JOURNAL OF ALLOYS AND COMPOUNDS
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2019
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IF 4.175
Yurong Ren,Xiaofang Lai,Minhao Guo,Ruiqi Wang,Jun Deng,Jikang Jian
Three layered quaternary sulfides, NaLi M S 2 ( M = Mn, Fe, Co) were synthesized by solid-state reactions. They adopt a trigonal CaAl 2 Si 2 -type structure (S.G. P -3 m 1) with Li and M randomly distributed at the tetrahedral metal site. Magnetic measurements reveal spin-glass ground states for these compounds, in contrast to the long-range antiferromagnetic order in the ternary counterpart NaFe 1.6 S 2 . As evidenced by electrical resistivity and optical measurements , all these three compounds show semiconducting nature, consistent with the results of first-principles calculations. The measured band gaps are 3.4 eV and 1.25 eV for NaLiMnS 2 and NaLiCoS 2 , respectively. Photoelectric measurements on NaLiCoS 2 demonstrate its potential application in photovoltaic devices .
研究领域:
材料科学
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固体化学
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凝聚态物理
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无机化学
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功能材料
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MATERIALS CHEMISTRY AND PHYSICS
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2021
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IF 4.094
Jingying Zhang,Yanchun Yang,Guonan Cui,H. Alata,Yiming Wang,Chengjun Zhu
Substitution of Zn 2+ ionic by Co 2+ ionic is known to suppress the cation disorder of Cu 2 ZnSn(S,Se) 4 thin films , which is helpful to obtain the excellent Cu 2 ZnSn(S,Se) 4 solar cell devices. In our work, the extra trace Co incorporation was added in the solution without affecting the compositions of other elements (i.e. Cu, Zn, and Sn) to enhance the electrical properties of Cu 2 ZnSn(S,Se) 4 thin films . And Co incorporation does not enter into the lattice nor be found in the selenized films after taking effect, but increases the crystallinity , compactness, carrier concentration, and electrical properties of Cu 2 ZnSn(S,Se) 4 thin films samples. By tuning the doping ratios of Co 2+ ionic, the surface roughness of the selenized films can be decreased from 110.2 nm (0 mol %) to 68.90 nm (5 mol %). As 1 mol % of Co 2+ ionic is doped, the carrier concentration of films can be also improved to 4.35 × 10 17 cm −3 from 2.63 × 10 16 cm −3 , and average surface current of films applied 1 V AC voltage can be increased from 2.426 nA to 4.454 nA. The enhanced properties of Co-incorporated films brings hope for the excellent performance of Cu 2 ZnSn(S,Se) 4 solar cells.
研究领域:
材料科学
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光伏技术
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半导体薄膜
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可再生能源
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DRUG DELIVERY
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2019
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IF 3.829
Weiping Cui,Hanqing Zhao,Chen Wang,Yao Chen,Cong Luo,Shenwu Zhang,Bingjun Sun,Zhonggui He
Self-nanoemulsifying drug delivery system (SNEDDS) have been considered as a promising platform for oral delivery of many BCS (biopharmaceutics classification system) class IV drugs, such as docetaxel (DTX). However, oral chemotherapy with DTX is also restricted by its active P-glycoprotein (P-gp) efflux and hepatic first-pass metabolism. To address these challenges, we developed a novel SNEDDS co-loaded with DTX and cyclosporine A (CsA) to achieve effective inhibition of P-gp efflux and P450 enzyme metabolization, improving oral bioavailability of DTX. The SNEDDS showed uniform droplet size of about 30 nm. Additionally, the prepared SNEDDS exhibited a sequential drug release trend of CsA prior to DTX. The intestinal experiments confirmed that the membrane permeability of DTX was significantly increased in the whole intestinal tract, especially in the jejunum segment. Furthermore, the oral bioavailability of co-loaded SNEDDS was 9.2-fold and 3.4-fold higher than DTX solution and DTX SNEDDS, respectively. More importantly, it exhibited a remarkable antitumor efficacy with a reduced toxicity compared with intravenously administered DTX solution. In summary, DTX-CsA co-loaded SNEDDS is a promising platform to facilitate oral docetaxel-based chemotherapy.
