ACS Sustainable Chemistry & Engineering
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2026
·
IF 7.6
Xunzhen Sun,Xiao Zhang,Hui Gu,Jiayi Li,Fei Lu,Long Su,Xinpei Gao
Aqueous zinc–iodine (Zn–I2) batteries are promising for sustainable energy storage owing to their intrinsic safety, environmental benignity, and the highly reversible redox chemistry of iodine. However, water-induced side reactions at the Zn anode and the shuttling effect of polyiodides trigger severe self-discharge and interfacial instability. Herein, a molecular-weaving–inspired strategy was developed, in which topological chain entanglements cooperate with dynamic ionic/coordination junctions to build a dual-cross-linked hydrogel electrolyte. In such weaving-inspired entangled networks, Zn2+-activated junction dynamics dissipate energy and prevent stress localization, while the enduring entanglement preserves network integrity. Simultaneously, the introduction of abundant coordination sites along the polymer backbone reconfigures the local Zn2+ solvation environment and mitigates Zn anode side reactions and dendrite growth. Moreover, these coordinated Zn2+ nodes effectively suppress the polyiodide shuttle without compromising ionic conductivity. Benefiting from these synergistic effects, the designed hydrogel electrolyte enables highly stable Zn plating/stripping, achieving an average Coulombic efficiency of 99.46% in Zn//Cu cells. The assembled Zn//I2 full cells deliver excellent durability with a high capacity retention of 87.8% after 9000 cycles at 5.0 A g–1. This work establishes a viable weaving-inspired design strategy for natural polymer-based hydrogel electrolytes toward durable aqueous Zn–I2 batteries and beyond.
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Journal of Energy Storage
·
2026
·
IF 10.7
Keguang Xu,Yongwen Wang,Xinyu Gao,Feng Han,Qin Gong,Ruonan Pan,ChenXiao Liu,Yiran Niu,Gang Wang,Ting Tang,Shaofei Li,Tiantian Gu
Organic materials have emerged as promising cathode materials for aqueous zinc-ion batteries (AZIBs) due to their structural flexibility, inherent safety, and environmental compatibility. Yet, their practical adoption is impeded by challenges such as inadequate cycling stability and complex synthesis. This work presents a facile, two-minute room-temperature stirring method to synthesize key dipyridyl pyrazine derivatives, which include dipyrido[3,2-f:2′,3′-h]quinoxaline (DPQ), dipyrido[3,2-a:2′,3′-c]phenazine (DPPZ), and benzo[ i ]dipyrido[3,2-a:2′,3′-c]phenazine (DPPN). The corresponding molecular design strategy targeted increased active site density, extended π-conjugation, enhanced electron delocalization, and improved charge transfer kinetics. Accordingly, the DPPZ-based electrode delivered remarkable electrochemical performance, achieving reversible capacities of 120.5 mAh g −1 at 0.05 A g −1 and 83.4 mAh g −1 at 5 A g −1 , along with 76.6% capacity retention over 6000 cycles. Moreover, it further exhibited outstanding low-temperature performance, retaining 62.0 mAh g −1 at 1 A g −1 and 95.4% of its capacity after 7000 cycles at −20 °C, indicating its potential for use in low-temperature environments. The energy storage mechanism, based on the reversible co-insertion of Zn 2+ and H + at C N sites, was investigated by employing ex situ characterizations coupled with density functional theory (DFT) calculations. These findings underscore a rapid molecular engineering approach that paves the way for advanced organic electrodes in AZIBs.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Huaifang Teng,Songliang Liu,Dalin Xu,Cong Zhang,Guangshuo Li,Meixiang Zheng,Xuejing Cui,Xin Chen,Luhua Jiang
Palladium (Pd) is one of the most promising catalysts for oxygen reduction reaction (ORR), however its activity is limited by the excessively strong adsorption of oxygen-containing intermediates. Herein, a one-dimensional (1D) ultrafine PdMo alloy nanowire (PdMo NWs) is synthesized, which exhibits excellent ORR activity and stability in both half cells and zinc-air batteries. The mass activity ( 1.08 mA μg Pd − 1 ) and specific activity (1.74 mA cm −2 ) of PdMo NWs are 9.2 and 6.9 times higher than that of a commercial nanosized Pt/C, respectively. Especially, the zinc-air battery with the PdMo NWs cathode achieves a peak power density of 214.8 mW cm −2 , and remains stable in a 160 h durability test. DFT calculations and in-situ electrochemical Fourier-transform infrared spectroscopy characterization reveal that the introduction of Mo significantly downshifts the d -band center of Pd, inhibiting excessive adsorption of the oxygen intermediates, thereby accelerating the ORR processes. This work demonstrates a 1D ultrafine Pd-based alloy nanowire as an effective and robust electrocatalyst for the ORR, and provides direct spectroscopic evidence for alleviated adsorption of oxygen intermediates on PdMo surfaces.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Dan Liao,Yujie Kou,Tianxiu Du,Kai Li,Zhongfeng Li,Yong Wang
