CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Yaqi Cui,Zulpya Mahmut,Yangdong Xie,Fangyu Shi,Jiaqi Zhou,Yaqi Zhu,Ruilin Lou,Zhenzhou Wang,Lin Xu,Lin Wang,Biao Dong
Manipulating the “bacterial current” by targeting the electron transport chain (ETC) presents a transformative antibacterial strategy, yet achieving precise targeting and elucidating the molecular mechanism remain challenging. Here, we break through the synthetic bottleneck to engineer a robust, electron-donating nanomaterial for targeted bacterial ETC disruption. A novel in-situ sulfur-doping and vacancy-engineering strategy was employed to fabricate porous Mo(SO)₂ from MoS₂, which features abundant oxygen vacancies and expanded interlayer spacing. These vacancies serve as electron-deficient centers that facilitate a rapid and strong electron donation. By functionalizing with 4-mercaptophenylboronic acid (4-MPBA) for targeting, the electrons are specifically transferred to the bacterial ETC. We systematically unveil the molecular mechanism: the donated electrons suppress the expression of ubiC , a key chorismate lyase for ubiquinone synthesis, via interaction with the guanidyl group of Arg63. This disruption halts proton pumping and ATP synthesis, leading to bacterial death via energy depletion.
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高影响因子
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
·
2025
·Vol. 38
·期 7
·075014
·
IF 4.2
Manikandan Krishnan,Jiaojiao Meng,Bai-zhuo Li,Yanmei Ma,Cao Wang,Dilip Bhoi,Yoshiya Uwatoko,Qiang Jing,Bo Liu
Structural, superconducting ground state, and normal state properties on Re-Os-W-Mo-Ta high-entropy alloys (HEAs) were investigated using powder x-ray diffraction, magnetization measurements, electrical resistivity analysis, and specific heat measurements. The structural phase transformation was found to develop through compositional variations of the primary elements of HEAs, leading to the formation of phases such as bcc-type Re23Os5W33Mo34Ta5, σ-type Re31Os18W23Mo23Ta5, and α-Mn-type Re33Os34W11Mo11Ta11. These impurity-free samples, displaying a single-phase structure, exhibit bulk superconducting behavior. Low-temperature specific heat analysis indicates that the bcc-type and σ-type HEAs exhibit weakly coupled, whereas the α-Mn-type HEA exhibits strongly coupled, isotropic and fully gapped superconductivity. Moreover, the stability of bcc-type, σ-type, and α-Mn-type HEAs is significantly influenced by key factors such as valence electron count and electronegativity differences. This study presents observations of structural transformations in HEAs driven by compositional variations without the introduction of additional elements, providing significant insights into the correlation between structural changes and superconducting properties in highly disordered systems.
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JOURNAL OF POWER SOURCES
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2026
·
IF 8.4
Yuhan Wang,Yihao Qu,Min Yu,Ji Yang
Proton-exchange-membrane water electrolysers require active and stable anodic oxygen evolution catalysts. RuO 2 offers high intrinsic activity but dissolves rapidly in acid. Here, high-valence molybdenum is introduced into rutile RuO 2 to regulate the local Ru-O chemical and electronic environment. The sample labels Mo-x-RuO 2 refer to nominal Mo/(Mo + Ru) precursor ratios. XRD, EDS, XPS and DFT analyses support Mo incorporation within the rutile framework and reveal an altered local Ru/O chemical environment, providing insights into the electronic regulation induced by Mo incorporation. Mo-17-RuO 2 requires 207 mV at 10 mA cm −2 , with a Tafel slope of 56.2 mV dec −1 . After 75 h of acidic half-cell operation, it shows 6.64% cumulative Ru dissolution based on the nominal initial Ru loading. The commercial RuO 2 reference exhibited 27.95% cumulative Ru dissolution after approximately 17 h of operation. For the selected computational models, the AEM- and LOM-like pathways exhibit comparable thermodynamic limiting steps, with theoretical overpotentials of 275 and 262 mV, respectively, suggesting that Mo incorporation modulates oxygen reaction energetics without exclusively favoring a single pathway. These findings provide insight into composition-dependent Mo engineering for improving the performance and Ru retention of acidic OER catalysts.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Yongjie Zhou,Cheng Liu,Xinlin Wei,Junxiao Liu,Liang Shi,Hao Li,Yuanxun Li,Huaiwu Zhang
In this study, BaZnP 2- x Mo x O 7+ x /2 (BZPM x , 0 ≤ x ≤ 0.03) ceramics were successfully sintered at low temperatures via the solid-state reaction. Rietveld refinement, surface morphology characterization, and Raman spectroscopy were employed to clarify the effects of Mo 6 + substitution on the crystallology and microstructure evolution of the BZPM x ceramics. Dielectric properties were evaluated in both microwave and terahertz frequencies. Optimal microwave dielectric properties were obtained at x = 0.02, sintered at 825 ℃ for 4 h: ε r = 8.073(±0.012), Q×f = 73,172(±1187) GHz (@13.687 GHz), and τ f = -31.9(±1.6) ppm/℃. Compared with the pure BaZnP 2 O 7 ceramic sintered at 875 ℃ ( Q×f = 47,984 GHz and τ f = −40.2 ppm/℃), the incorporation of Mo 6+ could reduce the dielectric loss and improve the thermal stability while reducing the sintering temperature simultaneously. In the terahertz frequency range of 0.2 ∼ 1.2 THz, the ε r values decreased to 5.35 ∼ 7.24 while the tan δ values were within the range of 0.0105 ∼ 0.0319. All experimental results indicated that the BZPM x ceramics are promising for LTCC devices in both microwave and terahertz frequencies.
