APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Wenlu Zhang,Yaning Fu,Zhen Feng,Mengyao Huang,Youcai Lu,Qingchao Liu
Mn doping creates symmetry-broken Co δ+ -O-Ru δ− heterointerfaces. • Polarized Ru and Co sites enable catalytic shunting of ORR and OER. • Reversible metal-oxygen bond adaptation accelerates Li 2 O 2 conversion. • The catalyst delivers an ultralow discharge-charge overpotential of 0.37 V. • Li-O 2 cells reach 34,738 mAh g −1 and cycle stably for 208 cycles. Aprotic Li-O 2 batteries require efficient bifunctional oxygen electrocatalysis, yet ORR and OER impose conflicting demands on oxygen-intermediate adsorption and product desorption. Herein, we construct a symmetry-broken Mn-doped Co 3 O 4 /RuO 2 heterointerface on carbon cloth to couple catalytic shunting with self-adaptive interfacial bonding. Mn incorporation reinforces Co-O-Ru coupling and generates asymmetric Co δ⁺ -O-Ru δ⁻ units, as verified by XPS, XAS, and theoretical calculations. The resulting interfacial polarization spatially divides the oxygen-redox pathway: electron-enriched Ru sites preferentially promote O₂ adsorption/activation for ORR, whereas electron-deficient Co sites facilitate Li₂O₂ decomposition/desorption for OER. Meanwhile, in situ Raman spectroscopy and theoretical bond-length analysis reveal reversible metal-oxygen bond elongation/contraction during discharge/charge, enabling temporal adaptation of interfacial bonding to evolving intermediates. This spatial shunting and temporal self-adaptation synergistically mitigate the adsorption-desorption conflict, improve Li 2 O 2 reversibility, and maintain efficient charge-transfer pathways. Consequently, the Mn-Co 3 O 4 /RuO 2 cathode achieves a low overpotential of 0.37 V, a high discharge capacity of 34,781 mAh g −1 , and stable cycling for 208 cycles. This study provides a shunt-adaptive heterointerface strategy for multistep oxygen electrocatalysis. Download: Download high-res image (275KB) Download: Download full-size image
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高影响因子
JOURNAL OF CATALYSIS
·
2026
·
IF 6
Shaozhi Liu,Honggang Zhang,Zeyan Wang,Hefeng Cheng,Peng Wang,Zhaoke Zheng,Ying Dai,Baibiao Huang,Yuanyuan Liu
Catalytic ozonation offers a promising approach for removing perfluorinated compounds, yet developing catalysts with both high activity and stability remains a great challenge due to severe metal ions leaching. Herein, we design a Mn single atom decorated γ-AlOOH catalyst (denoted as Mn x /γ-AlOOH), which displays efficient catalytic ozonation towards perfluorooctanoic acid (PFOA) removal. Under optimal conditions, Mn 2.2 /γ-AlOOH achieves a defluorination ratio of 99.39% after 15 h of catalytic ozonation process, with a distinctive low leaching percentage (0.52% for Mn and 0.21% for Al, compared to 10.44% for Mn leaching from MnO 2 and 0.95% for Al leaching from γ-AlOOH). Comprehensive analysis indicates that the introduction of Mn single atom optimizes the electronic structure and provides an additional indirect electron transfer pathway, which not only facilitates O 3 activation, but also reduces Mn ion leaching by decreasing electron loss, and simultaneously enhances the activity and stability of the catalyst. This work provides new insights into enhancing the activity and stability of catalysts during the catalytic ozonation process via the rational design of atomically dispersed sites.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Congling Yang,Qianying Guo,Xiaobo Gong,Yong Liu
Piezocatalysis holds great potential for advanced oxidation processes (AOPs), yet the practical application of conventional powder catalysts is severely hindered by their poor recoverability and reusability. To overcome the limitation, a polyvinylidene fluoride (PVDF)-based piezocatalytic nanofibrous membrane embedded with manganese-doped bismuth sodium titanate (BNMT) was fabricated via electrospinning, with polyethylene glycol (PEG) incorporated as a hydrophilicity enhancer under sonication. Under ultrasound-assisted peroxymonosulfate (PMS) activation in a continuous-flow system, the optimized membrane (0.3B-PEG-PVDF) achieved 90.7 % degradation of tetracycline hydrochloride (TC, 10 mg/L) within 60 min. Quenching experiments and electron paramagnetic resonance spectroscopy revealed a unique mixed radical/non-radical pathway, with singlet oxygen ( 1 O 2 ) and hydroxyl radical (•OH) as the dominant reactive species. The piezocatalytic membrane maintained over 77 % TC removal after eight consecutive cycles, with negligible metal leaching and excellent anti-interference performance in real water matrices. This work provides a facile strategy for constructing efficient, recyclable piezocatalytic membranes and advances the practical application in continuous-flow wastewater treatment.
