ACS Applied Materials & Interfaces
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2019
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IF 8.456
Zheng Ma,Jingdan Lei,De Zhang,Chao Wang,Jianli Wang,Zhenxiang Cheng,Yuanxu Wang
SnTe has attracted more and more attention due to the similar band and crystal structure with high performance thermoelectric materials PbTe. Here, we introduced Pd into SnTe and the valence band convergence was confirmed by first-principles calculation. In the experimental process, we found that Pd-doped SnTe exhibit a reduced thermal conductivity because of softening chemical bonds and grain refining effects. To further improve the thermoelectric performance, Pd–In codoped SnTe samples were prepared, and the abnormal change of thermal conductivity was observed. The results of synchrotron powder diffraction suggest that the local phase transition (local structural distortions) near 400 K results in the first turn on thermal conductivity. Similarly, the second local phase transition in near 600 K observed by neutron powder diffraction lead to a decrease thermal conductivity of the sample. Finally, a peak thermoelectric figure of merit (ZT) ≈ 1.51 has been obtained in Sn0.98Pd0.025In0.025Te at 800 K.
研究领域:
材料科学
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热电学
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固态物理
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晶体学
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2023
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IF 10.9
Shaoyang Shen,Wenfang Liao,Zhijie Cao,Jiangwen Liu,Hui Wang,Liuzhang Ouyang
MgH 2 , as one of the typical solid-state hydrogen storage materials, has attracted extensive attention. However, the slow kinetics and poor cycle stability limit its application. In this work, LiBH 4 and YNi 5 alloy were co-added as additives to MgH 2 via ball milling, thereby realizing an excellent dehydrogenation performance and good cycle stability at 300 °C. The MgH 2 -0.04LiBH 4 -0.01YNi 5 composite can release 7 wt.% of hydrogen in around 10 min at 300 °C and still have a reversible hydrogen storage capacity of 6.42 wt.% after 110 cycles, with a capacity retention rate as high as 90.3 % based on the second dehydrogenation capacity. The FTIR results show that LiBH 4 can reversibly absorb and desorb hydrogen throughout the hydrogen ab/desorption process, which contributes a portion of the reversible hydrogen storage capacity to the MgH 2 -0.04LiBH 4 -0.01YNi 5 composite. Due to the small amount of LiBH 4 and YNi 5 , the dehydrogenation activation energy of MgH 2 did not decrease significantly, nor did the dehydrogenation enthalpy (∆ H ) change. However, the MgNi 3 B 2 and in-situ formed YH 3 during the hydrogen absorption/desorption cycles is not only beneficial to the improvement of the kinetics performance for MgH 2 but also improves its cycle stability. This work provides a straightforward method for developing high reversible hydrogen capacity on Mg-based hydrogen storage materials with moderate kinetic performance.
