Advanced Science
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2025
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IF 14.1
Fengyi Zhong,Jianping Sheng,Chenyu Du,Ye He,Fengying Zhang,Yanjuan Sun,Ying Zhou,Fan Dong
Heterojunctions, known for their decent separation of photo-generated electrons and holes, are promising for photocatalytic CO 2 reduction. However, a significant obstacle in traditional post-assembled heterojunctions is the high interfacial barrier for charge transfer caused by atomic lattice mismatch at multiphase interfaces. Here, as research prototypes, the study creates a lattice-matched co-atomic interface within CsPbBr 3 -CsPb 2 Br 5 polytypic nanocrystals (113-125 PNs) through the proposed in situ hybrid strategy to elucidate the underlying charge transfer mechanism within this unique interface. Compared to CsPbBr 3 nanocrystals, the 113–125 PNs exhibit a remarkable 3.6-fold increase in photocatalytic CO 2 reduction activity (173.3 µmol −1 g −1 within 5 h). Furthermore, Kelvin probe force microscopy results reveal an increase in the built-in electric field within this lattice-matched co-atomic interface from 43.5 to 68.7 mV, providing a stronger driving force for charge separation and directional migration. Additionally, ultrafast transient absorption spectroscopy uncovers the additional charge carrier transfer pathways across this lattice-matched co-atomic interface. Thus, this unique co-atomic interface significantly promotes the interfacial electronic coupling and mitigates the charge transfer barrier, thus facilitating efficient charge separation and transfer. These insights underscore the importance of interfacial structure in heterojunction design and comprehending the intricate interplay between interface and carrier dynamics.
研究领域:
材料科学
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化学
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DOI
PubMed
高影响因子
ACS Nano
·
2021
·
IF 15.881
Xinliang Li,Mian Li,Kan Luo,Yue Hou,Pei Li,Qi Yang,Zhaodong Huang,Guojin Liang,Ze Chen,Shiyu Du,Qing Huang,Chunyi Zhi
Dendrite growth and low Coulombic efficiency caused by uneven diffusion and electrodeposition of Zn2+ ions have emerged as a barrier to exploit the Zn metal anode. In this work, we demonstrate the stoichiometric halogenated MXenes (Ti3C2Cl2, Ti3C2Br2, and Ti3C2I2) as an artificial layer that can induce the uniform Zn deposition. The efficient redistribution effect results from the coherent heterogeneous interface reconstruction and regulated ion tiling by halogen surficial termination. The synergetic effects of high lattice matching (90%) between the adopted MXenes and Zn, as well as the positive halogen regulation, Zn2+ ions are guided to nucleate uniformly on the most extensive (000l) crystal plane of the MXene matrix and grow in a planar manner. In terms of Zn ion regulation, Cl termination is found to be more effective than O/F, Br, and I due to its moderate adsorption and diffusion coefficiency for Zn2+ ions. The Ti3C2Cl2–Zn anode achieves a life extension of over 12 times (840 h at 2 mA cm–2//1 mAh cm–2) over that of the bare Zn anode and serves more than 9000 cycles in a battery with a Ti3C2I2 cathode at a high rate of 3 A g–1. Given the abundance of lattice parameters and terminations of MXene materials, the developed strategy is expected to be extended to other metal anode systems.
