APPLIED CATALYSIS A-GENERAL
·
2023
·
IF 5.5
Hong Liang,Qiang Zheng,Kaibin Zhang,Youli Yang,Ran He
Mesoporous 10CeO x /MnO x -Y catalysts were successfully prepared by doping Ce and calcining Mn-BTC (BTC = 1,3,5-benzenetricarboxylate) for ozone catalytic decomposition. The 10CeO x /MnO x -300 catalyst exhibited the highest catalytic activity under the relative humidity (RH) range from less than 5–65 %, giving 100 % conversion of 40 ppm O 3 after 6 h. Series of physicochemical characterizations including XRD, TG, SEM, HR-TEM, ICP-OES, BET, XPS and H 2 -TPR were introduced the relationship of calcination temperature, catalysts structure and ozone catalytic performance. The results demonstrated that the 10CeO x /MnO x -300 catalyst had the highest Mn 3+ /Mn 4+ and O ads /O latt ratios and the largest specific surface compared with those of other samples, which are crucial to decompose ozone. In addition, better dispersion of crystals, larger pore volume, more oxygen vacancies, and better low-temperature reducibility are also conducive to ozone decomposition. This research establishes the basis for the application of manganese-based MOFs for ozone decomposition.
研究领域:
环境科学
·
催化化学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 8.3
Feidie Li,Zhishuncheng Li,Qiangli Lv,Lin Lv,Hua Wang,Tao Zhu,Xing Zhu,Kongzhai Li,Zhishan Li
Urea-assisted overall water splitting has emerged as a cost-efficient and promising technology for hydrogen production, which not only avoids the formation of an explosive H 2 /O 2 gas mixture but also significantly reduces the energy input required for water electrolysis. In this work, a bifunctional CuNNi 3-x Mn x catalyst self-supported on nickel foam (NF) was synthesized via a facile hydrothermal method followed by annealing, resulting in highly efficient and stable electrocatalysts for both the urea oxidation reaction (UOR) and the hydrogen evolution reaction (HER). Controlled Mn doping allows precise modulation of the electronic structure of CuNNi 2.4 Mn 0.6 at the Ni active sites, simultaneously enhancing the adsorption/desorption kinetics of hydrogen intermediates (H∗) and facilitating C–N bond cleavage in urea. The optimized CuNNi 2.4 Mn 0.6 catalyst requires only 1.336 V for UOR and 44 mV for HER to achieve a current density of 10 mA cm −2 , demonstrating remarkable bifunctional activity. Moreover, when employed as both anode and cathode in a urea-assisted overall water splitting system, the catalyst enables a cell voltage of merely 1.526 V at 10 mA cm −2 , significantly lower than that required for conventional water electrolysis (1.695 V vs. RHE). The system also exhibits excellent durability, maintaining stable performance for over 30 h at 10 mA cm −2 without significant activity loss. This work provides a foundation for the further exploration of transition metal-based bifunctional electrocatalysts, paving the way for energy-efficient hydrogen production and simultaneous treatment of urea-rich wastewater.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 16
·118645
·
IF 6.3
Yuzhe Xie,Jie Zhang,Yuting Liu,Xing Luo,Zixiang Pei,Baohua Cao,Konrad Świerczek,Yang Zhang,Wanbing Guan
To mitigate interconnect corrosion in seawater-fed solid oxide electrolysis cells (SOECs), Mn 1.5 Co 1.5 O 4 spinel coatings were deposited on Fe-22Cr stainless steel. At 750 °C, the coated interconnects exhibited an area-specific resistance (ASR) of 31.8 mΩ cm 2 after 4835 h of oxidation in air, with a parabolic rate constant of 3.0 × 10 −5 mg 2 cm −4 h −1 . Following exposure to seawater vapor for 500 h, the ASR reached 3.36 mΩ cm 2 , with a predicted value of 9.80 mΩ cm 2 at 5000 h. These findings underscore the coating’s improved oxidation resistance under dual-atmosphere conditions. Furthermore, a three-cells stack demonstrated high stability with a low degradation rate of 1.04 × 10 −5 h −1 at 100 mA cm −2 for 100 h. Post-test analysis confirmed a crack-free structure with negligible additional resistance, indicating that the spinel coating satisfies the engineering requirements for durable, direct seawater electrolysis and provides a scalable pathway for green hydrogen production.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Biao He,Tengfei Hu,Yuelong Xiong,Shiguang Yan,Fei Cao,Yonghong Chen,Zhichao Hong,Genshui Wang
