JOURNAL OF HAZARDOUS MATERIALS
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2022
·
IF 14.224
Jiayan Wu,Jieyu Liu,Pingxiao Wu,Leiye Sun,Meiqing Chen,Zhongbo Shang,Quanyun Ye,Nengwu Zhu
The ubiquitous Al 2 O 3 is anticipated to interact with nanoplastics , affecting their fate and transport in aquatic environments. In this study, the heteroaggregation and deposition behaviors of polystyrene nanoplastics (PSNPs) on Al 2 O 3 were systematically investigated under different conditions (ionic strength, pH, and natural organic matter). The results showed that significant heteroaggregation occurred between PSNPs and Al 2 O 3 particles under acidic and neutral conditions. When the NaCl concentration was increased from 50 to 500 mM, the heteroaggregation ratio gradually increased. However, poly (acrylic acid) (PAA) inhibited the heteroaggregation of PSNPs-Al 2 O 3 due to steric repulsion. The deposition of PSNPs on Al 2 O 3 surfaces was inhibited as the NaCl concentration or pH values increased. Due to charge reversal and steric repulsion, humic acid (HA) and fulvic acid (FA) prevented the deposition of PSNPs onto Al 2 O 3 surfaces, and the former was more effective in reducing the deposition rate . The interaction mechanism between PSNPs and Al 2 O 3 was revealed by using various characterization techniques and density function theory (DFT) calculation. The results demonstrated that in addition to the dominant electrostatic interaction, there were also weak hydrogen bonds and van der Waals interactions. Our research is of great significance for predicting the migration and fate of PSNPs in aquatic environments.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
Materials
·
2022
·Vol. 15
·期 3
·855
·
IF 3.748
Bate Bate,Chao Chen,Pengfei Liu,Chen Zhou,Xiao Chen,Shaokai Nie,Kexin Chen,Yunmin Chen,Shuai Zhang
The pick-up, migration, deposition, and clogging behaviors of fine particles are ubiquitous in many engineering applications, including contaminant remediation. Deposition and clogging are detrimental to the efficiency of environmental remediation, and their mechanisms are yet to be elucidated. Two-dimensional microfluidic models were developed to simulate the pore structure of porous media with unified particle sizes in this study. Kaolin and bentonite suspensions were introduced to microfluidic chips to observe their particle deposition and clogging behaviors. Interactions between interparticle forces and particle velocity profiles were investigated via computational fluid dynamics and discrete element method simulations. The results showed that (1) only the velocity vector toward the micropillars and drag forces in the reverse direction were prone to deposition; (2) due to the negligible weight of particles, the Stokes number implied that inertia was not the controlling factor causing deposition; and (3) the salinity of the carrying fluid increased the bentonite deposition because of the shrinkage of the diffused electrical double layer and an increase in aggregation force, whereas it had little effect on kaolin deposition.
研究领域:
环境科学
·
计算流体力学
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颗粒动力学
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2023
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IF 9.2
Qi Zhang,Lei Yan,Lei Fan,Yi Jin,Xin-Lin Zhang,Yan-Yun Sun
All-solid-state lithium battery (ALLSB) with organic/inorganic composite solid-state electrolyte (CSSE) is one of the candidates for future energy storage due to the high specific energy and safety. However, large impedances and incompatibilities at the rigid electrode/electrolyte and internal interfaces of CSSE remain stumbling blocks for the spread of ASSLB. Acrylamide (AM)-contained (3-methacrylamidopropyl) triethoxysilane (MTS) is incorporated into CSSE to optimize the interfaces and modulate the ion diffusion and deposition behaviors based on the in-situ synergy effects of coupling/crosslinking and hydrogen bonding . Multiple hydrogen bonds between CSSEs and polar AM groups construct diverse Li interactions and facilitate dissociation and diffusion of Li. Coupling/crosslinking effect of the MTS can in-situ rearrange the above diversified Li environment. In turn, hydrogen bonds strengthen the coupling effect to the interface. The synergistic function contributes to favorable interfacial compatibility and stability, establishing a fast ion transport channel in the ASSLB. The MTS-intervened CSSE exhibits superior electrochemical and thermal properties. Li symmetric cells with this functional CSSE demonstrate stable lithium deposition/extraction for up to 2000 h. Moreover, the Li|LiFePO 4 battery retains 91.7 % of its capacity after 500 cycles. This in-situ synergistic regulation provides a rational and simple guide for enhancing interface stability in CSSE and ASSLB.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 36
·19536-19545
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IF 11.9
Gege Wang,Feifan Zhang,Caiyu Ma,Jianhua Yang,Xiaowei Chi,Yu Liu
