Nano-Micro Letters
·
2023
·Vol. 15
·期 1
·1-24
·
IF 26.6
Zhang Shuo,Liu Xuehua,Jia Chenyu,Sun Zhengshuo,Jiang Haowen,Jia Zirui,Wu Guanglei
The development of wearable multifunctional electromagnetic protective fabrics with multifunctional, low cost, and high efficiency remains a challenge. Here, inspired by the unique flower branch shape of “Thunberg’s meadowsweet” in nature, a nanofibrous composite membrane with hierarchical structure was constructed. Integrating sophisticated 0D@2D@1D hierarchical structures with multiple heterointerfaces can fully unleash the multifunctional application potential of composite membrane. The targeted induction method was used to precisely regulate the formation site and morphology of the metal–organic framework precursor, and intelligently integrate multiple heterostructures to enhance dielectric polarization, which improves the impedance matching and loss mechanisms of the electromagnetic wave absorbing materials. Due to the synergistic enhancement of electrospinning-derived carbon nanofiber “stems”, MOF-derived carbon nanosheet “petals” and transition metal selenide nano-particle “stamens”, the Co x Se y /NiSe@CNSs@CNFs (CNCC) composite membrane obtains a minimum reflection loss value (RL min ) of -68.40 dB at 2.6 mm and a maximum effective absorption bandwidth (EAB) of 8.88 GHz at a thin thickness of 2.0 mm with a filling amount of only 5 wt%. In addition, the multi-component and hierarchical heterostructure endow the fibrous membrane with excellent flexibility, water resistance, thermal management, and other multifunctional properties. This work provides unique perspectives for the precise design and rational application of multifunctional fabrics.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2023
·
IF 6.4
Zhifang Feng,Bona Zhang,Peijun Ji,Ruiyuan Hu,Bin Gao,Xiaofeng Wang,Yu-Lan Meng,Xue-Zhi Song,Zhenquan Tan
Bi2O3 is increasingly used in supercapacitors because of its high theoretical specific capacitance, but poor inherent conductivity and poor ion diffusion limit its actual capacitance. Therefore, the rational design of the surface and structure of Bi2O3 is the key to improve the specific capacitance of Bi2O3. Here, we report the fabrication of high-performance negative electrodes from Bi2O2CO3 nanosheets wrapped around Bi2O3 arrays (Cu foam@Bi2O3@Bi2O2CO3) by a combination of electrical substitution, oxidative calcination, and hydrothermal methods. The realized Cu foam@Bi2O3@Bi2O2CO3 presents a surface cross-linked laminar structure, which shortens the electrolyte penetration path. The direct replacement growth of Bi on copper substrates to obtain subsequent composites allows for enhanced adhesion between the electrode material and the collector, facilitates charge transfer to the electrode material, and achieves ultrahigh loadings (13.2 mg cm–2). In addition, the constructed asymmetric supercapacitor has a maximum energy density of 1.6 mW h cm–2 (45.5 W h kg–1) at a power density of 6.2 mW cm–2 (175.9 W kg–1). This work provides a simple design strategy to enhance the electrochemical performance of Bi2O3.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Fan Zhao,Yaning Zhang,Siqi Gong,Huiting Xu,Junjie Qi,Honghai Wang,Chunli Li,Wenchao Peng,Jiapeng Liu
Capacitive deionization (CDI) is perceived as a promising technology for freshwater production owing to its environmentally friendly nature and low energy consumption. To date, the development of high-performance electrode materials represents the foremost challenge for CDI technology. In this work, the porous bismuthene/MXene (P-Bi-ene/MXene) heterostructure was synthesized using a simple interfacial self-assembly method with two-dimensional (2D) bismuthene and Ti 3 C 2 T x MXene . Within the P-Bi-ene/MXene heterostructure, the porous structure can increase the active site and facilitate ion transport. Simultaneously, MXene effectively enhances the conductivity of the heterostructure, resulting in accelerating electron transport. Due to these attributes, the P-Bi-ene/MXene heterostructure demonstrates high desalination capacity (90.0 mg/g), fast desalination rate, and good cycling performance. The simple self-assembly strategy between 2D/2D materials described herein may offer inspirations for the synthesis of innovative electrode materials with high performance.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Huying Yan,Yang Guo,Xingzhi Bai,Jiawei Qi,Haipeng Lu
