CARBON
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2024
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IF 10.5
Gang Li,Ruiyang Tan,Bohong Gao,Yuting Zhou,Chengcheng Zhang,Ping Chen,Xinyi Wang
Prussian blue analog (PBA) derivatives are widely utilized as high-performance electromagnetic wave absorption (EMWA) materials. Despite their potential, the specific impact of different metal ions on the morphology and EMWA performance of 3d-4f PBAs has remained unclear. Herein, using a coprecipitation method and different transition metal ions , we synthesized DyM(CN) 6 (M = Fe, Co) PBAs of different morphologies: six-petal flower-like structure for DyFe(CN) 6 and an elliptical seed shape for DyCo(CN) 6 . Upon annealing, Dy 2 O 3 /Fe@CNT and Dy 2 O 3 /Co@CNT composites (CNT = carbon nanotube) maintaining their original shapes were prepared. The Dy 2 O 3 /Co@CNT composite, in particular, showed excellent EMWA properties with an RL min of −48.32 dB at 15.44 GHz and an EAB of 5.68 GHz at an ultrathin thickness of only 1.75 mm. This performance is attributed to optimized impedance matching and synergistic magnetic-dielectric effects, along with interfacial polarization from Dy 2 O 3 , Co, and CNT interfaces. The simulated radar cross-section (RCS) confirms the excellent EMW attenuation capability of Dy 2 O 3 /Co@CNT and shows immense potential for practical application. This work offers a new approach to developing high-performance EMWA materials of 3d-4f PBA derivatives.
研究领域:
材料科学
·
电磁学
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产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2020
·
IF 16.683
Song Cheng,Chen Shen,Hao Zheng,Fuqiang Liu,Aimin Li
Preparing heterogeneous electro-Fenton (HEF) catalysts without sacrificing activity towards the two-electron (2e − ) oxygen reduction reaction (ORR) is a challenge, since Fenton-like active sites consist mainly of transition metals that prefer the 4e − ORR pathway. In this study, oxidized carbon nanotubes (OCNTs), which are promising ORR catalysts for the 2e − ORR, were uniformly attached to the surface of Prussian blue analogue (PBA) microcubes, forming a unique chainmail-like catalyst (OCNTs/PBA). 50 mg/L of sulfamethazine (SMZ) was completely removed within 30 min over OCNTs/PBA HEF process, with the first-order kinetic constant increased by 287.2 % compared with that PBA alone. To reveal the mechanism behind the enhanced catalytic activity, several possible interactions between the OCNTs and PBA were proposed and investigated further. This study not only offers a facile method to prepare a chainmail-like HEF catalyst, but also provides valuable insights into the rational design of HEF electrocatalysts with dual Fenton-like and ORR activity.
研究领域:
环境科学
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材料科学
·
电化学
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产品关联
DOI
高影响因子
Nanoscale
·
2025
·
IF 5.1
Ke Zhang,Jinzhao Huang,Zehui Liu,Feng Jiao,Guixin Zhao,Yu Zhang,Xiaolong Deng
The development of high-performance, stable, and cost-effective catalysts is crucial for advancing the oxygen evolution reaction (OER) in alkaline environments. In this study, we report the successful introduction of high-entropy technology into metal-organic frameworks using a facile and tunable one-step room-temperature co-precipitation method to enhance the OER performance. The X-ray photoelectron spectroscopy (XPS) and elemental mapping data indicated the successful incorporation of the metal elements into the metal-organic frameworks. Additionally, the synthesized high-entropy porous coordination polymers (PBAs) exhibited cubic-like crystal structure. The NiFeLaMoCo-PBA showed exceptional electrocatalytic water splitting performance in an alkaline environment, with an overpotential of only 244 mV at a current density of 10 mA cm-2 and a Tafel slope of merely 32 mV dec-1. The stability of 48 h was achieved in 1 M KOH solution with a current density of 50 mA cm-2. The enhanced OER activity and stability of the NiFeLaMoCo-PBA catalyst compared to NiCo-PBA systems primarily stems from the strategic incorporation of Fe, La, and Mo elements into the high-entropy Prussian blue analog architecture. This multielement integration not only optimizes electron transport kinetics but also establishes a robust multimetallic synergistic framework. The resultant electronic structure modulation facilitates charge transfer processes while the coordinated interactions among the five metallic components synergistically lower the activation energy barrier, thereby enhancing the OER performance of the catalyst in alkaline media. The current study demonstrates that NiFeLaMoCo-PBA is a promising candidate for an efficient and cost-effective OER electrocatalyst.
