Article
Chemistry, Multidisciplinary
Zhi-Kang Wang, Ming-Hao Du, Pierre Braunstein, Jian-Ping Lang
Summary: A cut-to-link strategy is proposed to generate high-nuclearity assemblies of low-dimensional metal sulfides, which can contribute to the development of optical materials and models of enzyme active centers. The approach demonstrates the highest non-linear optical absorption coefficient among discrete cluster-based materials reported so far.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Long-Sheng Wang, Yue Wang, Chun-Lin Lv, Chao Guo, Fang-Yuan Xing, Yu-Jia Dong, Zheng Xie, Shu-Yun Zhou, Yong-Ge Wei
Summary: In this study, we employed a strategy of substituting addenda atoms of polyoxometalates (POMs) to obtain a class of polyoxomolybdovanadates with tunable third-order nonlinear optical (NLO) properties. Among these compounds, V8Mo1 showed the best nonlinear absorption performance and could be doped into organically modified silica gel glasses to exhibit exceptional broadband optical limiting (OL) properties.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Martha Sosa-Rivadeneyra, Aranzazu Zavala, Juan Francisco Rivas-Silva, Diana Uriza-Prias, Sylvain Bernes
Summary: The crystal structure of a new form of L-tryptophan, called α', was discovered. It features a smaller unit cell compared to the previously known α form. The structural modification observed in α' is responsible for the observed polymorphism, leading to a blue-shift in the π->π* transition.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Physics, Applied
Bibo Zhong, Jinying Zhu
Summary: Third-order elastic constants (TOEC) are crucial in nonlinear material characterization, but measuring them is laborious and prone to large error margins. This study experimentally determined TOEC of an aluminum sample and showed that the thermal modulation test is a potential method for accurately measuring TOEC and absolute acoustic nonlinearity parameters.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Garima Shukla, Sajal K. Paul
Summary: This work presents the realization of an electronically tunable third-order quadrature oscillator (TOQO) that provides multiple output signals with controllable amplitudes. The proposed circuit also serves as an arbitrary phase shift generator and generates amplitude modulation signals without affecting the condition and frequency of oscillation. It exhibits low phase error, low THD, low phase noise, low sensitivity, and low power consumption, while also showing robustness against component tolerances and PVT variations.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Chemistry, Multidisciplinary
Jingcheng Du, Li Chen, Cailong Zhou, Wei Zhou, Huizhen Shen, Xinjuan Zeng, Peizhang Zhou, Luxi Tan, Lichun Dong
Summary: The stable Zr-UiO-67 is prepared by introducing a fluorine-containing layer on its surface through a polymeric network assisted post-synthetic modification (PSM) strategy. The MOFs exhibit superlyophobic behavior towards liquids with a surface tension threshold of over 48 mN m(-1), making them a potential choice for separating various liquid-liquid mixtures and emulsions due to the protective layer improving their stability in acidic, alkaline, and saline environments.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Shu-Jin Bao, Ze-Ming Xu, Zhi-Wen Huang, Tian-Chen Yu, Meng-Yi Wang, Ying-Lin Song, Zheng Niu, Brendan F. Abrahams, Jian-Ping Lang
Summary: A stepwise assembly-amplification strategy is proposed to enhance the NLO responses of metal sulfide clusters. By incorporating the assembled clusters into PVA and forming composite membranes, the effective nonlinear absorption coefficients are significantly increased. This work provides a new approach to amplify NLO responses and promote the development of photonic devices.
SCIENCE CHINA-MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Binrong Li, Zhiwei Guo, Yonghai Feng, Minjia Meng, Yunxiang Pan, Yingping Zhang
Summary: In this study, a layered heterojunction of polymeric carbon nitride (PCN) with heptazine/triazine and fluorine/potassium (F/K) dual sites (FKHTCN) was constructed to enhance the photocatalytic production of hydrogen peroxide (H2O2). The introduction of F/K not only improved the charge separation efficiency but also optimized the adsorption of oxygen molecules and intermediate *OOH during H2O2 production. The FKHTCN exhibited a significantly higher H2O2 production rate (15 times higher than PCN) and showed potential for practical applications in environmental remediation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Mathematics
Feliz Minhos, Rui Carapinha
Summary: This paper improves existing results by presenting weaker sufficient conditions for solving a third-order impulsive problem on the half-line with generalized impulse effects. The method uses truncation and perturbed techniques, as well as equiconvergence at infinity and impulsive points. An application to a boundary layer flow problem over a stretching sheet with and without heat transfer is included in the last section.