Optimizing and enhancing the performance of electromagnetic wave (EMW) absorption materials relies on the modification of their composition and structure through heterogeneous interface engineering. Ti 3 C 2 T x ’s high conductivity results in an impedance mismatch, which hinders efficient EMW absorption. Herein, a one–step catalytic chemical vapor deposition (CCVD) method is used to construct the Ti 3 C 2 T x /TiO 2 @C heterogeneous structure. Upon annealing at 500 °C, amorphous carbon is uniformly deposited on the Ti 3 C 2 T x surface, thereby incorporating the scale–like TiO 2 generated during the process. The inclusion of the amorphous carbon layer and TiO 2 reduces the substrate’s conductivity, achieving optimized impedance matching. Additionally, building heterogeneous interfaces between Ti 3 C 2 T x , TiO 2 , and C enriches multiple loss mechanisms involving dipole and interfacial polarization, ultimately enabling optimal EMW absorption performance. The minimum reflection loss ( RL min ) value of Ti 3 C 2 T x /TiO 2 @C–500 is –53.12 dB when its thickness and frequency are 1.15 mm and 13.80 GHz, respectively. Moreover, thermal infrared imaging confirms that coatings fabricated using Ti 3 C 2 T x /TiO 2 @C–500 demonstrate a favorable heat dissipation rate, validating its effectiveness in addressing the challenge of efficient heat dissipation in electronic devices. This study significantly contributes to the progress of two–dimensional (2D) materials, enabling high–performance EMW absorption and expanding their applications in complex scenarios.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Sustainable Energy & Fuels
·
2022
·Vol. 6
·期 21
·4938-4947
·
IF 6.813
Weiwen Chen,Ziyu Geng,Shicong Zhu,Zenghui Qiu,Xin Zhang,Haijun Xu
Exploration of new MXene-based materials with excellent electrical conductivity and a high redox-active surface as high electrochemical performance supercapacitor electrodes is a very promising field. However, it remains challenging to have electrode materials that feature ultrahigh specific capacitance. In this work, NiO nanoflowers uniformly grow onto a V4C3TX substrate to form a core–shell hierarchical V4C3TX@NiO heterostructure, and then the heterostructure is incorporated into a 3D interconnected porous hydrogel via a hydrothermal graphene oxide (GO)-gelation method at low temperatures. Due to the synergistic effect among each components as well as the significant prevention of the aggregation of V4C3TX, the free-standing V4C3TX@NiO-reduced graphene oxide (RGO) heterostructured hydrogel electrodes exhibit an ultrahigh specific capacitance of up to 1009.5 F g−1 at 1 A g−1, in comparison to those of V4C3TX@NiO (665.3 F g−1) and V4C3TX (184 F g−1), excellent cycling stability (capacity retention rate is 97.4% for the device after 10 000 cycles at 10 A g−1), and a maximum energy density of 61.13 W h kg−1 at a power density of 526.32 W kg−1. This work highlights the unique potential of V4C3TX-based heterostructured hydrogels as inspired electrode materials for low-cost supercapacitor devices.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2024
·
IF 7.2
Yichen Qi,Zeyang Zhang,Qinke Tang,Jiangchuan Liu,Rui Shi,Jiguang Zhang,Yana Liu,Jun Wang,Jiankun Zhang,Shihao Chen,Yunfeng Zhu
Catalysis has been demonstrated to be effective in enhancing the kinetics of MgH2, which has been widely investigated as one of the most promising solid-state hydrogen storage materials. It is essential and challenging to design catalysts with high activity and to understand the corresponding interaction mechanisms between the catalysts and MgH2, especially for multiphase catalyst systems. In this study, an elaborated VS2/NiS2 catalyst based on well-combined components and heterostructure is exploited to substantially improve the hydrogen storage performance of MgH2. Impressively, rapid dehydrogenation (3.4 wt % H2 in 900 s at 498 K) and low-temperature hydrogenation (3.7 wt % H2 in 7200 s at 348 K) properties are achieved in the MgH2–VS2/NiS2 system. The activation energies for the hydrogen absorption/desorption are calculated to be 32.1/86.7 kJ mol–1, which represents a considerable reduction of 60.9% and 43.6% compared to the as-milled MgH2, respectively. Detailed investigations reveal that the enhanced hydrogen absorption/desorption kinetics are mainly attributed to the synergistic effect induced by the in situ-formed Mg2Ni/VH2 heterostructure and the “hydrogen pump” of Mg2Ni/Mg2NiH4. The Mg2Ni/VH2 heterostructure elongate Mg–H bonds, while the “hydrogen pump” of Mg2Ni/Mg2NiH4 facilitate H transfer. This work offers a fresh perspective for application of multicomponent catalysts in the field of metal hydrides.
