Nature Communications
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2025
·Vol. 16
·期 1
·1-10
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IF 15.7
Feng Xiaohui,Jia Haoran,Li Rongtan,Lin Le,Li Mingrun,Chen Mingshu,Liu Chengxiang,Du Xiangze,Wang Xiaoyue,Ding Yunjie,Mu Rentao,Fu Qiang,Bao Xinhe
ZnCrO x oxides coupled with zeolites (OXZEO) allow direct conversion of syngas into light olefins, while active sites in the composite oxides remain elusive. Herein, we find that ZnO particles physically mixed with ZnCr 2 O 4 spinel particles can be well dispersed onto the spinel surfaces by treatment in syngas and through a reduction-evaporation-anchoring mechanism, forming monodispersed ZnO x species with uniform thickness or dimension on ZnCr 2 O 4 up to a dispersion threshold ZnO loading of 16.0 wt% (ZnCr 2 O 4 @ZnO x ). A linear correlation between CO conversion and surface ZnO loading clearly confirms that the ZnO x overlayer on ZnCr 2 O 4 acts as the active structure for the syngas conversion, which can efficiently activate both H 2 and CO. The obtained ZnCr 2 O 4 @ZnO x catalyst combined with SAPO-34 zeolite achieves excellent catalytic performance with 64% CO conversion and 75% light olefins selectivity among all hydrocarbons. Moreover, the ZnO x overlayer is effectively anchored on the ZnCr 2 O 4 spinel, which inhibits Zn loss during the reaction and demonstrates high stability over 100 hours. Thus, a significant interface confinement effect is present between the spinel surface and the ZnO x overlayer, which helps to stabilize ZnO x active structure and enhance the catalytic performance.
研究领域:
催化化学
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材料科学
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2019
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IF 7.015
Xiaobin Yang,Linlin Yan,Feitian Ran,Avishek Pal,Jun Long,Lu Shao
Janus membranes (JMs) have attracted increasing attention in the fields of liquid manipulation owing to its interesting liquid-unidirectional transportation feature. Nonetheless, most of the currently available methods to fabricate JMs suffer from specific or complicated operations, impeding practical applications of JMs. Herein, a facile liquid/liquid (immiscible oil/water) interface-confined surface engineering strategy was first applied on hydrophilic cotton fabric membrane to construct JM with the aid of mussel-inspired chemistry. The water-infused fabric channels and the unique distribution of amphiphilic C 18 -NH 2 at the oil/water interface enable the unilateral hydrophobicity transformation on fabric. As a result, the as-prepared membranes exhibited asymmetric chemistry, wettability , and surface morphology . The evaluation of water droplet behaviors across the membrane at the oil/water interface verified the water unidirectional transport feature of our JM. In addition, two collectors made by our JMs successfully demonstrated the excellent ability of water collection from both oil/water mixture and water-in-oil emulsion. The newly developed liquid/liquid interface-confined surface engineering strategy provides enormous potential for Janus membrane construction to manipulate liquid transportation towards smart applications.
研究领域:
材料科学
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界面化学
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液体操控
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Huayu Wu,Nuo Xu,Zhouheng Jiang,Anyu Zheng,Qiaofang Shi,Rongguan Lv,Lubin Ni,Guowang Diao,Ming Chen
Necklace-box structural FeS 2 /WS 2 carbon nano-composite fibers (NB FeS 2 /WS 2 -CNFs) are fabricated by electrospinning-sulfuration-hydrothermal process. NB FeS 2 /WS 2 -CNFs exhibit the spatial confined structure, which is able to restrain volume expansion effectively in the process of Na + intercalation/deintercalation and improve the cycling stability and rate performance. NB FeS 2 /WS 2 -CNFs exhibit remarkable initial coulombic efficiency (ICE = 87.0%) and stable long cycle (~422.6 mA h g −1 at 0.5 A g −1 after 500 cycles) for sodium storage capability. The heterojunction interface between FeS 2 and WS 2 can alleviate the damage of the micro-crystal plane and enhance electrochemical kinetic process. The structure evolution and mechanism of sodium storage are explored by ex-situ methods, which further confirm the spatial and interface confinement effect distinctly. In addition, the electrochemical kinetic properties of lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) are compared, thereby revealing the energy storage mechanism and different ion migration modes of the three batteries. This work provides a guide for the synthesis of bimetallic compounds based on the spatial confinement and heterojunction interface confined strategy that efficiently improves energy storage performance of electrode material.
研究领域:
材料科学
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电化学
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DOI
高影响因子
Small
·
2021
·Vol. 17
·期 34
·2101499
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IF 13.281
Wen-Chao Geng,Yu-Jie Zhang,Lan Yu,Jing-Jing Li,Ji-Long Sang,Yong-Jun Li
To develop durable and low-price catalysts of methanol oxidation to commercialize direct methanol fuel cell, many attempts have been made at fabricating Pt-based hybrids by designing component-, morphology-, facet-, integration-pattern-varied nanostructures, and have achieved considerable successes. However, most of present catalysts still lack robust catalytic durability especially owing to the corrosion of mixed carbon and the poor mechanical stability of catalyst layer. Herein, Te nanowire array is transformed at an air/water interface into a 3D Pt 16 Te hierarchical nanostructure via an interface-confined galvanic replacement reaction. As-formed Pt 16 Te nanostructure has an asymmetrical architecture composed of nanotroughs and nanopillars, and nanopillars are perpendicular to nanotroughs with a loose arrangement. Pt 16 Te hierarchical nanostructure has a “self-supported” feature and, when directly used as the catalyst of methanol electrooxidation, exhibits superior catalytic activity (>four times larger in mass activity than state-of-the-art Pt/C in either acidic or basic solution) and long-term durability (after 500 cycles of cyclic voltammetric measurement, more than 55% of the initial specific activity remains whereas Pt/C only remains 22.2% in acidic solution and almost loses all activity in basic solution). This study fully demonstrates that designing “self-supported” catalyst film may be the next promising step for improving the catalytic performance of Pt-based hybrids.
