ACTA PHYSICO-CHIMICA SINICA
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2026
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IF 13.5
Lulu Zuo,Di Li,Xinwei Li,Zhiyong Tang
The electrochemical nitrate reduction reaction (NO 3 RR) represents an attractive and sustainable strategy for simultaneously addressing nitrate contamination and producing value-added ammonia under ambient conditions. Compared with the energy- and carbon-intensive Haber-Bosch process, NO 3 RR offers a decentralized pathway for green ammonia synthesis powered by renewable electricity. However, achieving high ammonia selectivity remains challenging because nitrate-to-ammonia conversion involves a multistep proton-coupled electron transfer cascade, in which the initial two-electron reduction of nitrate to nitrite and the subsequent hydrogenation of nitrite-derived intermediates must proceed in a kinetically coordinated manner. In practice, this cascade is often hindered by reactivity mismatch between the upstream and downstream steps, resulting in nitrite accumulation, incomplete hydrogenation of NO x intermediates, and intensified competition from the hydrogen evolution reaction. Despite the conceptual promise of tandem catalysis, a practical framework for quantifying and optimizing such kinetic matching remains insufficiently developed. Here, we report a layered double hydroxide-derived Cu-Zn dual-site electrocatalyst in which the Cu/Zn ratio is used as a compositional lever to regulate cascade coordination during NO 3 RR in neutral electrolyte. Among the investigated compositions, Cu 1.5 Zn 1.5 Al-R exhibits the optimal balance between nitrate activation and subsequent hydrogenation, delivering a peak Faradaic efficiency of 95% for ammonia at −0.7 V vs. RHE, together with a high ammonia yield of 1526.0 mmol·g −1 ·h −1 . Time-dependent product analysis further shows that this optimal catalyst displays suppressed nitrite accumulation together with rapid ammonia formation, indicating an effective kinetic coupling between the consecutive reduction steps. Mechanistic studies based on online differential electrochemical mass spectrometry and in situ infrared spectroscopy reveal that the reaction mainly proceeds through a *NOH-mediated pathway. The results suggest that Cu-rich motifs are responsible for promoting nitrate adsorption and the initial two-electron reduction step, while Zn-associated motifs regulate the local hydrogenation microenvironment and facilitate the further hydrogenation of nitrite-derived intermediates near adjacent Cu sites. As a result, the Cu/Zn ratio serves as a key compositional parameter to balance the tandem reaction kinetics and improve ammonia selectivity. This work demonstrates that ratio-programmed Cu-Zn tandem catalysis is an effective strategy to enhance nitrate-to-ammonia conversion by kinetically matching the sequential elementary steps. The present study not only provides a viable catalyst design principle for selective NO 3 RR, but also offers useful insight into the regulation of multistep electrocatalytic reactions through compositional engineering.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Jingtao Chen,Siyuan Shao,Xiaoyan Lin,Dongze Li,Yingxin Wu,Yanting Zhou,Donghui Cai,Ziqi Wang
Zinc metal batteries have emerged as compelling contenders for next-generation energy storage systems, yet their practical viability remains severely hampered by intrinsic challenges associated with Zn metal anodes, such as uncontrolled dendritic growth, vigorous hydrogen evolution, and sluggish interfacial kinetics. Addressing these issues, we rationally engineer a coordination self-assembled multifunctional interphase (GSI) derived from gallic acid, which spontaneously constructs on the Zn surface via strong coordination interactions. The GSI interphase, enriched with densely packed phenolic hydroxyl and carboxyl moieties, acts as a multifunctional regulator: it offers abundant zincophilic sites to guide homogeneous Zn 2+ flux and significantly lowers the nucleation energy barrier, thereby enabling smooth and reversible Zn plating/stripping. Beyond ion-level modulation, the GSI firmly anchors onto the Zn substrate, preventing the direct contact between the Zn metal anode and aqueous electrolyte. More intriguingly, the gallic acid component exhibits a strong chemical affinity toward H 2 O molecules, enabling preferential displacement of active water from the inner Helmholtz plane (IHP), which fundamentally suppresses parasitic side reactions. Therefore, the functionalized anode achieves superior electrochemical performance, maintaining a prolonged cycling lifespan exceeding 1550 h at 1 mA cm −2 with an ultralow polarization voltage of merely ∼23 mV. This work not only unveils a simple yet powerful interfacial design strategy, but also offers critical insights into molecular-level manipulation of the Zn–electrolyte interface, paving the way toward next-generation, high-efficiency aqueous Zn-ion energy storage systems.