研究领域:
材料科学
·
催化化学
✓ 已验证
DOI
高影响因子
Small
·
2025
·Vol. 21
·期 15
·2412473
·
IF 12.1
Xinyu Zhu,Minghao Fang,Bozhi Yang,Shaorou Ke,Meiling Zhan,YuanMeng Wang,Shujie Yang,Xin Li,Yanghong Li,Xin Min
Facing the complex application environment and overall inefficiency in the complete water-splitting process, the development of highly efficient and stable catalytic materials is urgently required. This study innovatively proposes and for the first time implements a rapid synthesis technique driven by microwave-induced sulfur sublimation, successfully preparing MS 2 /RuS 2 (M = Co, Fe, Ni) heterostructure interfaces with high structural stability and uniform active site distribution within merely 60 s. By incorporating iron-group sulfides, the electronic structure of pyrite-type RuS 2 is effectively modulated, enabling the developed MS 2 /RuS 2 @G catalyst to exhibit superior activity in alkaline environments. Particularly, the cobalt-based sulfide regulated pyrite-type RuS 2 (CoS 2 /RuS 2 @G) achieves a mass activity in the hydrogen evolution reaction (HER) that is 15.4 times that of 20 wt.% Pt/C, and in the oxygen evolution reaction (OER), it surpasses commercial IrO 2 by two orders of magnitude. This research not only provides a new pathway for enhancing the performance and environmental adaptability of water-splitting catalysts but also presents a simple and universal method to boost catalytic activity through a synergistic modulation strategy.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Ning Zhang,Zhuhe Zhai,Yueru Yan,Xuejiao Feng,Shengqiang Chen,Yafei Zhao,Bing Zhang
Rationally designing heterostructured photocatalysts to expedite the separation/transfer of photoinduced electrons/holes is regarded as an exceptionally efficient and simple strategy for promoting the photocatalytic hydrogen production from water splitting. To this end, an effective photocatalyst (Co-MoS 2 /ZIS) was constructed via in-situ growth of two-dimensional (2D) ZnIn 2 S 4 (ZIS) nanosheets on 2D Co doped MoS 2 (Co-MoS 2 ) nanoplates to obtain 2D/2D heterostructure. The optimized 5 wt% 20-Co-MoS 2 /ZIS photocatalyst displays a remarkably higher photocatalytic water splitting performance with hydrogen generation rate of 2405.34 μmol g -1 h −1 than that of pure ZIS (419.69 μmol g -1 h −1 ). Additionally, it also demonstrates good stability and reusability with unconspicuous and insignificant decrease of activity after eight cycles and 24 h. The improved photocatalytic hydrogen production performance may be attributed to the extraordinary heterostructure of Co-MoS 2 /ZIS, the doping of Co in MoS 2 and the thick/flat surface of Co-MoS 2 , which provide large close contact interface and plentiful active sites, and prevent the aggregation of ZIS and Co-MoS 2 , thus shortening the transport distance, improving the light absorption and accelerating the separation/transfer of the photoinduced electrons/holes. This work offers a rational and feasible method for coupling 2D ZIS nanosheets with other 2D nanoplates for enhanced photocatalytic hydrogen generation from water splitting.
研究领域:
材料科学
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 49
·36181-36192
·
IF 3.9
Bo Zhang,Chaoqi Li,Shasha Liu,Lixuan Zhuang,Weiqi Zhang,Limei Huang,Zhenzhen Jia,Dongdong Chen,Xiang Li
A CaMnO3/g-C3N4 heterostructure, demonstrating promising photocatalytic performance for tetracycline (TC), was successfully synthesized using a straightforward calcination approach in this study. A series of characterization methods were employed to assess the physicochemical properties and visible-light responsiveness of the synthesized photocatalysts. The photocatalytic degradation rates of TC for the three prepared samples were evaluated. The results indicate that the CaMnO3/g-C3N4 composite exhibits the highest photocatalytic activity under visible-light irradiation, surpassing that of the individual components. Specifically, the degradation rate of CaMnO3/g-C3N4 is 0.031 min−1, which is 2.07 and 2.82 times greater than that of the pristine g-C3N4 and CaMnO3, respectively. Our findings highlight the significant potential of eco-friendly perovskites in developing visible-light-activated g-C3N4-based heterostructures for practical photocatalytic applications.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Jian Tang,Jun Fang,Haochen Yao,Jianglong Wei,Geng Gao,Yusong Yang,Bin Yang,Yaochun Yao
Hierarchical structure design and heterostructure engineering are effective strategies for enhancing hydrogen evolution reaction (HER) performance, yet their synergistic integration remains underexplored. In this work, a novel hierarchical P-NiMoO 4 @Net-like Ni 2 P heterostructure HER electrocatalyst was prepared via a two-step hydrothermal method followed by low-temperature phosphorization. The three-dimensional net like Ni 2 P was closely integrated with one-dimensional phosphorus-doped NiMoO 4 micro/nanorod arrays, enabling hierarchical structural assembly and the formation of synergistic heterointerfaces. The hierarchical structure significantly increased active site exposure, with a double-layer capacitance of 254.4 mF cm −2 , more than five times that of single-component Ni 2 P (48.4 mF cm −2 ). Density functional theory calculations revealed that the heterostructure lowered the d-band center of active Ni 3 sites and optimized the hydrogen adsorption energy, thereby enhancing HER activity. The P-NiMoO 4 @Net-like Ni 2 P catalyst exhibited an alkaline HER overpotential of 49 mV at a current density of 10 mA cm −2 . It also maintained stable operation for 100 h at 10mA cm −2 and 120 h at 100mA cm −2 . This study demonstrates the potential of integrating hierarchical and heterostructural strategies, providing a reference for advanced nanostructured catalyst development.
