Journal of Semiconductors
·
2024
·Vol. 45
·期 3
·032703
·
IF 4.8
Xinfa Zhu,Weishuai Duan,Xiancheng Meng,Xiyu Jia,Yonghui Zhang,Pengyu Zhou,Mengjun Wang,Hongxing Zheng,Chao Fan
The emergent two-dimensional (2D) material, tin diselenide (SnSe2), has garnered significant consideration for its potential in image capturing systems, optical communication, and optoelectronic memory. Nevertheless, SnSe2-based photodetection faces obstacles, including slow response speed and low normalized detectivity. In this work, photodetectors based on SnS/SnSe2 and SnSe/SnSe2 p−n heterostructures have been implemented through a polydimethylsiloxane (PDMS)−assisted transfer method. These photodetectors demonstrate broad-spectrum photoresponse within the 405 to 850 nm wavelength range. The photodetector based on the SnS/SnSe2 heterostructure exhibits a significant responsivity of 4.99 × 103 AW−1, normalized detectivity of 5.80 × 1012 cmHz1/2W−1, and fast response time of 3.13 ms, respectively, owing to the built-in electric field. Meanwhile, the highest values of responsivity, normalized detectivity, and response time for the photodetector based on the SnSe/SnSe2 heterostructure are 5.91 × 103 AW−1, 7.03 × 1012 cmHz1/2W−1, and 4.74 ms, respectively. And their photodetection performances transcend those of photodetectors based on individual SnSe2, SnS, SnSe, and other commonly used 2D materials. Our work has demonstrated an effective strategy to improve the performance of SnSe2-based photodetectors and paves the way for their future commercialization.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2024
·Vol. 107
·期 10
·6911-6920
·
IF 3.5
Ruixue Bai,Mian Li,Lingyan Feng,Qing Huang
The family of MAX phases and their two-dimensional derivative MXenes attract significant attention due to their unparalleled properties. Synthesis of MAX phases and MXene from biomass sources is important to expand their biology-related applications, while it remains a challenge. The present work explores the possibility to synthesize MAX phases and subsequently derive MXenes by using biomass precursor. Ti 3 AlC 2 MAX phase was synthesized by using glucose as the carbon source in molten salt. The conversion behavior from glucose to Ti 3 AlC 2 was investigated, and the conversion rate of carbon from glucose reached to 70.4% by optimizing the reaction conditions. The as-obtained Ti 3 AlC 2 can be derived into Ti 3 C 2 T x MXene and MXene quantum dots by common chemical treatments, which provides possibility for biomass-derived nanolaminates applying in biological applications such as biological catalysis, bioinstrumentation, and biological tracking.
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Journal of Energy Storage
·
2025
·
IF 9.8
Yajie Yuan,Weiya Zhang,Li Wang,Zongwen Zhao,Yaochun Yao,Yin Li,Zhunqin Dong,Lingling Yuan
As the energy density of lithium-ion batteries continues to increase, the performance requirements for separators have become more stringent. Traditional polyolefin separators offer advantages such as low cost and excellent chemical stability. But they suffer from poor electrolyte wettability, thermal stability, and high interfacial resistance, which hinder the development of high-performance lithium-ion batteries. To address these issues, this study introduces a blending coating method using titanium nitride and boron nitride particles to enhance the overall performance of polypropylene separators. The TiN/BN@PP-15 separator demonstrates superior wettability, thermal stability, and electrochemical performance. Under a high discharge rate of 5C, it achieves an initial discharge capacity of 130.7 mAh g −1 . Additionally, batteries assembled with the TiN/BN@PP-15 separator exhibit the lowest interfacial resistance of 79.7 Ω, a high ionic conductivity of 0.466 mS cm −1 , and a lithium-ion diffusion coefficient of 11.7 × 10 −14 cm 2 s −1 . These results indicate that the co-blending coating of TiN and BN particles not only improves the physicochemical properties of PP separators but also ensures high discharge capacity and cycling stability under high-rate conditions, providing reliable technical support for high energy density and high rate energy storage systems.
