Article
Thermodynamics
Lei Xian, Zhengyan Li, Shuchang Li, Lei Chen, Wen-Quan Tao
Summary: The impact of water content and temperature on the thermal conductivity of Nafion membranes was investigated using molecular dynamics simulations. The study reveals that water content mainly positively affects thermal conductivity due to the triple effect of hydrogen bonding, stronger microphase separation, and decreased chain torsion. The study also emphasizes the crucial paths in which hydrogen bonding improves interchain heat transport. Temperature has little and slightly negative effects on thermal conductivity at low and high hydration levels, respectively, due to the influence on hydrogen bonding network and bridging effect. This study expands the design basis of high temperature polymer electrolyte membranes.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Materials Science, Multidisciplinary
Ze-peng Ming, You-hong Liu, Zhen-yuan Wu, Xiao-Wang Zhao, Zhi-Hui Li
Summary: This article investigates the distribution of droplet and crystal in space engine plume flow research. The study establishes a Gibbs phase calculation method to understand the H2O phase change threshold. It explores the effects of various factors, including vapor transitional temperature, vapor rotational temperature, phase change surface temperature, and space characteristic length, on the threshold. The research finds that phase change is more difficult for non-continuum vapor compared to continuum vapor. Additionally, under thermal equilibrium, the saturated phase change boundary for H2O shifts towards lower temperatures with lower vapor number density.
Article
Psychology, Multidisciplinary
Xu Guang, Liu Shan, Zhang Xue, Haiyan Yang
Summary: Negative workplace gossip has a significant negative impact on workplace prosocial behavior, and perceived collective psychological ownership mediates between negative workplace gossip and workplace prosocial behavior. Social efficacy moderates the negative relationship between negative workplace gossip and perceived collective psychological ownership.
CURRENT PSYCHOLOGY
(2023)
Article
Energy & Fuels
S. R. Mahmoodi, M. Mayer, R. S. Besser
Summary: This paper introduces a gas-assisted thermal bonding (GATB) technique for constructing fuel cells with high specific power density, demonstrated using thin polymethylmethacrylate (PMMA) substrates.
Article
Crystallography
Saman Nimali Gunasekara, Camila Barreneche, A. Ines Fernandez, Alejandro Calderon, Rebecca Ravotti, Alenka Ristic, Peter Weinberger, Halime Omur Paksoy, Burcu Kocak, Christoph Rathgeber, Justin Ningwei Chiu, Anastasia Stamatiou
Summary: Thermal Energy Storage Materials (TESMs) show great potential in realizing a carbon neutral future. They are mainly classified into phase change materials (PCMs), thermochemical heat storage materials (TCMs), and sensible thermal energy storage materials (STESMs), each with different advantages and characteristics. Research in TESMs is primarily concentrated in countries such as China, the European Union, and the USA, but there are still obstacles to commercialization and application.
Article
Chemistry, Multidisciplinary
Shyambo Chatterjee, Oghenetega Allen Obewhere, Ehsan Zamani, Rajesh Keloth, Seefat Farzin, Martha D. Morton, Anandakumar Sarella, Shudipto Konika Dishari
Summary: In this study, a new class of polystyrene-based ionomers with sub-nanometer-sized, sulfonated macrocyclic calix[4]arene-based pendants (PS-calix) was reported. The conductivity of the PS-calix film was found to be 13 times higher than that of the state-of-the-art ionomer, Nafion. PS-calix also showed improved proton conductivity when interfacing with Pt nanoparticles, indicating its potential in catalyst ink. The sub-nanometer-sized calix[4]arene cavities in PS-calix created unique water/ion transport pathways, resulting in faster water diffusion compared to bulk water and water confined in Nafion films.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Taipu Chen, Bo Lv, Shucheng Sun, Jinkai Hao, Zhigang Shao
Summary: A novel composite membrane fabricated from g-C3N4 and Nafion was developed for steam electrolysis, exhibiting excellent performance and high proton conductivity at high temperatures. Compared with previous studies, this approach achieves better electrolytic behavior with a relatively low catalyst loading.
Article
Ophthalmology
Hanan Makhdoum, Yahya Alzahrani
Summary: This case study presents a successful treatment of a pediatric case with combined hamartoma of the retina and retinal pigment epithelium (CHR-RPE) using pars plana vitrectomy (PPV), membrane peeling, and internal limiting membrane (ILM) peeling. Adding ILM peeling to the surgical treatment of CHR-RPE with epiretinal membrane may lead to a favorable outcome in this rare tumor.
SAUDI JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Engineering, Environmental
Jiahui Huang, Xianwu Huang, Peiyi Wu
Summary: A new multilayer MXene initiator is reported in this study, which can generate hydroxyl radical species and initiate the polymerization of a series of vinyl monomers. This initiator can crosslink with cationic monomers to form high-quality composite hydrogels, displaying high elasticity, conductivity, and self-healing performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Faqing Cao, Baohu Wu, Tianyu Li, Shengtong Sun, Yucong Jiao, Peiyi Wu
Summary: The study addressed the issue of Zn dendrite growth in liquid electrolytes by using a mechanoadaptive cellulose nanofibril-based morphing gel electrolyte, which improved the stability and cycle life of Zn-ion batteries at high current densities.