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Catalysis Science & Technology
·
2026
·
IF 4
Jian Yang,Fan Lin,Shaojie Lei,Zichen Li,Hui Zhang,Zhibao Huo,Dezhang Ren
The development of efficient and low-energy-consumption electrocatalytic decarboxylation (Kolbe electrolysis) is of great significance for the conversion of biomass-derived carboxylic acids into high-grade hydrocarbon fuels. RuO2 is considered a promising anode material. However, its intrinsic high activity towards the oxygen evolution reaction (OER) poses challenges in terms of reaction selectivity and high driving potentials in practical applications. This study investigated the modulation of RuO2 electrode performance through the systematic screening of various metal dopants (Mo, Ta, Zr, W, Sn). Results show that while doping generally enhances OER, certain dopants sustain decarboxylation under high potentials by suppressing OER via hydrocarbon product coverage. Among them, the Mo-doped RuO2 coating improved decarboxylation selectivity and Faradaic efficiency to some extent while facilitating product desorption to inhibit interface resistance increase. By further optimizing the doping ratio and calcination temperature, the resulting RuO2-5%Mo anode achieved a remarkable reduction in cell voltage (by approximately 1 V) in the presence of OA during constant-current electrolysis, leading to a ~20% decrease in energy consumption per unit product compared to undoped RuO2, alongside good stability over 10 cycles. This work provides new material design strategies and mechanistic insights for developing Kolbe electrolysis anodes with high selectivity and low energy consumption.
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高影响因子
Small
·
2025
·
IF 12.1
Hongji Chen,Yue Mao,Zihao Ji,Ho Ngoc Nam,Quan Manh Phung,Hongfei Yin,Shuo Liu,Chunyu Yuan,Xiang Li,Dongdong Xiao,Yusuke Asakura,Yongzheng Zhang,Yusuke Yamauchi
Enhancing the activation efficiency of peroxymonosulfate (PMS) to generate more reactive oxygen species (ROS) is crucial for improving the catalytic performance of Fenton-like reactions. Strategies on the regulation of active sites and the enhancement of interfacial electron transfer from catalysts to PMS have become central to achieving effective PMS activation in Fenton-like catalysis. In this work, single-atom M-doped sulfur vacancies (S v )-MoS 2 (M = Co, Mn, Ni, Cu, and Zn) catalysts with atomic-level asymmetric M-S V -Mo sites are proposed for efficient PMS activation and the degradation of organic pollutants. Among these catalysts, the Co-S V -MoS 2 exhibited excellent catalytic activity and stability, resulting in a removal efficiency of ≈100% for Rhodamine B (RhB) within just 6 min. Density functional theory (DFT) calculations revealed the construction of asymmetric Co-S V -Mo sites effectively enhanced the electron density near the Fermi level, facilitated more electron transfer to PMS as well as lengthened the O–O bond of PMS, thereby significantly promoting the generation of ROS. This work provides a strategy for regulating atomic-level active sites and a novel perspective for developing advanced Fenton-like catalysts.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaohua Wang,Yanwei Li,Guang Sun,Jianliang Cao,Yan Wang
The pressing demand for environmental and health safeguarding has spurred intense enthusiasm among researchers to delve into metal oxide semiconductors (MOSs) based gas sensors. Particularly, the accurate detection of trace hydrogen sulfide (H₂S), which has drawn growing attention, has become a focal point. Herein, a molybdenum (Mo) doping strategy was presented to enhance the H₂S-sensitive properties of In₂O₃ nanomaterials to detect the presence of 1 ppm H₂S at comparatively lower temperatures. The Mo-doped In₂O₃ cubic nanoparticles (Mo-In₂O₃ CNPs) were synthesized through a hydrothermal route using In(OH) 3 as a precursor. When used as a sensitive material for the detection of H₂S, the Mo–In₂O₃ CNPs have shown some impressive improvements compared to pure In₂O₃ counterparts, including a reduction in working temperature (240 °C vs 300 °C), an increase in sensitivity (18.46 vs 11.34 for 20 ppm H₂S), a better selectivity (6.2 vs 2.84 times to ethanol), and a lower limit of detection (0.79 vs 0.47 ppm). Even to 1 ppm H₂S, the Mo-In₂O₃ sensor can give a response of 2.18, signifying its application feasibility in detecting trace amounts of H₂S. The multiple sensitization effects and their potential mechanism of Mo-In₂O₃ CNPs were discussed in detail.
