Surfaces and Interfaces
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2025
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IF 6.3
Yu Yang,Zhikun Xu,Tianle Li,Xinzhi Ma,Shuangyan Lin
The development of versatile oxygen evolution reaction (OER) electrocatalysts for ampere-level seawater electrolysis holds enormous promise for clean energy generation. Still, it is hindered by the competing chlorine evolution and severe chloride corrosion. Herein, the V and Fe dual-doped Ni 3 S 2 /Ni(OH) 2 (VFe-Ni 3 S 2 /Ni(OH) 2 ) heterostructure was fabricated on nickel foam as an OER catalyst for direct seawater electrolysis. The dual-doping of V and Fe optimizes the electronic structure cooperatively, improves conductivity, and enriches active sites of Ni 3 S 2 /Ni(OH) 2 , boosting OER performance at ampere-level current density. The optimal electrode V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 requires only 385 mV overpotential to arrive 1 A/cm 2 and works stably for over 100 h at 100 mA/cm 2 in seawater electrolyte. The assembled electrolyzer V 0.03 Fe-Ni 3 S 2 /Ni(OH) 2 ||Pt/C exhibited a cell voltage of 1.52 V at 10 mA/cm 2 with a noteworthy stability of 100 h at 100 mA/cm 2 for seawater electrolysis, providing huge potential for hydrogen production from seawater.
研究领域:
材料科学
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能源化学
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2022
·Vol. 32
·期 23
·2113068
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IF 19.924
Xufeng Wang,Yajie Song,Xin Jiang,Qingsong Liu,Jidong Dong,Jian Wang,Xin Zhou,Bing Li,Geping Yin,Zaixing Jiang,Jiajun Wang
The complicated interfacial problems of poly(ethylene oxide) (PEO)-based solid polymer electrolytes (SPEs) at high voltages severely hinder its practical applications for high-energy-density all-solid-state lithium batteries (ASSLBs). Herein, the failure mechanisms of ASSLBs with LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM)-PEO are studied. It is found that the ASSLBs after charge generates a sharp drop of 0.62 V at the cut-off voltage of 4.30 V, and induce a high interfacial resistance due to forming an uneven thick cathode electrolyte interface on the NCM surface, as well as cause the destruction of NCM surface structure during storage, leading to serious performance degradation. Constructing the interfacial nanolayer with aromatic polyamide (APA) on the surface of NCM active particles (NCM@APA) can mitigate interfacial side reactions between NCM and SPE. Robust interfacial nanolayers not only effectively protect the crystal structure of NCM but also provide a steady interfacial environment for Li + diffusion kinetics. Accordingly, NCM@APA||SPE||Li ASSLBs exhibit an acceptable voltage drop of 0.27 V after 10 days storage and a substantially improved electrochemical performance with an average coulombic efficiency of 99.1% and capacity retention of 76.7% at 30 mA g −1 after 80 cycles.
研究领域:
材料科学
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电化学
·
能源存储
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高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 6
·期 4
·1496-1503
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IF 8.867
Xiangdong Ma,Xiaoxi Zuo,Jinhua Wu,Xiao Deng,Xin Xiao,Jiansheng Liu,Junmin Nan
A new polyethylene (PE)-supported ultra-thin blended polymer electrolyte based on polyvinylidene fluoride/hydroxyethyl cellulose (PVDF/HEC) was prepared by a simple dipping method for 5 V high voltage lithium-ion batteries (LIBs). The performances of the prepared membranes and the resulting GPEs were investigated by scanning electron microscopy, electrochemical impedance spectroscopy, linear potential sweep voltammetry, and charge–discharge cycling. The effects of the ratio of PVDF to HEC on the performance of the composite separator were further discussed. It was found that PE-supported polymer separators (PVDF : HEC = 3 : 1, by weight) present the best mechanical, thermal and wettability performance. The ionic conductivity of this GPE is 0.78 mS cm−1, which is much higher than that of PE separators (0.39 mS cm−1) at room temperature. The electrochemical stability of this GPE can reach up to 5.25 V (vs. Li/Li+). A LiNi0.5Mn1.5O4 cathode with this GPE exhibits a superior cycling stability and rate performance at room temperature. This suggests that the polyethylene (PE)-supported ultra-thin blended polymer electrolyte can be used for 5 V LIBs due to its good performance, low cost and strong operability.