研究领域:
材料科学
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电化学
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能源存储
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DOI
PubMed
高影响因子
Small
·
2023
·Vol. 19
·期 45
·2302683
·
IF 13.3
Bixia Yang,Xingpeng Jiang,Yanting Zheng,Linxin Zhou,Jiawei Yan,Zanyong Zhuang,Yan Yu
Orderly heterostructured catalysts, which integrate nanomaterials of complementary structures and dimensions into single-entity structures, have hold great promise for sustainability applications. In this work, it is showcased that air as green reagent can trigger in situ localized phase transformation and transform the metal carbonate hydroxide nanowires into ordered heterostructured catalyst. In single-crystal nanowire heterostructure, the in situ generated and nanosized Co 3 O 4 will be anchored in single-crystal Co 6 (CO 3 ) 2 (OH) 8 nanowires spontaneously, triggered by the lattice matching between the (220) plane of Co 3 O 4 and the (001) plane of Co 6 (CO 3 ) 2 (OH) 8 . The lattice matching allows intimate contact at heterointerface with well-defined orientation and strong interfacial coupling, and thus significantly expedites the transfer of photogenerated electrons from tiny Co 3 O 4 to catalytically active Co 6 (CO 3 ) 2 (OH) 8 in single-crystal nanowire, which elevates the catalytic efficiency of metal carbonate catalyst in the CO 2 reduction reaction ( V CO = 19.46 mmol g −1 h −1 and V H2 = 11.53 mmol g −1 h −1 ). The present findings add to the growing body of knowledge on exploiting Earth-abundant metal-carbonate catalysts, and demonstrate the utility of localized phase transformation in constructing advanced catalysts for energy and environmental sustainability applications.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
PubMed
高影响因子
Journal of Water Process Engineering
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2024
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IF 6.3
Xiaoqing Wang,Cong Du,Yue Yu,Weiyi Li,Tuo Li,Siyuan Wang,Shanjun Mao,Yongjiang Wang,Junzi Zhao,Chunhua Xiong
Given the crucial impact of lattice matching on the charge-transfer efficiency and overall catalytic activity in heterojunctions, we pre-designed an α-Bi 2 O 3 /Co 3 O 4 photocatalytic system with high lattice matching to reduce dangling bonds and lattice mismatches in heterojunctions (A-axis: 2.77 %, B-axis: 0.86 %). The α-Bi 2 O 3 /Co 3 O 4 heterojunction was synthesized using a coprecipitation strategy and showed a wide optical absorption range, with enhanced absorption beyond 420 nm, and ideal photoelectrochemical responses (the highest current intensity: 0.26 μA (cm 2 ) −1 ). Under simulated sunlight irradiation, the heterojunction removed 97.30 % and 85.32 % of methylene blue and tetracycline, respectively, within 120 min. The degradation was corroborated by total organic carbon removal efficiencies, with methylene blue achieving 92.51 % and tetracycline 87.33 % within 120 min, indicative of the effective mineralization process. Our density functional theory calculations indicated that α-Bi 2 O 3 and Co 3 O 4 generated an internal electric field during the Fermi equilibrium process, which caused the conduction band electrons of α-Bi 2 O 3 to flow towards the valence band of Co 3 O 4 , forming a Z-scheme electron flow. Electrons and holes could be separated and transported in heterojunctions with low interface resistance and then react with dissolved oxygen to generate highly active OH and O 2 − radicals, which induced the efficient degradation of organic pollutants. We explored the key influence of structure on catalytic activity on lattice matching and analyzed the catalytic mechanism of α-Bi 2 O 3 /Co 3 O 4 heterojunctions in terms of charge properties. Our findings should serve as a crucial reference for developing excellent structured photocatalytic materials.
研究领域:
材料科学
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环境科学
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计算化学
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产品关联
DOI
高影响因子
Journal of the American Chemical Society
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2022
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IF 16.383
Qian Zhang,Yong-Hui Song,Jing-Ming Hao,Yi-Feng Lan,Li-Zhe Feng,Xue-Chen Ru,Jing-Jing Wang,Kuang-Hui Song,Jun-Nan Yang,Tian Chen,Hong-Bin Yao
All-inorganic CsPbI3 perovskite is attractive for deep-red light-emitting diodes (LEDs) because of its excellent carrier mobility, high color purity, and solution processability. However, the high phase transition energy barrier of optically active CsPbI3 black phase hinders the fabrication of efficient and bright LEDs. Here, we report a novel α-BaF2 nanoparticle substrate-promoted solution-processable heteroepitaxial growth to overcome this hindrance and obtain high-quality optically active γ-CsPbI3 thin films, achieving efficient and bright deep-red LEDs. We unravel that the highly exposed planes on the α-BaF2 nanoparticle-based heteroepitaxial growth substrate have a 99.5% lattice matching degree with the (110) planes of γ-CsPbI3. This ultrahigh lattice matching degree initiates solution-processed interfacial strain-free epitaxial growth of low-defect and highly oriented γ-CsPbI3 thin films on the substrate. The obtained γ-CsPbI3 thin films are uniform, smooth, and highly luminescent, based on which we fabricate efficient and bright deep-red LEDs with a high peak external quantum efficiency of 14.1% and a record luminance of 1325 cd m–2.