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ACS Catalysis
·
2025
·
IF 13.1
Hailong Xie,Yishu Wang,Yu-Hui Xie,Dong Feng,Feng Wu,Delong Xie,Yi Mei,Yu-Xin Liu
Photoreforming of plastic waste offers a solution for reducing environmental pollution while producing value-added products. This study investigates the impact of conduction band edge modulation on the photoreforming efficiency of waste polyethylene terephthalate (PET) using a TiO2/black phosphorus nanosheet (BPNS) heterojunction catalyst, leveraging the tunable bandgap and high carrier mobility of BPNSs. The BPNS/TiO2 heterojunction demonstrated remarkable PET degradation under simulated solar illumination, achieving an 80% weight loss after 35 h. Simultaneously, the system exhibited efficient hydrogen evolution, producing 345.2 μmol g–1 h–1 of H2. Bandgap modulation analysis revealed that as the conduction band edge (ECB) of the photocatalyst became more negative, the increase in CO evolution rates surpassed those of H2 and CO2, likely due to enhanced charge transfer, stronger oxygen adsorption, and a more negative reduction potential. The influence of bandgap tailoring on charge separation, transfer dynamics, and oxygen radical generation, directly linked to photoreforming efficacy, was analyzed through EIS, ESR, and DFT calculations. This study underscores the potential of BPNS/TiO2 heterojunctions for efficient and selective photoreforming of different plastic waste, offering valuable insights into catalyst design for environmental remediation and energy recovery.
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2025
·Vol. 26
·期 16
·7751
·
IF 4.9
Jian Feng,Xiaohui Li,Xia Ran,Li Wang,Bo Xiao,Rong Li,Guangwei Feng
Fenton oxidation technology utilizing hydrogen peroxide is recognized as an effective method for producing reactive oxygen species (ROS) to facilitate the degradation of antibiotics. However, the requirement for strongly acidic conditions during this process significantly restricts its broader applicability. In this study, we synthesized black phosphorus (BP) nanosheets by exposing the {010} crystal planes and then constructed a 0D/2D BP/Bi2MoO6(PBMO) heterojunction to function as a Fenton catalyst. The PBMO-75 heterojunction exhibited a remarkable increase in photo-Fenton catalytic activity towards oxytetracycline (OTC) under neutral conditions, achieving catalytic efficiencies that were 20 and 8 times greater than those of BP and Bi2MoO6(BMO), respectively. This can be attributed to its strong absorption of visible light, the establishment of an internal electric field (IEF) at the interface, and the implementation of a Z-scheme catalytic mechanism. Additionally, the photo-Fenton system was further improved in OTC degradation through the continuous conversion of Mo6+/Mo5+under visible light irradiation in conjunction with H2O2. Based on ERS, XPS, and active species trapping experiments, we propose a Z-scheme charge transfer mechanism for PBMO. This research offers compelling evidence that 0D/2D Z-scheme heterojunctions are promising candidates for the photo-Fenton treatment of antibiotic contaminants.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Jingjing Liu,Ke Pei,Yongshen Zhou,Shuangmin Fu,Shulun Ai,Yunli Wang,Huiyu Jiang,Zhiwen Zhou,Zhiguang Guo
The integration of bio-inspired nanostructured metal-organic frameworks (MOFs) with textiles opens new frontiers for smart wearable systems. This study develops a mechanically robust superhydrophobic AgTCNQ-MOF hybrid fabric via in situ self-assembly, mimicking cactus spines to achieve water contact and sliding angles of 159.2° and 1.8°, respectively. The optimized textile demonstrates multifaceted functionality: 1) Ultrahigh oil-water separation performance (efficiency: 98.4%; flux: 18.0 kL·m −2 ·h −1 ); 2) Anti-icing capacity extending freezing onset from 105 s to 685 s under −20 °C; 3) Full-spectrum UV resistance (UVA: 2.5%, UVB: 2.7%) with 99.8% antimicrobial efficacy; 4) Autonomous self-cleaning via contaminant-removing rolling droplets; and 5) Outstanding mechanical flexibility (6000 cycles) coupled with ultrahigh solar-thermal efficiency (91.5%) enabled by AgTCNQ-derived ultrasmall-bandgap (0.47 eV) engineering, a notable advancement over conventional systems. A covalent interfacial anchoring strategy ensures exceptional durability, maintaining superhydrophobicity after 30 abrasion cycles or 200 h UV exposure. The ultrasmall-bandgap of AgTCNQ uniquely optimizes photon-to-thermal conversion while maintaining multifunctionality, which is a key innovation differentiating this platform. This synergy between bandgap-engineered nanoporosity and textile flexibility enables real-time environmental responsiveness. Such integration bridges nanotechnology and textile engineering to address wearable-environmental challenges, advancing applications in medical wearables, industrial filtration, and adaptive robotics.