研究领域:
材料科学
·
电化学
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Zhengkang Peng,Xun Gong,Zijian Zhou,Shiwei Dong,Wei Hu,Hanxiao Liu,Jingying Xu
The removal of naphthalene is important but deficient, so that the available V-W/Ti catalysts (1.0 wt% V 2 O 5 /TiO 2 ) were prepared for its efficient abatement in this work. Especially, influences of different existence status of vanadium species on naphthalene elimination were investigated via changing the pH value of precursor solution. With the increase of precursor solution acidity, more highly polymeric vanadium species were formed on the catalyst surface. The redox capability was enhanced markedly as a consequence of the stronger electron transfer between V/W and Ti that induced more surface active oxygen and V 5+ , whereas the catalytic activity was obviously boosted and almost 90 % conversion of naphthalene was achieved at 293 °C. Moreover, the weaker chemisorption between naphthalene and V-W/Ti catalyst allowed the deeper conversion to CO x . GC–MS manifested that naphthalene seemed to be an organic component that was difficult to be totally degraded. Naphthalene oxidation was in the following pathway of naphthalene → 1,4-naphthoquinone → phthalic anhydride → phthalates → benzene → benzoquinone → maleic anhydride → CO x /H 2 O. The opening of aromatic ring in phthalic anhydride and benzene ring in benzene were proven to be the rate-controlling step based on in-situ DRIFTS results. The key of naphthalene oxidation was the complete degradation of various intermediates.
研究领域:
环境科学
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催化化学
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高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-12
·
IF 14.7
An Hanwen,Li Menglu,Liu Qingsong,Song Yajie,Liu Jiaxuan,Yu Zhihang,Liu Xingjiang,Deng Biao,Wang Jiajun
Polyethylene oxide (PEO) based electrolytes critically govern the security and energy density of solid-state batteries, but typically suffer from poor oxidation resistance at high voltages, which limits the energy density of batteries. Here, we report a Lewis-acid coordinated strategy to significantly improve the cyclic stability of 4.8 V-class PEO-based battery. The introduced Mg 2+ and Al 3+ with strong electron-withdrawing capability weaken the electron density of ether oxygen (EO) chains via chelation in the coordination structure, resulting in a locally limited interaction between the EO chains and the surface of cathodes at high state of charge. The batteries using Lewis-acid coordinated electrolytes and Ni-rich cathodes achieve high voltage stability of 4.8 V over 300 cycles. Further, the realization of industrial-scale electrolyte membranes, and Ah-level pouch cells over 586 Wh kg ‒1 with good cyclic stability, suggests the potential of our strategy in practical applications of all-solid-state batteries.
研究领域:
材料科学
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电化学
·
电池技术
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Hongliang Fu,Wenyao Xue,Shaocong Zhan,Jing Zhao,Yue Lian,Zhifeng Wang,Yongfeng Hu,Huaihao Zhang
Metal active sites are anchored via the coordination effects between V/Co and terephthalic acid. • Co-doping constructs highly active Co-O-V catalytic sites, enhancing reaction activity. • PTA-derived oxygen-containing carbon layer mitigates metal site dissolution, improving stability. Developing highly active and stable catalysts for alkaline electrolytic water oxidation remains a challenge. Here, we prepared highly active, stable and conductive scale like microsheet Co-V 2 O 5 @C through Co-doping and coordination effect between terephthalic acid (PTA) and metal (V/Co). Specifically, Co-doping into V 2 O 5 lattice constructs highly active V-O-Co sites, thus reducing the adsorption energy of oxygen-containing intermediates. Meanwhile, the scale like microsheet Co-V 2 O 5 @C expose abundant active sites, enhancing oxygen evolution efficiency. The coordination effect between PTA and V/Co enables the in-situ formation of carbon layer on V 2 O 5 surface after carbonization, which effectively alleviates the dissolution of active sites and enhances stability. For conductive design, the Co introduction into V 2 O 5 can promote intrinsic conductivity. Moreover, under high-temperature carbonization, PTA evolves into oxygen-containing carbon layer, which boosts Co-V 2 O 5 @C overall conductivity and reaction kinetics. Based on above advantages, Co-V 2 O 5 @C displays good electrochemical performance in oxygen evolution reaction (OER) (low overpotential: 290 mV@10 mA cm −2 ; long stability: 50 h; small charge transfer resistance: 11.7 Ω). Download: Download high-res image (226KB) Download: Download full-size image
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CARBOHYDRATE POLYMERS
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2026
·
IF 13.2
Yongxing Li,Shuang Yang,Haiyu Ji,Wenhao Cao,Jiarong Zou,Zhangliang Zhu,Jinfang Zhang,Mei Li
This study investigated the interaction between three coumaric acid isomers (para-, meta-, and ortho-CA) and corn starch under high-pressure processing. Isomer position critically influenced the multi-scale structure, digestibility, and gut microbiota-modulating function of the resulting complexes. All isomers formed V -type inclusion complexes within the starch helices, with para-CA conferring stronger binding affinity and more compact structures. This structural recombination significantly increased the content of resistant starch (up to 68.43 ± 0.16% with 20% p-CA), while reducing rapidly digestible starch (9.76 ± 0.19%), resulting in the estimated glycemic index decreasing in the order of para < ortho < meta-coumaric acid. During in vitro fecal fermentation, these complexes exhibited slow release of encapsulated polyphenols over 24 h, significantly boosting short-chain fatty acid (especially acetic acid) production, lowering pH value, and selectively regulating gut microbiota (a reduced Firmicutes / Bacteroidetes ratio and an increased abundance of beneficial genera such as Bifidobacterium ). These findings provide a theoretical basis for designing targeted starch-based functional foods for precise glycemic control and gut health promotion.
