JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Wenping Zeng,Xudong Wang,Yun Huang,Yunhe Zhang,He Zheng,Jie Xiao,Lei Fu,Xichang Wang,Xing Li,Mingshan Wang,Bingshu Guo,Yuanhua Lin
The growth of dendritic dendrites and side reactions at the zinc anode result in poor cycling stability of the aqueous zinc-ion battery (AZIBs). Here, we report on a multifunctional additive, Sodium lactobionate (SL), that achieves more stable cycling performance. SL molecule can loosen the solvation structure of water and Zn 2+ , inhibit corrosion and hydrogen evolution reactions , and regulate ion deposition in AZIBs. Under the action of SL, the Zn//Zn symmetric battery achieves an ultra-long stable cycle of up to 2150 h at a current density of 2 mA·cm −2 and an area capacity of 1 mAh cm −2 and Zn//NVO can still perform 1110 cycles at the current density of 2 A g −1 and maintain the reversible specific discharge capacity of 179 mAh g −1 . In addition, at 2 mA cm −2 and 0.5 mAh cm −2 , the Zn//Cu asymmetric battery achieved up to 350 cycles with a coulomb efficiency of 99.5 %.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Tianbao Liu,Weixuan Zhao,Shenhua Meng,Biao Dong,Nan Shi,Weiguang Shi
Tetracycline (TC) contributes to the spread of antibiotic resistance, leading to ecological imbalances and negative environmental impacts. Achieving multifunctional applications that allow for specific recognition and in-situ degradation of tetracycline simultaneously remains a significant challenge. This study developed a series of metal-doped carbon dots, specifically zinc-doped carbon dots (Zn-CDs). The incorporation of zinc and the preservation of oxygen-containing functional groups enhance the crystallinity of the Zn-CDs' carbon core and optimize their band gap for improved light luminescence, thereby increasing the quantum yield from 14.7% to 28.6%. Moreover, Zn-CDs demonstrate precise detection of TC in complex pollutant mixtures, achieving a detection limit as low as 25 nM. The mechanism comprises the internal filtering effect attributed to spectral overlap and the electron transfer subsequent to the chelation of zinc in Zn-CDs and carbonyl oxygen in tetracycline. Due to the combination of Zn-CDs with tetracycline that brings a shorter reaction distance and the introduction of zinc that offers more active sites for the generation of free radicals, the degradation reaction likelihood is augmented. The Fenton-like and photocatalytic degradation efficiencies of Zn-CDs were raised over three times, reaching a degradation rate of TC up to 95% and showing excellent stability over five cycles. And the main degradation pathways were respectively driven by hydroxyl radicals and superoxide radicals. Thus, this research provides novel perspectives and examples for constructing multifunctional carbon dots via the metal doping method to effectively tackle environmental pollution.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2024
·Vol. 53
·期 36
·15093-15100
·
IF 3.5
Fang Wu,Yuhong Jiao,Jin-long Ge,Yujun Zhu,Chao Feng,Zhong Wu,Qiu Li
Facilitating the surface reconstruction of pre-catalysts has been considered an effective strategy for constructing low-cost and highly efficient OER electrocatalysts. Metal doping is a feasible way to activate the surface reconstruction, thus enhancing the OER performance. Herein, we report a facile hydrothermal method to synthesize a series of Zn-doped Ni-MOF on nickel foam (NiZn-MOF/NF) as promising pre-catalysts toward the oxygen evolution reaction (OER). The Zn leaching of NiZn-MOF/NF can promote the surface self-reconstruction of NiZn-MOF/NF into oxygen-vacancy-rich NiOOH after electrochemical activation. Benefiting from the optimized electronic structure, abundant defects, more accessible active sites, and enhanced electrical conductivity, the reconstructed metal oxyhydroxide hybrids exhibit better electrocatalytic activity than the catalysts transformed from Ni-MOF/NF without Zn doping. The optimized NiZn-MOF/NF-OH as an OER catalyst has an overpotential of 336 mV at 100 mA cm−2, and a Tafel slope of 65.9 mV dec−1, as well as stability over 12 h. This work reveals that Zn cation-doping/leaching induces the surface reconstruction of pre-catalysts for enhanced oxygen catalytic activity, which provides a new approach for the development of advanced electrocatalysts.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
·
2025
·
IF 3.1
Minghao Zhou,Shijiao Zhang,Yanlai Wang
By employing semiconductor composite strategies and morphology control, Zn-doped CuInS 2 quantum dots with a ZnS shell structure (ZCIS@ZnS QDs) have been synthesized and combined with TiO 2 nanowires or nanoparticles (NWs/NPs) for photodetector applications. In the composite material, the QDs are uniformly attached to the surface of TiO 2 NWs/NPs. The photodetector constructed with ZCIS@ZnS QDs and TiO 2 NWs/NPs (ZCIS@ZnS@TiO 2 NWs/NPs) demonstrated superior photodetection performance. It exhibited excellent responsivity (∼6.2 mA/W) and detectivity (∼1.6 × 10 12 Jones) under ultraviolet (UV) illumination (∼365 nm). This non-toxic and environmentally friendly composite material provides a promising alternative for applications in various fields.
