Energy & Environmental Science
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2025
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IF 30.8
Hongyu Qin,Ao Liu,Kefeng Ouyang,Sheng Chen,Shubing Wei,Yan Huang
Sluggish diffusion rate and exceptionally uneven distribution of Zn2+ at the electrode/electrolyte interface under high depth of discharge (DOD) severely limits the advancement of high-energy-density Zn metal batteries (ZMBs). Herein, a hydrated eutectic colloidal electrolyte based on two-dimensional transition metal boride, Mo4/3B2T2 MBene (where T represents -OH and -F), is developed. The good Zn²⁺ affinity of terminal groups of MBene promotes ion diffusion, thus achieves a high Zn²⁺ transference number of 0.91, which significantly enhances and balances the ion concentration at the Zn anode surface, improving the Zn deposition dynamics. As a result, Zn anode with ultrathin thickness of 10 μm demonstrates 900 h of cyclability under ultrahigh DOD of 90%. Additionally, the enlarged Zn||Zn pouch cell with a scale of 10×10 cm2 shows a stable cyclic performance for 500 h at 60% DOD, meanwhile the constructed 2 Ah four-electron Zn||I2 pouch battery delivers an energy density of 158.5 Wh L−1 under the same condition. This work provides a new guideline for the development of high-DOD metal anodes and high-energy-density metal batteries.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
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IF 5.6
Yueqi Wu,Xing Gu,Mingyong Jia,Qiang Shen,Fei Chen
A reliable joining between silicon nitride (Si 3 N 4 ) ceramics and metallic molybdenum (Mo), which possess significantly different physical properties, is successfully achieved through powder metallurgy and gradient composite technology. The interfacial reaction mechanisms between Si 3 N 4 and Mo at various compositional layers are systematically investigated under a sintering temperature of 1500 °C. Based on the elucidated reaction pathways and the concentration distribution index (p), the structure of the transition layer in Si 3 N 4 /Mo x Si y /Mo functionally graded materials (FGMs) is effectively optimized. By eliminating the intermediate layers where severe reactions induce excessive porosity, the overall densification and interfacial integrity of the graded structure are significantly enhanced, thereby improving the mechanical performance of the composite. The results indicate that Si 3 N 4 and Mo primarily react via diffusion between Mo and Si to form molybdenum silicides, following the reaction sequence: (Mo + Si) → (Mo 3 Si/MoSi 2 + Si) → (Mo 5 Si 3 ). At a concentration distribution index of p = 1.5, the flexural strength of the Si 3 N 4 /Mo x Si y /Mo FGMs reaches a maximum value of 371.4 MPa. Furthermore, the elemental distribution across the optimized transition layers exhibits a quasi-continuous gradient profile, indicating excellent structural continuity and robust interfacial bonding.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Fenglong Wu,Xiao Tian,Jin Song,Ying Zhang,Wei Li
The activation of the water molecule (H₂O) serves as the rate-determining step for hydrogen (H 2 ) evolution from the photo-assisted hydrolysis of ammonia borane (NH₃BH₃). Therefore, developing a low-cost efficient catalyst that can expedite the cleavage of O H bonds in H₂O is needed for improving hydrogen production efficiency in practical applications. Here, we prepared a supported non-noble metal catalyst (Co/Mo@MoO 2 –200) with a large number of active sites, comprising ultrathin low-crystalline cobalt (Co) nanosheets grown on amorphous molybdenum oxide (MoO 2 )-coated molybdenum (Mo) nanoparticles (Mo@MoO 2 –200), which serves as a high-performance non-noble metal catalyst to accelerate the activation of O H bonds in H 2 O. Notably, visible light irradiation facilitates the formation of ultrathin Co nanosheets by inducing the localized surface plasmon resonance of MoO 2 , as verified by transmission electron microscopy (TEM) images. Moreover, X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS) spectra confirm the electron transfer from Co nanosheets to O sites in Mo@MoO 2 –200, establishing robust interfaces. Co/Mo@MoO 2 –200 exhibits high catalytic performance with the turnover frequency (TOF) value of 110.8 min −1 under visible light irradiation, which is greater than that of Co/Mo by 1.21 times and most of the reported Co-based catalysts. DFT calculations reveal that the Mo@MoO 2 –200 support in the catalyst can promote the Co-adsorption of NH 3 BH 3 and H 2 O, while facilitating H 2 desorption. Particularly, the Co/Mo@MoO 2 –200 can significantly decrease the activation energy barrier of the O H bond in H 2 O, compared with pristine Co and Mo@MoO 2 –200. This paper presents a flexible catalyst design strategy for NH 3 BH 3 hydrolysis and other H 2 O-associated catalytic reactions.
