Laser & Photonics Reviews
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2025
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IF 10
Wei Liao,Kai Han,Yuzhen Wang,Zhiguo Xia
X-ray imaging based on scintillators with visible-light emission primarily reveals structural information, but the integrated detection of complex targets, especially biological systems, remains challenging. Here, a dual-mode collaborative imaging strategy is proposed based on the design of perovskite-type halide scintillators (Cs 2 HfCl 6 :Mo 4+ ), which present efficient near-infrared (NIR) emission above 900 nm upon the excitations of 808 nm laser and X-ray sources. Dual-mode indirect imaging with simple excitation source switching has been performed to visualize bone and blood vessels in biological targets. The light yield and detection limit are estimated to be 44500 Ph MeV −1 and 87.4 nGy s −1 , respectively, and a dual-mode imaging screen with spatial resolution of 14 lp mm −1 for NIR imaging and 12 lp mm −1 for X-ray imaging is successfully obtained. This work may stimulate research into the NIR scintillators for the development of multi-mode imaging with mitigating light crosstalk.
研究领域:
材料科学
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医学影像
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光学工程
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Guilong Liu,Mingyuan Xu,Ruping Cao,Zihan Zhao,Wenzhuo Yuan,Yong Liu,Ang Cao,Lijuan Wang,Xianming Liu
SnS with high theoretical capacity, large lamellar spacing, and favorable voltage plateau is considered as a highly prospective anode material for sodium-ion batteries (SIBs). Nevertheless, the unsatisfied intrinsic conductivity and damaging volume variation during cycles restricted its specific capacity and potential application. In this work, a synergistic sodium storage of interfacial engineering and Na 2 S adsorption was proposed to boost the electrochemical kinetics of SnS by vertically growing SnS@C nanosheets on MBenes. The experimental and theoretical calculation results verified that the nanosheets, heterogeneous interface, and charge transfer between Mo 4/3 B 2 T x and SnS offered rapid ion diffusion pathways and ameliorated the intrinsic conductivity, promoting the electrochemical kinetics. The sufficient sulfur vacancies and strong adsorption ability of Na 2 S on MBenes provided supplementary active sites for ion adsorption and suppressed the shuttle effect of Na 2 S, improving the electrochemical capacity and reversibility. Consequently, the MBenes-SnS@C anode delivered high capacities of 411 mAh g −1 at 1 A g −1 and 420 mAh g −1 after 100 cycles at 0.5 A g −1 . The synergistic sodium storage mechanism arising from interfacial effects and Na 2 S adsorption offered novel insights for the rational design of high-performance transition metal sulfide anodes for SIBs.
研究领域:
材料科学
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电化学
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DOI
PubMed
高影响因子
RSC Advances
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2017
·Vol. 7
·期 17
·10564-10569
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IF 3.108
Xiaowen Zhang,Yang Li,Zhongliang Hu,Zhi Chen,Jianrong Qiu
The second near-infrared window (NIR-II, 1000–1400 nm) is ideal for fluorescence imaging owing to negligible tissue scattering and minimal autofluorescence. NIR-II luminescence nanophosphors are promising materials for fluorescence imaging. Mn5+ is emerging as a new luminescent indicator owing to its typical NIR-I (800 nm) to NIR-II (1190 nm) downconversion luminescence. Herein, we report a facile synthesis approach to prepare Mn5+ doped Ba3(MO4)2 (M = V, P) nanoparticles with a remarkably sharp emission peak around 1190 nm in the NIR-II region for the first time to our knowledge. The developed two-step approach based on efficient anion exchange reaction is able to not only stabilize the valence but also keep the controlled morphology and uniform size. It is highly possible that the general approach will provide a new perspective on synthesizing special valence ion doped nanosized materials.
研究领域:
材料科学
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生物医学工程
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光学成像
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
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IF 7.1
Yaru Wang,Xiaoyue Chen,Xiangchao Meng,Zizhen Li
Electrocatalytic conversion of nitrates to produce high-value-added NH3 exhibited promise as a replacement for the Haber–Bosch process due to the involvement of an eight-electron and nine-proton transfer in the electrocatalytic nitrate reduction reaction (NO3RR), which exhibits low Faradaic efficiency and selectivity toward NH3. Herein, a cobalt molybdate catalyst was in situ grown on nickel foam with abundant oxygen vacancies and a rich unsaturated coordination Mo4+ environment by a rapid Joule heating method. The synergistic optimization of these features modulated the overall catalyst electronic structure, achieving both high activity and high selectivity in NO3RR. Specifically, in an electrolyte of 0.1 M K2SO4 and 1000 mgNO3–/L, a Faradaic efficiency of 94.6% and a NH3 yield rate of 1.32 mg h–1 cm–2 were achieved at −0.35 V vs RHE. Meanwhile, the selectivity of NH3 reached 97% after the 12 h test. In six consecutive cycles and during a 12 h extended stability assessment, the CMO/NF-800 catalyst consistently exhibited exceptional chemical stability. DFT results demonstrated that nitrate adsorption and ammonia desorption were more readily achieved on the surface of the CMO/NF-800 and that there was a lower energy barrier that needed to be overcome for RDS. This work provided a reservable approach to the preparation of catalysts with abundant unsaturated coordination environments on the highly selective electroreduction of nitrate into ammonia.
