Science Advances
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2025
·Vol. 11
·期 19
·
IF 12.5
Li Zhang,Tianxiang Yang,Zhenyi Zhao,Zhi Wang,Shihong Lin,Song Zhao
Pressure-driven distillation (PD), as an emerging technology, holds tremendous potential for producing freshwater from nontraditional water sources. In this process, a sufficient hydraulic pressure is applied to drive water evaporation and vapor transport across a vapor-gap membrane. The development of the PD process critically depends on the availability of robust and large-area superhydrophobic membranes. Here, we propose an ultraselective superhydrophobic thin-film composite (TFC) vapor-gap membrane with confined transport channels toward the PD process, which can be manufactured scale-up through a facile swelling–assisted deposition strategy. The TFC-PD membrane demonstrates separation capabilities, achieving near-complete rejections of nonvolatile solutes, including salts, boron, and urea. Featured by a vapor-gap superhydrophobic layer, the TFC-PD membrane exhibits superior chlorine and scaling resistance and maintains stable performance over time without being oxidized or scaling. This work offers notable advancements in the microstructural design of PD membranes and the development of scalable robust TFC membranes for the PD process.
研究领域:
环境科学
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材料科学
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水资源工程
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Chunlei Zhao,Yilin Zhang,Jianming Tao,Zhicong Liu,Liang Zhao,Fiaz Hussain,Jiuwei Lei,Pengcheng Yu,Hailun Jin,Wen Tang,Haochang Zhang,Pushun Lu,Shuaika Liang,Caijin Xiao,Shuo Wang,Yusheng Zhao,Wei Xia
Lithium-metal-chloride (Li-M-Cl) ionic conductors, with the high Li + conductivity, excellent cathode compatibility, and favorable mechanical properties, have emerged as a promising solid electrolyte (SE) candidate for all-solid-state batteries (ASSBs). However, their poor compatibility with lithium anodes, due to the presence of high-valence M species that are highly susceptible to reduction reaction, remains a major challenge. In this study, a strategic modification of the central metal's electronic structure is presented to enable controlled modulation of the orbital gap, thereby tuning its resistance to reduction. By incorporating lanthanide elements (Ho and Lu) at the M sites, which can effectively increase the orbital gap of the metal-centered polyhedra, improving the reduction stability of the solid electrolytes. As proof of concept, a series of new Li-M-Cl halide superionic conductors is synthesized that exhibit excellent compatibility with Li anodes. ASSBs utilizing these newly developed SEs as a single electrolyte layer achieve outstanding cycling stability, retaining up to 80.1% of their capacity after 500 cycles at 1 C. This study offers an effective strategy to address the challenge of anode incompatibility in halide SEs, advancing the development of high-energy-density ASSBs.
研究领域:
材料科学
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电化学
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固态离子学
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能源存储
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无机化学
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2020
·
IF 4.089
Rui Wang,Fei Jia,Xuan Li,Ling Chen,Li-Ming Wu
The binary Bi/Se system with the general formula [Bi2]m[Bi2Se3]n exhibits intriguing properties, such as topological insulator and thermoelectric properties, and attracts intense attention. Herein, we found that the thermoelectric properties of BiSe at elevated temperatures have been deteriorated, because of the strong bipolar diffusion effect caused by its small band gap. Subsequently, with the aid of the crystal structure engineering strategy, we purposely involve less metallic [Bi2] layers in the crystal structure, and successfully synthesize a new n-type Bi8Se9 and investigate, for the first time, its thermoelectric properties. Bi8Se9 exhibits a significantly widened band gap from 0.085 eV in BiSe to 0.146 eV that effectively reduces the bipolar thermal conductivity from the 0.37 W m–1 K–1 in BiSe to 0.14 W m–1 K–1. As a result, Bi8Se9 realizes a balance between the electrical resistance, the Seebeck coefficient, and a lower thermal conductivity, and achieves a ZT value of 0.40 at 673 K, which is twice that of BiSe at 673 K.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 10
·1626
·
IF 5.719