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高影响因子
MOLECULES
·
2025
·Vol. 30
·期 7
·1639
·
IF 4.6
Hongrui Guo,Fan Yang,Siwei Chen,Hejuan Wu,Jirui Yang,Feng Shen
The production of formic acid (FA) from lignocellulose and its derived sugars represents a pivotal upgrading reaction in biorefinery. This work prepared a Mn-Mo doped carbon nanotube composite catalyst for the catalytic oxidation of glucose into FA in an O2atmosphere, under extremely low Mn (3.27%) and Mo (0.40%) loading conditions, displaying a comparable performance with the traditional vanadium-based catalyst suffering from toxicity issues. It was confirmed that the doping of Mo led to the formation of MnMoOXand increased the contents of low-valence Mn species (Mn2++ Mn3+), lattice oxygen (Olatt), and surface adsorbed oxygen (Oads) based on various characterization methods, such as XRD, XPS, TEM and ICP, which were beneficial to improve the catalytic performance. The maximum FA yield of 58.8% could be achieved over Mn9Mo1OX@MWCNT after reaction for 6 h at 140 °C, which was far more than that obtained with undoped MnOX@MWCNT (14.5%) at the identical conditions. Glyoxylic acid and arabinose were identified as two main intermediates, suggesting that the transformation of glucose into FA over Mn9Mo1OX@MWCNT involved two different paths. This work proved that manganese-based catalyst was a green alternative for upgrading lignocellulose via catalytic oxidation.
研究领域:
化学工程
·
生物化工
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hongtao Liu,Jiawei Wen,Lei Cao,Junlian Wang,Xin Wang,Guoyong Huang,Shengming Xu
Conventional phosphonic acid extractants such as bis (2-ethylhexyl) phosphate (P204) have only been used for cobalt extraction and perform poor separation efficiency. In this work, we propose a route to synergistically extract and separate Co, Mo, and V from spent hydrogenation catalysts by utilizing the modulating effect of ethanolamine (MEA) on phosphonic acid-based extractants, which eliminates the need for saponification and acidification of the extractants. The extraction mechanism of V, Co and Mo have been explained detailedly. By performing quantum chemical calculations on the surface properties of various amines, their metal extraction effects were predicted and validated using machine learning, laying the foundation for the design of synergistic extractants. The Co/Mo/V selective separation process was finally built with the aim of extracting cobalt first in the form of Co(RNH 2 ) 2 A 2 . At a P204 concentration of 25 %, MEA addition of 5 %, stirring time of 10 min, stirring rate of 400 rpm, the combined recoveries of the three metals Co, V and Mo reached 94.56 %, 85.60 % and 88.81 %, the separation factors β Co/Mo and β Co/V could be increased up to 44748.77 and 1174.04, respectively. It was also demonstrated that the extractant was also suitable for the selective extraction of Ni 2+ . This work provided fundamental research for the development of high-performance extraction systems.
