JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
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2016
·
IF 3.958
Xian-Dong Lang,Yi-Chen Yu,Liang-Nian He
Bifunctional Zn-salen complexes with multiple hydrogen bonding donors and protic ammonium bromides were developed as efficient catalysts for the formation of 4-phenyl-1,3-dioxolan-2-one from styrene oxide and CO 2 . Owing to synergistic effects of multiple sites on epoxide activation (Lewis acidic zinc, phenolic hydroxyl group and protonated tertiary ammonium able to activate epoxide and bromide anion acting as a nucleophile), the easily-synthesized Zn-salen complexes showed outstanding performance at mild reaction conditions (CO 2 0.1 MPa, 100 °C) using only 0.3 mol% catalyst amount. Besides, this protocol is applicable to a variety of epoxides including internal epoxide, giving the corresponding cyclic carbonates in good to excellent yields. Notably, 200 mmol-scale experiment was successfully conducted and TON of 49288 ± 13 and TOF of 39473 ± 8 h −1 were achieved.
研究领域:
化学
·
催化
·
绿色化学
·
有机金属化学
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产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2016
·Vol. 18
·期 21
·3842-3849
·
IF 3.849
Chunping Gao,Qi Shi,Jinxiang Dong
The performance of two hydrophobic zeolitic imidazolate frameworks, MAF-6 and TIF-1 Zn, in adsorptive separation of 1-butanol from acetone–butanol–ethanol model fermentation broth was studied and compared to the data reported for ZIF-8. It was found that, in single-component systems, the adsorption capacities of ZIF-8 and MAF-6 were larger than that of TIF-1 Zn, mainly because of their larger pore volume; however, the time necessary to reach equilibrium was shorter when TIF-1 Zn with a larger pore aperture was used. In breakthrough experiments, it was shown that the adsorptive separation mechanism on ZIF-8 and MAF-6 was based on combined thermodynamics and kinetic effects; on TIF-1 Zn, thermodynamic adsorption took place.
研究领域:
生物工程
·
化学工程
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Cancan Wang,Zhenyong Wang,Yongyuan Ren,Xiao Hou,Feng Yan
Herein, we present a strategy for a switchable electrochromic zinc mirror/battery, which acts as a battery and a switchable electrochromic device via the electrodeposition and dissolution of Zn onto a transparent electrode. In this device, Zn and viologen constitute the anode and the cathode, respectively. Upon battery charging, Zn is electrodeposited onto the electrode to form a mirror while electric energy is stored as chemical energy. If the Zn mirror dissolves, the stored energy is released as electric energy. Compared with traditional electrochemical metallic mirrors, energy is sufficiently and sustainably utilized in this way. Also, a high reflectance of 84.9% and a specific capacity of 65.0 mAh g–1 are obtained for the Zn mirror, suggesting its excellent mirror performance and intrinsic energy storage properties. It is believed that this successful introduction of the battery concept to electrochemical metallic mirrors opens a wide avenue to drive its development toward a more imaginative and environmentally friendly future.
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DOI
高影响因子
Batteries-Basel
·
2024
·Vol. 10
·期 3
·102
·
IF 4.6
Xingyun Zhang,Kailimai Su,Yue Hu,Kaiyuan Xue,Yan Wang,Minmin Han,Junwei Lang
The zinc anode mainly faces technical problems such as short circuits caused by the growth of dendrite, low coulomb efficiency, and a short cycle life caused by side reactions, which impedes the rapid development of aqueous zinc-ion batteries (AZIBs). Herein, a common ionic liquid, 1,1-Spirobipyrrolidinium tetrafluoroborate ([SBP]BF4), is selected as a new additive for pure ZnSO4electrolyte. It is found that this additive could regulate the solvation sheath of hydrated Zn2+ions, promote the ionic mobility of Zn2+, homogenize the flux of Zn2+, avoid side reactions between the electrolyte and electrode, and inhibit the production of zinc dendrites by facilitating the establishment of an inorganic solid electrolyte interphase layer. With the 1% [SBP]BF4-modified electrolyte, the Zn||Zn symmetric cell delivers an extended plating/stripping cycling life of 2000 h at 1 mA cm−2, which is much higher than that of the cell without additives (330 h). As a proof of concept, the Zn‖V2O5battery using the [SBP]BF4additive shows excellent cycling stability, maintaining its specific capacity at 97 mAh g−1after 2000 cycles at 5 A g−1, which is much greater than the 46 mAh g−1capacity of the non-additive battery. This study offers zinc anode stabilization through high-efficiency electrolyte engineering.