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CHINESE CHEMICAL LETTERS
·
2025
·
IF 8.9
Shanshan Wang,Junhao Chen,Kui Qu,Xingyun Li,Hao Wang,Qingchi Xu,Jian Weng,Jun Xu
Unravelling the mechanism of electronic state evolution is ultimately important when attempting to functionalize two dimensional (2D) materials through electronic state regulation. However, there is still a lack of understanding in how the individual local functionalized regions could influence the entire 2D-layered property. Herein, we report the observation of surface electronic behavior during these functionalization process when utilizing the electron-deficient aluminium ion (Al 3+ ) to passivate 2D black phosphorus (BP). Interestingly, the local electron density change in response to a certain functionalization can induce the periodic electron density gradient via inductive integration effect and spread over the entire 2D surface layer. Such 2D coupling effect is evidently supported by the combined investigation of in-situ / ex-situ experimental analysis and theoretical calculation, upon the model Al 3+ -BP modulating process. This work discloses the electron-level relationship between the individual and the whole during the functionalization process and therefore provides a direction for precise manipulation of electronic behavior in functionalized 2D materials.
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ACS Applied Energy Materials
·
2025
·
IF 5.5
Zhen Zeng,Shengnan Zhang,Jun Cheng,Yuanyuan Li,Hongqiang Zhang,Xuan Zhou,Haonan Wang,Lijie Ci,Deping Li
Composite solid electrolytes (CSEs) based on inorganic oxide electrolyte and organic polymer electrolyte are recognized as promising candidates to realize high-performance solid state Li metal battery. Although the ionic conductivity of CSEs is limited, the usage of a plasticizer can make a great difference. Due to the high conductivity and extraordinary resistance to electrochemical oxidation, succinonitrile (SN) is widely used as a plasticizer in CSEs. However, the influence of the compatibility between SN and conductive oxide ceramics is underrated. In this work, we solve the catalytic decomposition effect of Li7La3Zr2O12 (LLZO) toward SN by silane coupling agent coating. Due to good affinity and chemical bonding toward the organic phase, the coating layer can promote the Li+ exchange rate through the heterogeneous interface between the organic/inorganic phase and improve the ionic conductivity of CSEs. Besides, surficial carbonyl groups of LLZO introduced by a coating can regulate the Li+ coordination structure and accelerate the ion transport. Our design realizes a high conductivity of 5.9 × 10–4 S cm–1 at 30 °C and enables the cyclability of Li symmetric cell over 480 h at 0.1 mA cm–2. Besides, the full cell with LiFePO4 (LFP) as the cathode delivers a capacity of 137.6 mAh g–1 with a capacity retention of 96.1% after 150 cycles. Our work demonstrates the regulation effect of interfacial structure on the electrochemical performance of SN-based CSEs, which contributes to realizing a practical solid state Li metal battery.
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Inorganic Chemistry Frontiers
·
2024
·
IF 6.1
Kai-Yao Wang,Meng-Yu Li,Lin Cheng,Xin Hao,Cheng Wang
Long-lived 137Cs/134Cs, 60Co, and 63Ni with high-energy β/γ emissions are primary toxic fission/activation products in nuclear-contaminated water, causing irreversible damage to the ecological environment and human health. Rapid remediation of these radionuclides emerges as an urgent task, while the deficiencies in adsorption kinetics, selectivity and acid resistance hinder the material innovation for practical applications. Herein, we have developed a hybrid cadmium/tin selenide adsorbent K3.4(CH3NH3)0.45(NH4)0.15Cd2Sn3Se10·3.4H2O (CdSnSe-2K) for the enrichment and sequestration of Cs+, Co2+, and Ni2+ ions. CdSnSe-2K features a unique open-framework constructed from the interlinkage of T2-{M4Se10} (M = SnIV/CdII) supertetrahedral clusters and M bridges, accelerating the ion transfer in the tunnel system and thus affording quick kinetics (k2 = 9.706, 0.182, 0.099 g mg−1 min−1 for Cs+, Co2+, Ni2+). Remarkably, the removal rate RCs increases to 98.54% in just 2 min and 99.57% in 5 min (equilibrium), which is responsible for an ultra-high distribution coefficient Kd of 2.31 × 105 mL g−1. The soft-Lewis basic Se component endows CdSnSe-2K with a fantastic adsorption selectivity for Cs+, Co2+, and Ni2+ against various coexisting cations and anions in complex actual water environments even including the highly salty sea water medium. CdSnSe-2K exhibits a fantastic acid/base tolerance over pH = 2–13, and the maximum adsorption capacities qCsm, qCom and qNim under neutral condition are 218.08 ± 80.08, 43.95 ± 16.57 and 42.53 ± 16.50 mg g−1, respectively. In addition, CdSnSe-2K single crystals were also employed as the stationary phase for the fabrication of an ion exchange column, which shows an elimination efficiency above 99% in the long-term filtration for Cs+ (8200 BVs), Co2+ (4000 BVs) and Ni2+ (4000 BVs). This work not only highlights CdSnSe-2K as a promising Cs+, Co2+, and Ni2+ scavenger in radionuclide remediation, but also provides a supertetrahedral cluster-based construction strategy for open-framework selenide materials with enhanced adsorption kinetics, selectivity, and acid resistance.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Abdul Basit,Tanveer Hussain,Xin Li,Jiwu Xin,Bin Zhang,Xiaoyuan Zhou,Guoyu Wang,Ji-Yan Dai
