Review
Materials Science, Multidisciplinary
Rui Liu, Li Liu, Fuhui Wang
Summary: This paper reviewed the corrosion behavior of metals in simulated deep-water environments, discussed the effect of hydrostatic pressure on different corrosion types, and introduced modified coatings to prolong the service life in this environment.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Pengwei Ren, Huimin Meng, Qijun Xia, Ailin Cui, Zhongzheng Zhu, Mingtao He
Summary: The tribocorrosion behavior of Cu-Ni-Zn alloy in deep sea was investigated using in-situ electrochemical controlled tribocorrosion technology. The results showed that the tribocorrosion rate increased with hydrostatic pressure at a rate of 1.05 x 10-5 mm3.N-1.m-1.MPa-1. Hydrostatic pressure had a significant influence on corrosion and tribocorrosion behaviors. Higher hydrostatic pressure accelerated the cathodic reaction and retarded the anodic dissolution process. The passive film at higher hydrostatic pressure exhibited a larger amount of insoluble Cu(I) species (CuCl and Cu2O). On the other hand, increasing hydrostatic pressure resulted in a decrease in adhesive wear and an aggravation of abrasive and delamination wear. The increment in mechanical wear with hydrostatic pressure was the determining factor for the tribocorrosion of Cu-Ni-Zn alloy in deep sea.
Article
Materials Science, Multidisciplinary
Rui Liu, Yushan Song, Yu Cui, Fandi Meng, Li Liu, Fuhui Wang
Summary: Early corrosion of Ni-Cr-Mo-V high strength steel under hydrostatic pressure and tensile stress was investigated. The results show that plastic deformation has a double effect: increasing anodic current and damaging the corrosion film. This synergism between plastic deformation and hydrostatic pressure further promotes the corrosion of Ni-Cr-Mo-V alloy.
Article
Materials Science, Multidisciplinary
Yushan Song, Rui Liu, Yu Cui, Fandi Meng, Li Liu, Fuhui Wang
Summary: The rust development on Ni-Cr-Mo-V high strength steel under hydrostatic pressure and tensile stress was investigated. The deposition influenced by hydrostatic pressure and tensile stress showed two periods: during the first stage of immersion, both hydrostatic pressure and tensile stress controlled the deposition of corrosion products, such as Cr3+; during the later stage of immersion, only hydrostatic pressure contributed to the growth of rust, leading to the formation of an inner rust layer with numerous cracks; thus, the rust layer formed under the simulated deep-sea environment offered worse protection, containing a significant amount of beta-FeOOH and Fe3O4.
Article
Biology
Jie Chen, Honghui Zeng, Wenqi Lv, Ning Sun, Cheng Wang, Wenjie Xu, Mingliang Hu, Xiaoni Gan, Lisheng He, Shunping He, Chengchi Fang
Summary: High hydrostatic pressure, low temperature, and scarce food supply are the major limiting factors for vertebrate survival in extreme deep-sea environments. A high-quality genome of the deep-sea Muddy arrowtooth eel was constructed to explore the genetic basis underlying adaptation to deep-sea biomes. The genome analysis revealed genes involved in cytoskeleton stability, cell membrane fluidity, DNA integrity, transcription ability at low temperatures, and energy metabolism in a food-limited environment.
SCIENCE CHINA-LIFE SCIENCES
(2023)
Article
Chemistry, Physical
Federico Aulenta, Enza Palma, Ugo Marzocchi, Carolina Cruz Viggi, Simona Rossetti, Alberto Scoma
Summary: By testing the oil-spill snorkel system, it was found that it can enhance the biodegradation of petroleum hydrocarbons in deep-sea sediments, reduce sulfide concentration, and regenerate sulfate. This approach is crucial for petroleum decontamination in the deep sea environment characterized by low metabolic activity.
Article
Microbiology
An-Qi Li, Wei-Jia Zhang, Xue-Gong Li, Xu-Chong Bao, Xiao-Qing Qi, Long-Fei Wu, Douglas H. Bartlett
Summary: In this study, the deep-sea bacterium Photobacterium profundum SS9 was found to exhibit a more pronounced piezophilic phenotype when grown in minimal medium supplemented with glucose than in a complex medium. The intracellular ATP level varied with pressure, but with opposite trends in the two culture media. The ATPase systems encoded in SS9, ATPase-I and ATPase-II, showed different abundances and functions in response to pressure and culture media.