研究领域:
电化学
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材料科学
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催化
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纳米技术
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能量转换
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产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Zhichao He,Huitong Luo,Zetao Wang,Dafu Chen,Qi Feng,Xiaodong Cao
Oxidative stress and inflammation are common pathological mechanisms for the progression of tissue degeneration. Epigallocatechin-3-gallate (EGCG) features antioxidant and anti-inflammatory properties, which is a promising drug for the treatment of tissue degeneration. Herein, we utilize the phenylborate ester reaction of EGCG and phenylboronic acid (PBA) to fabricate an injectable and tissue adhesive EGCG-laden hydrogel depot (EGCG HYPOT), which can achieve anti-inflammatory and antioxidative effects via smart delivery of EGCG. Specifically, the phenylborate ester bonds, formed by EGCG and PBA-modified methacrylated hyaluronic acid (HAMA-PBA), endow EGCG HYPOT injectability, shape adaptation and efficient load of EGCG. After photo-crosslinking, EGCG HYPOT exhibits good mechanical properties, tissue adhesion and sustained acid-responsive release of EGCG. EGCG HYPOT can scavenge oxygen and nitrogen free radicals . Meanwhile, EGCG HYPOT can scavenge intracellular reactive oxygen species (ROS) and suppress the expression of pro-inflammatory factors. EGCG HYPOT may provide a new idea for alleviation of inflammatory disturbance.
研究领域:
材料科学
·
生物材料
·
药剂学
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Zhiqing Jia,Xinju Gong,Di Lan,Huanhuan Sun,Yu Liu,Yuping Gao,Siyao Guo
Prussian blue analogues (PBAs) offer tunable coordination frameworks and intrinsic porosity, yet their limited structural robustness and attenuation capability restrict the performance of PBA-derived electromagnetic wave (EMW) absorbers. These drawbacks can be substantially mitigated in metal-carbon heterostructure systems, yet achieving well-defined multi-component heterogeneous interfaces and controllable magnetic-domain behavior remains challenging. Here, we propose an electrostatic-field self-assisted strategy to construct bimetallic PBA-derived multi-type carbon-encapsulated/MXene (NiCo@C@C/MXene) heterostructures with precisely engineered multi-component interfaces, which create a rich landscape of electrostatically induced dual-coupled interfaces acting as a core mechanism for enhancing dielectric loss. MXene nanosheets and PDA coating reinforce the PBA-derived carbon matrix and form multidimensional conductive pathways, while multi-type carbon matrix, defect porosity, and magnetic nanoparticles collectively enhance interfacial polarization and magnetic loss. The resulting synergy yields optimized impedance matching, strong attenuation, and broadband absorption, enabling the material to achieve a minimum reflection loss (RL) of −58.51 dB and an effective absorption bandwidth (EAB) of 5.44 GHz at an ultrathin thickness of only 1.57 mm. Radar cross-section simulations further reveal domain-coupling networks that intensify EMW dissipation. This work establishes a concise route to address intrinsic PBA limitations and interface-engineering challenges, enabling next-generation high-performance EMW attenuation materials. Using an electrostatic-field self-assisted strategy, bimetallic PBA-derived multi-type carbon-encapsulated/MXene heterostructures were successfully constructed. The electrostatically induced dual-coupled interfaces enabled precise microscopic regulation of interfacial polarization and magnetic domain behavior. At the nanoscale, the synergistic optimization of dielectric loss, magnetic loss, and impedance matching was achieved, offering a concise approach to overcoming the intrinsic limitations of PBAs and providing a theoretical basis for the rational design of next-generation high-performance electromagnetic wave attenuation materials. Download: Download high-res image (325KB) Download: Download full-size image
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yonglei Xing,Xiaohua Mai,Wenbo Lv,Fang Wan,Xiaoyong Jin,Gang Ni
Hollow carbon-coated CoSe 2 cubes (CCS2) were derived from a CoFe-PBA template. • Tuning Se-vacancy density reshapes Co electronic state for PMS activation. • CCS2 removed 95% SMX in 10 min with an apparent rate constant of 1.39 min −1 . • 1 O 2 and SO 4 •− dominate, while ·OH, O 2 •− and Co(IV)=O play auxiliary roles. • CCS2/PMS retained high activity over pH 3–11 and in real water matrices. The growing variety and chemical intricacy of refractory organic species in aqueous environments has elevated the design of robust, sustainable, and eco-compatible peroxymonosulfate (PMS) activation platforms into a key research thrust within advanced oxidation. Targeting the recurring drawbacks of common heterogeneous catalysts (insufficient active-site exploitation, considerable metal dissolution, and weak cyclic stability), we built a carbon-shelled cobalt selenide system (CCS) starting from CoFe-PBA, by sequentially performing hydrothermal selenization, polydopamine wrapping, and inert-atmosphere annealing. Modulating the selenium vacancy (V Se ) population proved to substantially reinforce PMS activation. Among the synthesized series, CCS2 emerged as the top performer, eliminating 95% of 20 mg L −1 sulfamethoxazole (SMX) over 10 min. Multi-technique characterization coupled with mechanistic probing revealed that incorporating V Se rearranged the electron