Aqueous zinc metal batteries (AZMBs) as one of the next-generation energy storage technologies have attracted both academic and industrial attention due to their high safety, low cost, and high specific energy, yet are facing interfacial challenges at the electrolyte/anode interface, e.g. uneven physical diffusion of Zn2+ flux, severe chemical corrosion, and disordered electrochemical deposition behavior of the zinc metal anode. To address these issues, herein, we propose a facile and effective electrolyte modulating strategy to construct a physico-chemo-electrochemically coupled stable interface between the aqueous electrolyte and zinc anode. The aqueous electrolyte modified using a tiny amount of water-soluble ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4) can form a positively charged organic EMIM+ adsorption layer and a protective inorganic Zn2+-conducting layer through the in situ decomposition of BF4− on the zinc anode surface, thus effectively homogenizing the Zn2+ diffusion flux and decreasing the chemical corrosion rate. Moreover, EMIM+ provides an electrostatic shielding layer, leading to the preferential and ordered electrodeposition of Zn2+ along the Zn (002). Benefiting from this physico-chemo-electrochemically multifunctional interfacial layer, the Zn//Zn symmetric cells achieve a considerably extended lifespan of up to 1200 h at 5 mA cm−2 and 5 mA h cm−2, and more than 450 h even at an ultrahigh current density and large deposition capacity (10 mA cm−2 and 10 mA h cm−2). Zn//Cu asymmetric cells also exhibit excellent reversibility with a high coulombic efficiency of 99.75%. Furthermore, the physically, chemically, and electrochemically stabilized interface enables the AZMB with a quinone-based cathode to offer high specific capacity (256.9 mA h g−1) and a decent capacity retention rate (83.9% after 300 cycles).
研究领域:
电化学
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能源材料
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界面科学
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储能技术
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材料化学
✓ 已验证
DOI
高影响因子
Small
·
2023
·Vol. 20
·期 17
·2308632
·
IF 13.3
Shunlong Ju,Qing Qiao,Tian Xu,Zhongchen Zhao,Tengfei Zhang,Guanglin Xia,Xuebin Yu
Constructing robust anode with strong aluminophilicity and rapid desolvation kinetics is essential for achieving high utilization, long-term durability, and superior rate performance in Al metal-based energy storage, yet remains largely unexplored. Herein, molybdenum nanoparticles embedded onto nitrogen-doped graphene (Mo@NG) are designed and prepared as Al host to regulate the deposition behavior and achieve homogeneous Al plating/stripping. The monodispersed Mo nanoparticles reduce the desolvation energy barrier and promote the deposition kinetics of Al. Additionally, Mo nanoparticles act as aluminophilic nucleation sites to minimize the Al nucleation overpotential, further guiding uniform and dense Al deposition. As a result, the dual-functional Mo@NG endows Al anodes with low voltage hysteresis, reversible Al plating/stripping with high coulombic efficiency, and excellent high-rate capability under 5 mA cm −2 . Moreover, the as-designed Al metal full batteries deliver a high capacity retention of 92.8% after 3000 cycles at 1 A g −1 . This work provides an effective solution to optimize the electrochemical properties of Al metal anode from the perspective of desolvation and deposition reactions, towards the development of high-safety and long-cycling aluminum-ion batteries.
研究领域:
材料科学
·
电化学
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能源存储
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纳米技术
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金属负极
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电池化学
·
界面工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Shuzhang Niu,Si-Wei Zhang,Donyang Li,Xin Wang,Xiaomei Chen,Run Shi,Nan Shen,Mengtian Jin,Xian Zhang,Qing Lian,Runqing Huang,Abbas Amini,Yusheng Zhao,Chun Cheng
Constructing a multi-functionally artificial interphase layer is an emerging strategy to possibly address the issues of inhomogeneous Lithium (Li) nucleation and dendrite growth. In this study, a silver@fullerene (Ag@C 60 ) interphase layer with lithiophilic-lithiophobic gradient was designed, which was fabricated by series of deposition of silver and fullerene (Ag@C 60 ) on Cu foam current collector (ACCF). In this way, the typically uncontrolled Li deposition process will become a highly nucleation-guided process, due to the preferentially induced Li nucleation of Ag nanoparticles, which will guide the Li deposition sandwiched in C 60 and Ag layers. While the top lithiophobic fullerene layer is beneficial for regulating uniform Li-ion flux and facilitating the formation of LiF-rich SEI layer, finally suppressing the top deposition of Li metal, due to the high nucleation energy barrier on fullerene. Consequently, Li@ACCF exhibits a low overpotential of 14 mV and an ultra-stable cyclic life for more than 2500 h in symmetric cells. Besides, it also displays excellent long-term cycle life and high-rate performance in lithium-metal full cells. This deliberate design of the “push–pull” Li could ensure the uniform Li deposition sandwiched fullerene and silver layers and provide a feasible and efficient approach to advance the practical use of lithium-metal anodes for high-energy–density batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
界面工程
·
电池技术
✓ 已验证
DOI
高影响因子
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