MATHEMATICAL MODELLING AND ANALYSIS
(2021)
Article
Physics, Multidisciplinary
V. Y. Y. Cheung, H. M. Yin, J. H. Li, K. W. Chow
Summary: The Hirota equation, an 'integrable' system with third order dispersion, exhibits modulation instability in plane waves due to the interplay of dispersion and nonlinearity. Conventional analysis fails to explain finite amplitude disturbances and suffers from indefinite growth. To address these limitations, we examine exact doubly periodic solutions expressed using Jacobi elliptic functions. Wavy profiles at the minima of intensity are interpreted as finite amplitude disturbances on a plane wave background. The profiles are amplified and saturate at the maxima of intensity, representing an 'unconventional' or 'extraordinary' modulation instability. Floquet analysis is conducted to investigate the stability of the periodic patterns.
Article
Materials Science, Multidisciplinary
Shu-Yan Wang, Xiao-Juan Zhen, Zhan-Zu Feng, Ming-Jun Xiao, Shi-Ji Li, Wen Shang, Yi-Fan Huang, Qiang Wang, Hao-Li Zhang
Summary: This study evaluates the performance of tin sulfide in a simulated space radiation environment. The results show that tin sulfide maintains its strong saturable absorption even under high dose gamma radiation. This research provides guidance for the rational design and screening of space radiation-tolerant nonlinear optical materials.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Optics
Thiago D. S. De Menezes, Chaoran Tu, Valentin Besse, Maurice O'Sullivan, Vladimir S. Grigoryan, Curtis R. Menyuk, Ivan T. Lima
Summary: This study investigates the robustness of a nonlinear frequency-division multiplexing (NFDM) system based on the Zakharov-Shabat spectral problem (ZSSP). The study focuses on analyzing the impact of various fiber impairments on the system's performance, including third-order dispersion, the Raman effect, amplified spontaneous emission (ASE) noise, and fiber losses with lumped gain. The results show that the maximum launch power is limited by these impairments, with fiber losses being the most significant factor.
Article
Materials Science, Multidisciplinary
Zakaniaina Rajaofara, Philippe Leproux, Marc Dussauze, Alessandro Tonello, Vincent Rodriguez, Lara Karam, Hideaki Kano, Jean-Rene Duclere, Vincent Couderc
Summary: Multiplex coherent anti-stokes Raman scattering (M-CARS) and second harmonic generation (SHG) techniques were used to map the nonlinear optical susceptibility of a thermally microimprinted niobium borophosphate glass. The study revealed a systematic reduction in the nonresonant third order nonlinear susceptibility in poled areas, possibly due to sodium depletion. This reduction in susceptibility was linked to a decrease in matter density and linear refractive index in the poled regions.
OPTICAL MATERIALS EXPRESS
(2021)
Article
Optics
Yueqiu Hu, Yang Gao, Yuejia Shi, Guanghao Rui, Jun He, Yiping Cui, Bing Gu
Summary: The spatial self-phase modulation (SSPM) effect is extensively utilized in characterizing 2D nanomaterials, with the narrow rings and wide rings in SSPM patterns identified as originating from optical Kerr nonlinearity (OKN) and thermally induced nonlinearity (TIN), respectively. This study offers an efficient approach to distinguish OKN from TIN in 2D nanomaterial dispersions and extract nonlinear optical parameters.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Tianlun Li, Rui Hao, Yaping Hou, Duorui Gao, Yunfan Xu, Yanpeng Zhang, Jixiang Fang, Lei Zhang
Summary: A chemically synthesized spherical-like MoS2 nanoparticle with favorable third-order and suppressed second-order nonlinear optical response is found to have isotropy induced by the geometrical uniformity of nanoparticles and an artificial symmetry center. The third harmonic signal linewidth is broadened due to the self-phase modulation effect, and the intensity of harmonic signal can be conveniently adjusted by controlling the polarization state of applied optical field. The artificially designed material morphology may provide a reference for designing all-optical modulation devices.