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Journal of Energy Storage
·
2026
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IF 10.7
Tingting Wei,Jiemin Dong,Xu Cheng,Yanhua Zhang,Jiaxin Zhang,Ming Liang,Jianfeng Li,Ting-Feng Yi
The Fe–Cu–Mn based layered oxides have gained considerable attention as particularly promising cathode materials for sodium-ion batteries (SIBs) due to their low cost, earth abundance, and favorable electrochemical properties. However, current research often treats this system as a unified matrix, which obscures the specific contributions of the individual Fe, Cu, and Mn components in determining structural stability and electrochemical performance. Herein, we systematically investigate the ternary Fe–Cu–Mn system without the addition of extraneous elements. By precisely tuning the stoichiometric ratios of Fe, Cu, and Mn within a Mn-rich layered framework, a direct correlation is established between composition, structure, and electrochemical behavior. It reveals that optimizing the Fe/Cu/Mn ratio effectively suppresses undesirable phase transitions, enhances structural stability, and results in superior electrochemical performance. The Na 0.70 Fe 0.15 Cu 0.15 Mn 0.70 O 2 (NFCM-0.70) cathode delivers a high initial energy density of 293.87 Wh kg −1 (based on the mass of the cathode) and presents the excellent capacity retention of 82.9% after 100 cycles at 0.2C. This work underscores the importance of rationally controlling intrinsic component ratios as a strategy for developing low-cost, high-performance layered oxide cathodes for SIBs.
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INORGANIC CHEMISTRY
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2025
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IF 4.7
Jinhua Rao,Wenhui Qin,Julian Lava,Junsheng Chen,Xin Mao,Meishan Wang,Ruiling Zhang
Low-dimensional metal halide perovskites have emerged as a promising class of high-performance phosphors for solid-state lighting applications, owing to their outstanding optical properties, structural diversity, and low-cost solution processability. Here, we report a Mn2+-doped two-dimensional (2D) cadmium chloride perovskite, Mn2+:(EDA)CdCl4 (EDA: ethylenediamine), that achieves highly efficient orange light emission with a near-unity photoluminescence quantum yield (PLQY). The host (EDA)CdCl4 can emit an unusual ultraviolet emission at 320 nm with a PLQY of 51%, associated with Cd vacancy defects. Upon incorporation of Mn ions into the host lattice, an intense broad orange emission emerges at 610 nm with a PLQY of 97% at 265 nm excitation, originating from the spin-forbidden 4T1(G) → 6A1(S) transition of isolated Mn ions. Theoretical calculations and spectroscopic characterizations reveal that efficient electron transfer from the host to Mn contributes to the highly efficient orange emission, giving the doped samples great potential in WLED applications.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
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IF 5.6
Guanyu Zhu,Feifeng Huang,Yuqing Yan,Shilong Zhao,Huanping Wang,Degang Deng,Shiqing Xu
Developing anti-counterfeiting materials that are easy to identify and difficult to imitate, as well as temperature-sensitive materials with high sensitivity and a wide detection range, remains a significant challenge—particularly for luminescent materials that integrate both functionalities. Herein, a series of CaSb 2 O 6 : Bi, Mn phosphors were synthesized by high-temperature solid-phase method, integrating multi-color dynamic anti-counterfeiting capability with multi-mode optical temperature sensing. By doping Bi 3+ ions, the blue light emission of Bi 3+ ions completely overlaps with the self-activated emission of the CaSb 2 O 6 host, greatly enhancing the blue light emission of the host. In addition, when Mn 2+ ions are added, due to the incomplete oxidation of Mn 2+ during the preparation process, both Mn 2+ and Mn 4+ ions coexist within the host. Under UV excitation, the CaSb 2 O 6 : Bi, Mn phosphors exhibit multi-color emission of cyan-green, blue, purple, and magenta, accompanied by persistent green emission originating from Mn 2+ ions, offering a potential approach for dynamic anti-counterfeiting applications. The temperature sensitivity characteristics of the phosphors were investigated based on the fluorescence intensity ratio technique, and a maximum relative sensitivity of 1.56 % K −1 was obtained at 383 K. Taking advantage of these material properties, an integrated dynamic anti-counterfeiting and encryption system was engineered, and a fiber-optic temperature sensing platform was established to monitor the real-time temperature of an electric hand warmer.
