CORROSION SCIENCE
·
2021
·
IF 7.205
Dongdong Zhang,Feng Peng,Jiajun Qiu,Ji Tan,Xianming Zhang,Shuhan Chen,Shi Qian,Xuanyong Liu
Herein, a novel smart chemical strategy for regulating the corrosion reaction to reinforce the plasma electrolytic oxidation (PEO) coating on magnesium by amorphous MnOOH is proposed. The MnOOH film could provide PEO coating with both physical shielding and chemical active healing abilities. During corrosion process, MnOOH spontaneously reacts with the corrosion-produced Mg 2+ and OH – to form layered double hydroxides , resulting in high improvement of the long-term anti-corrosion of PEO coating. Moreover, the PEO/MnOOH coating presented a certain self-healing ability for scratches, and could be used for repairing corrosion defects on further coated films.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
Journal of Advanced Ceramics
·
2021
·Vol. 10
·期 6
·1389-1397
·
IF 6.707
Wang Yinghua,Ma Zhuang,Liu Ling,Liu Yanbo
During flight, many silicates (sand, dust, debris, fly ash, etc.) are ingested by an engine. They melt at high operating temperatures on the surface of thermal barrier coatings (TBCs) to form calcium-magnesium-aluminum-silicate (CMAS) amorphous settling. CMAS corrodes TBCs and causes many problems, such as composition segregation, degradation, cracking, and disbanding. As a new generation of TBC candidate materials, rare-earth zirconates (such as Sm 2 Zr 2 O 7 ) have good CMAS resistance properties. The reaction products of Sm 2 Zr 2 O 7 and CMAS and their subsequent changes were studied by the reaction of Sm 2 Zr 2 O 7 and excess CMAS at 1350 °C. After 1 h of reaction, Sm 2 Zr 2 O 7 powders were not completely corroded. The reaction products were Sm-apatite and c-ZrO 2 solid solution. After 4 h of reaction, all Sm 2 Zr 2 O 7 powders were completely corroded. After 24 h of reaction, Sm-apatite disappeared, and the c-ZrO 2 solid solution remained.
研究领域:
材料科学
·
航空工程
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Wei-jia Song,Jia-xin Wang,Peng-cheng Tang,Qing-peng Bao,Li-li Du,Peng-fei Wang,Zhe Gong,Fa-nian Shi,Min Zhu
The aqueous zinc ion batteries have attracted wide attention due to their advantages of high safety, high energy density and low cost. However, the dendrite problem on the anode has restricted its development due to the existence of potential safety hazards. Constructing micro-gully morphology on anode is regarded as an effective method to suppress dendrite growth because it can induce the uniform deposition of zinc ions. Therefore, the wave-like structure was in situ etched on zinc anode (Bi-Zn) by a mixture of bismuth nitrate and acetic acid based on atomization method. The unique wave-like structure provides more active sites for the deposition of zinc ions, enabling them to deposit uniformly on the anode surface. Meanwhile, due to its relatively high standard electrode potential, Bi hardly reacts with other substances and exhibits good corrosion resistance. As a result, the Bi-Zn symmetric battery exhibits excellent cycling performance and can cycle stably for 1000 h at 4 mA cm −2 and 1 mAh cm −2 . In short, commencing with the optimization of the anode structure, this study successfully inhibited the formation of dendrites and the occurrence of corrosion reactions, and improved the performance and cycling stability of the battery. It is of positive significance for its development in the field of energy storage.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
CORROSION SCIENCE
·
2024
·
IF 7.4
Xin-Ran Li,Xian-Ze Meng,Qiu-Yu Huang,Jian Wang,Yu-Yua Xiao,Lian-Kui Wu,Fa-He Cao
Metal corrosion exhibits coupled multi-reaction features, making it challenging to quantitatively study the dissolution reaction with variable-valent cations, particularly in valence quantification. This work develops a novel scanning electrochemical microscopy mode and applies it to Ti dissolution study in acidic fluorides. This mode identifies the potential-dependent corrosion reactions and quantifies the valence evolution of Ti from HER to transpassive regions. Results provide direct electrochemical evidence for soluble Ti( z ≤3), for the first time, and revise the reported dissolution equation. The proposed mode overcomes the drawbacks of macro-electrochemical analysis based on coupling information and provides an effective quantitation method for anodic reactions .