研究领域:
电催化
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材料科学
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环境化学
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DOI
高影响因子
LUMINESCENCE
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2025
·Vol. 40
·期 11
·e70352
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IF 3
Jiahong Li,Zhan Du,Xiaoshuang Li,Limin Zhang,Liangyi Gu,Daxi Pan,Jingrui Zhang,Bo Wang
This study presents the synthesis of Mo 4+ -doped Cs 4 ZnBi 2 Cl 12 double perovskite through a hydrothermal method, demonstrating efficient near-infrared (NIR) emission at 1110 nm with a full width at half maximum (FWHM) of 45 nm. The emission originates from the d-d transition of Mo 4+ ions within an octahedral crystal field. Structural analysis using powder X-ray diffraction (PXRD) confirms the phase purity and lattice contraction as a result of Mo 4+ substitution at Bi 3+ sites, supported by X-ray photoelectron spectroscopy (XPS) and elemental mapping. The material exhibits broad excitation compatibility (348–590 nm) and achieves a photoluminescence quantum yield (PLQY) of 45.3% with a microsecond-scale lifetime of 6.78 μs. Thermal stability tests demonstrate sustained emission intensity (58% at 420 K) and resilience to prolonged heating or UV exposure. This work highlights Mo 4+ -doped Cs 4 ZnBi 2 Cl 12 as a stable and efficient NIR emitter, advancing lead-free perovskites for optoelectronic applications in bioimaging, agriculture, and sensing.
研究领域:
材料科学
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光电子学
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无机化学
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光子学
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固态化学
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DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
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2025
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IF 4.7
Xiaoshuang Li,Jiahong Li,Bo Wang,Daxi Pan,Liangyi Gu,Jingrui Zhang,Limin Zhang,Youchao Kong,Jianhui Huang
The development of efficient, thermally stable, and broadband near-infrared (NIR) phosphors is critical for next-generation smart devices yet remains challenged by limited quantum efficiency and spectral coverage in existing systems. Here, we introduce a breakthrough strategy via crystal field distortion engineering in zero-dimensional Cs2ZnCl4, achieving unprecedented Mo4+-activated broadband NIR emission centered at 960 nm with a fwhm ∼ 206 nm. Unlike conventional octahedral hosts, the tetrahedral Zn2+ site in Cs2ZnCl4 undergoes a distortion-driven transformation to an octahedral Mo4+ coordination upon doping, facilitated by Cs vacancies and Jahn–Teller effects. This unique structural reorganization enables a remarkable internal quantum efficiency of 78.7%. The material exhibits thermal stability and environmental robustness. Leveraging these properties, we fabricate NIR phosphor-converted LEDs (pc-LEDs) with a peak output power of 132 mW at 350 mA, demonstrating high-contrast imaging for fruit bruise detection and night vision. This work not only establishes a new paradigm for activator-centered lattice distortion to unlock efficient NIR luminescence but also expands the frontiers of 4d transition-metal-ion applications in optoelectronics.