研究领域:
材料科学
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氢气储存
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能量存储
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固态化学
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DALTON TRANSACTIONS
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2012
·Vol. 41
·期 37
·11507-11518
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IF 3.838
Minfeng Lü,Xiaolong Deng,João C. Waerenborgh,Xiaojie Wu,Jian Meng
The n = 1 Ruddlesden–Popper (RP) phases LaSrM0.5Ru0.5O4±δ (M = Co, Ni and Zn) have been prepared by solid state reactions and structurally characterized by powder X-ray and electron diffraction. All the samples adopt the tetragonal I4/mmm space group with random M and Ru cation occupation on the B-sites. The potential causes of no cation ordering are discussed. A combined analysis of the tolerance factors, the distortion of the octahedral coordination of M and Ru cations and the magnetic interactions between M and Ru cations provide a better understanding for forming a phase with 3D cation ordering on the B-sites in the n = 1 RP phases. The investigation of XPS spectra suggests that the transition element species exist as mixed ion pairs, Ru(4−δ)+–Ru4+ ↔ Co2+–Co3+ in LaSrCo0.5Ru0.5O4, and Ru4+–Ru(4+δ)+ ↔ Ni+–Ni2+ in LaSrNi0.5Ru0.5O4, which is consistent with cation disorder over the B sites. LaSrCo0.5Ru0.5O4 shows a weakly ferromagnetic behaviour below 50 K; LaSrNi0.5Ru0.5O4 is evidenced by the presence of long-range magnetic ordering at a Néel temperature of 125 K, and LaSrZn0.5Ru0.5O4 exhibits a paramagnetic behaviour down to 5 K. Due to atomic disorder, Ru4d, O2p covalent coupling is weakened, strengthening the intraatomic spin–spin coupling among the π* electrons. Charge transfer between Ru and Co or Ru and Ni, as well as the increasing overlap of both nearest-neighbour and next-nearest-neighbour Ru 4d electrons due to atomic disorder, favour the formation of ferromagnetic interactions. Although antiferromagnetism is dominant, particularly in LaSrNi0.5Ru0.5O4, ferromagnetic interactions are stronger in the title compounds than in the related La2MRuO6 (M = Co, Ni) double perovskites where the B-site cations are ordered.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Jing Fan,Jingfan Huang,Fenhong Song,Nan He,Xu Wang
Efficient carbon capture technologies are crucial for mitigating climate change amid escalating CO₂ emissions. Traditional solvents like monoethanolamine (MEA) suffer from limitations such as high energy consumption and degradation. This study synthesized eight novel phase-change deep eutectic solvents (DESs) via a one-step process, combining 2-amino-2-methyl-1-propanol (AMP) as hydrogen bond donor (HBD) with acetamide, tetraethylammonium chloride, tetrabutylammonium bromide, and tetrabutylphosphonium bromide as hydrogen bond acceptors (HBAs) at 1:4 and 1:6 ratios. It addresses the critical challenge of developing absorbents concurrently featuring high CO₂ capacity, excellent stability, and environmental benignity. DES density decreased linearly while viscosity declined exponentially with temperature, with negligible toxicity as predicted by ECOSAR. Acetamide-based DESs exhibited the highest thermal stability (132.67 °C). Dual absorption mechanisms were observed: chemical reaction dominated at low pressures (0–0.2 MPa), while physical absorption governed by Henry's law prevailed at high pressures (0.2–0.7 MPa). The acetamide/AMP (1:6) DES achieved a maximum capacity of 3.29 mol·kg −1 at 323.15 K, significantly outperforming MEA. Cyclic absorption-desorption experiments confirmed the excellent regenerability of the solvents, particularly the acetamide-based DES, which maintained a regeneration efficiency of over 80% after three cycles. Fourier Transform Infrared Spectroscopy (FTIR) confirms the occurrence of chemical reactions during the absorption process. When deep eutectic solvents absorb CO₂, insoluble carbamates are formed, which leads to phase change. Phase-change deep eutectic solvents are promising candidates for next-generation materials in the field of efficient and sustainable industrial CO₂ capture.
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ACS Applied Bio Materials
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2026
·
IF 4.7
Jingjie Zhang,Yanmin Chen,Zhenyi Lin,Changhua Xu,Lijuan Zhu,Chuan Zhang
Androgenetic alopecia (AGA), a prevalent form of hair loss primarily affecting younger individuals, remains a significant therapeutic challenge due to the lack of effective treatments. The pathogenesis of AGA is driven by the interaction between androgen receptors (AR) and androgens, as well as by dysregulation of the follicular ecological niche resulting from excessive reactive oxygen species (ROS) and insufficient vascularization in the perifollicular microenvironment. Given the multifactorial nature of AGA, a multi-target therapeutic strategy, rather than a single-target approach, has emerged as a promising method to enhance treatment efficacy. In this study, we developed nanoliposomes (NLPs) formulation by self-assembling AR-PROTAC (ARV110) and NFKBIZ siRNA (siNFKBIZ) into nanoparticles, followed by surface modification with liposomes. This design simultaneously targets AR degradation and alleviates oxidative stress, thereby improving the follicular microenvironment and promoting hair regrowth. The NLPs formulation effectively addresses the challenge of delivering payloads to keratinocytes (HaCaT), facilitates efficient skin penetration, scavenges excess ROS, and inhibits the inflammatory response in hair follicles. Additionally, NLPs downregulate AR protein expression to modulate hair growth-associated signaling pathways, achieving a multimodal synergistic therapeutic effect for AGA. Our design offers an effective multi-target strategy for AGA, resulting in enhanced therapeutic effects for hair loss treatment.
