JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Yue Du,Zhiyi Zhong,Zhixian Shi,Lina Zhou,Song Pan,Xiaonan Xu,Yisi Liu,Dongbin Xiong,Kai Wang
The development of carbon-encapsulated alloy catalysts, through a rational design that integrates highly active Me-N-C sites, is essential for improving the reaction kinetics of both oxygen reduction (ORR) and oxygen evolution reactions (OER). This advancement is pivotal for the progression of efficient rechargeable zinc-air batteries (RZABs). In this study, we investigates a CoNi alloy decorated N-doped carbon nanotube (CoNi-NCNT) electrocatalyst using a dual-ligand strategy. Experimental characterizations and theoretical calculations reveales that the electronic modulation of the 3 d orbitals of the CoNi alloy by the CoN 3 sites enhances electronic conductivity during the ORR/OER process, leading to exceptional bifunctional activity. Electrochemical evaluations demonstrates the outstanding performances of CoNi-NCNT, with a half-wave potential of 0.81 V (versus RHE) for ORR and a low overpotential of 1.52 mV for OER at 10 mA cm −2 . Moreover, the CoNi-NCNT catalyzed Zn-air battery exhibits a remarkable specific capacity of 780 mAh g −1 and an exceptionally extended lifespan exceeding 800 h. This underscores the potential of this alloy strategy in the development of high-performance bifunctional ORR/OER electrocatalysts.
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DOI
高影响因子
RARE METALS
·
2025
·
IF 11
Ma Jingwen,Li Junbin,Tian Ying,Liu Jinhao,Wang Ruiting
Fe–N–C single-atom catalysts are considered among the most promising non-precious metal-based catalysts for oxygen reduction reaction (ORR), but issues such as low utilization of active sites and the easy aggregation of single atoms severely hinder their application in fuel cells and metal–air batteries. Herein, a single-atom Fe-embedded hierarchical porous hollow carbon fiber catalyst (Fe SAC/HCNF) is reported for ORR. The hollow channels and the porous structure of the fibers facilitate the exposure of single-atom active sites, and offer multidimensional mass transfer pathways to promote the transport of reactants, thus significantly enhancing catalytic performance. Additionally, the abundant micropores exert spatial confinement, which is beneficial for preventing the aggregation of single atoms. Leveraging its unique structural advantages, the Fe SAC/HCNF catalyst demonstrates outstanding ORR activity with low metal loading, boasting a high half-wave potential of 0.905 V, a substantial double-layer capacitance ( C dl ) of 41.1 mF cm −2 , and a notable kinetic current density of 45.2 mA cm −2 in alkaline media. Furthermore, the liquid Zn–air battery (ZAB) using Fe SAC/HCNF catalyst as the air cathode exhibits excellent battery performance and long-term cycling durability nearly 600 h. And the flexible quasi-solid-state ZAB can be stably cycled in various flat/bent states, which is promising for applications in flexible electronic devices. Graphical
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 45
·20762-20769
·
IF 3.3
Yunxiao Zhang,Wenhua Xiao,Jingqiang Zhang,Tiantian Hu,Shanxia Hu,Minjie Zhou,Zhaohui Hou,Yu Liu,Binhong He
The currently leading oxygen reduction reaction (ORR) catalysts are non-precious metal electrocatalysts. However, porous structure engineering and accessibility of Fe–N–C sites still remain a huge challenge. Here, we developed hierarchically porous Fe–N–C catalysts for cathodes of Zn–air batteries using a gas diffusion strategy, which has dense active Fe–Nx moieties. The Fe-NCNF-120 catalyst provided high kinetic current density and mass activity towards the ORR, as well as a more positive initial potential and half-wave potential (Eonset = 1.00 V, E1/2 = 0.90 V). According to experiments, the outstanding ORR activity can be attributed to the organized micro- and mesoporous structure, enhanced intrinsic activity of dense and accessible active sites Fe–Nx, and the facilitated mass and electron transport by 3D interconnected pores. As the cathode for Zn–air batteries, Fe-NCNF-120 demonstrated high power density, a high open-circuit voltage, and excellent stability. The combination of inherent activity with dense and accessible spots in this work opens up new possibilities for the design and synthesis of effective electrocatalysts for energy storage and conversion.
