized. The results confirm that the as-prepared Y-doped ZrO 2 modified LiNi 0.88 Co 0.09 Al 0.03 O 2 cathode material delivers an initial discharge specific capacity of 215.1 mAh g −1 with a coulombic efficiency of 91.8% between 2.5 and 4.3 V. The cycling stability is also remarkably enhanced with a capacity retention from 67.5% to 85.5% after 100 cycles at 1 C rate. Further investigations indicate that the aforementioned excellent performance can be attributed to suppressing impedance increase by stabilizing the cathode material from unfavorable side reactions with the electrolyte and preventing the propagation of intergranular cracking without hindering lithium-ion diffusion .
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2019
·
IF 2.938
Xin Li,Haixing Wang,Peiyong Sun,Shenghong Zhang,Zhilong Yao
Cu/ZrO 2 catalysts with or without boron modification were prepared, characterized, and evaluated in the hydrogenation of sec -butyl acetate (SBA) to 2-butanol. Cu/ZrO 2 catalysts were active for the hydrogenation of SBA but suffered serious deactivation due to the leaching of Cu. Introduction of boron onto Cu/ZrO 2 catalysts improved the dispersion of Cu species, the surface Cu + /Cu 0 ratios, and the catalyst stability owing to the enhanced interaction between Cu species and support. However, it decreased the intrinsic activity of Cu towards the hydrogenation of SBA and complicated the reaction network by accelerating acid-catalyzed isomerization and transesterification processes as a result of the strengthened acidity by boron. A further kinetic analysis unravelled that the reaction orders for SBA and H 2 are 0.58 and 0.83, respectively, and the apparent activation energy is 47 kJ/mol. Such understanding of the structural evolution of CuB/ZrO 2 catalysts and the consequent catalytic performances with the B contents may provide insights useful for the design of Cu catalysts with desirable stability for hydrogenation of SBA and other esters.
研究领域:
催化化学
·
材料科学
✓ 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）