Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
·
IF 14.7
Su Han,Li Jingru,Zhong Yu,Liu Yu,Gao Xuhong,Kuang Juner,Wang Minkang,Lin Chunxi,Wang Xiuli,Tu Jiangping
Sulfides are promising electrolyte materials for all-solid-state Li metal batteries due to their high ionic conductivity and machinability. However, compatibility issues at the negative electrode/sulfide electrolyte interface hinder their practical implementation. Despite previous studies have proposed considerable strategies to improve the negative electrode/sulfide electrolyte interfacial stability, industrial-scale engineering solutions remain elusive. Here, we introduce a scalable Li-Al-Cl stratified structure, formed through the strain-activated separating behavior of thermodynamically unfavorable Li/Li 9 Al 4 and Li/LiCl interfaces, to stabilize the negative electrode/sulfide electrolyte interface. In the Li-Al-Cl stratified structure, Li 9 Al 4 and LiCl are enriched at the surface to serve as a robust solid electrolyte interphase and are diluted in bulk by Li metal to construct a skeleton. Enabled by its unique structural characteristic, the Li-Al-Cl stratified structure significantly enhances the stability of negative electrode/sulfide electrolyte interface. This work reports a strain-activated phase separation phenomenon and proposes a practical pathway for negative electrode/sulfide electrolyte interface engineering.
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
·
2016
·
IF 2.758
Kun Tong,Rong Li,Jingting Zhu,Heliang Yao,Huaijuan Zhou,Xianzhe Zeng,Shidong Ji,Ping Jin
VO 2 /Al-O core-shell structure (V/AO) was synthesized by a facile method and its application for thermochromic film on smart window was investigated. Comparisons of thermochromic properties and stabilities in different environments between VO 2 and annealed V/AO nanoparticles were made. As a result, VO 2 nanoparticle was easily oxidized and lost thermochromic property. In contrast, with the protection provided by Al-O-based shell, the VO 2 core remained stable at a high temperature (350 °C in air) and in H 2 O 2 solution. Especially, thermochromic films made by annealed V/AO nanoparticles almost kept thermochromic performance in damp heating environment (T=60 °C, RH=90%) for 20 days while VO 2 films lost their thermochromic properties after 3 days. Besides, the degradation progress of VO 2 and V/AO nanoparticles in damp heating environment was also explored. Results indicate that Al-O-based shell provides a good protection for the VO 2 core originated from the compact structure of shell, which effectively prevents oxygen and water from eroding VO 2 . In summary, the VO 2 nanoparticles coated with Al-O-based shell exhibit a great potential in the application of smart window.
研究领域:
材料科学
·
纳米技术
·
智能材料
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
·
2025
·
IF 2.5
Yuge Liu,Zhiguo Li,Yongmei Jia
The fast detection of environmental contaminants catechol (CC) and hydroquinone (HQ) is of great importance to public health. In this research, a composite was firstly synthesised by a pre-exfoliation method, the components of which were Ni-Al-LDH and reduced graphene (rGO). This material was then utilised in the development of a highly sensitive biosensor for determining CC and HQ. The construction procedure involved modification of glassy carbon electrode (GCE) by the composite and laccase (LAC). Tests conducted by electrochemical methods showed the addition of laccase can greatly improve the response signal of electrochemical measurements on the composite modified GCE to CC and HQ. The electrochemical tests were performed by utilising 0.1 mol/L phosphate-buffer. When separately detected, the detecting linear range for CC by the biosensor was 0.009–0.58 and 0.95–4.4 mmol/L. When it comes to HQ, the range was 0.009–0.57 and 0.95–4.4 mmol/L on the composite/enzyme modified electrode. When the biosensor was used for detecting CC and HQ together, the linear ranges were both 0.019–0.56 and 1.0–4.4 mmol/L. The detection limits calculated for simultaneous detection were 0.75 and 0.47 μmol/L, respectively. The sensor also possessed excellent sensitivity, selectivity and long stability. For applicability of the biosensor, it was used in analysing the two substrates in real water samples, and the recoveries were acceptable.