ANNALEN DER PHYSIK
(2023)
Article
Chemistry, Multidisciplinary
Qin Zhu, Shuoqi Zhang, Jing Ma, Jun Zhu, Shuhua Li, Guixiang Zeng
Summary: The transfer hydrogenation of azobenzene with ammonia borane mediated by pincer bismuth complex 1 was studied using density functional theory calculations. The study revealed an unusual metal-ligand cooperation mechanism involving the saturation/regeneration of the C=N functional group on the pincer ligand. The reaction proceeds through the hydrogenation of the C=N bond, followed by the conversion of 3(CN) to a Bi-H intermediate, and eventually results in the production of N,N'-diphenylhydrazine and regeneration of the catalyst. The substitution of the phenyl group with a tert-butyl group on the pincer ligand improves the catalyst's performance.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Review
Chemistry, Physical
Qiang Zhu, Yang Ge, Wei Li, Jing Ma
Summary: Polarization is important in charged and hydrogen bonding systems. Efforts have been made to incorporate polarization into force fields at different levels, employing physics-based, quantum mechanism-based, and machine learning-assisted models. Limitations of computational cost and transferability have been addressed through QM-based approaches. Variable electrostatic parameters can be used to reduce computational cost while maintaining accuracy. The effects of polarization and entropy on the prediction of partition coefficient are demonstrated using molecular dynamics simulations and machine learning models. Directions and challenges for future development are discussed.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Multidisciplinary
Yan Xiong, Bang Li, Yuming Gu, Tong Yan, Zhigang Ni, Shuhua Li, Jing-Lin Zuo, Jing Ma, Zhong Jin
Summary: We report the synthesis of a zinc-based coordination polymer that contains bridging dinitrogen anionic ligands, which shows high efficiency as a photocatalyst for nitrogen fixation under ambient conditions. Experimental and theoretical studies reveal that the active sites in the polymer promote the formation of NH3 and sustain continuous catalytic cycles. This work presents an example of a molecular active site embedded within a coordination polymer for mild nitrogen fixation.
Article
Multidisciplinary Sciences
Si-Wen Ke, Wei Li, Yuming Gu, Jian Su, Yifan Liu, Shuai Yuan, Jing-Lin Zuo, Jing Ma, Ping He
Summary: In this study, bifunctional cathode catalysts for ORR/OER were constructed in a COF platform by incorporating Ni-bis(dithiolene) and Co-porphyrin units. The resulting bimetallic Ni/Co-COF exhibited high surface area, good electrical conductivity, and excellent chemical stability. Li-O2 batteries with the Ni/Co-COF-based cathode showed low discharge/charge potential gap and stable cycling, comparable to PtAu nanocrystals. DFT computations and control experiments revealed the critical role of Ni and Co sites in regulating the Li2O2 deposition.