研究领域:
光电子学
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材料科学
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固态化学
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发光材料
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光子学
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DOI
PubMed
高影响因子
ACS Applied Energy Materials
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2025
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IF 5.5
Huiqing Zhou,Haifeng Yang,Yongzheng Zhang,Xiaomin Cheng,Chengru Li,Jianghao Zhu,Jianan Gu,Cheng Ma,Wenming Qiao,Jitong Wang,Licheng Ling
Aqueous zinc-ion batteries (AZIBs) hold significant promise for energy storage; however, the high dissociation energy barriers of bulky hydrated zinc ions ([Zn(H2O)6]2+) induce uneven Zn deposition, leading to severe capacity degradation and a limited cycle life. Herein, an effective desolvation-enhanced zinc anode protective layer is constructed using Mo4/3B2–X nanosheets, in which the etching-induced metal vacancies and –F zincophilic sites endow the layer with a strong affinity for Zn2+ and effectively catalyze the desolvation of [Zn(H2O)6]2+. Experimental and theoretical calculations demonstrate that under the action of Mo4/3B2–X, the desolvation energy of [Zn(H2O)6]2+ can be effectively reduced from 38.99 kJ mol–1 of bare Zn to 27.67 kJ mol–1, significantly promoting greater flux and rapid diffusion of free Zn2+. As a result, this configuration achieves a dendrite-free Mo4/3B2–X-Zn anode with an ultralong cycling life exceeding 2000 h, which is 18 times that of bare Zn. Even under low-temperature conditions at 0 °C, the Mo4/3B2–X-Zn anode maintains stable cycling for over 2800 h with a low overpotential of 58 mV at 0.5 mA cm–2. Pairing with the KVO cathode, the full cell delivers a capacity of up to 291.2 mA h g–1 at 0 °C and the pouch cell achieves 256.9 mA h g–1 under a high mass loading of 9.5 mg cm–2, demonstrating promising commercial potential.
研究领域:
材料科学
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电化学
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能源存储
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DOI
高影响因子
JOURNAL OF LUMINESCENCE
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2025
·
IF 3.6
Chao Wang,Junlin Wang,Dongting Wang,Linli He
In this work, we successfully synthesized a novel lead-free perovskite material Cs 2 TeCl 6 : xMo 4+ (x = 0.02,0.06,0.1,0.2) and conducted in-depth research on its near-infrared emission characteristics. The morphology of the material was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results confirmed that the synthesized Cs 2 TeCl 6 : xMo 4+ exhibited excellent crystallinity and high phase purity. And it exhibits efficient luminescence performance in the near-infrared region, with a maximum emission wavelength of 900 nm and a full width at half maximum of 100 nm. The photoluminescence quantum yield (PLQY) in the near-infrared region (750–1100 nm) measured at an excitation wavelength of 450 nm is as high as 29 %. The temperature-dependent (80–480K) near-infrared PL spectra also exhibit good thermal stability at low and high temperatures. Near infrared phosphor converted LEDs (pc-LEDs) made from this material exhibit excellent stability in the range of 100 mÃ500 mA. The pc-LEDs based on Cs 2 TeCl 6 : 0.1Mo 4+ material exhibit efficient near-infrared emission in the near-infrared region, demonstrating excellent performance in applications such as venous photography, night vision and drug impurity detection. In addition, the excellent performance of this material not only provides new insights for the application of perovskite materials in near-infrared luminescence, but also provides important theoretical and experimental basis for the development of new and efficient near-infrared luminescent materials.
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高影响因子
JOURNAL OF RARE EARTHS
·
2026
·
IF 7.2
Yu Zha,Fangxue Chen,Fanju Meng,Xiancheng Ning,Tianyu Guo,Danxia Liu,Jin Han,Yugeng Wen,Jianbei Qiu
Transition metal ion-activated phosphors are promising candidates for broadband near-infrared (NIR) spectroscopy applications. However, achieving high external quantum efficiency (EQE) and good thermal stability in low-dimensional halide perovskites has presented challenge. Herein, a design strategy based on cerium doping has been developed for realizing high-efficiency broadband NIR tetravalent molybdenum (Mo 4+ ) luminescence to overcome multivalent Mo-related lattice defects and self-absorption. Particularly, Ce 4+ , Mo 4+ -codoped Cs 2 TeCl 6 shows broadband NIR emissions ranging from 800–1300 nm with a full width at half-maximum of 186 nm, high EQE > 50% and good thermal stability (85%@150 °C). Experimental and theoretical studies verify the synergistic effects of breakdown of site symmetry, reduction of lattice defects and relaxation of the spin-selection rule of Mo 4+ . Moreover, gas sensing of toxic toluene with low detection limit and high sensitivity is presented due to strong molecular interaction-induced luminescence quenching. These findings provide new opportunities for broadband NIR spectroscopy applications.