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Nanomaterials
·
2025
·Vol. 15
·期 12
·893
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IF 4.3
Danyang Li,Can Liu,Shu Zhao,Fujie Li,Hao Li,Chao Wang,Xiu Song Zhao
Na-layered Li-containing Mn-based cathodes (NaxLiyMn1-yO2, NLMOs) with additional Na+storage ability resulting from the anionic redox reaction (ARR) hold great promise for sodium-ion batteries (NIBs). However, practical applications of NLMOs encounter challenges, such as migration of transition metal Mn, loss of lattice oxygen, and voltage decay during cycling. Here, we show that Cu plays an important role in enhancing the ARR via the reductive coupling mechanism (RCM). Results shows that a Cu2+/Fe3+modified NLMO sample delivers a Na+storage capacity as high as 174 mA h g−1at 0.2C, higher than that of a Zn2+/Fe3+modified NLMO sample (130 mA h g−1) and NLMO (154 mA h g−1). Both in situ and ex situ characterization results indicate that the obvious improvement in the electrochemical performance of the Cu2+/Fe3+modified NLMO is due to the additional overlaps between the Cu 3d and O 2p orbitals, which is beneficial for the RCM. As a result, the ARR is enhanced so as to increase the Na+storage capacity.
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高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
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2026
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IF 4
Xiaoxue Jiang,You Wu,Jing Kong,Xiaobing Wang,Yu Zhao,Hao He,Tao Wu
Polyacrylamide (PAM), a major component of polymer-containing wastewater, is challenging to degrade due to its high viscosity. This study investigates the synergistic degradation of PAM using non-equilibrium plasma generated by a dielectric barrier discharge (DBD) reactor in combination with a Mn+Ce/AC composite catalyst. PAM solution was employed to simulate industrial wastewater, and degradation mechanisms were probed via Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), and X-ray Diffraction (XRD) analyses. Results demonstrate that the Mn+Ce/AC catalyst significantly enhances reactive species generation, accelerating PAM removal while reducing energy consumption. Increasing catalyst dosage led to rapid decreases in pH and viscosity, alongside improvements in electrical conductivity and energy efficiency. Under optimal conditions (21 kV, 200 mL/min, 180 mg catalyst), degradation efficiency reached 94.4% at 120 minutes, exceeding plasma-alone treatment by 10.3%. The viscosity of the PAM solution was reduced by up to 93% within 30 minutes, compared to 55.6% in the control group. Characterization analyses confirmed that the catalyst retained its structural integrity and functional stability, which could be further enhanced by optimizing the Mn/Ce ratio. This work demonstrates that plasma-assisted Mn+Ce/AC catalysis offers an efficient, energy-saving, and scalable strategy for polymer-containing wastewater treatment, providing mechanistic insights into catalyst-assisted plasma degradation processes.
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高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2026
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IF 5.9
Zhiming Zhao,Mingjiang Luo,Liquan Li,Zhihong Xiao
The osteomyelitis induced by methicillin-resistant Staphylococcus aureus (MRSA) remains a formidable clinical challenge due to persistent bacterial infection, chronic inflammation, and impaired bone regeneration. Herein, a multi-functional nanoplatform is prepared by manganese-based porphyrinic metal-organic frameworks (PCN-222(Mn)) modified with curcumin (Cur) for treating bacterial osteomyelitis. The resulting PCN-222(Mn)-Cur nanoparticles exhibit effective sonodynamic antibacterial activity by rapid reactive oxygen species generation, which also has a synergistic effect (antimicrobial rate of 99.98 %) with long-term antibacterial efficiency of curcumin. Besides, the effective cascade anti-oxidation reaction of PCN-222(Mn) can be achieved by superoxide dismutase- and catalase-like activities owing to the MnN 4 active site. In a rat tibial osteomyelitis model, compared with antibiotic therapy, the ultrasound-activated PCN-222(Mn)-Cur platform exhibits superior antibacterial efficacy against MRSA, coupled with synergistic anti-inflammatory effects and promoted osteogenic regeneration capacity. In summary, this biosafe nanoplatform demonstrates excellent bacterial-killing, anti-inflammation, and osteogenesis, offering a prospect for treating refractory bacterial bone infections.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·Vol. 50
·期 22
·44876-44882
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IF 5.1
Xiaqing Jiang,Zhangwen Long,Hao Song,Jingjing Li,Junyi Yang,Yuting Wu,Dacheng Zhou,Yong Yang,Qi Wang,Jianbei Qiu
The orange-red phosphor, which combines persistent luminescence and mechanoluminescence , holds significant importance in advanced bioimaging and optical anti-counterfeiting. However, there are relatively few reports on this type of material currently. In this study, doping CaAl 2 Si 2 O 8 : Mn 2+ phosphor with Pr 3+ ions significantly increases the material's defect density. Under X-ray/UV excitation, the sample displays exceptional orange-red persistent luminescence and superior mechanoluminescence. More importantly, the samples exhibit the above properties in all temperature regions (including low temperature, room temperature (RT) and high temperature). Additionally, the material demonstrates excellent tissue penetration capabilities and dual-mode luminescence (persistent luminescence and mechanoluminescence), highlighting its potential for bioimaging and optical anti-counterfeiting applications.