distribution around Co atoms, raised the proportion of Co 2+ , and tightened the anchoring of oxygen-containing surface species. Concurrently, under-coordinated Se centers played a role in maintaining the Co 3+ /Co 2+ redox cycle, which together drove PMS through several parallel activation channels. Spin-trapping EPR measurements, quenching experiments, and selective probe assays jointly confirmed coexistence of SO 4 •− , •OH, 1 O 2 , and high-valent Co-O species in the CCS2/PMS system, with 1 O 2 and SO 4 •− as the principal contributors driving SMX abatement. These results elucidate the way anion vacancies tailor the electronic landscape and synergistic catalytic pathways of transition-metal selenides under PMS activation, providing a new conceptual route for designing durable sulfate-radical-based AOP catalysts via defect engineering. Download: Download high-res image (262KB) Download: Download full-size image
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xiaojing Lin,Shoufu Cao,Hongyu Chen,Xiaodong Chen,Zhaojie Wang,Sainan Zhou,Hui Xu,Siyuan Liu,Shuxian Wei,Xiaoqing Lu
Rational interfacial structure with excellent charge transfer and exposure of numerous active sites plays vital roles in heterogeneous catalysis. Herein, a hierarchical spongy electrocatalyst with active NiFe Prussian blue analogues and nickel carbides interface (NiFe-PBA/Ni 3 C(B)) is proposed and fabricated by a borate-assisted strategy. The unique structure and matchable interface benefit from the desorption of borate ligands in-situ during the pyrolysis and carbonization process. The optimal electrocatalyst composing of metal–organic framework (NiFe prussian blue analogues) in conjunction with a metallic transition carbide phase (nickel carbide) exhibits an ultra-low overpotential of only 196 mV at 10 mA cm −2 and a small Tafel slope of 30.1 mV dec -1 for OER in KOH. The robust water oxidation performance can be ascribed to the abundant adsorption sites and effective interfacial interaction. In addition, computational simulations further confirm that NiFe-PBA/Ni 3 C(B) is favorable for OER since the optimized electronic distribution and metal-3d orbitals interact around Fermi level at the interface. This research provides a new insight into rationally designing efficient electrocatalysts via morphology engineering and integrating different functional phase with complementary advantages for catalysis application.
研究领域:
电化学
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材料科学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Tong Qi,Miao Jia,Qiong Yuan,Xu Zhang,Mengqiu Jia
Metal selenides have excellent theoretical capacity when used to store sodium . Compared with single metal selenides, bimetallic selenides stand out with excellent theoretical capacity, sufficient electrochemical reaction sites and good conductivity. In this work, Zn 3 [Fe(CN) 6 ] 2 prussian blue analogue nanospheres are prepared by a static method with PVP as dispersant, and then heterostructure ZnSe/FeSe nanospheres (ZnSe/FeSe NS) composite are prepared by gas-phase selenation. PVP is conducive to the formation of loose and porous structures and alleviate the volume expansion during sodium storage. In this structure, heterostructures can create abundant active sites and increase the electrochemical capacity. Therefore, the ZnSe/FeSe NS show high sodium storage capacity with a reversible capacity of 549.0 mAh g −1 at 100 mA g −1 and 436.8 mAh g −1 even after 100 cycles at 1 A g −1 . It also shows excellent rate performance with high stable capacities of 524.6, 486.1, 447.3, 431.1, 417.9 mAh g −1 in a series of current densities of 100, 200, 500, 1000, 2000 mA g −1 separately. The excellent capacity of the ZnSe/FeSe NS composite comes from the active sites provided by the heterostructure and the high conductivity provided by the built-in electric field.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2023
·
IF 5
Jianing Lv,Anying Wang,Yinwen Li,Shoufang Xu,Xingjian Li
Beyond self-repairability and reprocessability, permanent shape reconfigurability in thermadapt shape memory polymers (TSMPs) is a prominent functionality in dynamic covalent polymer networks. The design and synthesis of TSMPs with a wide range of tunable macroscopic properties that do not require sophisticated chemistry or modification are highly desirable for real-world device applications but are a significant challenge. Herein, we present a straightforward yet efficient strategy to prepare TSMPs with adjustable properties, good reconfigurability, and self-repairability via ester–ester exchange. The class of TSMPs is engineered as the architecture of AB copolymer networks (AB-CPNs), which are composed of the semicrystalline polycaprolactone (PCL) as the A-segment and the poly(butyl acrylate) (PBA) as the B-segment. Regulating the weight content of the PCL segment in the thermadapt shape memory PCL-co-PBA networks can govern the network rearrangement kinetics, thermal properties, thermomechanical properties, switching temperature, and shape memory properties. The thermadapt shape memory AB-CPNs with ester–ester exchange do not require the introduction of extra hydroxyl groups, and their network structure is readily adjusted, allowing for considerable flexibility in the structure design and property adjustment. It is anticipated that a large family of thermadapt shape memory AB-CPNs with widely tunable macroscopic properties and the commercial availability of precursors will contribute significantly to real-world applications of SMP devices.