Being a major obstacle, Ag2Te has always been restricted in p-type AgSbTe2-based materials to improve their thermoelectric performance. This work reveals a stabilized AgSbTe2 through Sn/Ge alloying as synthesized by melting, annealing, and hot press. Interestingly, addition of Sn/Ge in AgSbTe2 extended the solubility limit up to ∼30% and hence suppressed Ag2Te in Ag(1–x)SnxSb(1–y)GeyTe2 compounds and led to enhanced electrical transport. Moreover, electrical and thermal transport properties of AgSbTe2 have been greatly affected by the phase transition of Ag2Te near 425 K. However, high-entropy Ag0.85Sn0.15Sb0.85Ge0.15Te2 compound results in a stabilized rock-salt structure and presents a high power factor of ∼10.8 μW cm–1 K–2 at 757 K. Besides, density functional theory reveals that available multivalence bands in Sn/Ge-doped AgSbTe2 lead to reduction in energy offsets. Meanwhile, a variety of defects appear in the Ag0.85Sn0.15Sb0.85Ge0.15Te2 sample due to entropy change, and thus lattice thermal conductivity decreases. Ultimately, a high figure of merit of ∼1.5 is attained at 757 K. This work demonstrates a roadmap for other group IV–VI materials so that the high-entropy approach may inhibit the impurity phases with extended solubility limit and result in high thermoelectric performance.
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ADVANCED MATERIALS
·
2025
·
IF 26.8
Decheng Li,Guyue Li,Yifan Yu,Chilin Li
Fluoride ion batteries (FIBs) have garnered significant attention due to their ultrahigh theoretical energy density, dendrite-free safety, and resource abundance. Although some anion acceptors have been proposed to address the insolubility of inorganic fluoride salts, the difficulty in dissociating fluoride ions from acceptors results in short lifespan and extremely low specific capacity of FIBs. Here, a fluoride ion battery is demonstrated with unprecedented long life and ultrahigh specific capacity through the design of an acceptor-multi-F state electrolyte. The high Lewis acidity of triphenylantimony chloride (TSbCl) as a novel anion acceptor in electrolyte facilitates the complete dissociation of CsF, and the resulting TSbCl-F complex can further interact with fluoride ions to form the acceptor-multi-F states. This strategy combines the high dissociation capability for fluoride salts with the minimal thermodynamic barriers for releasing fluoride ions at electrode-electrolyte interface. This electrolyte design endows FIBs with durable reversible fluorination/defluorination reaction (3700 cycles with high coulombic efficiency of 99.5% and small voltage polarization of 30 mV) and ultrahigh reversible capacity (580 mAh g −1 after 40 cycles at 100 mA g −1 ). The high-output voltage FIBs of CuF 2 //Li configuration (with discharge plateau of 2.9 V) and larger-sized pouch-type FIBs of CuF 2 //Sn+SnF 2 configuration (with reversible capacity of 530 mAh g −1 ) are demonstrated.
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Nature Chemistry
·
2025
·
IF 20.2
Zheng Nanlong,Cao Songqi,Zhang Tianhao,Huo Peihao,Hu Conglan,Liu Huanyu,Guo Ruoyao,Yan Wenchao,Zheng Jiayin,Jiang Xiaofan,Zhu Zhenyu,Sun Junliang,Jiang Hong,Bian Zuqiang,Fu Yongping,Liu Zhiwei
Zero-dimensional (0D) metal halides, which feature discrete metal halide octahedra interspersed with large organoammonium cations, are the building blocks of halide perovskites. The optical properties of these materials make them promising candidates in light-emitting devices. However, developing their general design principles remains challenging. Here we report an antisolvent incorporation approach that transforms a broad range of two-dimensional tin iodide perovskites into 0D structures. This approach accommodates diverse organic cations and antisolvent molecules and is extendable to germanium and lead analogues. We show that enhancing the structural rigidity in Sn-based octahedra—modulated by organic packing—increases the radiative recombination rate while decreasing the non-radiative recombination rate, achieving near-unity photoluminescence quantum yield. Ge- and Sn-based structures exhibit large Stokes shifts and microsecond-scale triplet lifetimes due to localized excited states, while their Pb-based counterpart shows faster recombination via triplet–singlet mixing, supported by theoretical calculations. This work offers a versatile synthetic platform for 0D metal halides and deepens our current understanding of excited-state dynamics in halide perovskites.
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