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高影响因子
Journal of Environmental Sciences
·
2024
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IF 5.9
Xixian Huang,Bing Yang,Ye Dou,Yang Ding
The abiotic oxidation of divalent manganese (Mn(II)) and the formation of Mn oxides are important geochemical processes, which control the mobility and availability of Mn as well as element cycling and pollutant behavior in soils. It was found that iron (oxyhydr)oxides can catalyze Mn(II) oxidation , but the effects of the coexisting dissolved organic matter (DOM) molecules on the catalysis of different iron (oxyhydr)oxides for Mn(II) oxidation are poorly understood. Herein, we investigated Mn(II) oxidation under the impacts of the interactions between iron (oxyhydr)oxides (i.e., ferrihydrite, goethite and hematite) and DOM molecules. Simultaneously, we elucidated the variations of DOM composition and properties. Our results indicated that the catalysis of iron (oxyhydr)oxides for Mn(II) oxidation was significantly inhibited by DOM. Moreover, DOM had less inhibiting effect on the catalysis of ferrihydrite for Mn(II) oxidation and the formation of Mn oxides (e.g., hausmannite and buserite) relative to goethite and hematite, which was partially because of the higher electron transfer capacities of ferrihydrite. Meanwhile, DOM molecules with high nominal oxidation state of carbon (NOSC), molecular weight, unsaturation and aromaticity were selectively adsorbed and oxidized by Mn oxides , including the oxygenated phenols and polyphenols. The newly formed molecules mainly belonged to phenols depleted of oxygen and aliphatics. Furthermore, NOSC was a key molecular characteristic for controlling DOM composition during DOM adsorption and oxidation by Mn oxides when iron minerals were present. Overall, our research contributes to understanding Mn(II) oxidation mechanisms under heterogeneous systems and behaviors of DOM molecules in the environment.
研究领域:
环境地球化学
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土壤化学
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水文地球化学
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有机-矿物相互作用
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元素生物地球化学循环
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 28
·28808-28816
·
IF 2.914
Duo Yankai,Wang Xiaoping,He Jinjia,Zhang Shihan,Pan Hua,Chen Jianmeng,Chen Jun
The effect of Mn powder addition on the simultaneous removal of SO 2 and NO coupled with Fe II (EDTA) absorption was investigated in this work. In the NO absorption system with Fe II (EDTA), SO 2 reduced Fe II (EDTA)-NO to Fe II (EDTA) with a reduction efficiency reaching 88.5% under the conditions of 4000 mg/m 3 SO 2 , pH 8.0, 44 °C, and the flow rate of 1.2 L/min within 60 min. Introducing 0.1 M Mn powder with SO 2 increased the Fe II (EDTA)-NO reduction efficiency to 96.8% within 5 min. SO 2 was also removed by reducing Fe II (EDTA)-NO and converted into SO 4 2- at a removal efficiency of 100%. After adding Mn powder, NO was removed through the following reaction: \( 5\mathrm{Mn}+2{\mathrm{Fe}}^{\mathrm{II}}\left(\mathrm{EDTA}\right)-\mathrm{NO}+12{\mathrm{H}}^{+}\longrightarrow 2{\mathrm{Fe}}^{\mathrm{II}}\left(\mathrm{EDTA}\right)+5{\mathrm{Mn}}^{2+}+2{\mathrm{NH}}_4^{+}+2{\mathrm{H}}_2\mathrm{O} \) . Mn powder functioned as a reductant to regenerate the absorption of solution, and the coordinated NO in Fe II (EDTA)-NO was reduced to NH 4 + . The resource utilization rate of N reached approximately 77.2%. The integrated technology is a potential solution for flue gas treatment in industrial sectors with coal-fired power plants and industrial boiler.
Graphical abstract
研究领域:
环境工程
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化学工程
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污染控制技术
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