研究领域:
材料科学
·
高分子化学
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产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2021
·
IF 9.811
Da Chen,Shiqiang Hao,Liubing Fan,Yangwu Guo,Jiyong Yao,Christopher Wolverton,Mercouri G. Kanatzidis,Jing Zhao,Quanlin Liu
Recent discoveries in organic−inorganic metal halides reveal superior semiconducting and polarization properties. Herein, we report three organic–inorganic metal halides, (PBA)4BiBr7·H2O, (PBA)4BiI7·H2O, and (PBA)4InBr7·H2O [(PBA)+ = C6H5(CH2)4NH3+], with band gaps of ∼3.52, ∼2.29, and ∼4.05 eV, respectively. They possess zero-dimensional structures containing the inorganic octahedra [MX6]3– (M = Bi, In, X = Br, I) and unbound X– ions and crystallize in the C2 space group. (PBA)4BiI7·H2O shows a second-harmonic-generation (SHG) response in the infrared region, approximately 1.3 times that of AgGaS2; (PBA)4BiBr7·H2O and (PBA)4InBr7·H2O show SHG responses in the ultraviolet region, approximately 0.4 and 0.6 times that of KH2PO4, respectively. The large SHG responses are attributed to the synergistic contribution of the octahedral distortion of [MX6]3– (M = Bi, In, X = Br, I) and the ordered arrangement of the benzene ring-containing organic cation PBA+. Upon ultraviolet and visible-light excitations at room temperature, (PBA)4BiBr7·H2O, (PBA)4BiI7·H2O, and (PBA)4InBr7·H2O exhibit broad red-light luminescence with large Stokes shifts of 290, 237, and 360 nm, respectively, due to self-trapped exciton emission. All of these properties demonstrate that this series of metal halides are potential multifunctional optoelectronic materials.
研究领域:
材料科学
·
光学
·
半导体物理
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 10
·669
·
IF 5.4
Yang Zitong,Deng Jingyu,Zhang Yili,Qi Wenkai,Zhang Yuxia
A self-signaling electrochemical sensor based on molecular imprinting technology for the detection of Bisphenol A (BPA) in food samples. The sensor was constructed through sequential modification of the electrode with reduced graphene oxide (RGO) and CoNiFe Prussian blue analogue (CoNiFe-PBA), followed by electropolymerization of an MIP film using BPA as template and o-phenylenediamine as monomer. CoNiFe-PBA provides an intrinsic signal at ~ 0.47 V without external probes, originating from synergistic redox interactions among Co, Ni, and Fe. BPA rebinding reduces the signal via steric hindrance, enabling sensitive detection in food samples. Under optimal conditions, the sensor demonstrated a wide linear detection range (0.5–500 nM) and a low detection limit (0.19 nM). Owing to its high selectivity, sensitivity, and accuracy, the sensor offers a reliable approach for precise quantification of trace BPA in complex food matrices. Graphical abstract
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DOI
高影响因子
FUEL
·
2026
·
IF 7.8
Zhiwei Lu,Ke Chen,Rao Fu,Xiangyi Long,Peixin Jiang,Jinrui Wu,Yue Zhang,Yidian Yuan,Qiule Lu,Zhaodan Fu,Minglei Yan,Lan Zhang
This work successfully synthesized and empirically evaluated the F-doped Prussian blue analogues (PBA) deposition of FePO 4 (FPO) on the nickel foam (NF). The PBA/NF cubic structure was hydrothermally grown on the Ni-MOF/NF precursor and encapsulated by electrodeposited FePO 4 spheres, leading to the final F-PBA@FPO/NF. The catalyst serves as a high-performance bifunctional electrocatalyst, delivering low overpotentials of 220 mV for the OER and 174 mV for the HER at 10mA cm −2 , coupled with favorable Tafel slopes of 144 and 130.9 mV dec −1 , respectively. The catalyst was doped with a large number of F atoms, which formed abundant hydrogen bonds with water, thereby promoting the generation of HER. The substantial formation of Ni-F bonds during the testing stage created a modified local coordination environment, thereby establishing a foundation for the continuous in-situ formation of active NiOOH phases under operating conditions. Interestingly, F doping plays a dual role: it tailors the electronic structure of metal centers and induces in-situ etching of the material, thereby generating structural openings during the electrochemical process. This work advances the fundamental understanding and rational design of F-doped catalysts and bifunctional electrocatalysts for hydrogen production.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）