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Xin Guo,Ying Liu,Lixun Feng,Peiran Xu,Yuan Yang,Xiaochun Gao,Huiting Sui,Xiaoning Wang,Xitao Yin,Xiaoguang Ma
Metal-organic frameworks (MOFs) are a promising class of electrode materials for supercapacitors. In this work, MOF-derived transition metal oxide/carbon nanofiber composites (ZnCoO/C) are synthesized through a freeze-drying method followed by a carbonization process. The crystal structure of the ZnCoO/C product is regulated by changing the ratio of Co to Zn, which in turn influences its electrode properties. The electrochemical tests reveal that the ZnCoO/C-2 electrode demonstrates an impressive specific capacitance of 356.3 F g -1 at 1 A g -1 and maintains a capacitance retention exceeding 77 % after 10,000 cycles, which exhibits a good cycling stability. It is found that appropriate Zn substitution can diminish the crystallinity of the material, augment the active sites, and enhance the specific capacitance of the electrode material. Considering the heteroatom substitution tends to introduce vacancy defects in the crystals, this work theoretically explores the effect of oxygen vacancies on the electrode materials. As the oxygen vacancy concentration increases, the band gap and the adsorption energy of the models decrease; conversely, the formation energy of the models shows an increasing tendency. This indicates that an increase in oxygen vacancies can enhance the electrical conductivity of electrode materials and facilitate their kinetic process but destroy the stability of crystal. This research explores the interplay between the microstructure and the electrochemical performance of electrode materials, providing a foundational reference for the design of structurally optimized high-performance electrodes and further elucidating the energy storage mechanisms in supercapacitors.
✓ 已验证
产品关联
DOI
高影响因子
Journal of the American Chemical Society
·
2025
·
IF 15.6
Yin Qin,Sihao Deng,Xiao-Ye Zhou,Zilin Yan,Lunhua He,Kaikai Li,Tong-Yi Zhang
The lattice oxygen evolution reaction (OER) is the currently predominant mechanism, while the grain boundary (GB) OER is still the enigma. This study proposes the grain boundary oxygen mechanism (GBOM) and validates it using Zn-RuO2@ZnO in OER. An optimal GB density in Zn-RuO2@ZnO achieves an overpotential of 170 mV and 600 h durability at 10 mA cm–2. As an anode catalyst in proton-exchange membrane water electrolyzers (PEMWEs), Zn-RuO2@ZnO exhibits exceptional stability (>300 h at 500 mA cm–2) and high efficiency, requiring only 1.68 V to deliver 1 A cm–2 under 60 °C. Notably, the reduced symmetry at GBs enhances the Ru 4dxy-O 2p hybridization, manifested as a distinct antiferromagnetic state, which activates the GBOM pathway and stabilizes its operation through electron transfer into lower-energy orbitals. Our findings highlight that GBs with antiferromagnetic characteristics offer an intriguing design strategy for developing highly active and stable OER catalysts.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Liangyuan Chen,Jiangfeng Liu,Jitao Shang,Jin-Xiu Liu,Zhaofu Zhang,Xiaolin Liu,Du Wang,Yan Zhao
The instability of Zn anodes arising from uncontrolled deposition remains a critical bottleneck for zinc-metal batteries. Here, a sustainable Zn/Cu co-deposition strategy is reported via a cost-effective ethanol-based hybrid electrolyte (EtZCL-Cu) containing ZnCl 2 and insoluble Cu(OH) 2 additives. The high Cl − concentration enables continuous Cu 2+ release via complexation-driven Cu(OH) 2 dissolution, facilitating spontaneous Zn/Cu displacement-alloying reactions during cycling. This dynamic reconstruction mechanism ensures long-term exposure of zincophilic Cu sites on the electrodeposited Zn surface, thereby effectively preventing the defunctionalization of zincophilic alloy interfaces. The reconfigurable alloy interface maintains zero nucleation overpotential and enables dendrite-inhibited Zn electrodeposition, achieving exceptional cycling stability (>6000 h) in Zn symmetric cells. The ethanol solvent and Cl − complexed Cu + /Cu 2+ redox couple cooperatively increase the capacity of the activated carbon cathode full cells, delivering >90 mAh g −1 over 10,000 cycles at 0.5 A g −1 , with 95.9% capacity retention. This work establishes a sustainable interfacial engineering paradigm through electrolyte-mediated in situ alloying, effectively addressing the critical challenge of zincophilic interface defunctionalization in Zn-metal battery systems.