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PubMed
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 3.7
Yuhuan Lin,Linlin Su,Wei Hu,Ziyan Niu,Min Xu,Li Dai,Yutao Gao,Gang Yang,Lulu Long
The persistent challenge of antibiotic contamination in water necessitates efficient catalytic systems for peroxymonosulfate (PMS)-based advanced oxidation processes. While cobalt-based catalysts derived from ZIF-67 metal-organic frameworks and conventional core-shell structures like SiO 2 coatings offered limited physical encapsulation, they failed to prevent intra-particle agglomeration and adequately suppress Co ions leaching. Drawing inspiration from the dual-shell defense mechanism of the nacre structure, which combined physical and chemical mechanisms, this study constructed a Co 3 O 4 /C@MnSiO 3 (CCMS) nacre-mimetic nanostructured catalyst by converting the mesoporous SiO 2 on the surface of ZIF-67 into MnSiO 3 . The unique architecture effectively suppressed nanoparticle aggregation within individual ZIF-67 through physical encapsulation and bimetallic interaction, dispersed the active sites, reduced Co 2+ leaching, and enhanced catalytic activity. Compared to Co 3 O 4 /C (CC) and Co 3 O 4 /C@SiO 2 (CCS), the CCMS/PMS system significantly improved tetracycline degradation (1.4 and 2.3 times higher kinetic constants) and maintained 75% removal efficiency after five cycles. This study constructed a nacre-mimetic structure achieving highly efficient and stable catalysis, meanwhile providing novel strategies for optimizing MOF-based catalytic materials.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 2
·181
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IF 2.8
Zhang Yangfan,Wang Lixian,Zhu Zhe,Chang Ruiling,Yao Zhonghua,Hao Hua,Cao Minghe,Zhang Wen,Liu Hanxing
Piezoelectric ceramic materials are widely employed in actuation and sensing applications owing to their exceptional electromechanical properties. Multilayer piezoelectric actuators (MLAs) demonstrate significant reductions in driving voltage and enhanced output performance by employing a multilayer structural design that integrates internal electrodes. In this study, a high-performance PZT-based ceramic was selected to fabricate novel Ag-cofired MLAs sintered at 920 ℃ 4 h in a dimension of 10 × 10 × 24 mm 3 . The piezoelectric, dielectric, and ferroelectric characteristics of the ceramic were systematically evaluated. The fabricated MLAs exhibited a displacement of 2 μm with minimal hysteresis (low H ~ 12%), while maintaining remarkable temperature stability (variation less than 14% within 30–100 °C), pronounced strain response ( S max ~ 0.10%), and robust fatigue resistance(strain value from 0.694 to 0.671% after 10 6 cycles). These attributes make the developed multilayer piezoelectric materials as promising candidates for precision actuation systems. The capabilities of piezoelectric actuators are expanded by low operating voltage and high force amplitude, rendering them suitable for a wider range of control applications.
