Materials Reports: Energy
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2024
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IF 0
Han Wang,Sidra Jamil,Muhammad Fasehullah,Shujuan Bao,Yi Li,Maowen Xu
Lithium-sulfur (Li-S) batteries are one of the most promising energy storage and conversion devices due to the high theoretical capacity and cost-effectiveness of sulfur. However, they still suffer from sluggish redox kinetics and the shuttle effect caused by complex polysulfides. In this work, graphitic carbon nitride (g-C 3 N 4 ) is utilized as a template and further hydrothermally treated with an Mn source and glucose. The pyrolysis of g-C 3 N 4 gives rise to N-doped carbon nanotubes, producing abundant sites for physical confinement and chemical adsorption of polysulfides, while glucose carbonization brings forth amorphous carbon and Mn source produces metal spheres. Afterward, polydopamine (PDA) induces N-doped carbon coating and promotes interface connection as well as electron immigration. This synergistic design possesses a high surface area of micropores and mesopores to aggregate sulfur and accelerate redox kinetics. As a result, the N-doped carbon nanotube with Mn spheres and PDA coating@sulfur (CN/Mn-PDA@S) exhibits a high reversible capacity of 813.5 mAh g −1 at 1 C with a decay rate of 0.064% per cycle and remarkable capacity retention at 2 C with rate performance up to 4 C. Therefore, the novel design of N-doped carbon nanotubes with Mn spheres and PDA coating serves as an efficient polysulfide immobilizer for Li-S batteries.
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Journal of Materials Chemistry C
·
2025
·
IF 5.1
Andrei S. Toikka,Ramazan Kenesbay,Maria Baeva,Dmitry M. Mitin,Maria Sandzhieva,Aleksandr Goltaev,Vladimir Fedorov,Alexander Pavlov,Dmitry Gets,Ivan Mukhin,Sergei Makarov
As alternatives to conventional perovskite light-emitting diodes, perovskite light-emitting electrochemical cells (PeLECs) are in great demand in modern science and technology due to their simplified structure and attainable higher luminance. Here, for the first time, we present the implementation and characterization of red CsPbIBr2-based PeLECs/LEDs. To improve perovskite material phase stability, we applied the following strategies for mitigating the mixed anion lead halide perovskite phase segregation: Pb2+ partial substitution by Mn2+, boundary passivation by poly(ethylene oxide) with polyvinylidene fluoride, and two-step thermal treatment with vacuuming and annealing. The complex measurements of photoluminescence, optical density, energy-dispersive X-ray spectroscopy, and X-ray diffraction confirm the minor phase segregation in the optimized perovskite layers. The performed ab-initio calculations predicted the band gaps of perovskite materials with a mixed anion composition, corresponding well to the results of optical measurements. Finally, current and electroluminescence time tracking proved the formation of a dynamic p–i–n structure in the studied PeLEC devices. The developed PeLECs/LEDs exhibited relatively high, for red PeLECs, electroluminescence up to 96 cd m−2 with a peak position at 667–672 nm.
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高影响因子
DALTON TRANSACTIONS
·
2018
·Vol. 47
·期 29
·9634-9642
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IF 4.099
Shuqi Lu,Shanglong Peng,Zhiya Zhang,Yunlong Deng,Tianfeng Qin,Juanjuan Huang,Fei Ma,Juan Hou,Guozhong Cao
Surface passivation in quantum dot-sensitized solar cells (QDSSCs) plays a very important role in preventing surface charge recombination and thus enhancing the power conversion efficiency (PCE). ZnSe passivation with dopant in CdS/CdSe co-sensitized QDSSCs has been demonstrated as an effective way to improve the PCE. In the present study, a series of characterizations revealed that a Mn-doped ZnSe passivation layer can not only reduce surface charge recombination, but also enhance light harvesting. By means of density functional theory calculation along with a systematic study of electronic band structure, it has been found that the valence band of ZnSe moves upward on Mn-ion doping which leads to acceleration of charge separation and broader light absorption range. The impact of the Mn ion on charge recombination and light harvesting has been interpreted reasonably and the PCE of CdS/CdSe co-sensitized QDSSCs with Mn-doped ZnSe passivation layer is as high as 6.46%, which is 1.5 times that of the solar cell without the passivation layer.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Wei Sun,Mushan Xie,Bo Shi,Zhixuan Zhu,Jian Zhang,Ying Wang,Jing Bian,Haibo Wang,Chun Zhao
The selective and simultaneous removal of antibiotics (ABs), antibiotic-resistant bacteria (ARBs), and antibiotic resistance genes (ARGs) from complex water matrices is crucial but remains challenging. Herein, relatively pure nonradical oxidation systems of singlet oxygen ( 1 O 2 ) and reactive trivalent manganese (Mn( III ) aq ) were established through electrofiltration-activated peroxymonosulfate and permanganate processes, respectively. Both systems simultaneously removed ABs, ARBs, and > 99 % of 20 selected ARGs within 15 min, while the addition of anions and nature organic matter slightly inhibited ARB inactivation. A multiperspective investigation confirmed that 1 O 2 demonstrated superior efficacy in ARB inactivation and protein damage compared to Mn( III ) aq , whereas Mn( III ) aq destroyed the ARB cell membrane, induced oxidative stress, and damaged almost all ARGs more rapidly than 1 O 2 . In particular, 1 O 2 exhibited selectivity toward four ARGs, which was attributed to a positive dependence on the 5′-GG-3′ doublet content. Moreover, 1 O 2 and Mn( III ) aq significantly reduced the risks of ARB regrowth and horizontal gene transfer of ARGs while providing resilience in real water matrices with improved energy-effectiveness. The findings of this study offer new insights into nonradical reactive species dominated advanced oxidation processes for controlling antibiotic resistance in real water.