研究领域:
材料科学
·
电化学
·
催化科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Chongxi Zhang,Fengting Li,Dong Wu,Qingmeng Guo,Zhanning Liu,Zhikun Wang,Zixi Kang,Lili Fan,Daofeng Sun
Integration of cobalt phosphides (Co2P and CoP) in a carbon matrix shows great promise for developing high-performance catalysts for water electrolysis. Nevertheless, the controlled synthesis of these two phases with an effective interface, uniform dispersion, and a simplified synthesis process is still challenging. Herein, we proposed a strategy that involves pre-construction of the Co/CoO@C heterostructure followed by post-conversion by phosphorization to achieve the precise synthesis of the Co2P/CoP@C heterostructure, which was realized by utilizing a MOF as the self-sacrificial template. The oxygen-coordinated MOF that shows advantages in building the Co/CoO heterostructure was employed in this work and grown into a high-quality membrane via cathodic electrodeposition on the graphite substrate (Gss). The obtained catalyst (Gss-Co2P/CoP@C-800) requires 146 and 365 mV overpotentials to achieve a current density of 100 mA cm−2 for the HER and OER, respectively, and 1.54 V to achieve a current density of 10 mA cm−2 for water electrolysis. Beyond the significantly enhanced conductivity that originates from the robust interaction between the MOF and Gss, the establishment of an effective Co2P/CoP interface also plays a pivotal role in contributing to the high performance of Gss-Co2P/CoP@C-800. As revealed by density functional theory (DFT) calculations, the unique d-orbital electron distribution of Co2P/CoP and the enhanced state density near the Fermi level facilitate its efficient electron transport and render the Co2P/CoP heterostructure region a crucial active site for water electrolysis. This study will provide new insights into the rational design and construction of heterostructures based on MOFs for efficient and green energy conversions.
研究领域:
材料科学
·
电化学
·
催化
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Zhicong Yuan,Xuelian Chen,Xiqiang Pan,Guojuan Hai
The development of efficient electrocatalysts through heterostructure engineering is crucial for boosting the oxygen evolution reaction (OER) kinetics. Herein, we demonstrate a hierarchical MIL-53/NiCu-LDH(12) heterostructure in-situ grown on nickel foam (NF), where the MIL-53 component is controllably constructed on NiCu-LDH/NF to establish robust interfacial contact and electronic coupling. This multi-level architecture synergistically endows the catalyst with enlarged electrochemical active surface area, abundant accessible active sites, accelerated electron transfer kinetics, and reduced band gap. Remarkably, operando characterization reveals that the heterojunction undergoes partial structural reconstruction during OER to generate γ-FeOOH/γ-NiOOH active phases. The formed Fe-O-Ni bridging bonds facilitate interfacial charge redistribution, which effectively modulates the electronic configuration and optimizes reaction intermediates adsorption. Benefiting from these merits, the MIL-53/NiCu-LDH(12)/NF electrode delivers exceptional alkaline OER performance, requiring ultralow overpotentials of 160 and 226 mV to achieve current densities of 10 and 100 mA cm −2 , respectively, along with a small Tafel slope of 42 mV dec −1 . This work proposes an innovative strategy integrating hierarchical architecture design with interfacial electronic modulation for developing advanced transition metal-based OER electrocatalysts.
研究领域:
材料科学
·
电化学
✓ 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）