Surfaces and Interfaces
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2025
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IF 6.3
Hang Luo,Shenghui Guo,Xiaolei Ye,Li Yang,Ming Hou,Yunchuan Li,Zhiguang Hua
Designing the composition and structure of bi-metal hybrids is an available way to regulating the electromagnetic properties. Metal-organic framework (MOFs) materials have attracted profuse attention due to their low density and adjustable structure. Among all MOFs, zeolitic imidazolate framework (ZIFs) is an excellent precursor with diverse morphologies and various structures. This provides great structural designability. In this work, a Zn/Co bi-metal hybrid based on ZIF-8 and ZIF-67 templates was constructed via a novel approach. Solvent environment changing led to changes in morphology and structure. Thus the derivatives exhibited interesting electromagnetic wave (EMW) absorbing properties. In methanol-water mixing ambient solvents of different volume ratio, the Zn@Co-ZIFs present completely different morphologies and topological structures. The corresponding pyrolysis products ZnO/NC@Co/NCs (ZCNCs) inherited the morphologies of precursors and displayed great difference in EMW absorbing properties as a result of variant defects. The ZCNC originated from mixture where methanol volume ratio counted 75% exhibited the best absorption performance: the minimum reflection loss (RL min ) was -48.29 dB, and the effective absorption bandwidth (EAB) was 4.51 GHz (from 10.90 GHz ∼ 15.41 GHz). Besides, ZCNC originated from mixture where methanol occupied 25% of total volume displayed dual-band absorption at 3.6 mm. This work provides a novel perspective for the design of efficient EMW absorbing materials.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Yanmei Cui,Yerong Huang,Jie Mi,Jiancheng Wang,Mengmeng Wu
It is unclear about H 2 O-induced effects on H 2 S-absoprion/COS-release behavior during high-temperature coal gas cleaning with Zn-based sorbents. This work aims at clarifying the aforementioned effect. The results reveal that the presence of 5–10 vol% H 2 O reduces the sulfur capacity of sorbents by 41–55%, while also decreasing the amount of released COS before H 2 S-breakthrough ( A-COS BT ) by 97%–99%. For wet coal gas desulfurization, the CO-H 2 S reaction accounts for nearly all of the COS released, while the contribution from the CO 2 -H 2 S reaction is negligible. Both Ni- and Ce-doping decrease A-COS BT of sorbents by 85%–89% and 92%–94%, respectively. Moreover, Ni-doping enhances the H 2 S-uptake capacity of sorbents by 32%–103%, which is mainly ascribed to the weakening of Zn-O bond. The performance of the Ni-Ce co-doped desulfurizer lies between those of the sorbents doped solely with Ni and Ce, respectively. Furthermore, co-doped sorbents could maintain 82%–92% of initial sulfur capacity and strong ability of inhibiting COS-formation during multiple sulfidation-regeneration cycles. It provides new insights for H 2 O-induced effects on H 2 S-absorption/COS-release behavior during hot coal gas cleaning.
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ACS Sustainable Chemistry & Engineering
·
2026
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IF 7.3
Wenjun Zhang,Zijiang Zhao,Yonggang Gang,Xiaosong An,Liboting Gao,Siyi Bao,Xuping Ren,Jun Wang,Jianhua Yan,Hao Zhang
Cu/ZnO/Al2O3 (CZA) catalyst remains the benchmark for methanol synthesis but suffers from active-site sintering and insufficient CO2 activation. In this study, we proposed a dual strategy to enhance and regulate the active sites of CZA: hydrothermal treatment induces Cu–Zn coordination to create high-density Cu–ZnO1–x interfaces that promote CO2 conversion, while subsequent La doping regulates Cu0/Cu+ species to favor methanol selectivity. As a result, the maximum space-time yield (STY) of methanol over the designed CZA&5%La-LRCP (prepared by the ligand-regulated coprecipitation method) catalyst improved significantly from 283.0 gMeOH·kgcat–1·h–1 for the conventional coprecipitation-prepared CZA to 400.4 gMeOH·kgcat–1·h–1 under the tested conditions, surpassing most literature reports on La-doped Cu-based catalysts. Comprehensive characterizations and kinetic studies revealed that high-density Cu–ZnO1–x interfaces enhance CO2 adsorption and activation, while uniformly distributed electron-enriched Cu0/Cu+ species promote H2 dissociation and facilitate formate formation and transformation, together establishing an efficient pathway for CO2 activation and hydrogenation. This study demonstrates a promising strategy for the rational design of CO2hydrogenation catalysts through the synergistic modulation of interfacial structure and electronic properties.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
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IF 9.6
Zirui Ma,Rongyao Qiu,Yiran Luo,Tong Liu,Haonan Chen,Mengwen Fan,Yi Wan,Lin Lv,Zhishan Li,Houzhao Wan,Hao Wang