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高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
·
IF 8.5
Ke Wang,Yuqing Huang,Shiyong Sun,Haoming Tang,Lin Gong,Dongdong Wang,Xueyan Zhang,Sen Lin
The detoxification and valorization of toxic p-nitrophenol (p-NP) and its ester derivatives into high-value p-aminophenol (p-AP) present a significant challenge in green chemistry. This work addresses this challenge by developing a hybrid catalyst through the co-immobilization of lipase and a novel bimetallic Cu/Mn aminoclay nanozyme (CMAC) onto montmorillonite (Mt). The key innovation lies in the multifunctional design of CMAC, which serves not only as a highly active laccase-mimicking nanozyme but also as an intrinsic immobilization matrix for lipase, while the Mt support simultaneously prevents nanozyme aggregation and enhances structural stability. This integrated lipase-CMAC@Mt. platform enables efficient substrate channeling, whereby the p-NP intermediate generated from lipase-catalyzed hydrolysis of p-NPP is directly reduced by adjacent CMAC to p-AP, minimizing intermediate accumulation and overcoming diffusion limitations. As a result, the hybrid catalyst achieves efficient one-pot conversion of p-NPP to p-AP, without requiring harsh reagents or intermediate separation. Remarkably, it exhibits exceptional reusability (76.8 % activity retention after 10 cycles) and storage stability (82.4 % activity retained over 30 days), substantially outperforming conventional free enzyme systems. This study demonstrates a strategic bio-nano synergy that combines the specificity of enzymes with the robustness of nanozymes, offering a scalable and economically viable platform for simultaneous toxic waste elimination and resource recovery.
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高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2014
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IF 2.291
Li-Na Wen,Meng-Xia Xie
s G-quadruplex DNA is an effective target for anticancer drug, and investigation of the G-quadruplex DNA with natural compounds plays a key role in the development of anticancer drugs. In this article, room temperature phosphorescence sensing system based on l -cysteine-capped Mn-doped ZnS QDs has been established. Sanguinarine can adsorb on the surface of Mn-doped QDs and quenched the phosphorescence emission of the sensor. When the G-quadruplex sequences combined with the sanguinarine of the QDs-sanguinarine system, the phosphorescence intensities of the QDs sensors would be restored, and the binding abilities of the G-quadruplex DNA with the sanguinarine can be evaluated by the phosphorescence recoveries of the sensor system. Based on the developed approach, the interaction of sanguinarine and six G-quadruplex DNA with various sequences (tel24-1, tel24-2, tel22, k-ras, HIF-1α and c-kit1) has been investigated. The results showed that the binding abilities of the G-quadruplex DNA with sanguinarine were related to their number of bases and conformations. The conformational changes of the six G-quadruplex DNA, after binding with sanguinarine, have also been probed by circular dichroism. Combining the changes of the phosphorescence lifetime, the binding mechanism of the G-quadruplex DNA and sanguinarine has been discussed. The developed method was simple, rapid and specific, and can avoid fluorescence interferences of the system, and it would be prospective to evaluate the interaction of the drug with different G-quadruplexes.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
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IF 7.3
Zhigang Zhang,Yuntao Hu,Xiangyu Sun,Guan Wang,Huaiqing Zhao
Catalytic oxidation plays a pivotal role in the chemical industry. Among various approaches, the strategy involving O2 as a green oxidant and H2O as a solvent for the efficient oxidation of organic compounds has garnered significant interest because it aligns with the principles of sustainable development. However, the inherent inertness of ground-state oxygen molecules poses a significant challenge in the development of non-noble-metal catalysts that can activate O2 to reactive oxygen species. Inspired by the regulatory effects of metal doping on the oxygen vacancy content and electronic properties of materials, we developed a bimetallic oxide catalyst MnxCoOy, derived from Mn-doped ZIF-67, for catalytic oxidation with oxygen. Comprehensive characterization (XRD, XPS, N2 adsorption–desorption, Raman, and FTIR) reveals that Mn species doping substitutes Co2+ at tetrahedral CoO4 sites, modulating the catalyst’s oxygen vacancy concentration and electronic distribution. The optimized MnxCoOy with suitable oxygen vacancy concentration exhibits superior performance in the selective oxidation of organic molecules containing benzyl sp3 C–H bonds. The cyclic and amplification experiments indicate the potential application value of the catalyst. This work provides fundamental insights into the design of multipurpose catalysts for catalytic oxidation through the metal doping strategy, which also offers a sustainable approach for obtaining carbonyl compounds.