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ENERGY CONVERSION AND MANAGEMENT
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2026
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IF 10.9
Shiying Yang,Fan Jiao,Xiaotong Fan,Lixinyu Mei,Xiaojing Shi,Qibin Liu
Methane carbon cyclic reforming (MCCR) represents a novel dry methane reforming (DMR) reaction, offering advantages in terms of greenhouse gas utilization and automatic product separation. This study dedicated to exploring the potential of the MCCR method for continuous and long-term production of H 2 and CO fuels. Using a self-synthesized Ni/Al 2 O 3 catalyst, we elucidated at the microscopic level the advantages of directional conversion of carbon and hydrogen elements during the MCCR process, as well as its underlying mechanism. Through in-situ testing and microscopic characterization, it was confirmed that the decoupling of the MCCR reaction can suppress side reactions, and prevent excessive graphitization of carbon deposits and promote their removal by switching reaction mechanisms promptly. The long-term continuous fuel production experiment was conducted at the macroscopic level for validating these findings. The catalyst’s stability was confirmed by 2750 min of continuous TGA cycling tests, maintaining a carbon removal ratio of 99.99% after 250 cycles. This performance was further validated in a fixed-bed reactor, where an average H-C ratio of 1.13 was sustained over 40 cycles during a 20-hour long-term test. This research paves the way for the advancement of MCCR technology and complements conventional DMR methods for the production of clean fuel.
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2026
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IF 6.6
Siyuan Chu,Lijia Chen,Wenjie Zhang,Huaiyue Sun,Xiaoyu Du,Zhengquan Wang,Xichang Wang,Jian Zhong
Nutrients co-encapsulation is a significant research focus in functional foods. This study developed a method to co-encapsulate fish oil and curcumin (Cur) using bovine bone gelatin (BBG)-chitosan (CS) complex coacervation, followed by freeze-drying with maltodextrin (MD) as a drying aid. The results confirmed that the successful encapsulation of fish oil/Cur droplets in the powder particles. As the MD/BBG mass ratios increased (0–8), several trends were observed for the powders: the oil loading capacity decreased progressively (17.7%–2.7%), oil encapsulation yields increased and then decreased (54.1%–27.9%), oil encapsulation efficiencies exponentially increased (75.6%–92.9%), Cur loading capacities exponentially decreased (0.82%–0.24%), Cur encapsulation yields exponentially increased (63.7%–85.9%), Cur encapsulation efficiencies linearly decreased (79.8%–73.4%), and peroxide values during the oxidative stability process logistically increased (19.5–44.5 mmol/kg oil at 1 h). During simulated small intestinal digestion, an MD/BBG mass ratio of 5 resulted in the highest percentage (92.8%) among all ratios tested (0–8). These results suggested fish oil can act as an effective carrier for Cur in functional powders, and that miscible nutrients can be co-encapsulated within complex coacervates. This work provided an efficient strategy for developing raw materials with co-encapsulated nutrients for functional foods and contributed to understanding the underlying mechanism of the multi-nutrient co-encapsulation.
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CERAMICS INTERNATIONAL
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2026
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IF 5.6
Dongxu Wang,Miao Pan,Wen-Jie Chen,Zhibin Cheng,Xiaoyang Pan
Novel CaCu 3- x Zn x Ti 3.95 Zr 0.05 O 12 (CCZTZO, x = 0.025 - 0.1) ceramics were synthesized via a sol-gel route to optimize the intrinsic dielectric limitations of CaCu 3 Ti 4 O 12 (CCTO). Systematic investigation of Zn 2+ and Zr 4+ co-doping effects and annealing temperature variations (900 - 1050 °C) on microstructure and dielectric characteristics revealed: XRD analysis confirmed phase-pure CCZTZO crystallization with complete elimination of secondary phases after organic binder removal via re-sintering at 1000 °C. SEM and XPS characterizations validated successful dopant incorporation, demonstrating a monotonic reduction in grain size with increasing Zn 2+ content. Impedance spectroscopy revealed enhanced electrical resistance and substantially reduced dielectric loss tangent (tanδ) while maintaining high dielectric constants (ε′). Optimal performance was achieved in CaCu 2.9 Zn 0.1 Ti 3.95 Zr 0.05 O 12 (CCZTZO-4), exhibiting an low tanδ of 0.002 with high ε′ ≈ 1.27 × 10 3 . Furthermore, excellent frequency stability was observed across 10 2 Hz - 10 5 Hz, with ε′ maintained at ∼10 3 and tanδ consistently between 0.002 - 0.054. Temperature-dependent measurements revealed outstanding thermal stability with a relative permittivity coefficient Δε′/ε′ 25°C ≤ ±10 % over − 60 °C to 120 °C. Analysis of electrical modulus and impedance spectra indicated modified activation energies for both bulk and grain boundary responses, demonstrating that Zn 2+ and Zr 4+ co-doping effectively enhances the interfacial polarization mechanism in CCTO-based ceramics.