研究领域:
环境科学
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生物化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
AICHE JOURNAL
·
2024
·
IF 3.5
Yanru Zhu,Zhen Zhang,Yunfei Zou,Jian Zhang,Zhe An,Xin Shu,Hongyan Song,Jing He
Catalytic conversion of biomass-derived 5-(hydroxymethyl)furfural (5-HMF) into carbon-increased hydrocarbons as drop-in energy-rich biofuels has received a great deal of concern for the development of sustainable chemical industry. Here, we demonstrate a one-pot conversion of 5-HMF into C 9 -alkanes on one single catalyst, acidic–basic layered double oxides (Mg(Al)(Zr)O) supported CuCo alloy. The well-defined multifunctional catalytic sites with harmonious combination carry out cascade catalysis, affording C 9 -alkanes (including 30% of more value-added branched-cycloalkanes) in 83% yield. The basic–acidic sites on Mg(Al)(Zr)O show high activity for aldol condensation of 5-HMF and acetone, producing 4-[5-(hydroxymethyl)-2-furanyl]-3-buten-2-one (HAc) in a yield of >99%. The engineered Co–Cu–Co linkages on supported CuCo perform efficient hydrodeoxygenation, affording C 9 -alkanes in a selectivity of 96% from HAc. C 9 -cycloalkanes are generated from the cyclization of the corresponding monohydric alcohol intermediates by the synergy of acidic and CuCo sites in the hydrodeoxygenation reaction.
研究领域:
化学工程
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催化
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可再生能源
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生物质转化
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2022
·Vol. 12
·期 1
·1-10
·
IF 4.996
Tan Meina,Qin Yang,Wang Yiping,Zhang Fazhi,Lei Xiaodong
We propose a new Cu–Al dual-ion battery that aqueous solution composed of LiCl, CuCl and AlCl 3 (LiCuAl) is used as the electrolyte, CuS is used as the cathode of aqueous aluminum ion battery for the first time and copper foil is used as the anode. The assembled Cu–Al dual-ion battery yields a reversible capacity of 538 mA h/g at 200 mA/g, and exhibits longterm cycling stability of over 200 cycles with 88.6% capacity retention at 1000 mA/g. Above excellent performance is inseparable from the three components of LiCuAl electrolyte and electrode materials. The Al-storage mechanism of CuS is proposed that the S–S bond in CuS lattice interacts with aluminum ions during the aluminum storage process. In addition, the charging and discharging process does not cause irreversible damage to the S–S bond, thus Cu–Al dual-ion battery with CuS as cathode shows great cycle stability.
研究领域:
电化学
·
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Jianjun Zeng,Kuibao Zhang,Xi Zhang,Shengquan Yu
The co-precipitation method allows rapid and large-scale preparation of highly active Mg–Al spinel precursors, but the crystalline growth of precursors affects the activity of the calcined powders. In the study, the stirring is introduced to inhibit the crystal growth during aging. The effects of stirring during aging on the grain growth of precursors, the phase composition and morphology of calcined powders and the optical transmittance of ceramics were comparatively investigated. It is found that the rod-like morphology obtained by static aging would be retained after calcination, resulting in the formation of a small number of pores in the HIPed ceramics. The stirring effect inhibits the growth of the precursor and molds it into granular-like particles, resulting in spherical-like particles of approximately 50 nm after calcination. The transmittance of stirred aging in the near-infrared wavelength band is also above 80 % (1000–1500 nm) and the maximum transmittance of 84 % can be achieved at 1300 nm wavelength.
研究领域:
材料科学
·
陶瓷
·
无机化学
·
光学材料
✓ 已验证
产品关联
DOI
高影响因子
Catalysis Science & Technology
·
2021
·Vol. 11
·期 9
·3039-3046
·
IF 6.119
Yuxiang Liu,Xuejun Xu,Shangchun Lv,Hewen Li,Zhichun Si,Xiaodong Wu,Rui Ran,Duan Weng
Aluminium doped strontium titanate, SrTiO3(Al), is considered as the most promising candidate photocatalyst for water splitting; however, it suffers from fast recombination of photogenerated charges and little photocatalytic activity for overall water splitting. Precious metals, such as RhCrOx, are always needed as cocatalysts to enhance the photocatalytic performance. Herein, nitrogen doped graphene quantum dots (NGQDs) were prepared and applied as a hydrogen evolution reaction (HER) cocatalyst of SrTiO3(Al)/CoOx for photocatalytic overall water splitting. The designed NGQDs/SrTiO3(Al)/CoOx is highly active for overall water splitting achieving a H2 evolution rate of 18.8 μmol h−1 and an O2 evolution rate of 9.0 μmol h−1, respectively. The NGQDs and CoOx are dispersed on the different crystal facets of octagonal SrTiO3(Al), which is beneficial to the spatial separation of photogenerated electrons and holes. The strong interaction between NGQDs and SrTiO3(Al) via Ti–O–C chemical bonds enhances the charge transfer and separation. Moreover, the pyrrole N species within NGQD networks act as active sites for the hydrogen evolution reaction.