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DOI
PubMed
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ye Zhang,Kai Yan,Yi Jiang,Sheng-da Liu,Jia-yin Zhan,Wen-sheng Yu,Jin-xian Wang,Xiang-ting Dong,Gui-xia Liu
Zn metal anode in aqueous zinc-ion batteries (AZIBs) suffers from dendrite growth, hydrogen evolution reaction (HER), and surface passivation, deteriorating battery performance and practicality. The structural engineering of anode with more exposed Zn (002) crystal planes (Zn (002) texture) is considered an effective strategy to achieve uniform and dendrite-free zinc deposition. Current approaches for fabricating Zn (002) texture primarily involve heat treatment, rolling, electrochemical etching, and deposition techniques; however, these methods are often associated with complex operational procedures or reliance on specialized equipment. In this study, a simple surface treatment was employed to treat Zn foil using a corrosion agent containing SeS, resulting in the successful fabrication of Zn C (corrosion-treated Zn foil) with a high proportion of Zn (002) as the anode material for AZIBs. Compared to bare Zn, the relative texture coefficient (RTC) of the Zn (002) in Zn C increased from 15.9 % to 30.4 %. The Zn C symmetric battery exhibited excellent cycling stability and could stably operate for up to 1600 h under a test condition of 5 mA cm −2 /1.25 mAh cm −2 , while the symmetric battery with untreated bare Zn could only stably operate for 84 h. The increase in the proportion of Zn (002) crystal planes significantly enhanced the corrosion resistance of Zn C and effectively suppressed the occurrence of the HER, thereby significantly improving the stability of the anode. In addition, the Zn-C||MnO₂ full battery outperformed the Zn||MnO₂ in terms of specific capacity and capacity retention after cycling. This study proposed a simple and efficient strategy to significantly enhance the stability of the zinc anode by regulating the surface crystal structure composition, providing a new technical path for promoting the practical application of AZIBs.
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ACS Nano
·
2026
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IF 16
Yue Wang,Jianzhong Xu,Diguang Jia,Jinsong Sun,Xiaotong Li,Wentao Yuan,Jixue Shen,Yuanyuan Wang,Zhaoxi Shen,Ning Zhang
Aqueous zinc (Zn) metal batteries (AZMBs) are a promising candidate for large-scale energy storage, but the issues of Zn anodes involving nonuniform Zn plating/stripping, H2 evolution, and low Zn utilization rate (ZUR) in aqueous electrolytes hinder their practical application. Herein, we report an in situ colloidal electrolyte via SO42–-polycation electrostatic interaction to circumvent these challenges. Mechanistic studies reveal that the polycation-confined SO42– diffusion significantly elevates the Zn2+ transference number to 0.82, which can suppress anion-induced side reactions and minimize interfacial concentration gradients. Moreover, the polycations can form dynamic adsorption on Zn, disrupt the water’s original H-bond network, and create an H2O-poor electrical double layer, which homogenizes the electric field distribution and suppresses H2 evolution on Zn. Consequently, the optimized electrolyte (Colloid-6) enables highly compact and (100)-plane-oriented Zn electrodeposits and uniform Zn stripping behavior even at 25 mAh cm–2, corresponding to 85.4% ZUR. The Zn electrodes in Colloid-6 achieve a long-term cycling life over 4200 h under 2 mAh cm–2, deep-cycling stability over 300 h under 25 mAh cm–2, and high-temperature adaptability (80 °C). Moreover, Colloid-6 with low water reactivity can inhibit the vanadium oxide cathode dissolution, thus supporting the stable operation of Zn//V2O5·nH2O full batteries under harsh conditions.
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PubMed
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Lingyu Chi,Yibo Cui,Hongli Yu,Dong Zhao,Ruibin Hao,Jing Zhao,Quanlin Liu
Mn-doped Zn-based metal halides have attracted increasing attention for applications in white light-emitting diodes and X-ray detection, due to their structural stability and excellent luminescence performance. In this work, two positional isomers, 3-aminopiperidine (3AP) and 4-aminopiperidine (4AP), were selected as A-site organic cations to synthesize four zero-dimensional Zn-based halides, (3AP)Zn X 4 and (4AP)Zn X 4 ·H 2 O ( X = Cl/Br). By incorporating Mn 2 + as luminescent centers, a series of highly efficient phosphors with narrow-band green emission were obtained. Spectroscopic comparisons show that the 4AP-based compounds exhibit better luminescence performance than those based on 3AP. According to Hirshfeld surface analysis, 4AP series features stronger hydrogen-bonding interactions, which enhance the structural rigidity of the crystal lattice and lead to higher photoluminescence efficiency and narrower full width at half maximum. Notably, three of the Mn-doped Zn-based compounds display pronounced X-ray radioluminescence, indicating they could be promising for X-ray detection and imaging applications.