Lead-free dielectric films are ideal candidates for pulse power capacitors due to their rapid charge–discharge capability, but their energy storage performance still needs further improvement to meet the requirements of high-performance applications. In this work, 0.84BaTiO3-0.16Bi(Mg0.2Ni0.2Zn0.2Zr0.2Nb0.2)O3-xMn (0.84BT-0.16BMNZZN-xMn)/LaNiO3 (LNO) heteroepitaxial films were successfully fabricated on SrTiO3 (STO) (001) substrates via chemical solution deposition (CSD) technology, and the regulation effects of Mn doping on the films’ microstructure, electrical properties, and energy storage characteristics were systematically investigated. The results show that the introduction of Mn ions effectively refines the grain size, improves the leakage behavior of the films, and thus significantly enhances the breakdown strength. When the Mn doping content x = 0.01, the film exhibits optimal energy storage performance: the recoverable energy density (Wrec) reaches 72.3 J·cm–3, the efficiency (η) is 72.6%, and the breakdown strength (Eb) is as high as 5604 kV·cm–1. Meanwhile, the sample demonstrates excellent temperature stability over the wide temperature range of −120 to 120 °C (Wrec = 48.1 J·cm–3 with a fluctuation of less than 2%, @3500 kV·cm–1), and the Wrec changes by less than 2% after 109 cycles, indicating outstanding long-cycle reliability. These results confirm that the 0.84BT-0.16BMNZZN-0.01Mn epitaxial film has broad application prospects in high-power energy storage fields and is a promising candidate material.
✓ 已验证
DOI
PubMed
高影响因子
OPTICAL MATERIALS
·
2026
·
IF 4.3
Yijun Chen,Shichao Zhou,Ou Xu,Tao Huang,Wenchao Lin,Bin He,Xiaodong Shen,Guolun Zhang,Bingsuo Zou
Organic-inorganic metal halides (OIMHs) have garnered significant attention due to their rich optical properties and potential applications in light-emitting diodes, display devices, solar cells, and photodetectors. In this work, isopropyltriphenylphosphonium bromide and 1-methyl-1-propylpiperidinium bromide were employed as organic ligands and introduced into the [MnBr 4 ] 2- tetrahedral structure, synthesizing two manganese-based organic-inorganic metal halide single crystals: (C 21 H 22 P) 2 MnBr 4 and (C 9 H 20 N) 2 MnBr 4 , via the anti-solvent vapor diffusion method. Their nearest-neighbor Mn 2+ distances are 11.23 Å and 9.69 Å, which effectively modulates electron-phonon coupling and magnetic interactions, giving distinct green emissions centered at 509 nm and 534 nm under 284 nm and 362 nm excitation, with high photoluminescence quantum yields (93% and 86%) and long luminescence lifetimes (295 μs and 390 μs), respectively. The emission of (C 21 H 22 P) 2 MnBr 4 is dominated by self-trapped excitons (STEs) assisted by magnetic polaron effects, while (C 9 H 20 N) 2 MnBr 4 exhibits pure Mn 2+ d–d transition emission. Furthermore, based on the (C 21 H 22 P) 2 MnBr 4 single crystal, the corresponding amorphous material was prepared via a melting–rapid solidification method, which exhibits an emission peak redshift at 10 nm and a photoluminescence quantum yield of 50%. Through temperature-dependent photoluminescence spectroscopy and X-ray diffraction spectroscopy, the optical and structural properties of the three OIMH materials at low temperatures were systematically characterized, revealing the regulatory effects of magnetic polaron effect and different organic ligand confinement effects on the Mn luminescence, as well as the varied lattice symmetry tuning role of the same organic ligand order on the luminescence behavior.