Article
Multidisciplinary Sciences
Jiqiang Wang, Baohu Wu, Peng Wei, Shengtong Sun, Peiyi Wu
Summary: Inspired by the repairable nanofibrous structure of human skin, the authors have engineered a fatigue-resistant artificial ionic skin toughened by self-healable elastic nanomesh, providing opportunities for designing durable ion-conducting materials with skin-like properties.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Huai Xiang, Xiaoxia Li, Baohu Wu, Shengtong Sun, Peiyi Wu
Summary: A highly damping ionic elastomer with energy-dissipating nanophases embedded in an elastic matrix is introduced, which has excellent properties and can be used for sensing and protecting applications in soft electronics and robotics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhilong Tian, Lei Hou, Doudou Feng, Peiyi Wu, Yucong Jiao
Summary: In this study, a lithium bond enriched polymer gel (PAEV) was designed to achieve polymer electrolytes with adjustable ionic conductivity and tunable mechanical properties. The electrolyte showed enhanced capacity and performance in lithium-ion batteries at different temperatures.
Article
Chemistry, Multidisciplinary
Lei Peng, Lei Hou, Peiyi Wu
Summary: Photonic ionic elastomers (PIEs) with multiple signal outputs are challenging to fabricate with mechanical robustness, good ionic conductivity, and brilliant structure color. This study introduces the synergistic effect of lithium and hydrogen bonds into a PIE, leading to enhanced mechanical strength and toughness. The PIEs also exhibit synchronous electrical and optical output under mechanical strains and extraordinary stability under extreme conditions. This work offers a promising molecular engineering route for high-performance photonic ionic conductors in advanced ionotronic applications.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haiyan Qiao, Shengtong Sun, Peiyi Wu
Summary: Humans use periodically ridged fingertips for precise perception of object characteristics through ion-based mechanotransduction. Designing artificial ionic skins with similar tactile capabilities is challenging due to the contradiction between compliance and pressure sensing. Inspired by the hierarchical structure of fingertips, an aesthetic ionic skin with periodic stiff ridges embedded in a soft hydrogel matrix is developed, enabling strain-undisturbed pressure sensing and texture recognition. This approach can inspire the design of high-performance ionic tactile sensors for soft robotics and prosthetics.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhen Meng, Yucong Jiao, Peiyi Wu
Summary: A polyzwitterion protective layer (PZIL) was developed to prevent dendrite formation and side reactions on zinc anode, improving the safety and stability of zinc ion batteries. The PZIL adsorbs onto the zinc metal, inhibiting side reactions, and chelates with zinc ions to regulate solvation structure. Additionally, the Hofmeister effect enhances interfacial contact during electrochemical characterization. The symmetrical zinc battery with PZIL exhibited stable performance for over 1000 hours at an ultra-high current density of 40 mA cm(-2).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Wei Zhao, Zhouyue Lei, Peiyi Wu
Summary: Converting building and environment heat into electricity is a promising strategy for energy harvest. However, typical thermoelectric materials face challenges in outdoor building systems due to processing difficulties, mechanical brittleness, and low environmental tolerance. This research explores a concept based on synergistic ionic associations to improve the mechanical properties and harsh environment stability of ionic-type thermoelectric gels. These gels demonstrate high stretchability, self-healing ability, temperature insensitivity, and water-proof performance, and can be applied to various surfaces. They also exhibit remarkable thermal and humidity stability, and can generate significant thermovoltage even on cloudy days.
Article
Chemistry, Multidisciplinary
Hongbo Wan, Baohu Wu, Lei Hou, Peiyi Wu
Summary: This study reports the fabrication of amphibious polymer materials with outstanding mechanical performances. By utilizing multi-scale nanostructures, a composite of polyvinyl alcohol/poly(2-methoxyethylacrylate) (PVA/PMEA) was prepared, which demonstrated excellent stability and high mechanical strength in both hydrated and dehydrated states. This research provides a promising route for constructing high-performance polymer materials for complex load-bearing environments.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhouyue Lei, Peiyi Wu
Summary: Stretchable hydrogels have been developed to interact with biological interfaces, but lack the intelligence of biological systems. To overcome this limitation, researchers have developed asymmetric trimeric hydrogels inspired by biological ion channels. These hydrogels can sense external stimuli, encode logical responses, emulate synaptic plasticity, and even memorize images in a multistore model. Moreover, they are transparent, stretchable, and work stably under large deformation, overcoming the limitations of conventional electronic devices. This bionic design opens up possibilities for intelligent hydrogel ionotronics and bridges the gap between human-machine interfaces.
Article
Chemistry, Multidisciplinary
Jiahui Huang, Xianwu Huang, Peiyi Wu
Summary: A multifunctional MXene nanocomposite hydrogel is reported, which can be readily prepared and processed via the fast gelation of a cationic monomer initiated by delaminated MXene sheets. The resulting nanocomposites are ultrastretchable, three-dimensional printable, and show outstanding mechanical and electrical self-healing properties. The integration of these multifunctional systems onto various substrates through 3D printing demonstrates great prospects as smart flexible electronics.
Article
Chemistry, Multidisciplinary
Jiahui Huang, Zhenchuan Yu, Peiyi Wu
Summary: Shaping soft and conductive materials through 3D printing drives innovation in various applications, such as robotic counterparts that emulate biological systems. A tricomponent ionogel-based ink design is reported in this study, which addresses the challenges of printability and synergy among ink components. This ink design strategy greatly extends material choice and provides valuable guidance in constructing diverse artificial systems by 3D printing.
Article
Chemistry, Multidisciplinary
Doudou Feng, Yucong Jiao, Peiyi Wu
Summary: In this study, a polymeric acid hydrogel electrolyte was fabricated for high performance Zn/polyaniline batteries. The electrolyte showed high cycling stability and high discharge capacity in a wide temperature range, making it a promising candidate for advanced aqueous batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Polymer Science
Lei Hou, Pei-yi Wu
Summary: 2Dcos is an advanced analysis method that holds great advantages in the field of polymers. It can effectively identify fine structures and dynamic mechanisms within polymer systems, thus improving the analysis results.
ACTA POLYMERICA SINICA
(2022)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