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ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Sibo Wang,Yue Zhang,Wanlong Wu,Quanwei Jiang,Hua-Yu Shi,Xiaoqi Sun
Aqueous Zn─S batteries are promising energy storage systems with high theoretical capacity and low cost. However, the direct conversion between S and ZnS at the cathode suffers extremely sluggish reaction kinetics, which further decay rapidly upon the increase of current density and active material loading. Facing these challenges, we herein present a bi-directional redox mediator strategy and identify a self-adjusted Cu-based candidate. It possesses two redox couples whose potentials are on either side of the thermodynamic redox potential of S/ZnS reaction while between its kinetic oxidation and reduction potentials. These alignments enable the bi-directional mediator to catalyze the charge and discharge processes using either redox couple, respectively. As a result, the sulfur cathode reaches a high capacity of 1629 mAh g −1 at 0.1 A g −1 . It also maintains 880 mAh g −1 after 500 cycles at 1 A g −1 , superior to rapid decay to 148 mAh g −1 after only 28 cycles with the mediator free cathode. Furthermore, with a high sulfur loading of 7.3 mg cm −2 and lean electrolyte of 7 µL mg S −1 , the Zn─S battery achieves a high areal capacity over 10 mAh cm −2 .
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Materials Today Chemistry
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2026
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IF 7.4
Haiqun Jin,Hongjie Tong,Chenxuan Mei,Haiping Lin,Kun Chen,Pu Wu
Cu/Zn-MOF nanozyme exhibits robust triple-enzyme activities. • It promotes healing by combining antibacterial, antioxidant, and pro-proliferative effects. • This work provides a strategy for designing multifunctional nanoenzyme platform for efficient wound therapy. The treatment of infected wounds is severely challenged by bacterial resistance and dysregulated healing processes. Herein, we report a bimetallic Cu/Zn-MOF nanozyme fabricated via a facile self-assembly strategy. The material exhibits robust triple-enzyme mimetic activity (superoxide dismutase (SOD), glutathione peroxidase (GPx), and ascorbate peroxidase (APx)) enabling efficient reactive oxygen species (ROS) scavenging to alleviate oxidative stress and inflammation. In vitro, Cu/Zn-MOF demonstrated potent, broad-spectrum antibacterial activity, primarily associated with disruption of bacterial nucleotide metabolism and energy homeostasis, while also promoting fibroblast proliferation and migration. In an infectious wound model, Cu/Zn-MOF treatment significantly accelerated wound closure, enhanced collagen deposition, and facilitated orderly tissue regeneration, achieving a healing rate of 93.4% by day 12. This work presents a versatile nanozyme platform that intelligently orchestrates the sequential stages of wound healing, offering a promising multi-functional strategy for regenerative medicine.
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DYES AND PIGMENTS
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2026
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IF 3.9
Xuemei Sun,Jiahao Li,Suyu Jiang,Lin Zang,Rong-Mei Kong,Yan Zhao,Weiheng Kong
The escalating incidence of antibacterial resistance presents a formidable challenge in managing bacterial infections. Traditional Zn-based antibacterial agents face limitations due to their reliance on ultraviolet activation and potential neurotoxicity. The combination of nanotechnology and traditional Chinese medicine (TCM) not only reduces the side effects of Zn 2+ but also enhances therapeutic efficacy. In this study, we synthesized Zn-baicalein nanoparticles (Zn-BE NPs) that self-assemble through chemical coordination, offering broad-spectrum antibacterial capabilities. The Zn component exhibited inherent antibacterial properties by disrupting the synthesis of bacterial metabolic enzymes and destroying genetic factors. Baicalein (BE), derived from Scutellaria , enhanced the NPs’ antibacterial efficacy by disrupting bacterial membranes and facilitating Zn 2+ influx, leading to cell wall rupture and metabolic disruption. In addition, Zn-BE NPs exhibited excellent photothermal conversion efficiency, enabling effective bactericidal action under near-infrared irradiation. This triple synergistic mechanism not only overcame the limitations of conventional Zn-based therapies but also sustained long-term antibacterial activity by preventing rapid bacterial metabolism. Our findings demonstrated that Zn-BE NPs could achieve complete bacterial eradication, showcasing expected potential in addressing antibacterial resistance. This research laid a foundation for the development of safer and more effective antibacterial agents, with implications for future applications in combating resistant infections.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Shuo Chen,Liang Zhang,Yuehui Chen,Weiyan Zhu,Jianhua Yan
The development of oxygen reduction and evolution reaction (ORR/OER) electrocatalysts for zinc-air batteries (ZABs) is impeded by insufficient stability. This study demonstrates progress in stabilizing the commercial OER electrocatalyst (RuO 2 ) by easily integrating a composite ORR electrocatalyst containing cobalt and Gd 2 O 3 nanodots, resulting in an advanced ZAB cathode. An in-situ formed Co-Gd 2 O 3 interface enhances the electronic environment of cobalt through strong metal-support interaction, thereby boosting intrinsic ORR activity and stability. Crucially, during battery cycling, Gd 2 O 3 and RuO 2 dynamically reconstruct to form a stable Gd 2 O 3 -RuO 2 interface. This facilitates directional electron transfer from Gd to Ru, effectively preventing excessive oxidation, dissolution, and structural collapse of RuO 2 under high-potential conditions, thus stabilizing the OER process. This synergistic “dual interface” strategy combines the in-situ constructed Co-Gd 2 O 3 interface with the dynamically reconstructed Gd 2 O 3 -RuO 2 interface, collectively enhancing the durability of ZAB cathode catalysis. Consequently, the assembled ZAB maintains stable cycling for 3485 cycles at 10 mA·cm −2 , demonstrating much longer stability than that of the commercial PtC/RuO 2 electrocatalyst.
