ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Kun Liu,Yinshi Li
Formic acid (FA), a liquid hydrogen storage carrier, can release hydrogen via photothermal catalysis, providing a clean and sustainable solution toward a carbon-neutral energy cycle. Despite recent advances in the design of efficient catalysts, the development of advanced systems with high H2 yield, stability, and durability remains challenging due to the inefficient photothermal conversion and mass transfer in the traditional liquid–solid bulk system, as well as the trade-off between hydrogen storage density and dehydrogenation rate. Here, we address these challenges by creating a photothermal-induced dual-interface characterized by high spectral absorption and low heat loss, a facile supply of FA, and vaporization of FA to minimize the energy barrier of the reaction. As a result, a record hydrogen evolution rate (200.9 mmol g–1 h–1) is achieved in a high concentration (26 M) of FA, which is about 15 times higher than the liquid–solid bulk system. In addition, it can be operated continuously for more than 192 h without additive addition and energy consumption, providing a strategy for accelerating interfacial mass transfer to improve catalytic activity, and also presents a reference for sustainable hydrogen production.
研究领域:
材料科学
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能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Communications Materials
·
2025
·Vol. 6
·期 1
·1-12
·
IF 9.6
Ke Shaorou,Mi Ruiyu,Min Xin,Zhu Xinyu,Wu Congyi,Li Xin,Yang Bozhi,Wu Xiaowen,Liu Yangai,Huang Zhaohui,Fang Minghao
Supported nanocatalysts are crucial for hydrogen production, yet their activity and stability are challenging to manage due to complex metal-support interfaces. Herein, we design Pt@ anatase&rutile-TiO 2 with a strong-weak dual interface by modifying TiO 2 using high-energy ball milling and in-situ reduction to vary surface energies. Experiments and density functional theory calculations reveal that the strong Pt-anatase TiO 2 interface enhances hydrogen adsorption. In contrast, the weak Pt-rutile TiO 2 interface facilitates hydrogen desorption, simultaneously preventing Pt agglomeration and increasing reaction rate. As a result, the tailored catalyst has a 529.3 mV overpotential at 1000 mA cm −2 in 0.5 M H 2 SO 4 , 0.69 times less than commercial Pt/C. It also possesses 8.8 times the mass activity of commercial Pt/C and maintains a low overpotential after 2000 cyclic voltammetry cycles, suggesting high activity and stability. This strong-weak dual interface engineering strategy shows potential for overall water splitting and proton exchange membrane water electrolyzer, advancing the design of efficient supported nanocatalysts.
研究领域:
材料科学
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电催化
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能源转换
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·Vol. 20
·期 38
·2402863
·
IF 13
Nan He,Xisheng Sun,Haonan Wang,Bingsen Wang,Dawei Tang,Lin Li
Facing the increasing global shortage of freshwater resources, this study presents a suspended multilayer evaporator (SMLE), designed to tackle the principal issues plaguing current solar-driven interfacial evaporation technologies, specifically, substantial thermal losses and limited water production. This approach, through the implementation of a multilayer structural design, enables superior thermal regulation throughout the evaporation process. This evaporator consists of a radiation damping layer, a photothermal conversion layer, and a bottom layer that leverages radiation, wherein the bottom layer exhibits a notable infrared emissivity. The distinctive feature of the design effectively reduces radiative heat loss and facilitates dual-interface evaporation by heating the water surface through mid-infrared radiation. The refined design leads to a notable evaporation rate of 2.83 kg m −2 h −1 . Numerical simulations and practical performance evaluations validate the effectiveness of the multilayer evaporator in actual use scenarios. This energy-recycling and dual-interface evaporation multilayered approach propels the design of high-efficiency solar-driven interfacial evaporators forward, presenting new insights into developing effective water-energy transformation systems.