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高影响因子
PROGRESS IN SOLID STATE CHEMISTRY
·
2025
·
IF 10.5
Zhiwei Wang,Yinan Shen,Liangsheng Tian,Suwit Suthirakun,Wongsathorn Kaewraung,Qi Menghang,Hang Zhao,Xin Xin,Ruoxiu Xiao,Peng Jiang,Qu Li,Tingting Lu
The coating optimized with high near-infrared reflectance pigments can effectively reduce the energy consumption for heating and cooling in buildings, thereby alleviating the pressure on global energy consumption. Using a high-temperature solid-state method, blue-violet pigments with high near-infrared reflectance, Ca 2 Zn 1- x M x Si 2 O 7 (M = Mn, 0 ≤ x ≤ 0.4 and Ni, 0 ≤ x ≤ 0.2) solid solutions, were synthesized for the first time, with a maximum solar reflectance of 82.67%. Using XPS analysis, it was determined that the oxidation state of Ni in the pigment is +2, while Mn exists in mixed oxidation states of +2 and +3. UV-VIS-NIR spectroscopy analysis indicates that the blue-violet color of the pigment originates from the d-d transitions of the transition metal ions. As the doping concentration increases, the near-infrared reflectance of the pigment decreases. The DFT calculations have also confirmed that the color of pigments originates from transition metal ions. The as-synthesized pigments were incorporated into acrylic to create colored coatings. Improving the near-infrared solar reflectance of the acrylic coating. The excellent high near-infrared solar reflectance and coating property optimization make the synthesized pigment a potential energy-saving coating.
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高影响因子
Advanced Healthcare Materials
·
2025
·
IF 9.6
Jie Zhao,Ming Li,Qiong Wu,Guanzhong Qiao,Hao Jiang,Sheng Zhao,Linhan Zhang,Song Wang,Huijie Jiang
Colorectal cancer (CRC) poses a significant therapeutic challenge due to its immunosuppressive tumor microenvironmentl (TME). In this environment, triggering receptors expressed on myeloid cells 2 (TREM2+) tumor-associated macrophages (TAMs) drive immune evasion and therapy resistance. In this study, CSF1R-IN-3@Mn@MPDA-antiTREM2 (CMMT) is presented, a manganese-doped mesoporous polydopamine nanoplatform conjugated with anti-TREM2 antibodies, which integrates TAM reprogramming and magnetic resonance imaging (MRI)-guided immune monitoring. CMMT has three key characteristics: 1) pH-responsive release of the Colony Stimulating Factor 1 Receptor (CSF1R) inhibitor CSF1R-IN-3 within acidic TME; 2) selective targeting of TREM2+ M2 macrophages, achieving 4.2-fold higher uptake compared to M1 subsets ( P < 0.001); and 3) dual modulation of TREM2 and CSF1R pathways, polarizing M2-TAMs toward pro-inflammatory M1 phenotypes. In orthotopic CRC models, CMMT synergizes with anti-PD-L1 therapy, reducing tumor volume by 72.5% compared to 42.1% for monotherapy ( P < 0.001). It also extends median survival from 28 to 52 days. Importantly, CMMT acts as an MRI contrast agent, with T1 signal intensity correlating with intratumoral TREM2+ macrophage density (r- 0.71, P < 0.05), enabling non-invasive assessment of TME remodeling. This theranostic platform bridges immune modulation and real-time monitoring, providing a promising strategy to overcome immunotherapy resistance in CRC.
