ADVANCED FUNCTIONAL MATERIALS
·
2026
·Vol. 36
·期 80
·e78146
·
IF 19.9
Kai Liu,Lingzhi Gao,Yihan Liu,Zhichao Zhang,Yingjie Mao,Xing Gao,Denghui Xu,Jun Zhou
Low-dimensional Mn-based organic-inorganic metal halides (OIMHs) have attracted considerable interest for optoelectronic applications owing to their unique d–d electronic transitions, environmental friendliness, and structural tunability. Nevertheless, achieving simultaneous control over emission color and intensity within a single precursor system remains challenging. Herein, we propose a dual-dimensional compositional engineering strategy based on the same precursor (C 6 H 14 ClN) to synergistically tune the luminescence properties of Mn-based OIMHs via a combined computational-experimental approach. By simply varying the molar ratio of the organic amine salt to MnCl 2 and further adding raw materials to the as-obtained products, we achieve reversible switching between (C 6 H 14 N)MnCl 3 and (C 6 H 14 N) 3 MnCl 5 , accompanied by a transition in dimensionality from 1D) to 0D), a change in Mn 2+ coordination number from 5 to 4, and a corresponding emission color shift from red to green. Moreover, substituting Cl − with Br − optimizes the Mn···Mn distance, reducing energy transfer between Mn 2+ ions. This effect effectively suppresses non-radiative recombination induced by the heavy-atom effect, thereby significantly enhancing the green emission intensity of (C 6 H 14 N) 3 MnBr 5 . This work not only elucidates the composition-structure-luminescence relationship in low-dimensional Mn(II)-based OIMHs, but also provides clear compositional engineering guidelines for designing next-generation high-performance and emission color-tunable metal halides.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Guangwei Wu,Liu Yang,Bin Wang,Weiguo Tu,Hao Jiang,Xuejun Pan
Mn AOS controlled the partitioning of catechol interfacial redox pathways. • Low-Mn AOS birnessite sustained late-stage catechol depletion and Mn release. • Persistent organic radicals revealed single-electron transfer during catechol oxidation. • Radical accumulation was decoupled from catechol depletion and Mn release. • Anions and organic acids reshaped Mn AOS -dependent interfacial reactivity. Phenolic compounds are reactive components involved in organic carbon transformation and contaminant fate in soils and sediments. Manganese oxides are important natural oxidants, yet how the Mn average oxidation state (Mn AOS ) regulates phenolic interfacial oxidation on birnessite remains unclear. Here, four birnessite samples with different Mn AOS values were synthesized, and catechol was used as a representative o-diphenolic compound to probe Mn AOS -dependent interfacial redox processes. All samples retained the layered δ-MnO 2 phase, whereas decreasing Mn AOS from 3.39 to 3.28 altered layer stacking, pore structure, local Mn–O environments, and initial electrochemical responses. Catechol was rapidly depleted in all systems with simultaneous dissolved Mn release. HB3 and HB4 showed stronger sustained transformation in the middle-to-late stage, with C t /C 0 decreasing to 0.09 and 0.07 at 360 min, respectively, and dissolved Mn reaching 3.02 and 3.13 mg L −1 . EPR detected oxygen-centered semiquinone-like persistent organic radicals near g = 2.0046, but radical intensities were not fully synchronized with terminal catechol depletion or Mn release. Post-reaction Raman, FTIR, SEM, and XPS further indicated organic deposition, Mn valence reduction, and changes in the surface morphology and oxygen environment. Weakly alkaline conditions enhanced catechol transformation, whereas HCO 3 - , HPO 4 2- , and citric acid suppressed the reaction. Overall, Mn AOS -dependent differences were observed in the stage-dependent coupling among catechol transformation, dissolved Mn release, persistent organic radical accumulation, and surface evolution. These findings identify Mn AOS as an important descriptor of birnessite interfacial reactivity toward phenolic compounds. Download: Download high-res image (195KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2026
·
IF 15
Lan Haibo,Wu Zede,Xia Jinghua,Li Qiuyu,Gao Mengdan,Cai Zhuoxiu,Tan Weijing,Liu Minyi,Xu Ziting,Gao Yang,Zhang Li,Zhao Bingxia,Li Yingjia,Liang Yu