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Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·172
·
IF 36.3
Qi Yanan,Chen Hongqiu,Hong Feng,Cai Xiangbin,Ying Zhehan,Diao Jiangyong,Jia Zhimin,Chen Jiawei,Wang Ning,Xiang Shengling,Chen Xiaowen,Wen Guodong,Sun Bo,Sun Geng,Liu Hongyang
We successfully fabricated an atomically dispersed dual-atom catalyst featuring Pt 1 -Ru 1 sites anchored on defective graphene (Pt 1 Ru 1 /ND@G).
Pt 1 Ru 1 /ND@G achieves a high turnover frequency of 17.6 × 10 −2 s −1 for CO oxidation at 30 °C, which is 10 times higher than Pt 1 /ND@G and demonstrates outstanding performance compared with the previous reports.
Pt-Ru bond enhances the metallicity of both Pt and Ru atoms, facilitating the simultaneous adsorption and activation of CO and O 2 and overcoming the limitations of single-atom catalysts.
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DOI
PubMed
高影响因子
Carbon Neutrality
·
2026
·Vol. 5
·期 1
·4
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IF 12.5
Wang Shaona,Yang Yang,Xu Wenqing,Bai Zhuoshu,Su Fabing,Wang Yixi,Bai Dingrong,Zhu Tingyu
As an integrated CO 2 capture and utilization (ICCU) process, direct electrochemical reduction of amine captured-CO 2 reduction reaction (cCO 2 RR) has enormous advantages in energy efficiency and operating cost. The low product selectivity is an urgent issue. Here, we found that the hydroxyl (-OH) on CeO 2 can significantly enhance CO selectivity. After hydroxyl modification, the CO faraday efficiency (FE CO ) was surprisingly increased by 188% (relative increase rate). The correlation coefficient between -OH quantity and FE CO is as high as 0.98. Further study indicated that the presence of -OH can lead to a more compact electrochemical double layer (EDL) and charge transfer resistance by proton transfer. The -OH can also enhance CO 2 adsorption and stabilize the intermediate species (*COOH). DFT results further demonstrate that the rate-determining step was proton transfer from the surface -OH to MEACOO − , -OH modification can reduce the energy barrier to as low as 0.39 eV. This work provides additional insights into improving selectivity in amine-based cCO 2 RR, advancing the development of ICCU technology.
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ACS Applied Materials & Interfaces
·
2026
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IF 7.8
Yuying Wang,Kun Zhao,Xing Zhu,Langlang Qin,Hengyu Wei,Jiayi Wu,Yuxuan Xu,Binhong Zhao,Shuang Wang,Yunfei Gao,Fuchen Wang,Minghui Zhu
Developing earth-abundant catalysts for low-temperature carbon monoxide (CO) oxidation is important for next-generation emission control, particularly in industrial scenarios where precious-metal catalysts face cost and stability constraints. Here, we report an “inverse” catalyst architecture in which LaMn0.6Cu0.4O3 (LMCO) perovskite is integrated with CuOx-derived phases to form 80Cu-LMCO. The catalyst reaches a T90 of 60 °C for CO oxidation, outperforming conventional perovskite and copper oxide catalysts under comparable conditions. Unlike previously reported CuOx or perovskite catalysts, this system uses an inverse CuOx/perovskite architecture to spatially separate O2 activation from CO adsorption while coupling these processes through interfacial active-oxygen transport. In situ spectroscopy, 18O2 isotopic-exchange experiments, and density functional theory (DFT) calculations further support this pathway by showing that LMCO activates oxygen and provides labile oxygen species, whereas reduced Cu-containing phases provide CO adsorption sites and mediate oxygen transfer toward interfacial Cu+ species. This active-oxygen transport pathway provides a mechanistic basis for designing robust, low-cost catalysts for low-temperature oxidation reactions.