研究领域:
材料科学
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光电技术
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Wenming Shi,Hongjun Zhang,Yingchun Liu,Lang Bian,Wenjing Bi,Yuanhao Deng,Bin Yang
Improving mechanical quality factor Q m is of great significance for high-power applications. Here, a new strategy of the [111] c texture engineering was proposed to enhance the performances of high-power piezoelectric ceramics. The 5 vol% BaTiO 3 (BT) templates with the [111] c preferred orientation were introduced into matrix powders of 0.03 Pb(Mn 1/3 Nb 2/3 )O 3 –0.33Pb(Ni 1/3 Nb 2/3 )O 3 –0.28 PbZrO 3 –0.36PbTiO 3 (28PZ(R)) to form the [111] c textured ceramics (28PZ(T)), possessing a texture degree of 74 %. The multiple of uniform density in EBSD increased from 0.63 in randomly oriented 28 PZ(R) to 6.63 in 28PZ(T). The good lattice matching between BT templates and textured grains was observed using high-resolution transmission electron microscopy, confirming the microscopic origin of the [111] c texture. The maximum phase angle θ max of 88.2° was quite near 90° in 28PZ(T), ensuring the optimal Q m value of 1275 and the great figure of merit of 255,000 pC/N. The increased Q m in [111] c texture ceramics was confirmed due to the reduced intrinsic polarization directions rather than the pinning effect of the internal bias field. Larger grain sizes with larger domains restrained the movement of domain walls in 28 PZ(T), which was also favorable to higher Q m . This work may provide a new promising route for further high-power applications.
研究领域:
材料科学
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物理学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Chenxi Wu,Huajun Lai,Feng Wang,Dianhui Wang,Weijiang Gan,Yulai She,Zhongmin Wang
V-based alloy membranes have huge potential for hydrogen separation and purification due to their higher hydrogen permeability , but suffer from hydrogen embrittlement . To address this matter, Pd and Fe have been chosen as alloying additions in V-based membranes to inhibit hydrogen embrittlement and maintain high hydrogen permeation performance based on the lattice-matching strategy. The phase structure, composition, microstructure and hydrogen permeation properties of V-Pd-Fe ternary alloy are investigated systematically, and the V-Fe and V-Pd binary alloys are presented for comparison. The results show that the prepared V-Pd-Fe ternary can match almost perfectly with pure V in lattice constants . Attributing to the lattice-matching strategy, the V-Pd-Fe ternary alloy exhibits more excellent hydrogen permeable properties than that of V-Fe and V-Pd binary alloys . The reduction of hydrogen embrittlement is ascribed to the lower hydrogen solubility that induced by the lattice distortion and electronegativity of Fe and Pd. Meanwhile, the manipulated lattice constant that parallel to pure V maintains high hydrogen permeation performance. Additionally, the designed ternary V 87.8 Pd 8 Fe 4.2 alloy exhibits exceptional long-term hydrogen permeation stability at 573 and 623 K, and hydrogen flux gradually decreases at 673 and 723 K is observed due to the interdiffusion between Pd film and V 87.8 Pd 8 Fe 4.2 substrate and defects in the Pd coating. This study offers new scenario and method for optimized hydrogen permeable properties and restrains hydrogen embrittlement in the alloy membrane.