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DOI
高影响因子
Desalination and Water Treatment
·
2025
·
IF 1
Jingyi Chen,Xiaoxue Zhang,Junsheng Liu,Shan Jiang,Chunyu Ji,Jie Zhang
A series of novel polyethyleneimine/graphene oxide (PEI@GO) membranes were prepared and their adsorptions for heavy metal ions in mixed solutions were examined. It was found that they had good sorption performances for Pb(II), Cu(II), and Zn(II) in water. Their adsorptions for Pb(II), Cu(II), and Zn(II) obeyed the first-order kinetic modeling, dominating a physical style. Meanwhile, the fitting of intra-particle diffusion showed that Pb(II) and Cu(II) did not conform to the intra-particle diffusion stage, whereas Zn(II) did. Moreover, it was confirmed that the sorption of PEI@GO membranes for Pb(II), Cu(II), and Zn(II) followed the Langmuir isotherm modeling, and the maximal values could reach 79.6 mg/g for Pb(II), 35.01 mg/g for Cu(II), and 32.27 mg/g for Zn(II), respectively. The calculation of thermodynamic parameters indicated that these adsorptions were spontaneous and endothermic processes. Further, the investigation of PEI@GO membranes for Pb(II), Cu(II), and Zn(II) in ternary mixed systems evidenced that Zn(II) can be preferentially removed via step-by-step mode. In addition, the exploration of sorption mechanism using XPS and FTIR analyses showed that ligand interactions were involved in the adsorptive removal of Pb(II), Cu(II), and Zn(II). This study discloses that PEI@GO membranes are promising adsorbents for the removal of heavy metal ions from water.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Xuemei Meng,Huan Long,Xiaohui Zhou,Wu Xia,Xiangsi Wu,Xianwen Wu,Yunlong Liu,Xianming Wu
Non-precious metal catalysts with efficient bifunctional catalytic performance are urgently needed in rechargeable Zn-air battery. Herein, a 3D N-doped double-walled hollow carbon spheres/nanotube CoNi alloy hybrid (CoNi-NC/DLHCs) was rationally constructed by the optimized Stöber method combined with the epitaxial attachment MOF strategy. Take advantage of effectively utilized the active site of 3D open architecture, accelerated intermediate transport, and the large specific surface area ( S BET ), CoNi alloys exerted maximum oxygen reduction reaction (ORR) activity and oxygen evolution reaction (OER) activity. The as-prepared CoNi-NC/DLHCs catalyst manifests a higher half-wave potential of 0.85 V and Tafel slop of 88 mV dec -1 for ORR, as well as satisfied OER activity with Tafel slope of 92 mV dec -1 and overpotential at 10 mA cm -2 of 275 mV. A liquid zinc-air battery equips with CoNi-NC/DLHCs achieved a satisfying open circuit potential (OCP) of 1.51 V, a maximum peak power density of 183.4 mW cm -2 , and a cycle endurance stability of more than 700 h. This research highlights good prospects in designing oxygen electrocatalysts catalysts in the metal-air battery field.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qingsong Ji,Zihao Wang,Xushen Tan,Lu Sun,Yue Sun,Haoyang Du,Shuang Li,Tao Zhang,Riqing Chen,Fuxiang Chu,Jingya Nan,Chunpeng Wang
Aqueous zinc ion batteries (AZIBs) utilizing hydrogel electrolytes have emerged as promising sustainable solutions for flexible energy storages owing to their intrinsic safety and mechanical stability. However, the inherent poor toughness, low Zn 2+ transference number, and lacking electron field regulation capability in conventional hydrogel electrolytes exacerbate uncontrolled Zn dendrite growth and side reactions, posing a substantial challenge to interfacial stability between the Zn anode and the hydrogel electrolyte. To address this, here we present a novel biphasic hydrogel electrolyte capable of both multi-scale stress deconcentration and dual-field regulation via polymerization followed by salting-out and coordination strategy. The well-designed hydrogel electrolyte demonstrates high toughness of 17.5 kJ m −2 , an ionic conductivity of 60.6 mS cm −1 and a Zn 2+ transference number of 0.753, collectively achieving highly reversible Zn plating/stripping and exceptional interfacial stability. Consequently, the Zn||NaV 3 O 8 ·1.5H 2 O (NVO) full cells equipped with this hydrogel electrolyte show remarkable electrochemical performance, including high capacity (375.4 mAh g −1 at 0.5 A g −1 ), outstanding rate capability (188.9 mAh g −1 at 8 A g −1 ) and long-term cycling stability (91.6 % capacity retention after 3000 cycles), with sustained performance under harsh conditions such as high temperature, high humidity, and low temperatures (−30 °C). Furthermore, the assembled flexible pouch cells demonstrate exceptional mechanical and environmental adaptability, reliably powering a circular lamp even under severe bending at both room and −30 °C. This work provides fundamental insights into Zn anodic chemistry in multifunctional hydrogel electrolyte and offers practical guidelines for constructing advanced zinc-based energy storage devices.