研究领域:
材料科学
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能源技术
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemCatChem
·
2021
·Vol. 13
·期 23
·4937-4947
·
IF 5.686
Chenglin Miao,Fengyu Zhang,Luoyu Cai,Tianli Hui,Junting Feng,Dianqing Li
Graphical Two kinds of electron-rich interface sites are clearly identified in ultrathin Pt/CoAl-LDH catalyst. A series of technologies found that the Pt−V O −Co δ+ interface site can change the adsorption mode of C=O bond, and the Pt−V Co −OH δ− interface site facilitates the mobility of active hydrogen. Therefore, the ultrathin catalyst exhibits enhanced COL yield under the synergistic effect of the dual interface sites. Focusing on the simultaneous enhancement of activity and selectivity in α, β-unsaturated aldehyde hydrogenation, we designed and prepared an ultrathin CoAl-LDH supported Pt catalyst. A series of technologies revealed the ultrathin CoAl-LDH support possesses the characteristic of dual defects, oxygen vacancy (V O ) and cobalt vacancy (V Co ). Then, two kinds of vacancy related interface sites were identified, namely Pt−V O −Co δ+ and Pt−V Co −OH δ− . Compared with the bulk catalyst, the ultrathin catalyst exhibits both enhanced intrinsic activity and C=O bond selectivity under the synergistic effect of the dual interface sites. Specifically, the Pt−V O −Co δ+ interface site changes the adsorption mode of cinnamaldehyde and promotes the activation of C=O bonds, thus leading to the improved cinnamyl alcohol selectivity. The H atoms of the Pt−V Co −OH δ− interface site participate in the hydrogenation process, which facilitates the mobility of active hydrogen and therefore promotes the intrinsic activity. More importantly, the ultrathin catalyst shows good reusability.
研究领域:
催化化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS ES&T Engineering
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2022
·
IF 0
Xiangyu Ma,Hui Xu,Zhang Liu,Yanfei Liu,Chen Wang,Meiqing Shen,Chun Du,Bin Shan
Catalytic oxidation is a valuable residual methane removal method, and Pd-based catalysts are the most robust and widely applied system. Yet, they suffer from poor stability in practical applications due to sintering and water poisoning. In this work, we prepared a high-performance PdNi/Al2O3 catalyst with PdO-NiO and PdO-NiAl2O4 dual interfaces. PdNi/Al2O3 showed excellent hydrothermal stability after aging at 750 °C, 10% H2O for 72 h, with the T50 remaining below 315 °C. In addition, compared to bare Pd/Al2O3, PdNi/Al2O3 exhibited a better low-temperature activity with a T50 of 287 °C, rivaling state-of-the-art Pd-based catalysts. Combining structural characterizations and DFT calculations, it was shown that dual interfaces promoted the activation of methane C–H bonds and suppressed the adsorption of surface water/hydroxyl groups and agglomeration of PdO particles. This study has provided new perceptions for exploring the influence of interfacial interactions and offered a route to synthesize high-stability palladium catalysts.
研究领域:
催化化学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
MOLECULES
·
2023
·Vol. 29
·期 1
·175
·
IF 4.6
Xiaoxian Liu,Juan Liu,Xiaoyu Zhao,Dianhong Chai,Nengwen Ding,Qian Zhang,Xiaocheng Li
For Si/C anodes, achieving excellent performance with a simple fabrication process is still an ongoing challenge. Herein, we report a green, facile and scalable approach for the in situ synthesis of Si@C anodes during the electrode manufacturing process by partially carbonizing Si nanoparticles (Si NPs) and dual polymers at a relatively low temperature. Due to the proper mass ratio of the two polymer precursors and proper carbonization temperature, the resultant Si-based anode demonstrates a typical Si@C core–shell structure and has strong mechanical properties with the aid of dual-interfacial bonding between the Si NPs core and carbon shell layer, as well as between the C matrix and the underlying Cu foil. Consequently, the resultant Si@C anode shows a high specific capacity (3458.1 mAh g−1at 0.2 A g−1), good rate capability (1039 mAh g−1at 4 A g−1) and excellent cyclability (77.94% of capacity retention at a high current density of 1 A g−1after 200 cycles). More importantly, the synthesis of the Si@C anode is integrated in situ into the electrode manufacturing process and, thus, significantly decreases the cost of the lithium-ion battery but without sacrificing the electrochemical performance of the Si@C anode. Our results provide a new strategy for designing next-generation, high-capacity and cost-effective batteries.Keywords:silicon anode;partial carbonization;dual polymer;in situ synthesis;dual-interfacial bonding