研究领域:
材料科学
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氢能与储能
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金属膜分离技术
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固态氢传输
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合金设计
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物理冶金学
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2022
·Vol. 15
·期 23
·e202201469
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IF 9.14
Jing Peng,Guorui Liu,Xianhui Jiao,Hongqiang Xia,Jing Li,Qingxiang Ma,Jun Jin,Feng Li
Graphical Gloves on : A ZnO/ZnS/ZnIn 2 S 4 (ZnO/ZnS/ZIS) photoanode is fabricated by simple but effective sequential ion-exchange reactions. The prepared coaxial “glove” structure photoanode facilitates protection of the inner layer of ZnO, simultaneously boosting charge separation and the oxygen evolution reaction kinetics and achieving a stable photocurrent density of 1.146 mA cm −2 at 1.2 V RHE , approximately 2-fold higher than that of pristine ZnO. Serious degradation and the short photogenerated carrier lifetime for the wide-bandgap semiconductor ZnO have become prominent issues that negatively affect photoelectrochemical (PEC) water splitting. Herein, a novel electron transport pathway was constructed by simple but effective coaxial growth of ZnO/ZnS/ZnIn 2 S 4 heterostructure nanoarrays to increase the carrier separation efficiency. This new photoanode fulfilled the requirements of both favorable band alignment and stability, achieving a stable photocurrent density of 1.146 mA cm −2 at 1.2 V RHE , which was approximately twice that of pristine ZnO. Detailed experimental studies revealed that the improved PEC activity was due to the lattice-matching interface coherency that activated the carrier transport pathway, giving rise to an optimized interfacial electronic structure for promoted charge separation by the built-in electric field and strengthened water oxidation activity. This design may provide a new approach to fabricating various efficient lattice-matching coherent interface photoanodes for PEC water splitting.
研究领域:
材料科学
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能源科学
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DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
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IF 7.632
Rui Xue,Xiaowen Zhou,Shuai Peng,Pengfei Xu,Siliang Wang,Chao Xu,Wei Zeng,Yi Xiong,Dong Liang
To explore the attractive structural and semiconductive properties of two-dimensional bismuthene, exquisite heterojunctions with less interfacial mismatch between bismuthene and SnO2 nanoparticle are coincidentally architected by a low-temperature procedure, based on a unique self-adaptive attribute of the two-dimensional structure of bismuthene, in combination with the lattice-matching attribute of adjacent lattice-spacing between bismuthene and SnO2. When applied in perovskite solar cells as an electron transport layer, the bismuthene–SnO2 composite layer turns smoother and more transparent and endows higher crystallinity to the upper perovskite layer. Depending on highly conductive bismuthene along with semiconductive bismuthene–SnO2 heterojunctions, the energy band of the integral composite layer is upshifted and the interfacial resistance between the composite layer and the perovskite layer is reduced, effectively accelerating the electron extraction without declining the hole-blocking, in comparison with the pure SnO2 layer. A higher statistical average power conversion efficiency of 18.75% is achieved, compared to the counterpart of 17.35%, and it also maintains a high stability of almost 80% of its initial efficiency even in an ∼5% relative humidity environment for more than 800 h, in contrast to its counterpart, which maintains just 50% efficiency retention.
研究领域:
材料科学
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光伏技术
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纳米技术
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能源材料
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Chen Jiawei,Liu Xiangyu,Cai Bo,Cheng Yuanzhuang,Wen Hao,Zhu Danlei,Xiong Yaonan,Dai Linjie,Yan Xinghua,Xiang Baixu,Luo Xiyu,Feng Wenjing,Du Jiuyao,Dong Shuyue,Shan Qingsong,Chen Shulin,Zeng Haibo,Xiong Qihua,Duan Lian,Ma Dongxin
Perovskite quantum dot light-emitting diodes have rapidly achieved high external quantum efficiencies of over 25%; however, hindered by limited operating stability originating from surface defects or ion migration in quantum dots. Here, we design a lattice-matched anchoring molecule, tris(4-methoxyphenyl)phosphine oxide (TMeOPPO- p ), to anchor the multi-site defects and stabilise the lattice. The target quantum dots exhibit high exciton recombination features with near-unity photoluminescence quantum yields (97%), and the as-fabricated quantum dot light-emitting diodes present a maximum external quantum efficiency of up to 27% at 693 nm, a low efficiency roll-off (over 20% at a current density of 100 mA cm −2 for the typical device) and an operating half-life of over 23,000 h. Besides, the air-processed devices maintain a maximum external quantum efficiency of over 26% with good storage stability. We expect this work to exert a profound influence on rational and on-demand molecule design for perovskite QDs, indicating great promise in optoelectronic applications.