Ming Chen,Bin Wang,Jingfan Wang,Hongliang Liu,Zhixiang Chen,Xiaoxuan Xu,Xing Zhao
Gap-enhanced Raman tags (GERTs) were widely used in cell or biological tissue imaging due to their narrow spectral linewidth, weak photobleaching effect, and low biological matrix interference. Here, we reported a new kind of graphene-wrapped, petal-like, gap-enhanced Raman tags (GP-GERTs). The 4-Nitrobenzenethiol (4-NBT) Raman reporters were embedded in the petal-like nanogap, and graphene was wrapped on the surface of the petal-like, gap-enhanced Raman tags. Finite-difference time-domain (FDTD) simulations and Raman experimental studies jointly reveal the Raman enhancement mechanism of graphene. TheSERSenhancement of GP-GERTs is jointly determined by the petal-like “interstitial hotspots” and electron transfer between graphene and 4-NBT molecules, and the total Raman enhancement factor (EF) can reach 1010. Mesoporous silica was grown on the surface of GP-GERTs by tetraethyl orthosilicate hydrolysis to obtain Raman tags of MS-GP-GERTs. Raman tag stability experiments showed that: MS-GP-GERTs not only can maintain the signal stability in aqueous solutions of different pH values (from 3 to 12) and simulated the physiological environment (up to 72 h), but it can also stably enhance the signal of different Raman molecules. These highly stable, high-signal-intensity nanotags show great potential forSERS-based bioimaging and multicolor imaging.Keywords:gap-enhanced Raman tags;graphene;Raman-enhanced mechanism;stability
研究领域:
材料科学
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纳米技术
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生物医学工程
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分析化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
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2022
·
IF 4.171
Yu-Qi Sun,Jie Wang,Guang-Zhe Ma,Dong Shi
Photoluminescence is informative to other optoelectronic processes that are less directly accessible in metal halide perovskites . In this study, we conducted optical studies on CH 3 NH 3 PbBr 3 single crystals with robust cubic lattices and atomically flat surfaces. Inter-band luminescence peaking aside from the absorption cutoff was observed, and its shifts toward shorter wavelength upon cooling. Cooling the crystal below 150 K leads to the occurrence of mid-gap luminescence partly at the expense of the inter-band luminescence, which indicates bulk photoluminescence quenching by trap-mediated electronic trapping and subsequent mid-gap radiation following electronic de-trapping. Time-resolved photoluminescence probed at the mid-gap luminescence maxima shows two-stage mono-exponential traces, directly corroborating the trapping and de-trapping processes. In the presence of mid-gap luminescence at low temperatures, time-resolved inter-band luminescence demonstrates triplet decaying pathways, in sharp contrast to the doublet decaying pathways at higher temperatures in the absence of mid-gap luminescence. Time- and temperature-resolved inter-band photoluminescence gave rise to a characteristic photocarrier lifetimes evolution against temperature in a close analogy to the material's dielectric constant .
研究领域:
材料科学
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光学
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产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-9
·
IF 15.7
Wei Shilei,Hua Hang,Zhao Yuxuan,Luo Jingshan
Zero-gap membrane electrode assembly (MEA) CO 2 electrolysers offer high energy efficiency and promise for industrial application. However, the transport of carbonates within an anion exchange membrane (AEM) electrolyser leads to CO 2 loss, thereby limiting carbon utilization efficiency. Emerging acidic anolyte electrolysers using cation exchange membrane (CEM) can address this challenge but face critical stability issues, including accelerated hydrogen evolution reaction (HER) and persistent salt precipitation. Here, we propose a porous membrane (PM) as an alternative to the CEM in acidic anolyte electrolysers. The system demonstrates continuous operation at 100 mA cm −2 for 200 h without salt precipitation, while maintaining nearly 100% CO selectivity. Furthermore, large-scale device (100 cm 2 ) also shows stable performance. Mechanism analysis suggests that enhanced water permeation and bidirectional ion transfer are critical for achieving stable performance in acidic anolyte electrolysers. These findings offer a feasible approach for high-performance, stable and scalable acidic MEA CO 2 electrolysers.