Introduction The efficacy of immunotherapy in triple-negative breast cancer (TNBC) is primarily challenged by its inherent low immunogenicity, which is further undermined by the immunosuppressive activity of tumor-associated polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs). The hypoxic microenvironment renders PMN-MDSCs susceptible to ferroptosis and exacerbates immunosuppression. Objectives This study aimed to design a multifunctional nanoplatform comprising Cu/Mn bimetallic metal-organic frameworks decorated with gold (Au) nanozymes (CMAP MOFs) that simultaneously enhances tumor immunogenicity and alleviates immunosuppression. Methods The characteristics of the nanosystem were evaluated using transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and ultraviolet-visible spectrophotometry. In vitro experiments employed Western blotting, immunofluorescence, and flow cytometry to investigate the mechanisms of enhanced immunogenicity and alleviated immunosuppression in 4T1 cells. In vivo experiments evaluated the therapeutic efficacy of the nanosystem in BALB/c mice bearing implanted 4T1 tumors. Results Within tumor cells, the CMAP MOFs undergo GSH-responsive disintegration. The released Cu/Mn ions catalyze Fenton-like reaction to induce tumor cell ferroptosis and mitochondrial DNA damage, activating cGAS-STING pathway, and facilitating CD8 + T cells recruitment. Simultaneously, released Au nanozymes catalyze H 2 O 2 conversion to O 2 , alleviating hypoxia and preventing PMN-MDSCs ferroptosis and associated immunosuppression. While the immunogenicity-enhancing CMP MOFs group increased CD8⁺ T cell infiltration from 21% to 28.3% with 74.1% tumor growth inhibition, the combined immunogenicity enhancement and immunosuppression relief CMAP MOFs group further boosted CD8⁺ T cell infiltration to 32.4% with superior tumor growth inhibition of 81.3%, with IFN-γ and GZMB expression elevated by 2.2-fold and 2.0-fold (CMP MOFs) and 3.4-fold and 3.0-fold (CMAP MOFs) compared to control. This strategy offers a promising approach for enhancing immunotherapy in TNBC patients. Graphical The alternative text for this image may have been generated using AI.
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Shuai Li,Baoguo Lv,Haiming Lv,Xiao Liu,Lihong Wu,Lianwang Shan,Yongxin Qian,Daguang Li,Rui Wang,Guizhen Wang
The high-entropy concept has been widely recognized as a promising strategy for enhancing microwave absorption (MA) performance. However, systematic studies on how crystallinity affects the MA behavior of high-entropy materials remain scarce, limiting further performance optimization. In this context, nanoflower-structured high-entropy CoZnCdCuMn sulfide ceramics with different crystallinities were prepared via solvothermal synthesis and post-annealing, revealing a nonmonotonic crystallinity-dependent MA behavior. Among the samples, CoZnCdCuMnS-500 with intermediate crystallinity achieves an optimal balance between dielectric loss and impedance matching, delivering superior MA performance with a minimum reflection loss of −50.79 dB. Furthermore, CoZnCdCuMnS-500 was incorporated into a polymer matrix to fabricate a composite film, which exhibits rapid photothermal response and good cycling stability, highlighting its potential for electromagnetic protection in cold and complex environments. This work elucidates the critical role of crystallization state in governing the MA performance of high-entropy sulfides and provides new insights into the structural design and performance optimization of microwave absorbers.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Yu Liao,Yaowei Liu,Yang Li,Linjuan Zhang,Jian-Qiang Wang,Sivaprakash Sengodan,Bingbing Niu,Guntae Kim
Carbon capture, utilization, and storage (CCUS) is recognized as a critical pathway for decarbonization, but current approaches are limited by energy-intensive operation and suboptimal conversion efficiency. In this context, the Zn-CO2 system holds immense promise for simultaneous electricity generation, green hydrogen production, and efficient CO2 utilization. However, further improvement of the overall system efficiency hinges on enhancing the hydrogen evolution reaction (HER) in quasi-neutral media. Herein, we report a Mn-doped cobalt phosphide (Mn-CoP/NF) catalyst grown on nickel foam via a facile one-step electrodeposition, designed to promote water dissociation and enhance HER activity in neutral electrolytes. Structural characterizations reveal that Mn doping induces an amorphous transformation with a cauliflower-like morphology, markedly increasing the electrochemical active surface area (ECSA) and exposing abundant active sites. XPS analysis further confirms that Mn functions as an electron donor, generating electron-rich Co/P surfaces that favor optimized adsorption of reaction intermediates. Kinetic analysis demonstrates that the incorporation of oxyphilic Mn substantially lowers the Tafel slope from 158.7 mV dec -1 to 62.0 mV dec -1 , evidencing accelerated water dissociation in the Volmer step. Density functional theory (DFT) calculations reveal that Mn incorporation lowers the water dissociation energy barrier and optimizes the hydrogen adsorption free energy (ΔGH*). Consequently, the Mn-CoP/NF catalyst exhibits outstanding HER activity in saturated KHCO3 solution, with an overpotential of 149.9 mV at 50 mA cm-2 , similar to commercial 1 mg cm-2 Pt/C (146.4 mV). Furthermore, the Zn-CO2 system assembled with Mn-CoP/NF as the HER electrode achieves a maximum current density of 378 mA cm -2 and sustains stable operation for over 300 hours at -100 mA cm-2 .