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PubMed
高影响因子
Nature Nanotechnology
·
2024
·
IF 38.1
Huang Xuan,Feng Jie,Hu Shengnan,Xu Bingyan,Hao Mingsheng,Liu Xiaozhi,Wen Yan,Su Dong,Ji Yujin,Li Youyong,Li Yinshi,Huang Yucheng,Chan Ting-Shan,Hu Zhiwei,Tian Na,Shao Qi,Huang Xiaoqing
Constructing regioselective architectures in heterostructures is important for many applications; however, the targeted design of regioselective architectures is challenging due to the sophisticated processes, impurity pollution and an unclear growth mechanism. Here we successfully realized a one-pot kinetically controlled synthetic framework for constructing regioselective architectures in metallic heterostructures. The key objective was to simultaneously consider the reduction rates of metal precursors and the lattice matching relationship at heterogeneous interfaces. More importantly, this synthetic method also provided phase- and morphology-independent behaviours as foundations for choosing substrate materials, including phase regulation from Pd 20 Sb 7 hexagonal nanoplates (HPs) to Pd 8 Sb 3 HPs, and morphology regulation from Pd 20 Sb 7 HPs to Pd 20 Sb 7 rhombohedra and Pd 20 Sb 7 nanoparticles. Consequently, the activity of regioselective epitaxially grown Pt on Pd 20 Sb 7 HPs was greatly enhanced towards the ethanol oxidation reaction; its activity was 57 times greater than that of commercial Pt/C, and the catalyst showed increased stability (decreasing by 16.3% after 2,000 cycles) and selectivity (72.4%) compared with those of commercial Pt/C (56.0%, 18.2%). This work paves the way for the design of unconventional well-defined heterostructures for use in various applications.
研究领域:
材料科学
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催化
·
纳米技术
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产品关联
DOI
PubMed
高影响因子
ACS Photonics
·
2024
·
IF 6.5
Yuzhu Pan,Xin Wang,Dan Zhang,Ziyu Wei,Yubing Xu,Yuwei Li,Qing Li,Zhiwei Zhao,Zhuoya Zhu,Byung Seong Bae,Damian Chinedu Onwudiwe,Xiaobao Xu,Wei Lei
Conventional photodetectors (PDs) sense either a broad waveband light or a selective narrow waveband light, which is plagued by indistinguishable diverse wavebands and is not competent for the dual task of information transfer and encryption in optical communication with an open light transmitting channel. Dual-band PDs with the ability to sense two discrete waveband lights have the potential to remedy the drawbacks of single-band PDs and realize secure optical communication with a straightforward optical encryption strategy. However, previous reports of dual-band PDs usually relied on multistacked photosensitive layers, which suffer from lattice mismatched interfaces contacting between diverse semiconductor layers and complex device fabrication processes. Herein, we propose a novel lattice-matched single-crystal perovskite heterojunction (SCPH) through a facile and low-cost liquid-phase epitaxy process. The fabricated dual-band PD with a structure of Au/MAPbCl3/Bi-MAPbBr3/Bi-MAPbI2.5Br0.5/MAPbI3/Au senses to a broad range of ultraviolet (UV) light and a narrow range of near-infrared (NIR) light while blinding to visible lights in between. At last, a chaos-based double-encrypted secure optical communication system is built using the fabricated UV/NIR dual band SCPH PD as an efficient receiver terminal, where valid information is conveyed by UV and NIR light, respectively, and further superimposed by visible light for separately encrypted transmission. This work provides a facile method to fabricate visible-eliminating UV/NIR dual-band PDs and offers new insights into security optical communication without relying on complicated algorithms.
研究领域:
光电子学
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材料科学
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光子学
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通信工程
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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）