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED PHYSICS
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2019
·Vol. 125
·期 7
·
IF 2.328
Jin Xiulong,He Jing,Ye Jian
Surface-enhanced Raman scattering (SERS) nanoparticles can be utilized as optical labeling nanoprobes for bioimaging with advantages of the fingerprint vibrational signal as a unique optical code and the ultra-narrow linewidth for multiplexing. As a new type of SERS nanoprobes, gap-enhanced Raman tags (GERTs) developed recently can overcome the common issues of poor photostability and limited Raman enhancement. In this work, we have constructed bright nanotriangle-based GERTs (NT-GERTs) for combined SERS bioimaging and photothermal therapy. With optimized Au shell morphology and thickness, NT-GERTs possess 20 folds brighter SERS signal and a more efficient photothermal effect compared to conventional nanosphere-based GERTs. These NT-GERTs show great potential for intraoperative SERS bioimaging guided photothermal therapy of cancers.
研究领域:
生物医学工程
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纳米医学
·
光学成像
✓ 已验证
DOI
高影响因子
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
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2015
·
IF 1.517
Jiqing Cai,Ping Zhou,Renke Kang,Kun Shan,Dongming Guo
In the electrogenerated chemical polishing (EGCP), material removal rate (MRR) is inversely proportional to the processing gap. To polish a workpiece with a large area, high and uniform MRR is necessary, which prefers a small and uniform processing gap. Based on the principle of the hydrostatic support, a novel micro-gap control method is proposed. The method uniformly controls the gap between the electrode and workpiece to a micro level over a large area. A relationship between the gap size and the inlet pressure is derived theoretically and verified experimentally. The proposed method is successfully applied to the polishing of a Cu surface with a diameter of 50 mm. Promising results are obtained that surface roughness and flatness are reduced from average roughness (Ra) 82 nm and peak-to-valley (PV) value 290 nm to Ra 4 nm and PV 120 nm, respectively.
研究领域:
精密工程
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电化学加工
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表面处理
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制造技术
✓ 已验证
DOI
高影响因子
BIOMATERIALS
·
2018
·
IF 8.806
Zhouzhou Bao,Yuqing Zhang,Ziyang Tan,Xia Yin,Wen Di,Jian Ye
The sentinel lymph node (SLN) biopsy is gaining in popularity as a procedure to investigate the lymphatic metastasis of malignant tumors. The commonly used techniques to identify the SLNs in clinical practice are blue dyes-guided visualization, radioisotope-based detection and near-infrared fluorescence imaging. However, all these methods have not been found to perfectly fit the clinical criteria with issues such as short retention time in SLN, poor spatial resolution, autofluorescence , low photostability and high cost. In this study, we have reported a new type of nanoprobes , named, gap-enhanced Raman tags (GERTs) for the SLN Raman imaging. With the advantageous features including unique “fingerprint” Raman signal, strong Raman enhancement, high photostability, good biocompatibility and extra-long retention time, we have demonstrated that GERTs are greatly favorable for high-contrast and deep SLN Raman imaging, which meanwhile reveals the dynamic migration behavior of the probes entering the SLN. In addition, a quantitative volumetric Raman imaging (qVRI) data-processing method is employed to acquire a high-resolution 3-dimensional (3D) margin of SLN as well as the content variation of GERTs in the SLN. Moreover, SLN detection could be realized via a cost-effective commercial portable Raman scanner. Therefore, GERTs hold the great potential to be translated in clinical application for accurate and intraoperative location of the SLN.
研究领域:
医学影像学
·
肿瘤学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Jingjing Liu,Mengsha Cao,Zhengdong Feng,Xiaomeng Ni,Jing Zhang,Jianhua Qiu,Shuai Zhang,Huafei Guo,Ningyi Yuan,Jianning Ding
Chemical bath–deposited cadmium sulfide (CBD-CdS) is the most widely used buffer layer material for antimony selenosulfide (Sb 2 (S,Se) 3 ) photovoltaic devices , but its medium band gap, large band gap offset with transparent conducting oxides , and surface defects must be addressed to improve its applicability. Hexagonal CdS films (60 nm thick) prepared using the thermal evaporation method were used as the buffer layers of Sb 2 (S,Se) 3 photovoltaic devices. Compared with CBD-CdS (60 nm thick), thermal evaporation–deposited CdS (TED-CdS) films have a larger band gap and fewer surface defects. The Sb 2 (S,Se) 3 film deposited on TED-CdS is more compact, and its 1D ribbons are stacked more vertically to the substrate. The band gap offset between CdS and fluorine-doped tin oxide glass decreases from 0.76 eV (CBD-CdS) to 0.60 eV (TED-CdS). Therefore, suppressed electron trap density and charge recombination, as well as improved light harvesting, are achieved. By replacing CBD-CdS with TED-CdS, the best device efficiency increases from 6.14 % to 7.16 %, with the open circuit voltage, short-circuit current density, and fill factor increasing from 0.660 V, 15.96 mA/cm 2 , and 58.37 % to 0.664 V, 17.39 mA/cm 2 , and 62.85 %, respectively. The device stability and reproducibility are also improved.