研究领域:
材料科学
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电化学
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纳米技术
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催化
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DOI
PubMed
高影响因子
Nature Communications
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2022
·Vol. 13
·期 1
·1-12
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IF 17.694
Qin Limei,Gan Jie,Niu Dechao,Cao Yueqiang,Duan Xuezhi,Qin Xing,Zhang Hao,Jiang Zheng,Jiang Yongjun,Dai Sheng,Li Yongsheng,Shi Jianlin
Pursuing and developing effective methodologies to construct highly active catalytic sites to maximize the atomic and energy efficiency by material engineering are attractive. Relative to the tremendous researches of carbon-based single atom systems, the construction of bio-applicable single atom materials is still in its infancy. Herein, we propose a facile and general interfacial-confined coordination strategy to construct high-quality single-atom nanotherapeutic agent with Fe single atoms being anchored on defective carbon dots confined in a biocompatible mesoporous silica nanoreactor. Furthermore, the efficient energy conversion capability of silica-based Fe single atoms system has been demonstrated on the basis of the exogenous physical photo irradiation and endogenous biochemical reactive oxygen species stimulus in the confined mesoporous network. More importantly, the highest photothermal conversion efficiency with the mechanism of increased electron density and narrow bandgap of this single atom structure in defective carbon was proposed by the theoretical DFT calculations. The present methodology provides a scientific paradigm to design and develop versatile single atom nanotherapeutics with adjustable metal components and tune the corresponding reactions for safe and efficient tumor therapeutic strategy.
研究领域:
纳米技术
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材料科学
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生物医学工程
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癌症治疗
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DOI
PubMed
高影响因子
Advanced Science
·
2023
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IF 15.1
Yuqian Qiao,Shuilin Wu,Yufeng Zheng,Chaofeng Wang,Zhaoyang Li,Yu Zhang,Shengli Zhu,Hui Jiang,Zhenduo Cui,Xiangmei Liu
Microwave (MV)-trigged dynamic therapy based on MV-responsive materials is promising for treating deep infection diseases that cannot be effectively treated by antibiotics, like life-threatening osteomyelitis. Surface states of materials affect the generation of free charges under the excitation source with energy less than the band gap, consequently influencing the MV dynamic effects. Herein, an MV responsive system with interface confined 2D metal–organic framework (2D MOF) on oxidized carbon nanotube (CNT) is prepared, in which the ultrasmall Cu-based 2D MOF possesses sufficient surface/interface defects, endowing the system a large number of surface states. Under MV irradiation, the synthesized CNT-2D MOF not only efficiently absorbs and converts the microwave into heat for microwaveocaloric therapy (MCT) via enhanced hetero-interfacial polarization, but also generates excited electrons via surface state for microwave dynamic therapy (MDT). This biocompatible CNT-2D MOF exhibits highly effective broad-spectrum antimicrobial activity against seven pathogenic bacteria, including Gram-negative and Gram-positive pathogens, under 7 min MV irradiation. And this system is proven to efficiently eradicate Staphylococcus aureus infected rabbit tibia osteomyelitis. Significantly, MV-excited MCT and MDT of CNT-CuHHTP developed in this study makes a major step forward in antibiotic-free MV therapy in deep tissue bacterial infection diseases.
研究领域:
材料科学
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纳米技术
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生物医学工程
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治疗学
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感染性疾病
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Xicai Tian,Yuan Shu,Panpan Wang,Bochen Zhao,Zequn Zhang,Pengfei Zhang
Developing high-entropy alloy clusters (HEACs) with precise size-composition control and exceptional thermal stability faces persistent synthesis barriers, particularly in controlling Ostwald ripening and particle-migration-driven sintering during catalytic operation. Herein, we demonstrate a mechanochemistry-driven interfacial confinement strategy that enables the self-assembly of Pt-HEACs on MgO nanoarchitectures via dynamic adsorption between Mg(OH) 2 nanoparticles and M x (acac) y precursors. This process produces island-type Pt-HEACs/MgO heterostructures exhibiting exceptional anti-sintering properties, maintaining sub-3 nm dispersion on SiO 2 supports even after 800 ℃ H 2 treatment—a stark contrast to the severe aggregation observed in non-confined counterparts. When evaluated for propane dehydrogenation, the Pt-HEACs/MgO/SiO 2 achieves near-equilibrium propane conversion (45.9 %) and moderate catalyst life time (τ without H 2 ) 546.3 h. Operational spectra and DFT analysis reveal that higher configurational entropy in Pt-HEACs enhances electron enrichment at Pt active sites, which kinetically promotes propylene desorption and consequently suppresses carbon deposition.
研究领域:
催化化学
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材料科学
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纳米技术
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化学工程
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物理化学
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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）