✓ 已验证
产品关联
DOI
高影响因子
Food Bioscience
·
2024
·
IF 4.8
Ying Wu,Feiran Xu,Lingjie Kong,Xiaomin Li,Liangmin Wei,Baocai Xu
In this study, we investigated cooked hams to understand the relationship between display life and quality changes, as well as the microbiological characteristics of refrigerated storage for up to 90 days. Initially, the L* and a* values exhibited an initial decline with a gradual restitution to levels insignificantly disparate from those Day 15 hams. In contrast, the b* and h° values demonstrated an ascending pattern, indicating an augmentation in yellow intensity during the storage. Furthermore, there was an observable escalation in the C* value following 45 days of storage, implying an amplified luminosity and vividness of color during the latter phase of the storage period. Analyses of TBARS , TVB-N, and other physicochemical indexes indicated that the hams underwent deterioration during storage. Whereas, UV–vis and fluorescence spectroscopy illustrated that the pigment in cooked hams changed from nitrosylheme (NO-heme) to Zn-protoporphyrin IX (ZnPP) during storage. The NO-heme content decreased from 41.08 ± 0.44 to 12.76 ± 0.29 mg/kg, while the ZnPP content increased from 12.19 ± 0.41 to 89.44 ± 1.57 mg/kg. The structure of the bacterial community in the ham samples changed over the storage period. Towards the end of the shelf life, the microbial population was dominated by Lactic acid bacteria (LAB), particularly Latilactobacillus (34.91%) and Leuconostoc (19.73%). Redundancy analysis and Pearson correlation revealed a positive correlation between Latilactobacillus and Leuconostoc with TBARS , TVB-N, ZnPP content, and negative correlations with Aw and NO-heme.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·Vol. 37
·期 12
·2418482
·
IF 26.8
Xiaoling Sun,Hongyi Chen,Yitong Li,Dewen Zeng,Pengfei Qiu,Huarong Zeng,Xiaobo Ji,Lidong Chen,Xun Shi
Typical technologies that can convert waste heat into electricity include thermoelectrics, thermionic capacitors, thermo-cells, thermal charge cells, and thermally regenerative electrochemical cycles. They have small thermal-to-electrical conversion efficiency or poor stability, severely hindering the efficient recovery of waste heat. Herein, a thermally regenerative electrochemical Zn-ion battery to work under Carnot-like mode to efficiently harvest waste heat into electricity is successfully developed. Through introducing Layered Double Hydroxides to modify the battery's anode reaction, a record absolute high temperature coefficient of 2.944 mV K −1 is achieved in NiHCF/Zn battery, leading to a high thermal-to-electrical conversion efficiency of 26.08% of the Carnot efficiency and an extraordinary energy efficiency of 104.11% when the battery is charged at 50 °C and discharged at 5 °C. This work demonstrates that thermally regenerative electrochemical batteries can effectively harvest waste heat to provide a powerful energy conversion technology.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Matter
·
2025
·
IF 17.5
Yingnan Wang,Jinting Wu,Qian Zhang,Yingjun Tan,Jian Gao,Xiao-Dong Zhu,Yong-Chao Zhang,Shaojun Guo