研究领域:
材料科学
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电化学
·
能量存储
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产品关联
DOI
高影响因子
Small
·
2022
·Vol. 18
·期 34
·2203964
·
IF 15.153
Peng Zhou,Mingyu Zhang,Liping Wang,Qizhong Huang,Zhean Su,Ping Xu,Renhao Zou,Xiaodong Wang,Cen Zeng,Kaixun Ba
The slow kinetics and poor structural stability prevent transition metal selenides from being widely used in sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). Herein, the “flower-like” porous carbon anchored by Zn-Mn binary selenides (ZMS@FC) composites are fabricated by selenizing the modified hierarchically metal-organic frameworks. The 2D conductive hierarchically flakes’ abundant pore structure and multiple active sites shorten the ion diffusion length and promote conductivity, while the synergistic effect of the binary metals and intrinsic large pseudocapacitive contribution effectively improve capacity and rate performance. ZMS@FC composites exhibit impressive rate capability of 294.4 mA h g –1 at 10 A g –1 and excellent cyclic stability with 369.6 mA h g –1 specific capacity retention at 2 A g –1 after 1000 cycling in SIBs. It is noted that 156.9 mA h g –1 can be retained at 5 A g –1 and 227.0 mA h g –1 is remained after 500 cycles at 2 A g –1 in PIBs. The ex situ X-ray diffraction patterns and transmission electron microscopy pictures are used to confirm the conversion reaction processes of the Zn-Mn-Se. Designing high-performance energy storage materials may benefit greatly from the universal synthesis technology of bimetallic sulfide anodes for enhanced SIBs and PIBs.
研究领域:
材料科学
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能量存储
·
纳米技术
·
电化学
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DOI
高影响因子
ADVANCED MATERIALS
·
2021
·Vol. 34
·期 1
·2106897
·
IF 30.849
Jiahui Zhou,Man Xie,Feng Wu,Yang Mei,Yutong Hao,Li Li,Renjie Chen
A 3D host can effectively mitigate the dendritic growth of a zinc (Zn)-metal anode. However, the increased electrode/electrolyte reaction area using the 3D substrate accelerates the passivation and corrosion at the anode interface, ultimately degrading the electrochemical performance. Here, an oriented freezing process is used to create a flexible MXene/graphene scaffold. Based on the abundant zincophilic traits and micropores in the structure, Zn is densely encapsulated inside the host by the electrodeposition process. During cycling, the composite anode endows an in situ solid electrolyte interface with zinc fluoride at the electrode/electrolyte interface due to inherent fluorine terminations in MXene, efficiently inhibiting the dendritic growth. Furthermore, the design wherein bulk Zn is distributed in a 3D microscale manner suppresses hydrogen evolution reactions (3.8 mmol h −1 cm −2 ) and passivation, through in/ex situ tests. As a result, in a symmetrical cell test, the electrode has a long-cycling life of over 1000 h at 10 mA cm −2 . After continuous single folding followed by double folding, a quasi-solid-state foldable cell with the composite anode and a LiMn 2 O 4 cathode (60% depth of discharge) maintains high-capacity retention of over 91%. This research presents a revolutionary encapsulating idea for aqueous Zn-ion batteries, as well as foldable investigation.