Article
Chemistry, Applied
Fandi Meng, Li Liu, Erhai Liu, Hongpeng Zheng, Rui Liu, Yu Cui, Fuhui Wang
Summary: The study found that in a deep-sea fluid-pressure environment, fluid flow and pressure can cause premature corrosion of the coated steel, along with detachment of polymer pieces from the coating surface and large areas of blistering. These phenomena are attributed to the release of internal stress at coating defects under the synergistic effects of fluid and pressure.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Engineering, Mechanical
Shunyu Yin, Zheng Jia, Xinge Li, Jiakai Zhu, Yi Xu, Tiefeng Li
Summary: We demonstrate a machine learning-accelerated design method for devising miniature pressure vessels for vulnerable electronic components in deep-sea soft robots. This design method is roughly seven orders of magnitude faster than traditional methods and greatly enhances the reliability of deep-sea soft robots.
EXTREME MECHANICS LETTERS
(2022)
Article
Engineering, Environmental
Junfeng Chen, Wenjie Zhao
Summary: In this study, a novel silk fibroin-Ti3C2Tx (SF-Ti3C2Tx) hybrid nanofiller was synthesized and added to waterborne epoxy coating to enhance its anti-corrosion ability, especially in simulated deep sea environments. The rough surface of SF-Ti3C2Tx nanosheets, excellent compatibility with the resin matrix, and ability to fill inherent defects of the coating contribute to the improved corrosion protection.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Zhen Gan, Cheng Zhang, Zhan-Rong Zhang, Zheng-Jie Chen, Lin Liu
Summary: The study found that in the crystallization-dependent transition of corrosion resistance of an Fe-based bulk metallic glass, corrosion resistance remains almost unaffected when the crystallized volume fracture is below 30%, but decreases significantly when above 30%, with stable pitting induced by micro galvanic effects dominating the corrosion behavior.
Article
Biochemistry & Molecular Biology
Hao Chen, Minxiao Wang, Mengna Li, Chao Lian, Li Zhou, Xin Zhang, Huan Zhang, Zhaoshan Zhong, Hao Wang, Lei Cao, Chaolun Li
Summary: This study investigated the potential influence of depressurization on Bathymodiolinae hosts and their methanotrophic symbionts, revealing massive DNA fragmentation in symbionts but certain tolerance in host cells. The study highlights the distinct stress responses of Bathymodiolinae holobionts against depressurization and emphasizes the necessity of using isobaric sampling methods in deep-sea research.
Article
Nanoscience & Nanotechnology
Weiya Tan, Wenjie Zhao
Summary: WS2@Ti3C2Tx heterojunction nanohybrid was synthesized by electrostatic self-assembly, effectively suppressing the restacking of Ti3C2Tx MXene and improving the stability and anticorrosion performance of the composite coating.
MATERIALS TODAY NANO
(2022)
Article
Zoology
M. E. Gerringer, A. S. Dias, A. A. von Hagel, J. W. Orr, A. P. Summers, S. Farina
Summary: Using micro-CT scanning, the study revealed reductions in skeletal structure of snailfishes at different depths. Changes in bone length, width, density, and other parameters varied across different depth ranges.
FRONTIERS IN ZOOLOGY
(2021)
Article
Engineering, Ocean
Guangping Liu, Yongping Jin, Youduo Peng, Wenbo Tang, Buyan Wan
Summary: A new self-locking seal structure has been developed for reliable high-pressure sealing in the full ocean depth environment, and its excellent sealing performance has been verified through experiments.
APPLIED OCEAN RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yinghao Wu, Tian-Yu Sun, Tianhao Ge, Wenjie Zhao, Liang-Feng Huang
Summary: The authors propose a rapid processing method to accurately heal various structural defects on graphene coatings, enhancing defect healing efficiency and accuracy through the self-assembly of hydrophobic molecules and microscopic factors.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yan Sun, Chongyi Chen, Fengmin Zhang, Shaowei Jiang, Peter J. Stang
Summary: Metallacage-based macroscopic films were used as functional units for assembling film-containing smart emissive devices. Introducing various luminescent molecules into hydrogels enabled the mimicking and optimization of emission systems, resulting in tunable luminescence of thermo-responsive hydrogel devices by combining metallacage-based films with other fluorescent molecules in the polymeric network.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Polymer Science
Kai Li, Zheng Li, Yong Shen, Xiaohui Fu, Chongyi Chen, Zhibo Li
Summary: The nucleophilicity of initiators for ROP of NCA was enhanced by the organobase TMG, leading to rapid polymerization and controlled molecular weights of polypeptides. This method simplifies NCA ROP, allows for the synthesis of block copolypeptides and expands the applications of synthetic polypeptides in various fields.