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 22
·2208230
·
IF 19
Shengzhao Zhang,Minghui Ye,Yufei Zhang,Yongchao Tang,Xiaoqing Liu,Cheng Chao Li
Despite the merits of high specific capacity, low cost, and high safety, the practical application of aqueous Zn metal batteries (AZMBs) is plagued by the dendritic growth and corrosion reaction of Zn metal anodes. To solve these issues, a Zn 3 (PO 4 ) 2 ·4H 2 O protective layer is in-situ constructed on Zn foil (Zn@ZnPO) by a simple hydrothermal method, avoiding the traditional slurry-casting process. The insulating and conformable ZnPO layer improves the wettability of Zn@ZnPO and aqueous electrolyte via decreasing the contact angle to 11.7 o . Compared with bare Zn, the Zn@ZnPO possesses a lower desolvation activation energy of 35.25 kJ mol -1 , indicating that the ZnPO fasters the desolvation of hydrated Zn 2+ ions and thereby ameliorates their transport dynamics. Micro-morphology and structural characterization show that there are no dendrites forming on the post-cycling Zn@ZnPO anodes, and the interfacial ZnPO layer remains almost identical before and after cycles. It can be explained that the electrochemically stable ZnPO layer acts as an ionic modulator to enable the homogeneous distribution of Zn 2+ ions, inhibiting the growth of Zn dendrites. Benefiting from these advantages, the Zn@ZnPO based symmetric and full cells deliver highly reversible Zn plating/stripping behavior and long cycling lifespans.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 36
·12869-12877
·
IF 4
Chaowei Li,Wenhui Wang,Shizhuo Liu,Jingchao Zhang,Xiangtao Kong,Zehao Li,Daojun Zhang,Jimin Du,Yagang Yao
Aqueous rechargeable zinc ion batteries (ARZIBs) are ideal for massive and longstanding energy storage applications because of their excellent security and low operation cost. Nevertheless, ARZIBs are subject to the severe corrosion reaction of zinc metal anodes that is derived from the thermodynamic unsteadiness of the zinc anodes in aqueous solution, as well as zinc dendrite growth originating from uncontrolled zinc deposition. Herein, we created a separator by coating a thin piece of polypropylene (PP) with a compound consisting of zinc trifluoromethanesulfonate [Zn(OTf)2] and poly(vinylidene fluoride-hexafluoropropylene (PVDF-HFP). Consequently, the severe corrosion reaction of the zinc metal anodes and the profuse formation of zinc dendrites were effectively mitigated by the novel PP separator, which prolonged the lifetime of the zinc metal anodes. When a zinc metal plating layer was used with preferential (002) crystallographic orientation, the cyclic performance over 1100 h of the symmetrical Zn∥Zn battery based on the novel separator was steady. Additionally, the Zn∥MnO2 batteries exhibited an impressive specific capacity and competitive long durability of 75.5% over 500 cycles at a current density of 0.1 A g−1. With this work, we intend to set the standard for designing novel separators in the construction of advanced zinc anodes for high-performance ARZIBs.
研究领域:
材料科学
·
电化学
·
能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2023
·
IF 20.4
Zhenye Liang,Chao Li,Daxian Zuo,Lin Zeng,Tong Ling,Jiajia Han,Jiayu Wan
Rechargeable aqueous Zn batteries (RAZBs) are promising for energy storage systems as they are intrinsically safe, cost-effective and environmentally friendly. However, undesired dendrites and corrosion side reactions worsen at cycling, which limit the reversibility and scalable application of RAZBs. This issue arises from the undesired side reactions from corrosion of Zn in regular aqueous electrolytes, which lead to formation of side products, nonuniform Zn nucleation, finally dendrite formation. Here, we report nitrilotriacetic acid (NTA) as a highly efficient functional additive that can preferentially adsorbs on Zn surface, avoiding the direct contact between Zn and water molecules and significantly alleviating corrosion. This clean, protected Zn surface can thus promote uniform Zn plating/stripping. Furthermore, the adsorbed NTA molecules can attract water molecules to facilitate the desolvation of Zn 2+ and promote Zn 2+ fast transport, as verified both experimentally and computationally. Notably, we found that only a trace amount of NTA (0.15 wt%) is sufficient to form a stable electrode/electrolyte interface, reducing the corrosion rate from 3.63 mA cm −2 to merely 0.22 mA cm −2 . This stable interface enabled highly reversible Zn stripping/plating at 5 mA cm −2 and 0.5 mAh cm −2 in symmetric cells, lasting about 2100 h. An outstanding average Coulombic efficiency of 99.40 % in 800 cycles was also achieved. This study provides new insights into realizing highly reversible Zn anodes for RAZBs via the addition of highly efficient, multifunctional electrolyte additive , whose design principle may be generalized to many rechargeable battery systems.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Congyuan Wang,Jingjing Jiao,Jiaxuan Dai,Lu Yu,Qibing Chen,Xiangyu Xie,Xiaoping Yang,Gang Sui