研究领域:
材料科学
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电化学
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储能技术
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DOI
高影响因子
Materials Reports: Energy
·
2025
·
IF 13.8
Bo Xiang,Jinxiang Peng,Qi Lai,Pengchen Wang,Yangfeng Cui,Mingjie Wu,Yunhai Zhu,Yingkui Yang
Aqueous Zinc-metal batteries (AZBs) hold great promise for energy storage applications, yet their practical deployment is hindered by challenges such as dendrite formation and parasitic side reactions at the Zn anode. Herein, we developed a three-dimensional Cu-coated flexible host via an electroless plating strategy on cotton cloth (Cu@CT). This design effectively homogenizes the local current density, spatially regulates Zn-ion flux, and accommodates substantial volume changes during cycling. Additionally, the zincophilic Cu coating facilitates Zn nucleation and deposition by forming Cu–Zn alloys, which reduce the Zn nucleation overpotential and promote uniform Zn plating. As a result, the Cu@CT based anode exhibits highly reversible Zn plating/stripping behavior with an average Coulombic efficiency of 99.58% over 800 cycles, accompanied by low polarization and dendrite-free behavior. Moreover, the Zn–I 2 full cell demonstrates excellent rate capability, delivering a discharge capacity of 114 mAh g −1 at 10 A g −1 , along with stable long-term cycling performance over 950 cycles. The electroless plating strategy may represent a promising pathway for advancing high-performance AZBs.
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产品关联
DOI
高影响因子
Nanoscale
·
2025
·Vol. 17
·期 25
·15289-15300
·
IF 5.1
Yan Xin,Yunnian Ge,Ming Lei,Shen Cai,Chen Zhao,Huai Zhang,Huajun Tian
Zn powder anodes hold great promise for aqueous zinc-ion batteries (AZIBs) owing to their structural tunability, facile processability, and cost-effectiveness. However, their practical application is hindered by severe side reactions and uncontrolled dendrite formation, leading to rapid capacity degradation. Herein, we develop a Zn powder-based anode (ZnSn@ZP) with a Zn–Sn metal interface layer, fabricated via a simple electrodeposition strategy, to achieve uniform Zn deposition/stripping. The dense Zn–Sn interphase layer effectively mitigates anode corrosion, regulates nucleation, and suppresses dendritic growth, leading to remarkable electrochemical performance. The symmetric ZnSn@ZP cell exhibits exceptional cycling stability exceeding 1500 h at 1 mA cm−2 with an initial voltage hysteresis of 16.4 mV. The ZnSn@ZP//Cu asymmetric cell demonstrates superior average coulombic efficiency of 99.6% over 2500 cycles, indicating improved Zn deposition/stripping performance. Furthermore, the full cell assembled with the MnO2 cathode exhibits excellent cycling performance, maintaining stable cycling for 1800 cycles even at 1 A g−1 with negligible capacity decay. This work presents an effective, cost-effective and scalable interface engineering strategy, offering new insights for developing high-stability Zn powder-based anodes.
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Xu Liu,Qingxin Ma,Jiahui Wang,Qigang Han,Chunguo Liu
Because of their low cost, safety, and green nature, aqueous Zn-ion batteries are promising candidates for energy storage. However, the appearance of Zn dendrites, hydrogen evolution reaction (HER), and corrosion limit the development of the aqueous Zn-ion batteries. Here, inspired by fibrous cartilage, a biomimetic poly(vinylidene fluoride) (PVDF)-based composite polymer coating layer, including aramid nanofiber (ANF) and zinc trifluoromethanesulfonate [Zn(CF3SO3)2], called ANFZ, was designed and fabricated. The high ionic conductivity (3.84 mS cm–1) of the flexible PVDF matrix, optimized by Zn(CF3SO3)2, combined with the highly mechanical ANF network can effectively guide the rate of Zn stripping/plating, homogenize the Zn2+ distribution, and suppress the dendrites. In addition, the high Coulombic efficiency is obtained due to the suppression of HER and corrosion by the biomimetic coating layer. Symmetric ANFZ@Zn//ANFZ@Zn can steadily work over 1000 h at 1 mA cm–2 with a high degree of reversibility, which is greater than that of bare Zn//bare Zn. Furthermore, the ANFZ@Zn//MVO batteries show a high specific capacity (400.2 mAh g–1, 0.1 A g–1) and a long cycle life. This work presents a novel method combined with bionics for designing and assembling Zn anodes without dendrites for zinc-ion batteries.