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Yimei Jiao,Lanlan Fan,Lei Cao,Yuan Gao,Lei Yi,Zhenhuan Li,Matsuyama Hideto,Mengyang Hu
Aqueous zinc-ion batteries (AZIBs) are expected to be used for large-scale energy storage due to their low cost and safety, but uncontrolled Zn deposition can lead to dendrite growth. To solve this problem, we designed a cellulose-based fiber-reinforced separator (PCH-x@CF) to achieve a gradient pore structure by non-solvent-induced phase separation (NIPS) method, thereby improving the electrolyte permeation, ion transport, and ionic conductivity of the separator. The separator regulates Zn deposition through both physical and chemical mechanisms, inhibiting hydrogen evolution (HER) and dendrite formation. The key to its performance is the addition of halloysite nanotubes (HNTs), which improve hydrophilicity, thermal stability (326.6 °C), and Zn 2+ flux uniformity. Molecular dynamics (MD) simulations show that the negatively charged Si–O - group in HNTs can replace the solvated H 2 O in the Zn 2+ coordination shell, thereby reducing the Zn 2+ desolvation energy barrier. In addition, the functional groups (-CN, –OH) in the PCH-x@CF matrix form Zn–O and Zn–N bonds, further promoting uniform Zn 2+ transport. In electrochemical tests, the PCH-12@CF separator was stable for 2500 h at 0.1 mA cm −2 and maintained up to 87.5 % capacity after 2000 cycles at 1.0 A g −1 . This work provides an advanced design strategy for high-performance AZIBs separators by combining gradient pore structures with target chemical functional groups.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Menghan Sun,Lishan Wei,Jinsong Peng,Gongyuan Zhao,Dengfeng Yu,Chunxia Chen
Aqueous Zn–I 2 batteries have garnered significant attention due to their high abundance and safety. However, the sluggish iodine redox kinetics and undesirable shuttle effect severely hindered their wider application. Herein, dual doping of B and N provides an effective strategy to modulates chemical properties and electron distributions of carbon hosts, resulting in high performance of Zn–I 2 batteries. The local electron redistribution enhances electron density at the Fermi level of the carbon host, thereby improving intrinsic conductivity. Additionally, combining experiments and DFT calculations reveal that N B center sites are benefited in suppressing shuttle effects, strengthened interactions with iodide species, and facilitated catalytic conversion kinetics. Notably, Zn–I 2 batteries fabricated with B and N co-doped porous carbon (BNAC) achieve an outstanding capacity (231.7 mAh g −1 at 0.1 A g −1 ) and excellent cycling stability (capacitance retention of 98 % after 4,500 cycles). This study not only provides valuable insights into the design of advanced carbon materials but also clarifies the active sites in B/N co-doped carbon materials, offering guidance for the rational design of carbon-based electrode materials for Zn–I 2 batteries.
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DOI
PubMed
高影响因子
IONICS
·
2025
·
IF 2.6
Li Mingzhao,Liu Xinyu,Shi Chonghua,Wang Jing,Yao Shaowei
Bimetallic zeolitic imidazolate framework materials (Zn/Co-ZIFs) represent a notable class within the field of metal–organic frameworks (MOFs). These materials are characterized by their advantageous properties typical of MOFs, including a high specific surface area and tunable pore sizes, in addition to exhibiting the structural stability that is characteristic of zeolites. In contrast, although tin-based materials demonstrate a high theoretical specific capacity, they experience significant volume changes during the charge and discharge cycles of batteries, leading to materal degradation and reduced cycling stability. In this study, Sn doping was successfully achieved in Zn/Co-NPC (N-doped porous carbon) by thermally treating Zn/Co-ZIFs at 700℃ through an impregnation method. This doping enhanced the sodium storage capacity of Zn/Co-NPC and improved its electrochemical performance. Experimental data indicate that the Sn/Zn/Co-NPC composite has a specific surface area of 332.80 m 2 g −1 and an average pore diameter of 7.30 nm. When this composite is used as the anode material in sodium-ion batteries, it demonstrates outstanding performance: after 100 cycles, its reversible specific capacity reaches 344.20 mAh g −1 (at a current density of 100 mA g −1 ) and exhibits excellent rate capability. Consequently, this study provides substantial insight into the prospective advancement of structurally stable and high-capacity anode materials for sodium-ion batteries.