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Solar RRL
·
2026
·Vol. 10
·期 11
·e70386
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IF 4.8
Shiliang Xiao,Chunxu Xiang,Yize Li,Yuanyuan Zheng,Xinyu Li,Na Zhao,Haoyu Guo,Youyou Yuan,Shaoying Wang,Weibo Yan,Hao Xin
Kesterite Cu 2 ZnSn (S,Se) 4 (CZTSSe) solar cells, as an emerging class of inorganic photovoltaics, offer promising application prospects owing to their earth-abundant and environmentally benign constituent elements, as well as a high theoretical power conversion efficiency. However, the relatively low majority carrier concentration, detrimental band tailing induced by bulk Cu–Zn disorder defects, and severe interface recombination limit further improvement in device efficiency. In a dimethyl sulfoxide (DMSO) solution system, extrinsic cation doping with Li + and Cd 2+ was introduced to optimize both bulk and interfacial properties of the CZTSSe absorber. The results show that the co-incorporation of Li and Cd into the absorber significantly improves its crystallinity, reduces defect density, and suppresses band tailing states, while simultaneously enhancing the hole carrier concentration of CZTSSe. Furthermore, Li + Cd co-doping results in more favorable conduction band offset (CBO) at CZTSSe/CdS heterojunction interface compared to the control group, which effectively reduces carrier recombination and enhances carrier collection efficiency, achieving a power conversion efficiency of 14.2% for the champion device.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 22
·1786
·
IF 3.2
Li Qing,Guo Kaixin,Liu Bowang,Zhang Xin,Cui Ruirui,Wang Xu,Deng Chaoyong
Lead-free halide double perovskites are attractive luminescent materials owing to their low toxicity and structural stability, but their white-light performance is often limited by weak long-wavelength emission and inefficient energy regulation. Herein, Sb 3+ single-doped and Sb 3+ , Mn 2+ co-doped Cs 2 NaLuCl 6 phosphors were synthesized by a hydrothermal method. Sb 3+ introduces broadband blue emission associated with localized excited states, while Mn 2+ incorporation produces orange-red emission through the 4 T 1 → 6 A 1 transition. The coexistence of these two emission components enables tunable dual-emission and single-host white-light generation. Time-resolved PL analysis confirms the shortening of the Sb 3+ -related lifetime after Mn 2+ incorporation, and the energy-transfer efficiency reaches 31.25% for the optimized Cs 2 NaLuCl 6 : 0.005Sb 3+ , 0.05Mn 2+ sample. Temperature-dependent PL and Arrhenius analysis reveal improved thermal-quenching resistance, with the activation energy increasing from 0.13777 to 0.21293 eV. The optimized phosphor-based WLED exhibits neutral-white emission with CIE coordinates of (0.3287, 0.3565), a CCT of 5688 K, and a CRI of 72.4. These results provide insight into emission regulation and energy-transfer dynamics in Sb 3+ , Mn 2+ co-doped Cs 2 NaLuCl 6 phosphors for proof-of-concept white-light and optical anti-counterfeiting applications.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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IF 9.1
Qingping Xin,Yufei Wang,Wei Huang,Shuo Li,Xingwei Wang,Jiaxin Wu,Dengdi Wu,Mengke Wang,Huiguo Wang,Ningning Gao,Xiaoli Ding,Yuzhong Zhang
Two-dimensional (2D) lamellar membranes with sub-nanometer channels hold promise for precise gas separation, but tuning interlayer spacing at the sub-angstrom scale while synergizing solution-diffusion and molecular sieving remains challenging. Here we report the confinement of an ionic liquid (IL), 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF 4 ]), within the galleries of few-layer Al@Ti 3 C 2 T x nanosheets to create ionic liquid-confined lamellar MXene membranes (Al@Ti 3 C 2 T x -ILLMMs). The residual Al 3+ species in the nanosheets stabilize the interlayer architecture through electrostatic interactions, while the abundant surface terminations (-F, -OH) render the nanosheets negatively charged, promoting uniform IL distribution. By precisely controlling the IL loading via an equilibration–spin-coating approach, the interlayer spacing is continuously tunable from 0.309 to 0.375 nm. The optimal channel height of 0.342 nm lies within the gap between the kinetic diameters of CO 2 (0.33 nm) and N 2 (0.36 nm), closer to that of CO 2 . This precision engineering shifts the gas transport mechanism from Knudsen diffusion to a coupled solution-diffusion and size-sieving regime. The resulting membrane achieves a CO 2 permeance of 150 GPU and a CO 2 /N 2 selectivity of 128.5, representing 4.5-fold and 109-fold improvements over the pristine MXene membrane and offering a favorable balance compared to reported IL-supported membranes. The demonstrated quantitative loading-spacing correlation provides a designable platform for sub-angstrom channel engineering in 2D material membranes.
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