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.6
Jinwei Li,Yuling Jin,Zhihuang Xu,Liwang Ye,Diwai Wu,Kailun Yan,Xinxin Zhuang
Organic-inorganic metal halides (OIMHs) have garnered increasing attention due to their unique structure and outstanding optoelectronic properties. Achieving emissive OIMHs through Metal ion doping has emerged as a viable strategy. We report a new zero-dimensional (0D) OIMHs, 30%Mn2+:(HEP)CdBr4 (HEP-Mn:Cd, HEP:1-(2-Hydroxyethyl)piperazine), which exhibits green emission with a photoluminescence quantum yield (PLQY) of 62.01%, outperforming previously reported Cd-based OIMHs. The exceptional efficiency arises from the high probability of radiative recombination and minimal nonradiative losses. Also, HEP-Mn:Cd exhibits excellent thermal and air stability, making it a promising candidate for applications in the field of lighting materials.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.5
Xiaofu Li,Tingfeng Xue,Junliang Ma,Zhibo Liu,Zejia Song,Bingyan Zhu,Liwei Pan,Jing Zhang
A bimetallic Mn-Co@γ-Al 2 O 3 catalyst was prepared • The catalyst effectively activates PMS for the mineralization of CIP • The catalyst enhances PMS activation via electronic, structural and active-site synergy • 1 O 2 is synergistically generated by LAS, oxygen vacancies and bimetallic redox cycles Ciprofloxacin (CIP) is recalcitrant to complete degradation by conventional treatment methods, and persulfate-based advanced oxidation processes often suffer low activation efficiency. In this study, a bimetallic Mn-Co@γ-Al 2 O 3 catalyst was developed to activate peroxymonosulfate (PMS) for the efficient mineralization of CIP. Under optimal conditions (1 mmol·L -1 PMS, pH=9), CIP was completely mineralized within 60 min. The catalytic activity of the bimetallic catalyst surpassed that of the single-metal Mn@γ-Al 2 O 3 and Co@γ-Al 2 O 3 , with a synergistic factor ( SF =1.12, >1) confirming a strong Mn-Co synergy. This synergistic effect results from coupled redox cycles, the inhibition of manganese oxide aggregation, and the presence of abundant Lewis acid sites and oxygen vacancies. The PMS system, primarily governed by singlet oxygen ( 1 O 2 ), effectively reduced the biotoxicity of CIP wastewater, increasing the germination rate of fescue seeds from 80% to 92%. A total of 14 degradation intermediates were identified. The excellent mineralization performance is closely associated with the unique CIP degradation pathway driven by 1 O 2 .
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Sadegh Ghorbanzadeh,Wei Zhang
Mn-based antiperovskite nanoparticles hold promise for magnetic applications, but synthesis has been confined to high-temperature solid-state methods impeding nanoscale control. Here, a NaCl/KCl molten salt flux produces highly crystalline Mn 3 ZnC, Mn 3 AlC, and Mn 3 Zn(C,N) nanoparticles (10–30 nm) at 900 °C within 6 h. XRD and HRTEM confirm the cubic Pm̅3m symmetry and systematic lattice contraction upon nitrogen substitution. The compositions span a broad magnetic spectrum, Mn 3 ZnC is superparamagnetic (M s = 27.87 emu/g, H c = 1.4 Oe, T C = 120 °C), Mn 3 Zn(C,N) is soft ferromagnetic (21.88 emu/g, 69.3 Oe, T C = 142 °C), and Mn 3 AlC exhibits harder magnetic behavior (12.95 emu/g, 333.7 Oe). Under alternating magnetic fields, Mn 3 Zn(C,N) achieves a specific absorption rate of 15.10 W/g, showing that intermediate coercivity, tuned by interstitial nitrogen, optimizes hysteresis-loss heating in earth-abundant antiperovskites.