Despite a bright prospect because of intrinsic safety and low price, the commercialization of aqueous zinc-ion batteries (AZIBs) is hindered by serious issues including dendrite development, passivation and corrosion of Zn anodes. Herein, volcanic mud (VM) as a natural mineral is utilized as a protective layer of Zn anode (ZnVM@Zn). The nanoporous structure of VM can provide abundant channels for rapid migration of Zn 2+ ( t = 0.92) and regulation of Zn 2+ flux, facilitating Zn uniform deposition. Furthermore, the ZnVM protective layer possesses low desolvation activation energy (44.56 kJ mol −1 ), effectively controlling the hydrated Zn-ions desolvation and thereby inhibiting water-induced corrosion and passivation of Zn anodes. Notably, nuclear magnetic resonance (NMR) also authenticates the desolvation effect of VM. With these characteristics, ZnVM@Zn||ZnVM@Zn symmetric cell achieves a lengthy circulation of over 1600 h at 0.5 mA cm −2 . ZnVM@Zn||MnO 2 full cell retains a capacity of 185.4 mAh g −1 after 700 circulations at 1 A g −1 , with 94.8% capacity-retention. This study offers novel insights into Zn anode protection in AZIBs.
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JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2025
·
IF 3.3
Nai-Cui Liu,Yu-Zhu Zhao,Tao Zhan,Moldir Rustem,Zhencheng Chen,Guo-Cheng Han,Xiao-Zhen Feng,Heinz-Bernhard Kraatz
Trans-resveratrol (TRA) has garnered significant attention due to its multiple pharmacological activities. This study fabricated a Zn-MOF/MWNTs-OH/GCE electrochemical detection platform for TRA detection by modifying a glassy carbon electrode (GCE) with a composite of hydroxyl-functionalized multi-walled carbon nanotubes (MWNTs-OH) and zinc-based metal-organic framework (Zn-MOF). The structure and composition of the materials were characterized using scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The results indicate that the Zn-MOF/MWNTs-OH/GCE has an excellent electrochemical response to TRA, featuring a linear detection range of 1.00- 600.00 μM and a detection limit of 0.32 μM. Additionally, the detection platform exhibits good reproducibility, stability, and selectivity. In the grape skin sample detection, the recovery rate ranges from 98.48% to 105.19%, the RSD is less than 4.62%, and the accuracy of the results is verified by fluorometry.
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ACS Catalysis
·
2026
·
IF 13.6
Shuangfeng Ren,Yihui Li,Ye Chen,Xiaoling Mou,Ziang Zhao,Hejun Zhu,Xiaoyan Liu,Yu Meng,Li Yan,Apoorva Ravi,Amol Amrute,Ronghe Lin,Yunjie Ding
The rational design of selective, earth-abundant Ni-based catalysts for the reverse water–gas shift (RWGS) reaction is often hampered by an incomplete understanding of their operando active states. This study reveals that the CO2 hydrogenation selectivity over Ni–Zn catalysts is governed by a support-dependent, reaction-induced dynamic restructuring, rather than by any static, preformed sites. Through a combination of in situ characterization and theoretical calculations, we demonstrate that the active Ni–Zn intermetallic core encapsulated by ZnO forms dynamically only under the RWGS atmosphere on ZrO2 and TiO2 supports, but not on Al2O3 or during mere H2 reduction. Crucially, we identify in situ-generated CO as the essential inducer of this reconstruction, likely via facilitating ZnO reduction. Furthermore, the product selectivity (CO vs CH4) is dictated by the kinetic competition between CO desorption and its deep hydrogenation, a principle quantitatively linked to the evolved electronic structure of the active surface. This work shifts the paradigm toward designing catalysts that evolve into optimal structures in operando and provides a fundamental kinetic framework for selective CO2 conversion.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Honghong Yi,Kai Chen,Hongkun Ni,Yiming Ma,Xiaolong Tang,Qingjun Yu,Fengyu Gao,Shunzheng Zhao
This study employs a synergistic strategy of Zn doping and KOH etching to precisely regulate the physicochemical properties of CeO 2 , significantly enhancing its H 2 S catalytic oxidation performance. Experimental results indicate that Zn doping induces lattice expansion of CeO 2 , while KOH etching further removes Zn, increases Ce 3+ and oxygen vacancy concentrations, thereby optimizing surface acidity-basicity and redox capability. The obtained E-Zn/CeO 2 material exhibits excellent H 2 S conversion, reaction and kinetics, while promoting the selective formation of SO 2 . Mechanistic studies reveal that H 2 S undergoes adsorption and dissociation via μ 2 -OH/–COOH groups on the material surface, with the oxidation process following the MvK mechanism, where oxygen vacancies play a key role in adsorption and lattice oxygen transfer. Theoretical calculations further demonstrate that the synergistic modification induces reconstruction of the electronic structure of CeO 2 , including weakened covalency of Ce O bonds and a spin-state transition of O 2p orbitals, which significantly reduces the oxygen vacancy formation energy (as low as −1.47 eV) and enhances structural stability. This work provides both experimental and theoretical foundations for the rational design of highly efficient H 2 S catalytic materials.