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Journal of Water Process Engineering
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2026
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IF 6.7
Junchi Wei,Haoran Chen,Daotong Zhao,Jinlong Wang,Miao Zhang,Lei Miao
Bioaugmentation can effectively improve biodegradation of recalcitrant compounds through adding specific substances or microbial consortia. In this study, a small quantity of co-metabolic sludge was introduced to conventional anaerobic sludge system (with a ratio of 1:4 between co-metabolic sludge to conventional anaerobic sludge), and enhancement effect on ceftriaxone sodium (CTX) biodegradation was investigated. The addition of co-metabolic sludge significantly improved CTX removal efficiency in anaerobic sludge system (with an average increase of 20.6 %), and the maximum removal of CTX reached 60.8 %. Co -metabolic sludge also elevated extracellular polymeric substance (EPS) secretion, increasing protein and polysaccharide contents by 34.66 % and 40.64 %, respectively, which mitigated CTX toxicity. Compared to conventional sludge, the system after bioaugmentation exhibited 4.3 % and 2.5 % increases in enzyme diversity and microbial population, respectively. Relative abundances of resistance genes evgS, NmcR, and Burkholderia pseudomallei Omp38 increased by 2.8 %, 7.6 %, and 2.5 %, respectively, which benefited improving CTX degradation. Furthermore, the abundances of pathways Two-component system (TCS) and Quorum sensing (QS) increased by 20.0 % and 21.7 %, respectively, indicating their involvement in bioaugmentation-mediated CTX degradation. Overall, this study strengthens CTX degradation in conventional sludge system with addition of some co-metabolic sludge, which provided a novel strategy for CTX wastewater treatment.
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Food & Function
·
2026
·
IF 5.4
Wei Liao,Ronghai Hu,Huan Liu,Jielun Hu
Probiotics have shown considerable health benefits, especially concerning gastrointestinal health, however, environmental stress during production and transit through the gastrointestinal digestive system will adversely impact their viability. This study aimed to explore the protective effects of co-encapsulating highland barley β-glucan (HBBG) with probiotics on cell bioavailability during gastrointestinal digestion. The incorporation of HBBG (0.5% w/w) significantly improved probiotic viability and enhanced microcapsule morphology during spray drying. Both in vivo and in vitro gastrointestinal digestion assays demonstrated superior probiotic survival rates (>8.5 Log CFU/g) within HBBG-containing microcapsule samples. Furthermore, the production of short-chain fatty acids, particularly acetic acid reached 9.22 mM) and the growth of beneficial gut microbiota (e.g., Lactobacillus and Bifidobacterium) were both enhanced significantly. The findings highlighted the prominent prebiotic potential of HBBG and its synergistic role in improving probiotic stability and functionality during gastrointestinal digestion.
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PubMed
高影响因子
Materials Today Bio
·
2026
·
IF 10.2
Huanyu Li,Chuanyu Zhang,Ziwei Yang,Yifan Li,Dan Liu,Yanan Zhang,Lingmin Zhang,Ning Wang,Mingxin Zhang,Mingzhen Zhang,Zhaoxiang Yu,Xueyong Wei,Yujie Zhang
Background Ulcerative colitis (UC) is a common type of inflammatory bowel disease, where the vicious cycle of inflammation and oxidative stress poses a major challenge in its treatment, and existing therapies have limitations. Berberine (BBR) and curcumin (CUR) have the potential for synergistic treatment of UC, but this potential has not been verified in UC. Additionally, both BBR and CUR suffer from poor water solubility and low bioavailability. This study aims to construct prebiotic microcapsules (BBR/CUR@MC) for the co-delivery of BBR and CUR and explore their therapeutic mechanism in UC. Methods Network pharmacology was used to predict the targets and pathways of BBR and CUR in UC. BBR/CUR@MC was prepared using microfluidic electrospray technology, and its colon targeting and biocompatibility were evaluated through in vivo experiments. In a Dextran sulfate sodium (DSS)-induced UC mouse model, the therapeutic effect was assessed using multiple indicators, and the mechanism of action was explored by transcriptome analysis. Results Network pharmacology showed that BBR and CUR can exert therapeutic effects on UC through synergistic regulation of TNF and AGE-RAGE signaling pathways. The successfully constructed BBR/CUR@MC had good colon targeting and biocompatibility. In the mouse colitis model, oral administration of BBR/CUR@MC inhibited ADAM17 in the TNF signaling pathway and MAPK11/13, COL4A1, and COL1A1 in the AGE-RAGE signaling pathway, thereby downregulating pro-inflammatory cytokines such as TNF-α and IL-1α, upregulating IL-10, scavenging ROS, significantly alleviating colonic inflammation and repairing the intestinal barrier in mice, with a therapeutic effect superior to that of single-drug microcapsules and 5-ASA. Conclusion BBR/CUR@MC can exert synergistic anti-inflammatory and antioxidant effects in UC treatment by regulating TNF and AGE-RAGE signaling pathways, providing a new multi-mechanism therapeutic strategy for UC.