研究领域:
材料科学
·
化学
·
纳米技术
·
光催化
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Hongdi Fu,Shuo Wang,Tinglu Song,Weiqiang Xiong,Xuanyan Liu,Kangcheng Xu,Xiaodong Li,Meishuai Zou
The superior combustion heat, lower ignition temperature, and enhanced combustion efficiency of aluminum–lithium (Al-Li) alloy powders have garnered significant research attention in relation to Al powders. However, the inadequate compatibility between Al-Li alloy powders (especially when Li > 3 wt%) and propellant components limits its application in the development of composite solid propellants. This study focuses on the surface-coating active Al-4.3Li (wt.%) alloy powder using a composite fluorosilane coupling agent to improve compatibility and combustion performance. A coating layer with a thickness of 30–40 nm was successfully formed on the surface of Al-4.3Li alloy powder through interactions involving Al-F, Al-O-Si, and Li-O-Si bonds, thereby achieving remarkable hydrophobicity. The heat release increased by 7.5 %, while the ignition delay time of the alloy powder decreased by nearly 200 ms, resulting in a significantly enhanced combustion performance in relation to that of the original Al-4.3Li alloy powder. Moreover, the modified Al-4.3Li alloy powder exhibited better compatibility, and no cracks or bubbles were observed in the cross-section of the propellant containing modified Al-4.3Li metal fuel. This study provides an effective approach for utilizing Al-Li alloy powders in solid propellants, which is of great significance for the development of high-energy propulsion systems.
研究领域:
材料科学
·
推进工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Liman Chen,Yang Yang,Guixiang Wang,Yanli Wang,Simon Ochieng Adede,Meng Zhang,Caishan Jiao,Di Wang,Dashuai Yan,Yibo Liu,Duanjie Chen,Weibing Wang
A new three-layered film was fabricated on magnesium (Mg) alloy via electroplating to guard against corrosion in a chloride aqueous environment, which consisted of an underlying double-layered zinc/copper (Zn/Cu) and a top aluminum–zirconium (Al–Zr) layer. The Zn/Cu underlayers not only impeded the galvanic corrosion between the Al–Zr coating and Mg alloy but also improved the adhesive ability between the substrate and the upper Al–Zr layer. Herein, we discussed the nucleus sizes of Al–Zr coatings at the stage of nucleation carried out with different contents of ZrCl4 in AlCl3–1-butyl-3-methylimidazolium chloride ionic liquid. The sandwichlike three-layered Zn/Cu/Al–Zr coatings were systematically investigated by surface morphology, phase structure, hardness, anticorrosion performances, and first-principles calculations. The corrosion current density declined from 1.461 × 10–3 A·cm–2 of bare Mg to 4.140 × 10–7 A·cm–2 of the Zn/Cu/Al–Zr3 sample. Neutral salt spray testing demonstrated that the Zn/Cu/Al–Zr3 sample showed no evident signs of corrosion after 6 days of exposure. The enhancement of the corrosion protection property was related to the fact that the application of the Cu layer changed the corrosion direction from initial longitudinal corrosion to extended lateral corrosion and the top Al–Zr coating hindered the transmission of aggressive ions. In addition, upon increasing the Zr content in the alloy films, the Fermi energy reduced initially and then increased. The Al–Zr3 alloy with 8.3 atom % Zr showed the lowest Fermi energy (−3.0823 eV), which exhibited the most efficient corrosion protection. These results showed that the prepared three-layered coating provided reliable corrosion protection to Mg alloy and may thus promote its practical applications.