Given the trade-off between activity and selectivity, typical pure CoSe 2 catalyst that excels in the initial proton-coupled electron transfer, however, usually underperforms in the subsequent reaction process, leading to low performance for acidic 2e − oxygen reduction reaction (ORR) to H 2 O 2 . Here, we report a class of Zn–Co pair active sites on the defected CoSe 2- x . The Zn–Co pair active site can well modulate electronic structure for enhancing the adsorption and activation of ∗O 2 to achieve high-selectivity electrosynthesis of H 2 O 2 . The surrounding Co site has the optimal Gibbs free energy for ∗OOH because of the d-p orbital hybridization between the near-end O (∗OOH) and Co near the Fermi level. The Zn 1 -Co/CoSe 2- x catalyst achieves high selectivity of 95% under 0 V against a reversible hydrogen electrode (RHE) and the maximum productivity of 2.26 mol g cat. −1 h −1 at 250 mA cm −2 , which is among the best non-noble metal-based compound catalysts in an acidic medium.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2024
·
IF 5.4
Xia Wei,Tianyao Wang,Hongbin Dai,Song Li
The hydrazine oxidation reaction (HzOR) is critical for direct hydrazine fuel cells and presents a promising alternative to the kinetics-sluggish oxygen evolution reaction in water splitting. Engineering catalysts with high-density nanotwin structures has emerged as a compelling strategy to enhance catalytic activity. However, such catalysts have to be explored for HzOR applications. This work reports the successful synthesis of a porous Ni–Zn catalyst featuring high-density coherent nanotwins (NT-Ni-Zn). NT-Ni-Zn supported on Ni foam exhibited exceptionally high catalytic activity and stability toward the HzOR, achieving a current density of 212.4 mA·cm–2 at 0.04 V vs reversible hydrogen electrode and retaining up to 93.9% after 15 h of continuous electrolysis. In addition, hydrazine-assisted water electrolysis using NT-Ni-Zn/Ni foam as both the cathode and anode require only a cell voltage of 70 mV to reach 10 mA cm–2. The exceptional HzOR activity of the Ni–Zn catalyst is attributed to the presence of the nanotwin structure, which promotes a favorable d-band center position and facilitates strong hydrazine binding on the twinned surface. This study provides valuable insights into the development of nanotwin catalysts for HzOR advancement.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-13
·
IF 14.7
Meng Yahan,Wang Mingming,Wang Jiazhi,Huang Xuehai,Zhou Xiang,Sajid Muhammad,Xie Zehui,Luo Ruihao,Zhu Zhengxin,Zhang Zuodong,Khan Nawab Ali,Wang Yu,Li Zhenyu,Chen Wei
Construction of a solid electrolyte interphase (SEI) of zinc (Zn) electrode is an effective strategy to stabilize Zn electrode/electrolyte interface. However, single-layer SEIs of Zn electrodes undergo rupture and consequent failure during repeated Zn plating/stripping. Here, we propose the construction of a robust bilayer SEI that simultaneously achieves homogeneous Zn 2+ transport and durable mechanical stability for high Zn utilization rate (ZUR) and Coulombic efficiency (CE) of Zn electrode by adding 1,3-Dimethyl-2-imidazolidinone as a representative electrolyte additive. This bilayer SEI on Zn surface consists of a crystalline ZnCO 3 -rich outer layer and an amorphous ZnS-rich inner layer. The ordered outer layer improves the mechanical stability during cycling, and the amorphous inner layer homogenizes Zn 2+ transport for homogeneous, dense Zn deposition. As a result, the bilayer SEI enables reversible Zn plating/stripping for 4800 cycles with an average CE of 99.95% (± 0.06%). Meanwhile, Zn | |Zn symmetric cells show durable lifetime for over 550 h with a high ZUR of 98% under an areal capacity of 28.4 mAh cm −2 . Furthermore, the Zn full cells based on the bilayer SEI functionalized Zn negative electrodes coupled with different positive electrodes all exhibit stable cycling performance under high ZUR.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）