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2019
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IF 15.548
Rong Shao,Jin Niu,Feng Zhu,Meiling Dou,Zhengping Zhang,Feng Wang
In this work, we demonstrate an efficiency and versatile strategy for the synthesis of Si-based anodes using low-cost biomass and commercially available Si nanoparticles as precursors via conventional slurry coating and low-temperature pyrolysis . Due to the tailored and rational design, gelatin-derived carbon with numerous heteroatoms not only acts as a “conductive skeleton” to enhance the electron/ion transfer but also simultaneously accommodate the Si expansion and immobilize the Si on the current collector via “dual-interfacial bonding”. Without additional binder and conductive agents, the obtained Si-based anode exhibits high initial columbic efficiency (85.3%), high gravimetric capacity (3160 mAh g −1 at 0.2 A g −1 ), large areal capacity (2.81 mAh cm −2 at 0.18 mA cm −2 , approaching the commercial LIB requirement), good rate capability (1613 mAh g −1 at 5 A g −1 ) and cycling performance. Consequently, an assembled Li-ion capacitor utilizing the Si-based anode exhibits high energy density (213 Wh kg −1 ), high power density (22.3 kW kg −1 ), low discharge rate and long lifetime. The scalable synthetic method combined with high performance making this Si-based anode promising for practical applications.
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 Energy Chemistry
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2022
·
IF 13.599
Xi Wang,Yong Wang,Yiyu Wu,Yunmiao Fan,Yang Tian
Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) solid garnet-type electrolyte has been widely reported due to its outstanding safety and electrochemical stability. However, the inherent rigidity and brittleness of LLZTO lead to poor contact with anode/cathode and the operation failure of full cells. Herein, the dual-interlayers are constructed as the fast interfacial ion-migration channel by using Ti 3 C 2 T x (MXene, T x is –O, –OH, –F) with trace ionic liquid (IL), which promote the intimate contact between LLZTO and anode/cathode and suppress Li-dendrites growth. Notably, IL can wet the cathode to promote intimate interface contact and be decomposed into some inorganic compounds (such as Li 3 N, LiF, and Li 2 S x ), resulting in reduced interfacial resistance and fast Li-ion transportation. Consequently, in the prepared Li-symmetric cell, the interfacial resistance on the anode side plunges to 33.1 Ω cm −2 , and stably maintains over 1000 h without short circuit at 0.05 mA cm −2 . The full cell of Li|LiFePO 4 delivers a high initial capacity of 158.52 mA h g −1 and outstanding retention of 90.18% after 100 cycles at 60 °C and 0.2 C. Our work provides an efficient strategy to design dual-interlayers between LLZTO and anode/cathode for the interfacial modification to enhance the performance of solid garnet batteries.
研究领域:
材料科学
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电化学
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固态电池
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界面工程
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能源材料
✓ 已验证
DOI
高影响因子
Matter
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2025
·
IF 17.5
Wenjuan Jiang,Cheng Peng,Haokun Jiang,Mingzhe Zhu,Zhongmin Zhou
Low exciton binding energy and well-aligned energy levels are crucial for achieving efficient perovskite solar cells (PSCs). Here, we introduce pyridinium tetrafluoroborate (PyHBF 4 ) into the perovskite layer to regulate the interfaces between the perovskite and the charge transport layers effectively. This results in dual interface dipoles due to the migration of BF 4 − , which accelerates the separation of hole-electron pairs and the extraction of carriers. Ab initio and DFT calculations, combined with various experimental characterizations, reveal that the thermodynamically favored combination of PyH + and I − causes BF 4 − to separate from the PyH + cation and migrate downward along the Pb-I framework within the perovskite layer. In addition, the formation of the secondary compound PyHI on the top surface enhances cation-π interaction with Spiro-OMeTAD and increases the hydrophobicity of the perovskite film. Consequently, the PyHBF 4 -treated PSCs achieve a champion efficiency of 24.93%, along with improved thermal, humidity, and operational stability.