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高影响因子
SURFACE AND INTERFACE ANALYSIS
·
2014
·Vol. 47
·期 3
·403-412
·
IF 1.393
S. Fashu,C. D. Gu,J. L. Zhang,W. Q. Bai,X. L. Wang,J. P. Tu
With the aim of obtaining high corrosion resistant Zn–Sn alloy coatings from an ionic liquid, the effects of electrodeposition potential and electrolyte composition on the electrodeposition behavior, film composition, morphology and corrosion performance were investigated. Cyclic voltammograms indicate that Zn and Sn were co-deposited at distinct reduction potentials as pure Zn and Sn elements. In addition, the phase composition analysis also showed that the obtained Zn–Sn alloy deposits (8 wt.%–45 wt.% Zn) consist of a two-phase mechanical mixture of small aggregates of Zn and Sn metals. The Zn content of the alloy significantly increases as the electrodeposition potential and electrolyte Zn (II)/Sn (II) ratio increase. The corrosion performance study of the obtained Zn–Sn coatings showed that they have a passivation behavior and their corrosion resistance increases as the alloy-Sn content increases. To improve their morphological properties, ethylene diamine tetraacetic acid additive was introduced into the electrolyte and greatly improved the morphology and corrosion resistance of the deposits. For the first time, it was shown that high corrosion resistance Zn–Sn coatings can be obtained from ionic liquids. Copyright © 2014 John Wiley & Sons, Ltd.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.9
Haifeng Jiang,Jiahao Qi,Jian Xing,Hanwen Zhou,Zheng Cao
The co‑catalytic pyrolysis of waste polyethylene terephthalate (PET) with urea under an Ar atmosphere offers a sustainable route to prepare high‑value aromatic nitriles from plastic‑waste recycling. However, low aromatic nitrile yields greatly hinder the scaled-up deployment and practical use of this PET pyrolysis strategy. This work uses transition metal (Ni, Cu, Mn)-doped Zn-Co spinel catalysts to regulate the product distribution during the catalytic pyrolysis of PET-urea mixtures to produce aromatic nitriles. The results reveal that the nickel-doping spinel catalyst exhibits the optimal promotion effect. After adding 10 wt% catalyst with a total mass of PET-urea mixture, the normalized GC-MS peak-area percentages of nitrogen-containing compounds and nitriles in liquid condensate reach 94.6% and 52.3% at 550 ℃, respectively. Compared with the non-catalyst system, the relative contents of nitrogen-containing compounds and nitriles increased by 7.95% and 30.39%, respectively. Among all aromatic nitriles, 1,4-benzenedicarbonitrile shows a relative proportion of 22.7%. Further results indicate that the Ni-doped spinel catalyst facilitates the formation of C N-containing intermediates during the PET-urea co-pyrolysis process. This work presents a catalytic method to raise the relative content of aromatic nitriles in condensed liquid from the argon‑atmosphere PET‑urea catalytic co‑pyrolysis.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Ge Chang,Yisu Hao,Cong Huang,Yujie Yang,Yang Qian,Dejian Zhu,Zhixiao Liu,Zheng Liu,Qunli Tang,Xiaohua Chen,Aiping Hu
Aqueous Zn–S batteries (AZSBs) have garnered increasing attention in the energy storage field owing to their high capacity, energy density , and cost effectiveness. Nevertheless, sulfur (S) cathodes face challenges, primarily stemming from sluggish reaction kinetics and the formation of an irreversible byproduct (SO 4 2− ) during the charge, hindering the progress of AZSBs. Herein, Te–S bonds within S-based cathodes were introduced to enhance electron and ion transport and facilitate the conversion reaction from zinc sulfide (ZnS) to S. This was achieved by constructing heteroatomic TeS-x@Ketjen black composite cathodes (HM-TeS-x@KB, where x = 36, 9, and 4). The HM-TeS-9@KB electrode exhibits long-term cycling stability, maintaining a capacity decay rate of 0.1 % per cycle over 450 cycles at a current density of 10 A g −1 . Crucially, through a combination of experimental data analysis and theoretical calculations, the impact mechanism of Te on the charge and discharge of S active materials within the HM-TeS-9@KB cathode in AZSBs was investigated. The presence of Te–S bonds boost the intrinsic conductivity and wettability of the HM-TeS-9@KB cathode. Furthermore, during the charge, the interaction of preferentially oxidized Te with S atoms within ZnS promotes the oxidation reaction from ZnS to S and suppresses the irreversible side reaction between ZnS and H 2 O. These findings indicate that the heteroatomization of chalcogen S molecules represents a promising approach for enhancing the electrochemical performance of S cathodes in AZSBs.
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高影响因子
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