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 7
·443
·
IF 4.8
Faxue Ma,Xiangju Wu,Zhen Ma,Jingjing Lu,Xueqing Zhu,Yuguang Lv
Owing to the high stability and low cost of nanozymes, they have been extensively investigated and reported. In this work, highly active CeO2nanoflowers were first prepared and then different metal elements were doped into the CeO2nanoflower matrix via a novel synthesis method to fabricate M-CeO2(M = Cu, Fe, Co, Mn, La) nanomaterials. Mn-CeO2with the highest peroxidase-like activity was selected via systematic screening, the as-prepared Mn-CeO2nanocomposites exhibited enhanced enzyme-like activity due to the strong metal-support interaction. This article explored the effects of doping ratio, pH, temperature, reaction time, and material concentration on its activity. A simple sensitive and selective colorimetric method was established and successfully used to detect hydrogen peroxide and ascorbic acid sensitively. When the hydrogen peroxide (H2O2) concentration is within the 2.0–120.0 μM range, the UV-visible absorbance at 652 nm was associated linearly with the H2O2concentration, R2= 0.9959, LOD = 1.7 μM (S/N = 3). The absorbance of the reaction system showed a good linear relationship with the ascorbic acid (AA) concentration (1.0–40.0 μM, R2= 0.992), LOD = 0.98 μM (S/N = 3). This study provides an effective way to construct efficient nanozymes and their potential applications in sensing and detection.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2020
·
IF 3.28
Ronghua Ma,Xiaoyan Wei,Chunfeng Wang,Shaohui Mao,Bing Chen,Yonghong Shao,Yu Fu,Keyu Yan,Dengfeng Peng
Mechanoluminescenece (ML) is a dynamic luminescence phenomenon of materials under various mechanical stimulation. Impurity doped ZnS shows high ML repeatability without any needs for extra excitation sources, thus making it very promising in applications like stress sensing and battery-free new light source . Lots of progress has been made in the last decades, however, the reproducible ML (RML) mechanism is still unclear to explain some basic phenomena like how the electron is excited to conduction band when undergoing mechanical actions or how the excitation energy is transferred to the dopants so efficiently. Based on comparative study of photoluminescence (PL) and ML in Mn 2+ doped ZnS prepared via melt-salt method, the RML energy routes in sphalerite ZnS: Mn 2+ is proposed herein, and further, a general mechanism is supposed which could apply to other RML systems. The excitation of RML is possibly generated by electron transfer during bond rebuilding in plastic deformation while the highly efficient energy transfer is realized through hole and electron capture by the dopant. According to this mechanism, we provide some prospects for further optimization of RML performance as well as discovery of new RML materials.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
CATALYSIS COMMUNICATIONS
·
2019
·
IF 3.674
Haiyun Tong,Shuai Lin,Hanlu Zhang,Xin Wang,Yanan Huang,Bangchuan Zhao,Xuebin Zhu,Yuping Sun
The present work reports oxygen evolution reaction (OER) activity in metallic V 4 AlC 3 bulk powders prepared by solid-state reactions for the first time. An ultralow overpotential of 253 mV at the current density of 10 mA cm −2 and an excellent stability are observed, demonstrating that V 4 AlC 3 bulk powder can be used as an excellent new type of OER catalyst with low-cost for mass production.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Na Lei,Pianpian Ma,Bo Yu,Shuhong Li,Jianming Dai,Guohua Jiang
The perovskite-type SrMn 0.875 Nb 0.125 O 3 (SMN) and SrCo 0.875 Nb 0.125 O 3 (SCN) materials are prepared through the solid-state reaction method as novel oxygen-intercalated electrode materials for supercapacitor . The crystal structure, powder morphology, and electrochemical performance have been characterized in detail. SMN exhibits a six-layer hexagonal (6 H ) structure with space group P 6 3 / mmc , while SCN shows the tetragonal structure of space group P 4/ mmm . Under the three-electrode system with 1 M Na 2 SO 4 neutral electrolyte solution, the specific capacitance ( C s ) of SCN can reach 894 mF cm −2 at 1 mA cm −2 , which is 4.7 times the value of SMN at the same condition. For SCN, the superiority of electrochemical performance is attributed to its porous surface morphology , perovskite structure with shorter B O bond length and large B-O-B bond angle, and a higher oxygen vacancy content. When combined with activated carbon (AC) electrode, the SCN//AC asymmetric supercapacitor with a working voltage of 2.0 V presents a specific energy density of 82.33 μWh cm −2 , while maintaining prominent cycling stability with a capacity retention of 88.88% after 10,000 cycles.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）