✓ 已验证
DOI
高影响因子
International Journal of Applied Ceramic Technology
·
2026
·Vol. 23
·期 3
·e70215
·
IF 2.6
Yu Fu,Sheng Jiang,Biao Wu,Xiaoli Deng,Xiaochun Wang
Ceramic metallization provides an effective insulation strategy for reversible solid oxide cell (RSOC) pipeline connections that are prone to side short-circuiting. In this work, 95 wt.% Al 2 O 3 ceramics were metallized by the activated Mo–Mn method, and 15 metallization formulations with different Mo, MnO, Al 2 O 3 , and SiO 2 contents were designed to optimize the microstructure, phase composition, and bonding strength of the metallized layer. The results show that, after sintering at 1400°C for 1 h, the optimal formulation consists of 70 wt.% Mo, 9 wt.% MnO, 6.3 wt.% Al 2 O 3 , and 14.7 wt.% SiO 2 . Under this condition, the Mo skeleton is continuous, the activator melt forms a glassy phase, and a reliable transition layer is developed at the ceramic/metallization interface, yielding a shear strength of 146.3 MPa. Electroless Ni–P post-plating on the optimized metallized surface produces a dense and continuous coating with typical nodular morphology and an average thickness of about 15–17 µm. The plated layer exhibits a relatively uniform hardness of 382.84 HV and maintains good structural integrity after 300 thermal-shock cycles, demonstrating promising potential for RSOC-related ceramic-to-metal insulating connection components.
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Maohan Liu,Lingyi Kong,Xinyu Zhang,Yaping Yan,Haiyan Hu,Hanshen Xin,Jiayang Li,Yubin Niu,Yanfang Zhu,Yao Xiao
Construction of a structurally compatible Na 0.44 MnO 2 -derived interphase for enhanced interfacial stability and Na + transport kinetics. • In situ SXRD and XAS analyses reveal a reversible P2-OP4-P2 phase evolution and a stabilized Mn-centered local coordination environment. • The optimized material suppresses moisture/CO 2 -induced surface carbonation, Na + /H + exchange, and hydrated-phase formation, thereby markedly enhancing its air stability. • Elucidating the multiscale mechanisms of surface structural regulation for modulating structural evolution, local coordination environments, and air stability. Mn-based layered oxides are attractive cathode candidates for sodium-ion batteries (SIBs) because of their high capacity, cost effectiveness, elemental abundance, and scalable synthesis. However, their practical implementation is hindered by moisture/CO 2 -induced surface degradation, surface residual alkali accumulation, sluggish Na + transport kinetics, and unstable interfacial chemistry. Herein, Na 0.55 Ni 0.1 Fe 0.1 Mn 0.8 O 2 (NNFM) is selected as a model Mn-based layered oxide cathode to establish a residual-alkali-conversion-driven surface structural regulation strategy. Owing to the formation of a structurally compatible and chemically stable interphase, the optimized Na 0.55 Ni 0.1 Fe 0.1 Mn 0.8 O 2 @5%Na 0.44 MnO 2 (NNFM-T5) delivers a specific capacity of 197.14 mAh g −1 at 0.1C and an energy density of 556.9 Wh kg −1 based on the cathode active-material mass, demonstrating excellent electrochemical performance. NNFM-T5 also exhibits a reversible P2-OP4-P2 structural evolution, reduced interfacial polarization, and accelerated Na + transport kinetics, as evidenced by operando in situ synchrotron X-ray diffraction and distribution of relaxation times analysis. In addition, ex situ X-ray absorption spectroscopy indicates reversible Ni-centered redox, limited Fe valence variation, and stabilized Mn-centered coordination. Air-aging experiments and dynamic contact angle measurements further verify the improved air tolerance of NNFM-T5. This work shifts the focus of surface modification from empirical coating toward residual-alkali-conversion-driven surface structural regulation, providing a design principle for Mn-based layered oxide cathodes that combine high capacity, air stability, and favorable interfacial kinetics. A surface structural regulation strategy based on residual alkali conversion is developed for Mn-based layered oxide cathodes, enabling the construction of a Na 0.44 MnO 2 -derived interphase. This strategy significantly enhances the structural stability, air stability, and Na + transport kinetics of the material, providing an effective approach for the design of high-energy-density layered oxide cathodes for sodium-ion batteries. Download: Download high-res image (176KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Rongyang Cheng,Huijie Lu,Zhengyang Li,Xuan Ai,Yuanyuan Wu,Feifan Guo