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ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qiongqiong Lu,Congcong Liu,Yehong Du,Xinyu Wang,Ling Ding,Ahmad Omar,Daria Mikhailova
Aqueous zinc-ion batteries (ZIBs) are considered as a promising energy storage system due to their low cost and high safety merits. However, they suffer from the challenge of uncontrollable dendrite growth due to a non-uniform zinc deposition, which increases internal resistance and causes battery failure. Herein, Ag coating fabricated by a facile surface chemistry route on zinc metal was developed to guide uniform zinc deposition. Ag-coated Zn shows improved electrolyte wettability, a small zinc deposition overpotential, and fast kinetics for zinc deposition/dissolution. Direct optical visualization and scanning electron microscopy images show uniform zinc deposition due to the introduction of Ag coating. As a result, the Ag-coated Zn anode can sustain up to 1450 h of repeated plating/stripping with a low overpotential in symmetric cells at a current density of 0.2 mA cm–2, while an improved performance is realized for full cells paired with a V2O5-based cathode. This work provides a facile and effective approach to improve the electrochemical performance of ZIBs.
研究领域:
储能
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电化学
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材料科学
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电池技术
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
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IF 3.428
Han Zhang,Xi-Hui Diao,Chao Chen,Yaseen Muhammad,Yuan-Yuan Gao,Xiao-Jing Dong,Hao Wang,Wei Li,Chuan-Song Qi
The reactions of 1,2-bis(4-pyridyl)ethylene (bpe) and 2,5-furandicarboxylic acid (H 2 fdc) with Zinc(II) salts in different concentrations resulted in two new complexes, [Zn(fdc)(bpe)]∙DMF ( 1) and [Zn 4 (fdc) 4 (bpe) 4 (H 2 O) 2 ] ∙DMF·2H 2 O ( 2) . At lower concentrations, 1 was formed, in which {Zn 2 (CO 2 ) 2 } can be seen as a 6-connected node, and the whole framework is a 2-fold interpenetrated pcu network. On the contrary, at higher concentrations, 2 was synthesized, in which all Zn 2+ ions act as 4-connected nodes, and the whole framework is a 5-fold interpenetrated dia network. 1 and 2 are proven to be promising sensors towards Fe 3+ ions with high sensitivity and selectivity through fluorescence quenching.
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Journal of Physical Chemistry C
·
2022
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IF 4.177
Yuhan Zou,Xianzhong Yang,Zaikun Xue,Yiwen Su,Changpeng Qiao,Wenyi Guo,Ziang Chen,Jingyu Sun
The unsatisfactory cycling stability of Zn anode stemming from dendritic growth and side reactions has slowed the rapid development of aqueous Zn-ion batteries (AZIBs). Constructing a three-dimensional (3D) artificial interphase layer is an appealing solution since it could dictate Zn deposition at the interface. Here, the in situ growth of a Cu-based metal–organic framework (Cu-MOF) over commercial Zn foil followed by subsequent selenization endows selenized Cu-MOF (SCM) with a stabilized Zn anode. The 3D SCM coating could homogenize the electric field and function as a reservoir to tolerate the deposited Zn. As a result, both rampant dendritic propagation and the notorious side reactions are concurrently inhibited. The SCM@Zn symmetric cell displays an elongated cyclic life for over 500 h at 2.0 mA cm–2. The assembled AZIB full cell readily realizes high electrochemical reversibility under different current densities. Our investigation offers insights into the design of a protective layer for high-performance Zn anodes.
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