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高影响因子
FUEL
·
2023
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IF 7.4
Peng Wang,Huafei Liao,Meng Yang,Lizhi Wu,Yu Tang,Li Tan
The deactivation of Pt-based catalysts is the most critical problem in nonoxidative propane dehydrogenation reaction (PDH), usually manifested in carbon deposition and active site sintering. Zn, as another cheap metal with more abundant reserves than Sn, is also widely used as an assistant in Pt-based catalysts. However, both of them are easy to be reduced to metal valence state and lost in the reaction process. Herein, the enlarged quantities of Zn are applied in the bimetallic Pt-Zn catalyst preparation. As confirmed by the increased reduction temperature of oxidized Zn species, it effectively minimizes the influence of the active metal mobility caused by Zn loss. At the same time, the constructed bimetallic structure modulates the surface acidity of Zn species and presents benign propylene desorption ability, thus the formed highly dispersed Pt sites on the surface of Pt 1 Zn 1 alloy are well-matched with its high propylene selectivity (∼98.6%). In addition, the rich-Zn Pt 1 Zn 1 sites are beneficial for enhancing the capability of resisting-coke, thus retarding the deactivation of this catalyst.
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Small
·
2026
·
IF 11.8
Kun Zhang,Ranfeng Wang,Tao Feng,Yuede Pan,Gang Li,Kaiying Wang,Congwei Wang
Despite their promising potential, the advancement of zinc-ion hybrid supercapacitors (ZHSCs) is significantly impeded by sluggish zinc-ion migration, parasitic side reactions, and dendrite growth, challenges that are exacerbated under low-temperature conditions. Current research predominantly focuses on zinc ions, while the critical role of anions in mediating these degradation pathways has been largely overlooked. Herein, we present a “cation group-driven dual-track regulation” strategy by engineering a cationic hydrogel electrolyte composed of poly(acryloyloxyethyl trimethyl ammonium chloride) (PDAC) and ZnCl 2 . The immobilized quaternary ammonium groups (─N + (CH 3 ) 3 ) electrostatically confine Cl ‒ anions, thereby creating highly efficient Zn 2+ -selective migration channels and suppressing competing side reactions. Simultaneously, these cationic groups adsorb onto high-energy zinc crystal facets, guiding (002)-oriented Zn deposition and effectively inhibiting dendrite growth. The optimized PDAC-based electrolyte delivers a high ionic conductivity of 5.3 mS cm −1 at −50°C, a Zn 2+ transference number of 0.87, and exceptional average reversibility of Zn plating/stripping (98%) in Zn||Cu cells down to −40°C. Moreover, PDAC-optimized ZHSCs demonstrate outstanding cyclability over 20 000 at −40°C (95.2% capacity retention). This work establishes a generalizable electrolyte design paradigm that concurrently addresses kinetic and interfacial limitations, paving the way for dendrite-free, high-performance Zn-based energy storage systems operable under low-temperature conditions.