研究领域:
材料科学
·
光伏技术
✓ 已验证
DOI
高影响因子
Energy Material Advances
·
2024
·
IF 14.8
Yanbing Han,Jiao Fang,Han Zhang,Yiyang Sun,Yifang Yuan,Xu Chen,Mochen Jia,Xinjian Li,Han Gao,Zhifeng Shi
Chalcogenide perovskites represent a promising class of materials known for their robust stability, environmentally friendly composition, and intriguing optoelectronic characteristics. Their A-site cation is largely dependent on nonmagnetic Ca, Sr, Ba elements, showing little influences on the optoelectronic properties of chalcogenide perovskites. Here, by introducing magnetic element Eu as A-site cation, we present a comprehensive investigation into the crystal structures, band characteristics, optoelectronic features, and magnetic behaviors of EuHfS3, targeting for photovoltaics. EuHfS3 adopts a distorted perovskite structure within the Pnma space group. This structure allows for various magnetic configurations, setting foundations for multiple photovoltaic effect. The conduction band maximum primarily originates from the Hf 5d orbitals, akin to SrHfS3. Intriguingly, the presence of Eu spin-up 4f orbitals lifts the covalence band minimum, consequently narrowing the band gap of EuHfS3 (1.6 eV), which is suitable for absorber layer in p-i-n junction solar cells. Moreover, zero field cooled magnetization measurements reveal antiferromagnetic behavior in EuHfS3, indicating further spin photovoltaic effect. The integration of magnetic properties into chalcogenide perovskites, in conjunction with their inherent semiconducting attributes, holds promise for future advancements in photovoltaics and other spintronic device technologies.
研究领域:
材料科学
·
光电子学
·
磁学
✓ 已验证
DOI
高影响因子
Chemical Science
·
2025
·
IF 7.4
Guowei Fu,Jin Li,Qian Zhang,Changjun Lv,Zhiyang Zhang,Xiaoyan Wang,Rihui Wu,Lingxin Chen
Microsatellite instability (MSI) is a hallmark of colorectal cancer in immunotherapy, whose phenotypes mainly involve four mismatch repair (MMR) proteins (MlH1, MSH2, MSH6 and PMS2). Since these MMR proteins are highly interdependent, simultaneous detection of these proteins rather than separate detection in cancer is vital to accurately distinguish the MSI phenotypes. In this study, we fabricated four orthogonal gap-enhanced Raman tags (O-GERTs) flavors with high sensitivity, superb photostability, and completely separated interference-free signal readouts. With antibody functionalization, these multicolored O-GERTs allowed one-shot detection of these four MMR proteins in cancer tissues with high specificity and spectral resolution. Based on the quantitative Raman imaging, these cancer tissues were classified into microsatellite stable (MSS) or high-frequency MSI (MSI-H) subtypes. The detected MSI-H ratios for colorectal, breast and gastric cancers were 13.3%, 6.7% and 3.3%, respectively. Moreover, the correlation between the expression levels of these MMR proteins in colorectal cancer and related clinicopathologic parameters in these subtypes was established for the first time. We further demonstrated that MSI of cancer can serves as a tool for screening Lynch syndrome (a genetic disorder), and predicting potential candidates for immunotherapy by PD1/PD-L1 blockade. To the best of our knowledge, this is the first example of quantitative multiplexed Raman imaging for fast detection of MSI of cancer.
研究领域:
医学
·
生物化学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）