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DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2023
·
IF 9.8
Linfeng Peng,Hui Li,Wangjun Lin,Tangfu Xiao,Jianqiao Wang,Jinfeng Tang,Nana Wang
Antimony (Sb) pollution in water has attracted extensive attention due to the biotoxicity of Sb. Secondary iron minerals readily sorb heavy metal(loid)s and critically affect their cycling in terrestrial environments. However, compared with synthetic pure iron mineral phases, little is known about the Sb sorption behavior and mechanism on natural secondary iron minerals (nSIMs) composed of various mineral phases. In this study, sorption experiments were conducted to investigate the Sb(V) sorption properties of nSIMs from an acid mine drainage zone and corresponding single-component synthetic secondary mineral phases and to compare their sorption behaviors and mechanisms. Spectroscopic analyses indicated that the nSIMs structurally resembled a hybrid of schwertmannite , jarosite and goethite . Sb(V) sorption on nSIMs, schwertmannite, goethite and jarosite was controlled by chemisorption , with maximum Sb(V) sorption capacities of 217.39, 233.65, 32.17 and 35.61 mg/g, respectively. nSIMs demonstrated an excellent Sb(V) sorption capacity equivalent to or greater than that of the single-component phases. XRD, FTIR and Raman analyses indicated that Sb(V) was immobilized on nSIMs mainly through ion exchange with structural SO 4 2− and complexation interactions with surface Fe O and Fe OH; then, an Fe O Sb surface phase formed during the dissolution and further transformation of schwertmannite and jarosite into goethite. SEM revealed that nSIMs had an advantage in surface microstructure over the single components. These results suggested that despite the similarities in Sb(V) binding mechanism between nSIMs and schwertmannite, nSIMs might be more reactive for Sb(V) sorption since the nSIM components could mutually influence each other and facilitate Sb(V) sorption. This research suggests that nSIMs have potential for Sb(V) removal and helps elucidate the environmental behavior of Sb(V) associated with nSIMs.