A Mn-doped RuO 2 /Ru heterojunction was synthesized, featuring Mn-RuO 2 nanoparticles anchored onto metallic Ru nanospheres. • Through the interfacial charge transfer from Ru to RuO 2 effectively suppresses the formation of soluble RuO 4 2− species. • Mn doping further optimizes the electron density at the ruthenium sites, endowing them with an appropriate adsorption configuration. • The weakened Ru O bond covalency is key to inhibit the degradative LOM pathway in favor of the more stable AEM. • The Mn-RuO 2 /Ru demonstrates superior performance in 0.5 M H 2 SO 4 , requiring ultra-low overpotentials for OER and HER. The development of efficient and durable electrocatalysts for acidic water splitting is paramount for the advancement of sustainable energy conversion technologies. However, the inherent activity-stability trade-off in non‑iridium-based catalysts remains a formidable barrier to commercial deployment. Herein, a Mn-doped RuO 2 /Ru heterojunction catalyst was synthesized by precisely anchoring Mn-doped RuO 2 nanoparticles onto metallic Ru nanospheres. The resulting interfacial electronic modulation facilitates electron transfer from Ru to RuO 2 , thereby stabilizing the high-valent ruthenium intermediates. Simultaneously, Mn doping optimizes the electron density at the Ru active centers to ensure ideal adsorption configurations for reaction intermediates. Evaluated in 0.5 M H 2 SO 4 , the bifunctional Mn-RuO 2 /Ru catalyst exhibits exceptional electrocatalytic performance, requiring ultra-low overpotentials of only 192 and 52 mV to deliver 10 mA cm −2 for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively. Notably, the catalyst sustains continuous OER operation for over 100 h with negligible degradation, demonstrating remarkable structural integrity in highly corrosive media. Density functional theory (DFT) calculations unveil a dual-regulation mechanism. The synergy between the RuO 2 /Ru interface and Mn dopants downshifts the Ru d -band center to balance intermediate adsorption, while simultaneously suppressing the unstable lattice oxygen mechanism (LOM) by weakening Ru O bond covalency. When integrated into a symmetric acidic electrolyzer (Mn-RuO 2 /Ru||Mn-RuO 2 /Ru), a cell voltage of just 1.50 V is required to reach 10 mA cm −2 , significantly outperforming the commercial Pt/C||RuO 2 benchmark. This work provides a robust electronic engineering strategy for designing sustainable, high-performance noble-metal-lean catalysts for acidic water splitting. The synergy of the heterointerface and Mn dopants optimizes Ru’s electronic structure, preventing over-oxidation and suppressing lattice-oxygen participation, thereby enabling exceptional acidic water splitting performance. Download: Download high-res image (130KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2026
·Vol. 27
·期 15
·6704
·
IF 5.6
Tao Wu,Chaoyang Shi,Chenyang Liu,Chenjie Qin,Jiangshan Wang,Yating Pang,Wenjun Gong,Wenming Wang,Hongfei Wang
Two tri-carbonyl complexes, [Mn(CO)3(5cpa)Br] (1) and [Re(CO)3(5cqn)(OCH3)] (2), were synthesized, where 5cpa is 5-Cl-2-picolinic acid and 5cqn is 5-Cl-8-Hydroxyquinoline. Their structures were determined using X-ray diffraction techniques. The electronic absorption and IR spectra of the complexes were experimentally measured and theoretically assigned through density functional theory (DFT) calculations. The photo-induced CO release was verified using time-resolved infrared spectroscopy, and the transfer of CO to hemoglobin (Hb) was monitored by UV-vis spectroscopy. The rate of CO release and transfer from Mn complex1is significantly faster than that from Re complex2. Complex2exhibits higher cytotoxicity against HeLa cells than complex1, with IC50values of 40.1 μM and 10.6 μM for1and2, respectively, which decrease to 16.2 μM and 4.9 μM after photo irradiation. Moreover,1exhibited a stronger binding constant (Kb) with human serum albumin (HSA) than2, with values of 1.6 × 106and 7.0 × 105M−1, respectively. The structures of HSA complex adducts revealed that both the resulting [Mn(CO)3(5cpa)]−and [Re(CO)3(5cqn)]−group coordinate with the N atom of His146, while four additional dissociated Mn-CO groups were observed to bind to HSA for complex1. This study provides insights into the stability, possible metabolic pathways, and potential applications of these carbonyl complexes.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Crystals