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PubMed
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Zichen Zhang,Jingyi Liu,Nan Chen,Tao Jiang,Shiyu Yao,Gang Chen,Deping Wang,Fei Du
Li-rich Mn-based oxides (LRMO) are of great significance in achieving high energy density all-solid-state lithium batteries (ASSLBs), owing to their high theoretical capacity and high operation voltage. Unfortunately, their practical application is hindered by severe interface degradation due to the chemical oxidation and electrochemical decomposition of solid electrolytes (SEs), driven by high-active oxygen and electron sources from LRMO. Herein, an interfacial modification strategy is proposed to stabilize the surface lattice oxygen of LRMO and reduce electronic conduction between LRMO and SEs, synergistically. Accordingly, the byproducts from chemical oxidation (InO − ) and electrochemical decomposition (LiCl − ) are largely suppressed, leading to superior interfacial transport with the lowest resistance. Consequently, the ASSLB achieves a high reversible capacity of 227.9 mA h g −1 at 0.1 C, a cycling stability of 90.1% capacity retention after 200 cycles at 0.1 C, and a superior rate capability with a capacity of 81.7 mA h g −1 at 3.0 C. This study enriches the fundamental understanding of LRMO/SEs interfacial evolution during the electrochemical cycling and the proposed interfacial modification strategy benefits the future design of Li-rich compounds for ASSLBs.
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高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Dandan Han,Jialin Geng,Jingze Luan,Weiwei Jian,Lin Wu
Manganese-based oxides are promising cathodes for aqueous zinc-ion batteries but often suffer from structural instability, manganese dissolution, and poor conductivity. Herein, we propose a "dual-network synergistic construction" strategy through the in-situ derivation of a metal–organic framework to concurrently address these challenges. This strategy ingeniously constructs an oxygen-deficient network and a conductive carbon network within a hierarchical Mn₂O₃/C composite (O d -Mn₂O₃/C-400). The formed interfacial Mn–O–C bonds effectively enhance structural integrity and regulate the concentration of oxygen vacancies. As a cathode for aqueous zinc-ion batteries, the O d -Mn₂O₃/C-400 composite demonstrates exceptional electrochemical performance, delivering a remarkable specific capacity of 425 mAh·g⁻¹ at 3 A·g⁻¹. More importantly, it exhibits outstanding long-term cyclability, retaining 87.67% of its capacity (174 mAh·g⁻¹) after 5,000 cycles at a high current density of 5 A·g⁻¹. When configured into a zinc-ion hybrid supercapacitor (O d -Mn₂O₃/C-400//AC), the device achieves a high energy density of 119 Wh·kg⁻¹ at 189 W·kg⁻¹, and maintains 78.6% capacity retention with 97.5% Coulombic efficiency over 3,000 cycles. This work provides an effective material design paradigm for developing high-performance manganese-based electrodes for advanced energy storage systems.
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高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zihao Su,Zhihao Guo,Haoyu Xie,Meizhen Qu,Gongchang Peng,Hao Wang
Li-rich Mn-based cathode materials (LLOs) are often faced with problems such as low initial Coulombic efficiency (ICE), limited rate performance, voltage decay, and structural instability. Addressing these problems with a single approach is challenging. To overcome these limitations, we developed an LLO with surface functionalization using a simple fabrication method. This two-step process involved a liquid-stage NaBF4 treatment followed by an in situ chemical reaction during sintering. This reaction led to the creation of oxygen vacancies (OV), spinel structures, and doping with Na at the Li site, B at the tetrahedral interstitial spaces of O in both the transition-metal (TM) layer and Li layers as well as the octahedral interstices in the TM layer, and F at the O site. We have carried out a thorough study and employed density functional theory calculations to reveal the hidden mechanisms. The treatment not only increases the electrical conductivity but also changes the oxygen charge environment and inhibits lattice oxygen activity. Surprisingly, the B–O bond is so strong that it prevents the migration of TM within the tetrahedral interstitial spaces of O in both the TM and Li layers, hence stabilizing its structure. This bonding interaction strengthens the transition of the TM 3d and O 2p states to lower energy levels, thus causing an increase in the redox potentials. Hence, a rise in the operating voltage occurs. Of special importance, this therapy dramatically increases the ICE to 90.29% and keeps a specified capacity of 203.3 mAh/g after 100 cycles at 1C, which is an excellent capacity retention of 89.94%. This study introduces ideas and methods to tackle the challenges associated with LLOs in batteries. It also provides compelling evidence for the development of high-energy-density Li-ion batteries.
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高影响因子
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