研究领域:
材料科学
·
电化学
·
储能技术
·
电池技术
·
纳米技术
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Huan Liu,Hong Deng,Shanshan Liu,Yuhang Hou,Shouyue Wang,Shengyu Liang,Taiding Xu,Qian Shen,Sheng Li,Jingxia Qiu
Aqueous zinc-ion batteries (AZIBs) have emerged as one of the most promising energy storage technologies due to their high safety and cost-effectiveness. However, several challenges associated with the Zn metal anode, such as dendrite growth, corrosion, and hydrogen evolution reaction (HER), have hindered further applications of AZIBs. Herein, maltose (MT) is used as a functional electrolyte additive to protect the Zn metal electrode during the interface deposition process. The additive can effectively affect the interface of Zn metal, suppressing HER and corrosion reactions. Moreover, it facilitates the uniform deposition of Zn by inducing Zn2+ to form a stable (100) crystal plane. As a result, the symmetric cell exhibited stable cycling performance for 2000 h at a current density of 2 mA cm–2, and the Zn||NH4V4O10 full cell maintained steady cycling for 1000 cycles at 2 A g–1. This study provides an approach to achieve uniform Zn deposition through additives.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Mengyue Liu,Hao Tian,Zhuang Jiang,Yong Gao,Zhenwen Yu,Ruize Xu,Kun Chang
Achieving long-term stable zinc anodes at high currents and capacities remains a great challenge for practical aqueous alkaline zinc-nickel batteries. Herein, we construct a coordination-gradient interphase by integrating a carboxyl-functional carbon shell with spatially graded Zn 2 + binding affinity. The resulting interphase exhibits a stratified distribution of oxygen-containing groups, establishing a directional pathway for Zn 2 + transport. This gradient structure suppresses hydrogen evolution and passivation by preserving ZnO lattice integrity, while simultaneously regulating the electric field and Zn 2 + flux to promote uniform deposition and inhibit dendrite growth under demanding operating conditions. As a result, the coordinated-gradient Zn anode enables stable cycling for over 900 h in a Zn||Zn symmetric cell at 5 mA cm − 2 with negligible polarization, which outperforms most previously reported modified Zn anodes in alkaline electrolytes. The proposed gradient interphase design is scalable, and a high-performance Zn-Ni full battery with high mass loading (50 mg cm − 2 ) is also demonstrated, delivering an areal capacity of 17 mAh cm − 2 at 80 mA cm − 2 and retaining nearly full capacity over 9000 cycles with a Coulombic efficiency of 92%.
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DOI
高影响因子
Advanced Science
·
2022
·Vol. 9
·期 7
·2104832
·
IF 17.521
Yu Hao,Doudou Feng,Lei Hou,Tianyu Li,Yucong Jiao,Peiyi Wu
Zinc (Zn) metal anode has been widely evaluated in aqueous Zn batteries. Nevertheless, the dendrite formation issue and consecutive side reactions severely impede the practical applications of Zn metal at high current densities. Herein, it is reported that engineering the gel electrolyte with multifunctional charged groups by incorporating a zwitterionic gel poly(3-(1-vinyl-3-imidazolio) propanesulfonate) (PVIPS) can effectively address the abovementioned issues. The charged groups of sulfonate and imidazole in the gel electrolyte can texture the Zn 2+ nucleation and deposition plane to (002), which possesses a high activation energy to resist side reactions and induce uniform growth of Zn metal for a dendrite-free structure. In addition, the Zn 2+ solvation structure can be manipulated by the charged groups to further eliminate side reactions for high rate performance Zn batteries. Consequently, the polyzwitterionic gel electrolyte enables a stable cycling with a cumulative capacity of 3000 mA h cm −2 at high density of 7.5 mA cm −2 for the symmetrical Zn battery, and a long-term cycling life for more than 1000 cycles at 5 C of Zn/MnO 2 full battery. It is envisioned that the design of the gel electrolyte will provide promising feasibility on safe, flexible, and wearable energy storage devices.
研究领域:
材料科学
·
电化学
·
储能技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）