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PubMed
高影响因子
ACS Applied Energy Materials
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2025
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IF 5.5
Juan Sun,Yihui Zou,Penghui Ren,Peng Wang,Zhiyan Zhu,Can Cui
Perovskite solar cells (PSCs) in an n-i-p structure function well in large part due to the exceptional electrical conductivity and surface morphology of the SnO2-based transport layer (ETL). Here, we report a strategy to enhance the conductivity and tailor the surface morphology of the SnO2 ETL by incorporating molybdic acid (H2MoO4), forming a modified SnO2:H2MoO4 ETL. The incorporation of Mo6+ ions substitutes Sn4+ sites and inhibits the formation of oxygen vacancies (VO), resulting in an upshifted Fermi level and enhanced electron transport efficiency of SnO2. The H+ ions react with surface hydroxyl (−OH) defects through electrostatic interactions, suppressing surface defect generation and reducing nonradiative recombination. In addition, the in situ-formed amorphous MoO3 in the SnO2 matrix contributes to a denser and more uniform ETL. Consequently, the H2MoO4-modified PSCs achieve a champion PCE of 24.27%, marking a notable 9.5% boost compared to the control devices (22.17%), along with significantly enhanced long-term stability.
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高影响因子
MATERIALS RESEARCH BULLETIN
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2025
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IF 5.7
Litao Han,Hong Liu,Chen Lu,Yuanzhi Wei,Fanjun Kong
Molybdenum trioxide (MoO 3 ) possesses unique layered structure with high theoretical capacity and good environmental friendliness, which has been widely investigated as a potential anode material. Herein, MoO 3 nanosheets anchored in N-doped reduced graphene oxide (MoO 3 /NG) composite was constructed and prepared through hydrothermal reaction and post-calcination. The introduction of NG matrix can enhance the electronic conductivity and accelerate reaction kinetics of the MoO 3 , and solve the problem of severe capacity decay caused by its volume changes. MoO 3 /NG composite can deliver superior cycling performance (900.2 mAh g −1 at 0.2 Ag −1 after 100 cycles and 407.5 mAh g −1 at 10.0 Ag −1 after 500 cycles) and fast reaction kinetics with high diffusion coefficients and low charge transfer resistances. Moreover, the excellent electrochemical performance of the full battery lays a solid foundation for subsequent commercial application research.
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高影响因子
ACS Applied Materials & Interfaces
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2020
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IF 8.758
Junxiang Wang,Handong Jiao,Wei-Li Song,Mingyong Wang,Jiguo Tu,Zhongfeng Tang,Hongmin Zhu
Intermediate temperature NaCl–AlCl3-based Al-ion batteries are considered as a promising stationary energy storage system due to their low cost, high safety, etc. However, such a cheap electrolyte has a critical feature, i.e., strong corrosion, which results in the short cycle life of the conventional Al-metal anode and also limits the development of the NaCl–AlCl3-based Al-ion batteries. A noncorrosive electrolyte may be a good choice for addressing the above challenge, while it is difficult to obtain the electrolyte that has advantages of both noncorrosion and low cost. Therefore, here, we report a Ga-metal anode in the affordable NaCl–AlCl3 electrolyte for constructing a long-life stationary Al-ion energy storage system. This featured liquid metal anode shows good alloying and dealloying processes between metallic Ga and Al, as well as renders superior stability of the interface between the electrolyte and the anode (e.g., smoothly running for over 580 h at 2 mA cm–2). No-corrosion and no-pulverization problems appear in this novel liquid/liquid interface. Those advantages demonstrate that the liquid Ga-metal anode has a great promise for the improvement of the NaCl–AlCl3-based Al-ion batteries for large-scale stationary energy storage applications.