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高影响因子
ACTA MATERIALIA
·
2026
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IF 10.7
Yucheng Lv,Yao Di,Linlin Zhou,Hui Xu,Xinmei Hou,Yanglong Hou
The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are central to renewable energy technologies, yet their sluggish kinetics and reliance on scarce noble-metal catalysts hinder large-scale implementation. Here, we demonstrate that sulfur (S) -mediated spin-state engineering of single-atom Fe catalysts establishes a direct structure-spin-activity relationship for bifunctional oxygen electrocatalysis. Optimal S coordination shifts the Fe centers to a high-spin configuration within a porous hollow carbon architecture. This spin-state modulation optimizes the adsorption energetics of oxygen intermediates, lowering kinetic barriers for both ORR and OER. FeS 2 NC-h exhibits outstanding OER and ORR activity in alkaline media, achieving a low potential gap (ΔE) of 0.63 V, markedly outperforming the commercial Pt/C+IrO 2 (0.79 V). In rechargeable Zn-air batteries (RZABs), FeS 2 NC-h enables an open-circuit voltage of 1.50 V, peak power density of 202 mW cm −2 , specific capacity of 812 mAh g Zn −1 , and exceptional cycling durability exceeding 1200 h with round-trip efficiency >58%. This work establishes heteroatom-enabled spin-state engineering as a powerful strategy to transcend traditional coordination optimization, offering a general pathway to noble-metal-free integrated oxygen electrocatalysts for sustainable energy conversion and storage. Download: Download high-res image (302KB) Download: Download full-size image
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高影响因子
Energy Materials
·
2026
·Vol. 6
·期 3
·N
·
IF 11.9
Ying-Sen Xia\u003Csup\u003E1\u003C\u002Fsup\u003E,Jun-Cai Zhang\u003Csup\u003E1\u003C\u002Fsup\u003E,Jie Huang\u003Csup\u003E1\u003C\u002Fsup\u003E,Jin-Rui Cai\u003Csup\u003E1\u003C\u002Fsup\u003E,Ling-Jie Liu\u003Csup\u003E1\u003C\u002Fsup\u003E,Gan Huang\u003Csup\u003E1\u003C\u002Fsup\u003E,Li-Mei Lin\u003Csup\u003E1,*\u003C\u002Fsup\u003E,Zhi-Ping Huang\u003Csup\u003E1\u003C\u002Fsup\u003E,Hu Li\u003Csup\u003E1,*\u003C\u002Fsup\u003E,Shuiyuan Chen\u003Csup\u003E1,2,*\u003C\u002Fsup\u003E,Gui-Lin Chen\u003Csup\u003E1,2,*\u003C\u002Fsup\u003E
Sb2S3 has emerged as a highly promising material for thin-film solar cells due to its low toxicity, excellent stability, and strong light absorption in the visible region. However, challenges such as the formation of the Sb2O3 secondary phase and S re-evaporation still exist during the high-temperature annealing of Sb2S3. To address these issues, this study introduces a strategy involving the pre-deposition of an ultrathin ZnO protective layer onto the Sb2S3 surface. The ZnO layer facilitates controlled oxygen passivation through a lattice-vacancy-mediated mass transfer mechanism, effectively suppressing the formation of Sb2O3 and minimizing Sb2S3 volatilization, while simultaneously forming a Zn-doping layer. The results show that Zn doping significantly enhances the energy level alignment at the back interface: the conduction band minimum (CBM) and valence band maximum (VBM) of the Sb2O3/Sb2S3 mixed layer are upshifted, and the Fermi level is downshifted, thereby promoting hole transport. Additionally, the carrier concentration increases, reducing the contact barrier with the carbon electrode. This modification enables the power conversion efficiency (PCE) of all-inorganic Sb2S3 solar cells with fluorine-doped tin oxide (FTO)/CdS/Sb2S3/PbS/Carbon/Ag structures to reach an impressive 7.00%, representing the most advanced performance level currently available and providing new guidance for the development of high-performance and low-cost all-inorganic Sb2S3 solar cells.
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Journal of Materials Chemistry A
·
2022
·Vol. 11
·期 4
·1793-1800
·
IF 14.511
Yu Nie,Tingting Bo,Wei Zhou,Huilin Hu,Xiang Huang,Huaiyuan Wang,Xin Tan,Lequan Liu,Jinhua Ye,Tao Yu
How to regulate the energy barrier of *COOH is the rate determining step of the photocatalytic reduction of CO2 to produce gaseous CO. Herein, an appropriate Zn vacancy on ZnIn2S4 was synthesised to achieve the desired photocatalytic CO2 reduction capacity (CO: 5.63 mmol g−1 h−1) and selectivity (CO: 97.9%). Various sulfhydryl groups were selected to regulate the Zn vacancy formation in ZnIn2S4, which directly generated the unsaturated coordination state of the sulfur adjacent to the Zn vacancy accompanied by less electrons when compared to ZnIn2S4 without Zn vacancy. Comprehensive experimental analysis and theoretical calculations demonstrated that the appropriate Zn vacancy tuned the Gibbs free energy of *COOH from the endothermic process to the exothermic process in the process of the photoreduction CO2. This work provided an engineering method for cation vacancies and improvement of the efficiency of photocatalytic CO2 reduction by adjusting the energy barrier of intermediate.
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