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PubMed
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DIAMOND AND RELATED MATERIALS
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2026
·
IF 5.1
Luyu Ji,Meilin Zhang,Hanzhong Cui,En Zhang,Jin Zhang
The properties of biomass porous carbon materials are important for supercapacitor energy storage devices. This study presents a novel B and N co-doped hierarchical porous carbon (BPC) synthesized from chitosan via a facile K 2 CO 3 activation strategy. The chitosan precursor was pretreated to enhance its suitability for carbonization, resulting in a highly conductive carbon skeleton with a developed hierarchical porous structure and a specific surface area of 507 m 2 /g. The effects of B and N element doping on the surface morphology and electrochemical properties of BPC were investigated. The electrochemical properties of the materials were characterized using cyclic voltammetry, galvanostatic charge-discharge tests, and impedance spectroscopy. The optimized sample (CBP-1) demonstrated exceptional electrochemical performance: achieving a specific capacitance of 527 F g −1 at 4.5 A g −1 and exhibiting outstanding cycling stability with 84% capacitance retention after 10,000 charge/discharge cycles at 10 A g −1 . Electrochemical impedance spectroscopy confirmed superior interfacial properties with a low equivalent series resistance (R s ) of 1.19 Ω. Chitosan distinguishes itself from other biomass materials by its rich -NH 2 groups, which allow for effective nitrogen self-doping. This intrinsic advantage translates into enhanced conductivity and wettability for BPC, contributing to its improved electrochemical performance. B and N co-doping creates structural defects that facilitate electrolyte penetration and shorten ion diffusion paths while providing pseudo capacitance. Chitosan-based B and N co-doped hierarchical porous carbon is a promising capacitor-modified electrode material with potential applications in energy storage.
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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2026
·
IF 4.6
Fangzhou Wu,Yonglei Xing,Huijuan Liu,Xiaoyong Jin,Gang Ni
Peroxymonosulfate (PMS)–based advanced oxidation processes (AOPs) are promising for pollutant removal, whereas metal-doped carbons risk ion leaching. Here we report a metal-free selenium–nitrogen co-doped porous carbon (Se–N/C) that efficiently activates PMS for phenol (Ph) degradation. Selenium was chosen for its larger atomic radius and high polarizability, which modulate electronic structure and create active sites. Se–N/C achieved complete removal of parent Ph (Ph peak disappearance) within 10 min with a total organic carbon (TOC) reduction of 52 %, and a pseudo-first-order rate constant about twentyfold higher than nitrogen-doped carbon. Radical scavenging tests and electron paramagnetic resonance (EPR) confirm a dual pathway involving radical (O 2 •− ) and non-radical ( 1 O 2 ) species. Density functional theory (DFT) indicates that co-doping tailors the electronic configuration, strengthens PMS adsorption (adsorption energy −3.07 eV), and enhances electron transfer. The catalyst remains active in the presence of common anions (SO 4 2− , Cl − , NO 3 − , and H 2 PO 4 − ) and humic acid, evidencing environmental tolerance. X-ray photoelectron spectroscopy and Raman spectroscopy identify graphitic nitrogen and C–Se–C as key centers, while selenium's antioxidative character supports cycling stability. This work provides a scalable, environmentally benign route for wastewater treatment and clarifies structure–activity relationships in PMS activation.
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危险品化学品经营许可证（带存储）