研究领域:
材料科学
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2024
·
IF 3.8
Li Xu,Lingfeng Zhou,Minxing Yan,Guangjie Luo,Deren Yang,Yanjun Fang
Thermal evaporation emerges as a promising method for the scale-up fabrication of perovskite light-emitting diodes (PeLEDs) due to its superior repeatability and compatibility with the existing display industry compared to conventional solution process. However, the brightness of current high-efficiency thermally evaporated PeLEDs is generally constrained to a range of thousands of cd/m 2 . Herein, we propose a dual-interface engineering strategy to modulate the charge injection properties and passivate surface defects in the co-evaporated Cs–Pb–Br perovskite emitter. Our findings demonstrate that introducing 4,4′-Cyclohexylidenebis [N, N-bis(4-methylphenyl) benzenamine] additive to the bottom hole transport layer poly (9-vinylcarbazole) not only facilitates hole injection but also increases the conductivity. Meanwhile, the deposition of functionalized phenylethylammonium bromide salts with a specific number of fluorine atoms passivates the top surface defects and enhances the charge transport simultaneously. Consequently, the optimal PeLEDs achieve a maximum luminance of 75,012 cd/m 2 , marking one of the brightest thermally evaporated PeLEDs reported to date. The proposed strategy holds significant potential to guide the preparation of high-performance thermally evaporated PeLEDs for high-radiance display applications.
研究领域:
材料科学
·
光电子学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xiaowen Zhong,Jianglin Liu,Bowen Liu,Xiaofei Wang,Xuliang Lin
The development of productive and durable non-precious metal catalysts for the sluggish oxygen evolution reaction (OER) is critical for water splitting. Herein, a novel NiSe-FeO x heterojunction encapsulated in lignin-derived carbon layer (NiSe-FeO x @LC) was synthesized via hydrothermal self-assembly and in-situ pyrolysis . NiSe-FeO x @LC exhibited excellent OER performance with an overpotential of 265 mV at 50 mA·cm −2 , a Tafel slope of 83 mV·dec −1 , as well as long-term stability. Both experimental and DFT calculation results indicated that the doping of FeO x into NiSe@LC successfully optimized the dual interface structure between NiSe and FeO x , thereby promoted the d-bands orbital hybridization, that facilitated electron transfer . Besides, the carbon coating effectively protected the NiSe-FeO x components from leaching and agglomerating during the reaction. This study provides insight into the significance of lignin-derived carbon-encapsulated metallic catalyst for electrocatalytic OER process.
研究领域:
材料科学
·
电催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Zhengyan He,Shufang Zhang,Yanqiang Hu,Quanming Geng,Wenkai Zhao,Dehua Wang,Qian Tao,Qinfeng Xu,Mengmeng Jiao
In perovskite solar cells (PSCs), rapid charge transfer at the interfaces between photoactive layer and charge transport layers is very important. Various defects and energy barriers at the interfaces will lead to non-radiative recombination of charge carriers in the charge transfer process, which is not conducive to charge collection and eventually hinder the improvement of power conversion efficiency (PCE) and stability of PSCs. Herein, we report a dual interface modification strategy by using different phosphonic acid molecules to modify the interface between SnO 2 layer and perovskite layer and the interface between perovskite layer and hole transport layer, respectively. Acidic diphenylphosphinate chloride (DPC) with UV resistance is employed to modify SnO 2 surface before depositing perovskite layer to alleviate the corrosion of OH − in SnO 2 to perovskite film and regulate the crystal growth process of perovskite. Methyldiphenylphosphine oxide (MPO) that can coordinate with Pb 2+ is used to post-treat the surface of perovskite film to passivate defects at the film surface and grain boundary. The effects of organic interface modifiers on charge transport and charge recombination are comprehensively studied by photoluminescence spectra and electrical measurement. The optimal FA 0.85 Cs 0.15 PbI 3 device with active area of 0.255 cm 2 obtained a PCE of 23.37 %. In addition, the device with working area of 1 cm 2 achieved the best PCEs of 20.29 %. More interestingly, owing to the strong ultraviolet light absorption ability of DPC, the final device with the dual interface modification can still maintain 91.4 % of the initial efficiency after 1000 h in air and 87.8 % when placed in AM1.5G light for 500 h.
研究领域:
材料科学
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能源研究
✓ 已验证
产品关联
DOI
高影响因子
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