Developing non-precious-metal electrocatalysts with concurrent high activity and durability remains a grand challenge for the alkaline oxygen evolution reaction (OER). Herein, we rationally design and develop a cerium and boron co-doped ultrathin copper–cobalt carbonate hydroxide nanosheet (B-Ce-CuCo) electrocatalyst. The introduced Ce and B achieve a rare collaboration between the adsorbate evolution mechanism (AEM) and lattice oxygen oxidation mechanism (LOM) by optimizing oxygen-containing intermediate adsorption, increasing stabilized oxygen vacancies, and activating lattice oxygen. The optimized catalyst exhibits an ultralow overpotential of 208 mV at 10 mA cm −2 with a Tafel slope of 42.77 mV dec −1 and exceptional stability over 1000 h at 50 mA cm −2 . Theoretical calculations reveal that Ce modulates the electronic structure by shifting unoccupied Co/O states toward the Fermi level, optimizing the adsoprtion of oxygenated intermediate and boosting the AEM pathway. Both Ce and B promote oxygen vacancy generation, while B stabilizes these vacancies to activate lattice oxygen, enabling extensive LOM participation via Co(IV) O and *O O intermediates. 18 O-labeled differential electrochemical mass spectrometry (DEMS) directly identifies the coexistence of AEM and LOM pathways. This synergy reduces the AEM and LOM energy barriers to 0.39 eV and 0.58 eV, respectively, establishing a fundamentally new paradigm for designing high-performance electrocatalysts via dual-element doping. Download: Download high-res image (154KB) Download: Download full-size image
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PubMed
高影响因子
Green Chemical Engineering
·
2026
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IF 11.9
Kexin Wei,Haoyang Yu,Fan Yang,Yang Sun,Shijia Li,Jiabao Guo,Yongfeng Li
To advance the development of high-performance rechargeable zinc-air batteries (ZABs) with efficient oxygen electrochemistry, significant progress is needed in research on Fe-based nanoparticle/single-atom bifunctional oxygen electrocatalysts. Nevertheless, the structure-activity relationship and synergy mechanism of Fe-based nnoparticle/single-atom hybrid catalysts are not well-known. Herein, Self-supported carbon nanofiber electrocatalysts with in-situ synthesized FeS, Fe 2 P, or Fe 3 C nanoparticles and atomically dispersed Fe-N x sites were prepared in this work by the coaxial electrospinning method. X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) simulations showed that there was a significant change in charge distribution, an increase in the adsorption of *O intermediates, and a decrease in the *OH desorption energy barrier at the FeS/FeSA interface. It can be concluded that FeS/FeSA has better electronic and adsorption properties than Fe 2 P/FeSA and Fe 3 C/FeSA. Therefore, FeS/FeSA has an oxygen reduction reaction (ORR) half-wave potential of 0.89 V and an oxygen evolution reaction (OER) overpotential of 240 mV at 10 mA/cm 2 , which is relatively high compared with that of Fe 2 P/FeSA (0.79 V, 260 mV) and Fe 3 C/FeSA (0.77 V, 250 mV), and it has a small potential gap (Δ E ) of 0.58 V. FeS/FeSA can be used as the air cathode in liquid ZABs; it has a high peak power density of 116 mW/cm 2 and is stable for more than 150 hours. The above results have laid the foundation for the construction of high-performance air cathode catalysts by means of effective coupling of atomic nanoparticles and shown the direction for developing high-efficiency, long-life rechargeable zinc-air batteries.
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Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 26
·20610-20619
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IF 9.5
Yutong Xia,Gege Wang,Jing Wu,Xiaowei Chi,Yu Liu
Aqueous zinc metal batteries (AZMBs) have garnered significant attention owing to the inherent safety of aqueous electrolytes and the zinc anode's high theoretical specific capacity (820 mA h g−1). However, interfacial instability arising from rampant zinc dendrite growth and parasitic side reactions at the electrolyte/anode interface critically hinders practical implementation. Herein, we report an in situ solid electrolyte interphase (SEI) engineering strategy via frustrated Lewis pair (FLP)-mediated polymerization of 2-acrylamido-2-methylpropane sulfonic acid (AMPS), where FLP catalysis is achieved through synergistic interactions between metallic zinc and Zn2+ cations at the electrolyte/anode interface. In contrast to conventional electrolyte additives that rely on physical adsorption or chemical passivation, the polymerized AMPS (PAMPS) establishes a dual-functional interface: (i) rapid Zn2+ ion transport channels through sulfonic acid groups, and (ii) robust chemical bonding with zinc via acrylamide moieties. This unique architecture enables simultaneous regulation of Zn2+ flux homogeneity and interfacial stabilization. Accordingly, Zn‖Zn symmetric cells with the AMPS-containing electrolyte show stable cycling for 6500 h at 1 mA cm−2. Notably, under extreme conditions (10 mA cm−2, 10 mA h cm−2), the PAMPS-enabled anode achieves a coulombic efficiency of 99.7% and an unprecedented cumulative areal capacity of 12 A h cm−2—a fourfold improvement over state-of-the-art benchmarks. Additionally, the MnO2‖Zn full cells with the AMPS-containing electrolyte exhibit a high specific capacity of 300 mA h g−1 at 500 mA g−1 and long cycling stability of 10 000 cycles at 1.58 A g−1. This work offers a facile, economical and effective approach for designing a high-performance aqueous zinc metal battery for practical applications.