Article
Polymer Science
Hailin Fu, Ryan Baumgartner, Ziyuan Song, Chongyi Chen, Jianjun Cheng, Yao Lin
Summary: This article introduces a simple kinetic model to describe the cooperativity in covalent polymerizations. By treating the growing polymer chain as both a cooperative system and a primitive enzyme, and incorporating a Michaelis-Menten-like equation, the model accurately describes the binding of monomers to the polymer chain. The application of this model can help polymer chemists discover similar cooperative mechanisms in nonpolypeptide systems and utilize them to create covalent analogues of natural cooperative systems.
Article
Polymer Science
Yali Liu, Chuanzhuang Zhao, Chongyi Chen
Summary: There is a difference in the UCST behavior between chiral and racemic polypeptides, with chiral polypeptides undergoing a phase transition due to the formation of intramolecular hydrogen bonds and protrusion of side chains. The UCST behavior of polypeptides can be designed by regulating the content of side chains, and chiral polypeptides exhibit excellent biodegradability.
Article
Chemistry, Physical
Wenchao Xu, Yi Nan, Yijie Jin, Xinran Chen, Manqing Xie, Chongyi Chen, Chuanzhuang Zhao
Summary: An ultrastretchable, pH-tunable, surface-adaptive, and salt-resistant hydrogel adhesive with stable adhesion on biointerfaces is reported. It exhibits enhanced adhesion in acidic environments and maintains its strength in saline environments, making it a promising candidate for surgical patches and motion sensors in wet, acidic, and dynamic environments.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Leyi Yang, Guanbing Zhou, Yijie Jin, Yan Sun, Qiao Liu, Chongyi Chen
Summary: This research develops a hydrogel electrolyte that can stabilize water at extremely low temperatures, inspired by the antifreeze mechanism of antifreeze proteins. The hydrogel exhibits excellent flexibility, high ionic conductivity, and strong adhesion to various surfaces, making it suitable for electronic devices in cold climates.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Mechanical
Yinghao Wu, Wenchao Zhao, Xiaojing Ci, Wenjie Zhao
Summary: In this study, hexagonal boron nitride nanoplates (BNNP) and nanospheres (BNNS) were modified and incorporated into epoxy composite coatings, resulting in excellent friction reduction and anti-wear effects. The "ball effect" of BNNS provided rolling friction, while the layer-structured debris exhibited good lubricating properties. Therefore, modified boron nitride nanospheres have broad application prospects.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Article
Chemistry, Physical
Yufan Chen, Yinghao Wu, Wenjie Zhao
Summary: In this study, carbon fiber was used as a filler to reinforce the epoxy resin coating. Ti3C2Tx nanosheets were chemically grafted onto carbon fiber to enhance the interface adhesion and compatibility between carbon fiber and epoxy resin, resulting in improved mechanical strength and erosion wear resistance of the composite coating.
Article
Biochemistry & Molecular Biology
Mei Gao, Yali Liu, Chuanzhuang Zhao, Chongyi Chen
Summary: In this study, the phase separation behavior of polypeptides was investigated by synthesizing a series of polypeptides with tailorable hydroxyl-containing side chains. It was found that the secondary structure of polypeptides can be modulated by the local chemical environment and content of side chains. The different helical contents of these polypeptides exhibited marked differences in the cloud point temperature and the width of hysteresis. The recovery rate of the alpha-helical structure was found to govern the width of hysteresis.
Article
Nanoscience & Nanotechnology
Minglong Yan, Wenjuan Liu, Xijian Lan, Teng Li, Wenjie Zhao
Summary: This study focuses on the stimulated growth characteristics and microstructural regulation methods of the wax layers. It is found that the wax layers have the ability to change their surface micromorphology under stimuli and can self-heal and strengthen after being stimulated by injury.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qingyuan Zhao, Wenjie Zhao, Yinghao Wu
Summary: The limited interfacial combination between carbon fiber (CF) and polymer matrix greatly restricts the protective capability of carbon fiber reinforced polymer coatings (CFRPCs), especially in severe ocean environments. In order to enhance the interface compatibility and strength, a bi-functional metal-organic framework called the cerium-imidazole framework (Ce-MI) was constructed on the CFs surface. The CF@Ce-MI/EP coating displayed impressive impermeability and anti-corrosion performance, and the interfaces of fiber/epoxy adhered firmly.
Article
Chemistry, Physical
Xinjun Wu, Xin Guan, Shushu Chen, Jiangpeng Jia, Chongyi Chen, Jiawei Zhang, Chuanzhuang Zhao
Summary: This research presents a novel shape memory hydrogel with a remodelable permanent shape and programmable cold-induced shape recovery behavior. The hydrogel is prepared using specific treatment methods to achieve shape fixation by heating and shape recovery by cooling. Additionally, deformable devices can be obtained by assembling hydrogel blocks with different concentrations.
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