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DOI
高影响因子
Nature Communications
·
2026
·
IF 18.1
Huang Tao,Wang Bingzhen,Yang Lina,Niu Quan,Zou Bingsuo
Developing highly efficient lead-free near-infrared (NIR) phosphors with strong thermal stability is a key challenge in material design and optoelectronics applications. Here, a machine-learning (ML) guided co-doping strategy to construct a broadband NIR-emitting phosphor, Cs 2 Zr(Cl 0.46 Br 0.54 ) 6 :12%Mo 4+ /3.6%Sb 3+ (SM-CZCB) is reported, achieving record-high internal and external quantum efficiencies of 92.4% and 65.9% at 920 nm, respectively. Guided by ML, Sb 3+ and Br - were selected to co-dope and synergistically enhance energy transfer through the spin-orbit coupling, d-d correlation, and lattice distortion to enhance NIR emission of Mo 4+ . Notably, a [SbCl 6 ] 3+ -[ZrCl 6 ] 2- -[MoCl 6 ] 2- sequential energy transfer chain form a near-resonant configuration to reach the emission centers. The fabricated NIR light-emitting diode using SM-CZCB exhibits a record-high power conversion efficiency of 27.07% with an operational T 50 exceeding 4000 hours at 450 nm excitation. Moreover, the AI-enhanced biomedical imaging was demonstrated using NIR light with high-resolution. This marks the integration of AI-guided material design with practical AI-enhanced medical imaging.
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PubMed
高影响因子
Journal of Magnesium and Alloys
·
2026
·
IF 15.8
Haoyuan Zheng,Hua Ning,Chen Jin,Shuzhong Wang,Yadong Wang,Shixuan He,Haizhen Liu,Xinhua Wang
The magnesium-based hydrogen storage composite system Li–Mg–N–H (Mg(NH 2 ) 2 –2LiH) has attracted considerable attention due to its moderate operating temperature and high reversible capacity of 5.6 wt%, but its sluggish hydrogen absorption/desorption kinetics and poor cycling stability limit practical applications. Introducing an efficient catalyst is key to overcoming these issues. Herein, for the first time, an MBene material is introduced into a solid-state hydrogen storage system. Mo 4/3 B 2- x with a flower-like structure is successfully prepared by selective etching of the MAB phase (Mo 4/3 Y 2/3 AlB 2 ) and is then added as a catalyst into the Mg(NH 2 ) 2 –2LiH system. The improving effect and the underlying mechanism on hydrogen storage performance are systematically investigated. The results show that the composite with 10 wt% Mo 4/3 B 2- x exhibits optimal comprehensive performance. The onset temperatures for hydrogen absorption and desorption are significantly reduced from 110/130°C to 65/106°C, respectively. The hydrogen absorption/desorption capacities exceed 4.7 wt% under isothermal conditions at 180°C/170°C, and the apparent activation energy for hydrogen desorption decreases from 117.0 kJ/mol to 87.5 kJ/mol. Remarkably, after 100 cycles, the reversible capacity remains above 4.47 wt%, demonstrating excellent cycling stability. Mechanistic studies combined with DFT calculations reveal that the flower-like Mo 4/3 B 2- x dissociates into fine petals and becomes highly dispersed in the matrix during ball milling. The interaction between the catalyst and the matrix effectively weakens the N–H and Mg–N bonds and promotes the retention of the cubic phase Li 2 MgN 2 H 2 in the hydrogen desorption product, which is more favorable for rehydrogenation. Meanwhile, abundant boron vacancies in the catalyst structure provide fast diffusion channels for hydrogen atoms, and the highly dispersed nano-petals effectively separate the matrix particles, collectively enhancing the kinetics and cycling performance. This work opens a new direction for the application of MBene materials in solid-state hydrogen storage and provides a new strategy for the rational design of high-performance hydrogen storage catalysts.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 48
·105742-105755
·
IF 5.8
Chang Da,Sun Juanjuan,Wang Chang,Hao Linlin,Zeng Ming
In this work, we have fabricated a novel Fenton-like ferrihydrite/MoS 2 (Fh/MoS 2 ) composite and verified that the introduction of a small amount of iron on the surface of MoS 2 can directly promote the exposure of Mo 4+ , finally enhancing the catalytic activity of the catalyst. Even though the content of iron element is only 1.19% in the composite, the reaction rate constant of Fh/MoS 2 system for the degradation of environmental pollutants, such as organic dyes, antibiotic, and ionic liquid, is all much better than that of pure MoS 2 system, which is attributed to much more generation of reactive oxygen species derived from synergistic effect of Fe 3+ /Fe 2+ and Mo 4+ /Mo 6+ redox cycles. The results of XPS and low-temperature EPR confirm that the exposure amount of Mo 4+ active sites of 10% Fh/MoS 2 is greatly increased, which is conducive to the conversion of Fe 3+ to Fe 2+ in the reaction process, thus effectively promoting the activation of H 2 O 2 .
研究领域:
环境科学
·
催化
·
材料科学
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DOI
PubMed
高影响因子
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