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CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Mengxia Shen,Jiale Qi,Kun Gao,Chao Duan,Jun Liu,Qingqing Liu,Hao Yang,Yonghao Ni
Fe-N x C single-atom catalysts have been immensely explored as the most promising ORR catalysts for replacing noble metals. Nevertheless, how to precisely introduce Fe atoms to optimize their spatial distribution and coordination environment in carbonaceous matrices while constructing the hierarchical porous structures to facilitate the mass transport process and ensure the accessibility of Fe-N x sites remain significant challenges. Here, we propose a strategy to prepare porous N -doped carbon aerogels anchored with single atomic Fe sites (Fe-SA@PNC) as highly efficient ORR electrocatalysts via directional freeze-casting and chemical vapor deposition. Fe-SA@PNC exhibit remarkable ORR activity and stability due to the highly stable honeycomb morphology and hierarchical pore structure, as well as the atomically dispersed Fe-N 4 sites in the carbon support. Furthermore, the practical application of Fe-SA@PNC catalysts as cathode materials in Zn-air batteries was demonstrated with encouraging performance. This study provides a promising approach for constructing high-efficiency ORR single-atom catalysts.
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高影响因子
FOOD CHEMISTRY
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2022
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IF 9.231
Peige Qin,Dengke Chen,Dan Li,Mengyuan Li,Mengyao Mu,Yanmei Gao,Shiping Zhu,Minghua Lu
Amino-modified Zn/Fe bimetallic metal–organic frameworks (NH 2 -Zn/Fe-MIL-88) were synthesized using a one-step solvothermal method with FeCl 3 ·6H 2 O and Zn(NO 3 ) 2 ·6H 2 O as metal salts and 2-aminoterephthalic acid as organic ligand. The morphology of NH 2 -Zn/Fe-MIL-88 can be regulated from octahedral-like to spindle-like with changing molar ratios of metal salts. Using NH 2 -Zn/Fe-MIL-88 as sorbent, a dispersive solid-phase extraction with putting sorbents into sample solution to extract targets was developed to preconcentrate phytohormones in vegetables. To study the extraction efficiency, a series of NH 2 -Zn/Fe-MIL-88s with varying molar ratios of metal salts were prepared. The results indicated that NH 2 -Zn/Fe-MIL-88(1) presented the highest extraction efficiency (82.6 %–98.1 %) to phytohormones among all prepared NH 2 -Zn/Fe-MIL-88(x). The limits of detection were calculated at 0.07–0.15 ng/mL. The adsorption isotherms and kinetic parameters of NH 2 -Zn/Fe-MIL-88 for phytohormones were conformed to Langmuir and pseudo-second-order models. The NH 2 -Zn/Fe-MIL-88 as sorbent combined with HPLC was applied to detect phytohormones in cucumber and tomato samples.