·
2025
·Vol. 15
·期 6
·563
·
IF 2.4
Jinyi Wang,Bowen Fan,Jincheng Yu,Mengqiong Huang,Jiana Song,Zhaokun Yang,Yuan Ji
Single-phase ternary Mn-Cu-Al alloy ribbons were fabricated by melt-spinning a Mn48Cu28Al24ingot on a rotating copper roller. They were used as dealloying precursor for forming the nanoporous structure in HCl solution. The basic dealloying behavior was examined by controlling the dealloying time from 5 min to 180 min at 50 °C. Due to the active chemical property, Mn and Al elements are easily etched in acid solutions. Meanwhile, Cu elements retained and rearranged. A three-dimensional bicontinous nanoporous structure was fabricated, with a ligament size of 55 nm~100 nm and pore size of 35 nm~85 nm. The porosity evolution of dealloyed MnCuAl alloy was divided into three stages. First, the dissolution of Mn and Al is so significant that formation of pores is dominant. Stage two, the rapid growth of both ligament size and pore size. The ligament/pore ratio is nearly unchanged. The last stage is ligament coarsening. Moreover, the electrocatalytic activity for glucose oxidation of dealloyed samples is examined. The 40 min dealloyed MnCuAl ribbon exhibited the highest sensitivity and relatively maximum current density.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Kailin Fu,Weijian Chen,Jianmin Liu,Jian Liang
Perovskite oxides are increasingly recognized as cost-effective catalytic materials for facilitating both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) at the air-electrode electrode of Zn-air batteries (ZABs) and fuel cells. In this study, we have employed a non-hydrolytic sol-gel (NHSG) technique to synthesize La 0.8 Sr 0.2 Co 0.8 X 0.2 O 3-δ (X = Fe, Mn, and Ni) perovskite nanoparticles at a low temperature of 600 °C. Among these perovskite oxides, La 0.8 Sr 0.2 Co 0.8 Fe 0.2 O 3-δ (LSCFO) exhibited the highest specific surface area of 12.68 m 2 g −1 and possessed the greatest number of oxygen vacancies. Specifically, it achieved a higher half-wave potential of 0.657 V for ORR. Meanwhile, it exhibited a lower OER overpotential of 418 mV at a current density of 10 mA cm −2 , along with the smallest ΔE value of 0.991 V. When utilized as an air electrode catalyst for ZABs, LSCFO exhibits a high peak power density of 152.2 mW cm −2 and remarkable long-term cycling stability (100 h at 2 mA cm −2 ), which are close to the performance metrics of commercial Pt/C + RuO 2 catalysts. This study demonstrates the potential to enhance the bifunctional catalytic activity of LaCoO 3 -based perovskite air electrodes for ZABs through a straightforward doping approach within a NHSG process.
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Liang Guo,Huifang Li,Xiaoying Wang,Yuzhen Jia,Huaixia Yang,Xiaoke Zheng
Acetamiprid (ACE), a typical neonicotinoid pesticide, has raised significant environmental and food safety concerns due to its persistent residues. Herein, we developed a fluorescent/colorimetric dual-mode sensor based on bifunctional Mn-doped carbon dots (Mn-CDs). The Mn doping strategy generates abundant catalytically active sites, not only endowing oxidase-like activity, which can catalyze colorless 3,3′,5,5′-tetramethylbenzidine (TMB) to blue products, while simultaneously retaining the intrinsic fluorescence property. Magnetic beads (MBs) conjugated with ACE aptamer (Apt) (MBs@Apt) and Mn-CDs conjugated with DNA1 (Mn-CDs@DNA1) were engineered for hybridization. Upon ACE addition, it will trigger competitive displacement of Mn-CDs@DNA1 from MBs, inducing simultaneous colorimetric and fluorescent signal changes. This displacement mechanism enables dual-mode ACE quantification with high sensitivity (LOD = 15.36 fg/mL for fluorescence mode and 57.54 fg/mL for colorimetric mode) and selectivity. The sensor achieves reliable detection in complex matrices, providing a rapid, high-performance solution for pesticide monitoring.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）