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高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Xinqian Li,Bo Li,Yaping Dong,Zhengrong Niu,Dandan Gao,Haitao Feng,Wu Li
How to effectively and environmentally purify chromate solutions containing impurities such as silicon and vanadium, and avoid the generation of Cr(VI)-containing residues are important issues to be solved urgently. Herein, a novel Cr 2 O 3 ∙2.7H 2 O adsorbent with stable three-dimensional nanoflower structure was fabricated using the hydrothermal method , which was successfully implemented in the removal of Si(IV) and V(V) from dichromate system. Batch adsorption experiments revealed that the saturated adsorption capacity of Si(IV) was 140.06 mg/g at pH 9 and 132.98 mg/g V(V) at pH 2. Furthermore, density functional theory (DFT) calculations revealed that V(V) anionic species exhibited high adsorption energies (−990.70 kJ/mol, −697.10 kJ/mol) and small adsorption distances from the β-CrOOH(012) (≈1.89 Å, 1.98 Å), verifying the selective adsorption of Cr 2 O 3 ∙2.7H 2 O on V(V) in Cr(VI)–Si(IV)–V(V) ternary systems . The integrated mechanisms of electrostatic interaction, coordination, polymerization and precipitation for the removal behaviors were proposed via FT-IR, XPS and DFT calculations. In the real Na 2 Cr 2 O 7 complex solutions, the simultaneous removal rates of 88.48% Si(IV) and 80% V(V) were achieved, with optimal adsorption conditions at a pH of 8 and a temperature of 333 K. Furthermore, the desorbed Cr 2 O 3 ∙2.7H 2 O can be effectively converted into high-value nano Cr 2 O 3 , indicating the potential of this new green adsorbent. Therefore, this study not only imparts theoretical and practical insights into the purification of chromate solutions but also contributes to the advancement of cleaner chromium compound production by facilitating the high-value conversion of the adsorbent.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lixia Wang,Jia Huang,Zhiyang Huang,Huatong Li,Tayirjan Taylor Isimjan,Xiulin Yang
Metallic defects can improve catalysts' intrinsic activity by regulating its electronic structure and enhancing conductivity. However, the impact of these defects on the kinetics of the oxygen evolution reaction (OER) has not been extensively studied. Here, a V/P codoped nanoflower-like CoS 2 catalyst with rich Co defects on carbon cloth (V,P-CoS 2 /CC) is fabricated by feasible directional construction. The V,P-CoS 2 /CC validates extraordinary OER performance with overpotentials of 227/300 mV at 10/100 mA cm −2 and robust long-term stability. The enhanced single-electron spin resonance signal and higher lifetime strength indicate an increased number of surface Co defects induced by V/P codoping. Density functional theory (DFT) calculations verify that Co defects induced by V/P codoping of the surface reconstituted V-CoOOH/CoS 2 catalyst can optimize the adsorption/desorption energy of oxygen-containing intermediates to accelerate OER process. Besides, the nanoflower-like morphology with large electrochemical active surface area and good hydrophilicity facilitates electrolyte diffusion/gas emission, thereby synergistically elevating OER performance.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Jun Yang,Taiping Xie,Yuhan Mei,Junyu Chen,Hao Sun,Shan Feng,Yu Zhang,Ying Zhao,Jiankang Wang,Xiaoqing Li,Jiahong He,Houyang Chen
High photocorrosion and poor reaction efficiency of Bi 2 MoO 6 greatly hampered its wide application in wastewater treatment . Herein, V doped Bi 2 MoO 6 was prepared by hydrothermal-subsequent annealing strategy for the refractory sulfapyridine abatement through visible-light-driven photocatalytic activation of peroxymonosulfate (PMS). The degradation results revealed V-doped Bi 2 MoO 6 could achieved 100% sulfapyridine removal after 20 min over Bi 2 MoO 6 /PMS/Vis system, much higher than Bi 2 MoO 6 /PMS/Vis system. Experimental and theoretical calculations indicated that the V doping not only changed the energy band structure of Bi 2 MoO 6 and promoted the separation of photogenerated charges as well as improved the adsorption energy of peroxymonosulfate (PMS), H 2 O and dissolved oxygen on the catalyst surface, but also provided additional PMS activation pathway through V 5+ /V 4+ redox cycles, finally contributed to enhanced sulfapyridine degradation performance in Bi 2 MoO 6 /PMS/Vis system. Our work provides insight into designing highly efficient photocatalyst as a promising PMS activator for environmental application.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Chongyang Zhou,Han Sun,Qian Wang,Jakob B. Grinderslev,Dan Liu,Yigang Yan,Torben R. Jensen
Designing solid electrolytes for all-solid-state lithium batteries that can be compatible with high-voltage cathodes is challenging. Here we report that the nanocomposite Li 2 B 12 H 12 -Al 2 O 3 mechano-chemically treated for 120 h achieves an electrochemical stability window up to ∼ 3.8 V owing to the interfacial interaction via B-O bonds and a high lithium ionic conductivity , σ(Li + ) = 2.73 × 10 −5 S cm −1 at 30 °C. Moreover, this electrolyte shows high compatibility with the lithium metal anode as demonstrated by stable Li plating/stripping for 300 cycles. These electrolyte properties enable the first demonstration of a 3.8 V all-solid-state battery In 1.3 Li 0.3 |Li 2 B 12 H 12 -Al 2 O 3 (25 vol%)|LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) operating for 120 cycles with a rate of 0.2 C and at 30 °C, with a reversible specific capacity of 77.5 mAh g −1 and Coulombic efficiency of 99.8 %. The results demonstrate the potential of hydroborates as electrolyte for all-solid-state lithium batteries.
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高影响因子
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