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高影响因子
CHINESE JOURNAL OF CHEMISTRY
·
2022
·Vol. 40
·期 23
·2763-2772
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IF 5.56
Mingxin Zhang,Hui Peng,Kanjun Sun,Xuan Xie,Xiaofei Lei,Sitong Liu,Guofu Ma,Ziqiang Lei
Comprehensive Summary Rational design of robust non-noble electrocatalysts with numerous oxygen vacancies and highly reactive activity for oxygen reduction reaction (ORR) towards Zn-air batteries is extremely paramount yet challenging. Herein, a novel CeO 2 C 2 nanoparticles self-embedded in Fe, N co-doped carbon nanofibers (CeO 2 C 2 @Fe-N-C) heterostructure catalyst has been prepared by the in-site dual template assisted electrospinning technique and subsequent high temperature pyrolysis strategy. Thanks to the CeO 2 C 2 with oxygen-enriched vacancies and versatile Fe-N-C with rich reactive species and high conductivity, CeO 2 C 2 @Fe-N-C catalyst exhibits outstanding catalytic performance in the ORR process, and shows excellent methanol tolerance and cycle stability. In addition, CeO 2 C 2 @Fe-N-C delivers a nearly four-electron transfer process in the process of oxygen reduction catalysis, providing a fast-electrochemical kinetic rate, which makes it an efficient air cathode for the Zn-air battery. Importantly, the Zn-air battery fabricated with CeO 2 C 2 @Fe-N-C cathode achieves superior performance including large open-circuit voltage (1.5 V) and high specific capacity (780 mAh·g –1 at 10 mA·cm –2 ) together with superior reversibility and cycling stability, outperforming commercial Pt/C catalyst. The present work introduces a new strategy to design and develop highly active non-noble catalysts and highlights the synergy from heterostructure in oxygen electrocatalysis for advanced Zn-air batteries.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
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IF 7.392
Zongnan Li,Xiufang Lin,Wenhao Xi,Manrong Shen,Bifen Gao,Yilin Chen,Yun Zheng,Bizhou Lin
Developing nonprecious-metal carbon-based bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is greatly significant for practical applications of rechargeable Zn-air batteries. Herein, rod-like S-doped g-C 3 N 4 has been used as the nitrogen-rich precursor to synthesize an excellent oxygen electrocatalyst Co@bCNTs by a facile two-step route including cobalt-infiltration and subsequent pyrolysis. In Co@bCNTs, Co nanoparticles are encapsulated within N, S-doped bamboo-like carbon nanotubes (bCNTs), which further are tangled with the doped graphene and hybridized with a small amount of amorphous CoS x . Benefiting from its effective N dopant, highly graphitized carbon and the synergistic effects of its components with different functionalities, the as-prepared catalyst has superior bifunctional ORR/OER electrocatalytic activities with a small potential difference of 0.72 V and outstanding durability. Its assembled liquid and all-solid-state flexible batteries show excellent performance with peak power densities up to 190.3 and 106.2 mW cm −2 , respectively. This work provides a new dimension to design and prepare high-performance bifunctional oxygen eletrocatalysts using nitrogen-rich polymers for developing rechargeable zinc-air batteries.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2023
·Vol. 47
·期 42
·19775-19781
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IF 3.3
Xueyan Wu,Yang Yang,Yan Lv,Xiuli Zhang,Jiaxin Li,Jixi Guo
The development of efficient and stable catalysts for the oxygen reduction reaction (ORR) is crucial to enable practical large-scale application of Zn–air batteries (ZABs). This study investigates the utilization of N, S co-doped coal-based activated carbon materials, synthesized through facile reactions, which exhibit high specific surface area and abundant active sites. The results of material characterization and experiments indicate that co-doping with N and S can effectively modify the charge distribution of coal-based activated carbon materials, increase the active sites, and ultimately enhance their performance in the oxygen reduction reaction (ORR). The N, S-AC catalyst exhibits remarkable catalytic activity for the ORR in alkaline electrolytes, demonstrating a high half-wave potential (E1/2 = 0.79 V), ultimate current density (jL = 6.35 mA cm−2) and stability, as well as considerable tolerance to methanol. The N, S-AC-based ZAB also demonstrates exceptional performance, achieving a maximum power density of 142 mW cm−2 and a specific capacity of 804 mA h gZn−1. This study not only simplifies the preparation process for heteroatom-doped coal-based activated carbon catalysts but also explores practical applications for ZABs.
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高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Zelai Cheng,Liming Xu,Xi Wang,Xiaohui Wu,Fangyi Huang,Yulan Jing,Hua Su
Gillespite-type SrCu 0.95 B 0.05 (B 2+ :Cu,Co,Mn,Ni,Mg,Zn)Si 4 O 10 (SCBS) ceramics were prepared by high-temperature solid-state method. Their microwave dielectric properties and crystal structure evolution were studied by P–V-L theory, bond valence model, and X-ray photoelectron spectroscopy. Varying B 2+ ion changed ionic polarizability and bond ionicity, causing dielectric constant ε r of SCBS to change. The change in quality factor Q × f was explained by lattice energy, oxidation state of Cu, and internal strain/fluctuation. The temperature coefficient of resonator frequency τ f was regulated by B–O bond length and valence. The optimal microwave dielectric properties were exhibited by SrCu 0.95 Mn 0.05 Si 4 O 10 after sintering at 1050 °C: ε r ∼5.8 ± 0.03, Q × f ∼65,589 ± 2611 GHz (@15.8 GHz), and τ f ∼ -50 ± 4 ppm/°C. These materials show great potential application prospects for 5G/6G wireless communication.
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