The progress of zinc (Zn) metal batteries (ZMBs) is greatly limited by poor cycling stability because of the mutual restrictions of dendrite growth, corrosion reactions, and passivation. In this work, an ultra-long lifespan (∼7800 h), dendrite-free Zn metal anode is enabled via fabricating a functional hydrogel electrolyte out of polyacrylamide/graphene oxide (GO)/agarose (PGA) with a multifully cross-linked network. The synergetic integration of GO nanosheets and double-network structure endows the PGA hydrogel electrolyte with high ionic conductivity and excellent mechanical performance. More importantly, the abundant hydrophilic groups and stable three-dimensional cross-linked network of PGA electrolyte effectively constrain Zn 2+ diffusion laterally along the Zn surface, which simultaneously prohibits water-induced corrosion and thus significantly enhances Zn anode reversibility. Both theoretical simulations and experiments reveal that the PGA electrolyte is capable of optimizing de-solvation kinetics and harmonizing Zn 2+ flux at the electrolyte–electrode interface, ensuring uniform Zn 2+ deposition. Consequently, an ultra-long lifespan of 7800 h is achieved in the symmetric cell with the PGA electrolyte. Even at a high Zn utilization of 42.7 %, it still delivers stable cycling over 1100 h. This work provides a practical and beneficial approach to dramatically extending the lifespan of the Zn anode and thus achieving high-performance ZMBs.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Ke Wang,Ting-Ting Su,Chang-You Shao,Wen-Feng Ren,Run-Cang Sun
Dendrite growth, hydrogen evolution, and corrosion reactions of zinc (Zn) metal anodes deteriorate the cyclic performance and hinder the commercial application of high-safety aqueous Zn-ion batteries. Herein, a hydroxyl-rich starch (SS) layer is rationally constructed on Zn anodes (Zn@SS) through a facile coating process to tune the Zn electroplating homogeneity and reduce adverse reactions with the electrolyte. SS layers with strong chelating ability can in situ coordinate with Zn2+ ions within the aqueous electrolyte and form ionic conductive gels, which can decrease the contact area, facilitate ion transportation from the ZnSO4 electrolyte to the metallic Zn anodes, and regulate the plating behavior for Zn2+ ions. Zn@SS symmetrical cells show a prolonged circulation of 3000 h at 2 mA cm–2. Even at a large charge/discharge depth of 5 mAh cm–2, Zn@SS symmetric cells can provide a long lifetime of 1000 h. Zn@SS-V2O5 full cells can operate for 1000 cycles at 1 A g–1. This article offers a novel approach for the surface protection of Zn metal anodes through the construction of dynamic ionic conductive gel layers and widens the applied field of renewable and biodegradable starch-based biomass materials.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Nano Energy
·
2022
·
IF 19.069
Ning Dong,Xuesong Zhao,Mengdie Yan,Hong Li,Huilin Pan
Intrinsic uneven Zn deposition-dissolution and hydrogen evolution reaction (HER) induce poor reversibility and limited cycle life of Zn anodes, which thus restrict the practical application of rechargeable aqueous Zn batteries . In this work, a synergistic strategy of porous indium (In) coating layer combined with a polyacrylamide (PAM) polymer layer for Zn anodes is proposed to provide large HER overpotential while facilitating fast and homogeneous Zn 2+ transport at the electrode-electrolyte interface. The corrosion reaction and Zn dendrite growth are simultaneously prevented at high utilization of Zn anodes. The optimal ZnIn-PAM electrodes demonstrate outstanding cycling stability at ultra-high current density and areal capacity (10 mA cm −2 , 10 mAh cm −2 , Zn utilization: 57%) for over 400 h, and long-term lifespan for over 1700 h at 5 mA cm −2 and 5 mAh cm −2 (Zn utilization: 28.5%) with only ∼50 mV overpotential. Coupled with electrolytic manganese dioxide cathode, the full cell delivers ultra-long lifespan of 10000 cycles with capacity decay rate of 0.006% per cycle at 5 C. This work provides useful perspective for exploring synergetic strategies to address the limited cycling stability of Zn metal-based aqueous batteries for practical use.
研究领域:
材料科学
·
电化学
·
能源存储
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）