研究领域:
化学工程
·
材料科学
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高影响因子
GREEN CHEMISTRY
·
2025
·
IF 9.2
Sheraz Muhammad,Bowen Yao,Aling Zhou,Zhiyang Huang,Sumayya Khan,Fengli Wei,Zuyang Luo,Tayirjan Taylor Isimjan,Xiulin Yang
Unlocking the full potential of metal-organic frameworks (MOFs) for water-splitting applications requires innovative strategies to enhance their catalytic efficiency and stability. Here, we introduce a Mo-doped Fe-based MOF (MoFe-NH2-BDC) with a unique 2D nanosheet and plate-like morphology to revolutionize the oxygen evolution reaction (OER). Mo incorporation optimizes electronic properties, accelerates charge transfer, and dynamically reconstructs the catalyst surface into highly active FeOOH species, ensuring long-term performance. This next-generation electrocatalyst achieves an ultra-low overpotential of 254 mV at 20 mA cm‒2, with a rapid Tafel slope of 66 mV dec‒1, surpassing conventional RuO2 catalysts. Operando Raman and ATR-FTIR spectroscopy reveal that Mo facilitates an adsorbate evolution mechanism (AEM), stabilizing intermediates and boosting reaction kinetics. In a practical two-electrode system, MoFe-NH2-BDC (+) || Pt/C (−) demonstrates an exceptional cell voltage of 1.58 V at 100 mA cm‒2, maintaining stability for 85 h. These results underscore the transformative impact of Mo doping in MOFs, paving the way for highly efficient, durable, and scalable electrocatalysts for sustainable energy applications.
研究领域:
材料科学
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电化学
·
能源技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Juanjuan Wang,Yuxuan Xiao,Jinxian Feng,Chunfa Liu,Lun Li,Youpeng Cao,Chengcheng Zhong,Ziwen Feng,Wendi Zhang,Zhi-Quan Liu,Hui Pan
The development of efficient and durable electrocatalysts for the hydrogen evolution reaction (HER) in alkaline media remains a major challenge due to sluggish reaction kinetics and structural instability of non-noble metal catalysts. Herein, we report a phosphorus-incorporated cobalt molybdate (CoMoO-P) catalyst for regulating the dynamic reconstruction process of Mo-based materials during alkaline HER. Notably, the incorporated P not only enhances electron density at Mo/Co active sites to optimize intermediate adsorption but also regulates the Mo leaching-redeposition dynamics, distinguishing from prior P-doping strategies with a focus solely on electronic modulation. Importantly, the controlled leaching of Mo facilitates the Co(OH) 2 formation that enhances HER kinetics. As a result, CoMoO-P delivers a low overpotential of 42 mV at 10 mA cm −2 and exhibits outstanding durability at various current densities of 100, 500, and 1 A cm −2 for total of 500 h. This study offers a promising strategy for regulating catalyst reconstruction and advancing the design of high-performance non-noble metal HER electrocatalysts.
研究领域:
电化学
·
材料科学
·
催化
·
能量转换
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yonggang Lei,Kim Hoong Ng,Yucheng Zhu,Yingzhen Zhang,Zengxing Li,Shen Xu,Jianying Huang,Jun Hu,Zhong Chen,Weilong Cai,Yuekun Lai
Seeking an efficient and stable cocatalyst is of importance for semiconductor-based photocatalytic water splitting to produce hydrogen. In this sense, Mo-activation of VC for better cocatalytic properties was proposed for the first time, aiming to attain improved hydrogen generation of CdS . Our novel, yet facile physical preparation method permits intimate coupling of Mo-activated VC cocatalyst to CdS (through electrostatic attraction force), thereby promises drastic activity enhancement for hydrogen generation. Results indicate the best VC-activating competency of Mo against other transition metals (Co, Fe, Ni, Zn and Cu), which induces highest H 2 productivity of CdS after modifying with Mo-activated VC. Under optimum setting, CdS/Mo(0.38)-VC(5 wt%) manifested highest photocatalytic hydrogen production rate of 2267 μmol h −1 g −1 , associated to 300 % and 440 % improvement as compared to that of CdS/VC(5 wt%) and pure CdS, respectively. Such activity also outperformed those that yielded by MoS x - or noble metals(Pt, Au or Ag)-co-catalyzed CdS, attributed to the promoted interfacial charges transfer and lowered overpotential of CdS/Mo(0.38)-VC(5 wt%) in hydrogen generation. Correspondingly, high apparent hydrogen production quantum efficiency of 4.3 % was also recorded by the same photocatalyst at 420 nm. In term of stability test, CdS/Mo(0.38)-VC(5 wt%) manifested excellent longevity in 24 h continuous photoreaction and fair recyclability over five consecutive photoreaction cycles. This work provides a new insight to cocatalysts design and synthesis, thereby realizing economic alternatives to precious metal (Pt, Au, Ag) in solar-derived H 2 production.
研究领域:
材料科学
·
化学工程
·
催化
·
可再生能源
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