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PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2025
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IF 8.3
Bin Liu,Shiping Chen,Weihao Tan,Hexiang Ma,Lan Yu,Kun Dong,Liangwei Chen,Jinsong Wang,Kangcheung Chan
Developing high-activity electrocatalysts is crucial for the sustainable hydrogen production. This study presents a scalable strategy that combines arc-melted high-entropy alloy (HEA) synthesis with selective acid etching to create a superior catalyst for alkaline hydrogen evolution reaction (HER). The designed Nb 30 Mo 25 V 20 Pt 15 Ir 10 HEA undergoes controlled etching, which selectively removes specific elements to construct a highly active surface with exposing and stabilizing Pt/Ir active sites. The optimized catalyst demonstrates exceptional performance, achieving an ultralow overpotential of 24 mV at 10 mA cm −2 , a Tafel slope of 35.6 mV dec −1 , and remarkable stability in 1.0 M KOH electrolyte. More importantly, it exhibits a superior precious metal mass activity of 0.081 A mg −1 Pt + Ir and a high turnover frequency of 1.14 s −1 at 100 mV, surpassing the commercial Pt/C. Experimental characterization and DFT calculations reveal a synergistic multisite mechanism where Pt sites facilitate optimal H∗ adsorption while Mo–Ir bridge sites modulate surface OH∗ interaction, collectively enhancing the reaction kinetics. This work provides new insights into designing high-performance, cost-effective electrocatalysts through rational HEA engineering and post-synthetic surface modification.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
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IF 5.1
Jinlong Liu,Lian Yang,Jiyu Sun,Guocheng Liu,Zhong Zhang,Yongqiang Chen,Xiuli Wang
Soil environment and food safety are closely related to the daily lives of Human. Therefore, it is crucial to explore efficient methods for the detection of heavy metals in soil and food additives in drinks. In this study, silver nanoparticles (AgNPs) were modified on the surface of a polyoxometalate-based anionic metal-organic framework [NBu 4 ] 3 [PMo V 8 Mo VI 4 O 36 (OH) 4 Zn 4 (BDC) 2 ]·2H 2 O (POMOF) to obtain a multifunctional electrochemical sensing material (AgNPs@POMOF) through the reduction of NaBH 4 . The title AgNPs@POMOF was characterized by infrared spectroscopy (IR), powder X-ray diffraction (PXRD) and X-ray photoelectron spectroscopy (XPS). AgNPs@POMOF-modified carbon paste electrodes (AgNPs@POMOF-CPE) were prepared and characterized by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry, which exhibited good electrochemical detection ability for Hg 2+ and sunset yellow (SY), along with low detection limit (5.88 nM and 0.878 μM), good anti-interference ability and stability. The simulation application research for Hg 2+ and SY were also investigated for soil and juice samples, respectively. The reproducibility and mechanism have also been studied.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Kai Wei,Jiasheng Zhu,Lufang Fan,Weijie Zhang,Huarui Han,Changchang Ma,Kan Hu,Sheng Feng
Here, we constructed S-scheme CdIn 2 S 4 /MoO 3-x (CISMO) photothermal catalyst with interface Mo-S bond for efficient overall water splitting. As expected, hydrogen (H 2 ) and oxygen (O 2 ) evolution rates of the optimized CISMO reached 554.71 and 277.88 μmol·g −1 ·h −1 , respectively, far higher than that of CdIn 2 S 4 (71.78 and 34.45 μmol·g −1 ·h −1 ) and MoO 3-x (0 and 21.83 μmol·g −1 ·h −1 ). Mechanism analysis revealed that the photogenerated carrier transfer followed an S-scheme route. More importantly, the photocatalytic performance of CdIn 2 S 4 /MoO 3-x was highly relevant with the oxygen vacancies (Ovs) in pristine MoO 3-x . In S-rich environment, the Ovs could be imbedded by sulfur (S) for the formation of interface Mo-S bond during CISMO fabrication. Interface Mo-S bridge facilitated the photogenerated carriers transfer between CdIn 2 S 4 and MoO 3-x . Moreover, the metal-free localized surface plasmon resonance effect, originating from the residual Ovs in CdIn 2 S 4 /MoO 3-x , could further enhance the water splitting performance through photothermal conversion. This work shed light on controllable interface chemical bond formation in heterojunction photocatalysts to signally promote the photocatalytic performance.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
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IF 4.3
Peiwen Wu,Kailong Yu,Shuaishuai Zhou,Jing He,Haiyan Ji,Linlin Chen,Yan Huang,Hui Liu,Jixing Liu,Huaming Li,Wenshuai Zhu
Efficient oxidative desulfurization (ODS) of aromatic sulfur compounds under mild and green conditions remains a major challenge due to the limited activation ability of molecular oxygen and poor stability of traditional catalysts. In this work, a series of HPMo@MIL-100 catalysts were synthesized for ODS of fuel oils using molecular oxygen as a green oxidant. The introduction of HPMo into the MIL-100 framework not only improved the catalytic performance but also significantly regulated the electronic environment of the Fe active centers. Structural and electronic characterizations confirmed that HPMo incorporation decreased crystallinity, increased surface defects, and facilitated electron transfer within the framework. Detailed experiments identified superoxide radicals as the dominant reactive species, efficiently generated under the synergistic effect of HPMo and MIL-100. The optimized catalyst, HPMo@MIL-100–2, achieved complete removal of aromatic sulfides within 3 h at 120 °C and the aromatic sulfides were selectively conversed to corresponding sulfones. In addition, the catalyst demonstrated excellent recyclability, which can be reused 9 times without significant decrease in ODS performance. Furthermore, a desulfurization efficiency of 95.7 % was achieved to real FCC diesel, highlighting the catalyst’s potential for industrial application. This study provides an effective strategy for tuning MOF catalytic systems through electron modulation, enabling highly efficient, selective, and recyclable ODS performance under mild conditions.
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高影响因子
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