研究领域:
材料科学
·
腐蚀与防护
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xiaoya Gao,Zhimin Li,Honglin Yan,Dongyan Zhang,Yuan Wang,Yuan Ha
Ni-rich layered LiNi 0.80 Co 0.15 Al 0.05 O 2 (NCA) cathode materials have attracted extensive attention in power lithium ion batteries on account of their high specific capacities and low voltage delay. However, they still suffer from inferior cycling stability, especially operating at a high cutoff voltage. In this paper, a surface modification strategy was proposed by utilizing Al(PO 3 ) 3 as a coating material to enhance the cycling performance of NCA in 2.7–4.6 V (vs. Li/Li + ). The surface modification effects of Al 3+ lattice doping and Al(PO 3 ) 3 coating were verified to be well achieved. In particular, besides the functions in stabilizing surface crystal structure of the NCA and isolating the erosion from electrolyte, the Al(PO 3 ) 3 coating could eliminate the residual lithium on the NCA surface to in-situ generate the Li 3 PO 3 which was conductive to the rate performance. Accordingly, the Al(PO 3 ) 3 -modified NCA cathode delivered excellent cycling performance, of which the initial discharge capacity was 235.9 mAh . g −1 at high cutoff voltage of 4.6 V, with a capacity retention of 71.6% after 100 cycles at 1 C. This work demonstrates the feasibility of surface modification on NCA via the phosphate coating with multiple functions, and provides an efficient approach to improve the cycling stability of Ni-rich layered cathode materials at higher cutoff voltage.
研究领域:
材料科学
·
电化学
·
锂离子电池
·
能源存储
·
表面工程
·
固态化学
✓ 已验证
DOI
高影响因子
Journal of Building Engineering
·
2024
·
IF 6.7
Wenjie Liu,Biqin Dong,Peiyu Chen,Lei Zeng,Ming Peng,Xiang Wang,Yanshuai Wang,Shuxian Hong
In situ growth of different anion-intercalated layered double hydroxide (LDH) films on steel substrates for corrosion resistance has been achieved via the electrodeposition-hydrothermal method, but its growth process remains unclear. In this study, the effects of electrodeposition potential (−1.1 to −1.4 V) on the formation and growth mechanism of Zn/Al-NO 3 − -LDH films were investigated using XRD, FTIR, and SEM techniques. The results demonstrated that weak potentials either failed to form the LDH film or caused cracks, while excessive potentials resulted in hydrogen evolution and the formation of heterogeneous ZnO. The LDH films prepared at the optimal potential of −1.3 V were dense and uniform, with an adhesion grade of 4B, exhibiting a corrosion inhibition efficiency of 80.6 % in a 3.5 wt% NaCl solution.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2025
·
IF 5.5
Zhu-Yu Li,Le-Ran Li,Tong Wu,Qi Niu,Bing Zhang,Ji Liu,Kai Li,Qiang Lu
Calcium-looping-based thermochemical energy storage (TCES) technology can be embraced for peak load shifting in renewable energy generation systems. However, the energy storage properties of Ca-based materials rapidly decay after multiple cycles. In this study, a synergistic strategy involving pyroligneous acid impregnation and Mn–Co–Al incorporation was developed to improve the pore structure, enhance the oxygen vacancy concentration, and boost antisintering performance of the calcium-based composites, thereby significantly improving their TCES properties and cyclic durability. The modified CaO-based composites were systematically analyzed using various characterization methods to evaluate their heat storage performance, sintering resistance mechanism, and physicochemical properties. Characterization results revealed that the codoped sample with Ca:Mn:Co:Al = 100:12:4:5 (PACa-Mn12Co4Al5) possessed a loose and porous surface with a measured specific surface area of 13.72 m2/g, providing channels for CO2 diffusion into the inner particles. Ca3CoMnO6 and Ca3Al2O6, acting as inert supports, were uniformly distributed in PACa-Mn12Co4Al5, effectively mitigating sintering. The addition of Mn–Co–Al strengthened the basicity and promoted oxygen vacancy formation in PACa-Mn12Co4Al5. The oxygen vacancies encouraged the formation of ion diffusion channels, reducing the O2– transport resistance across the surface and within the bulk of PACa-Mn12Co4Al5, thereby improving the reaction activity and conversion efficiency. PACa-Mn12Co4Al5 demonstrated excellent heat storage performance under calcination at 750 °C and carbonation at 850 °C. After 40 and 100 cycles, its energy storage density remained at 97.29% and 84.65% of the initial value (1212.79 kJ/kg), respectively. Moreover, the average radiation absorptance of PACa-Mn12Co4Al5 reached 59.85%, 5.26 times that of limestone-based CaO. Therefore, PACa-Mn12Co4Al5 is a promising heat storage material, providing guidance for the industrial application of Ca-based TCES materials.
研究领域:
储能
·
材料科学
·
化学工程
·
可再生能源
·
热化学
✓ 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）