Article
Chemistry, Physical
Lulu Fu, Ranran Wang, Qiang Zhu, Yuming Gu, Lifeng Zheng, Yuan Chen, Juli Jiang, Jing Ma
Summary: Chirality is found everywhere in nature, from DNA double helix to biological macromolecules, snail shells, and galaxies. However, controlling chirality at the nanoscale is challenging due to the complex structure of supramolecular assemblies, small energy differences between enantiomers, and difficulties in obtaining polymorphic crystals. In this study, the planar chirality of water-soluble pillar[5]arenes was rationalized by molecular dynamics simulations and quantum chemical calculations. The researchers used machine learning to predict the chirality of different host-guest complexes with high accuracy.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Physical
Fangyuan Wang, Yuming Gu, Bailin Tian, Yuxia Sun, Lifeng Zheng, Shengtang Liu, Lingyu Tang, Xiao Han, Jing Ma, Mengning Ding
Summary: Replacing the oxygen evolution reaction (OER) with water-assisted oxidation of organic molecules is a promising approach for sustainable electrochemical biomass utilization. In this study, spinel sulfides were investigated for the electrooxidation of furfural and 5-hydroxymethylfurfural, showing superior catalytic performance compared to spinel oxides. The phase transition of spinel sulfides into amorphous bimetallic oxyhydroxides during electrochemical activation was found to be responsible for their excellent conversion rate, selectivity, faradaic efficiency, and stability. A volcano-like correlation was also established between their BEOR and OER activities.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Kun Fan, Jian Li, Yongshan Xu, Cheng Fu, Yuan Chen, Chenyang Zhang, Guoqun Zhang, Jing Ma, Tianyou Zhai, Chengliang Wang
Summary: This study reports the synthesis of a three-dimensional coordination polymer with atomically precise structures. The material exhibits high conductivity and has potential applications as cathodes in sodium-ion batteries with high capacity, rate capability, and cyclability.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Yanrong Wang, Caixing Wang, Wei Wang, Yu Zhang, Zhaowei Guo, Jianhang Huang, Lei Yan, Jing Ma, Yonggang Wang
Summary: This study demonstrates the capability of an organic quinone compound, dibenzo[b,i]thianthrene-5,7,12,14-tetraone (DTT), to store H3O+ in an acid electrolyte with high capacity and long-term cycling stability. The DTT-based battery shows promising stability and performance, even at low temperatures.
ACS ENERGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Ming-Feng Qin, Li-Feng Zheng, Song-Song Bao, Fei-Hu Xue, Jing Ma, Li-Min Zheng, Jian Su
Summary: Three mixed-ligand metal phosphonates were constructed, and the chains in these compounds could be dispersed in water by adjusting the pH, forming interwoven nanostrands/nanosheets. The photothermal effect was observed for these compounds both in solid state and in HEPES solution upon 808 nm laser irradiation, and CoCo showed the highest photothermal conversion efficiency. Theoretical calculations revealed the important role of cobalt(II) ion in extending pi-electron delocalization and enhancing NIR absorption in CoCo.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Yang Ge, Xueping Wang, Qiang Zhu, Yuqin Yang, Hao Dong, Jing Ma
Summary: This study proposes a machine learning-guided adaptive parametrization method that develops a mixed atomic and coarse-grained model to precisely regulate the peptide self-assembly. The method significantly reduces computational costs while maintaining qualitative agreement with observed morphologies in experiments.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Chemistry, Multidisciplinary
Jia-Ge Jia, Chen-Chen Zhao, Yi-Fan Wei, Zhi-Min Zhai, Song-Song Bao, Allan J. Jacobson, Jing Ma, Li-Min Zheng
Summary: Controlling the formation and chirality of artificial systems, especially coordination polymers, is a challenging task. In this study, solvents were used as a tool to induce the formation of macroscopic helices with controllable chirality in chiral coordination polymers. The morphology of the self-assemblies could be manipulated by varying the cosolvent in water, resulting in twisted ribbons, needle-like crystals, nanofibers, and superhelices. Interestingly, the helicity of the superhelix could be controlled by using different propanol isomers in water.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Yi Hu, Junchuan Liang, Yuming Gu, Songyuan Yang, Wenjun Zhang, Zuoxiu Tie, Jing Ma, Zhong Jin
Summary: A new method for the preparation of two-dimensional bismuthene nanoflakes, along with their protection and application in electrochemical CO2 reduction, is proposed in this study. The method involves the use of a h-BN covering layer to suppress structural transformations and charge transfer, resulting in improved thermal stability and electrocatalytic performance. This research is of significant importance for the synthesis and utilization of high surface energy two-dimensional materials.
Article
Materials Science, Multidisciplinary
Zhiyuan Wei, Zihao Guan, Fang Liu, Yanyan Xue, Naying Shan, Yang Zhao, Lulu Fu, Zhipeng Huang, Jun Xu, Mark G. Humphrey, Chi Zhang
Summary: This study constructed covalently linked nanocomposites composed of graphene oxide (GO) and MoS2, WS2 quantum dots (QDs). These nanocomposites demonstrated significant fluorescence quenching and superior two-photon absorption (TPA) responses, indicating their promising potential in optical limiting applications and ultrafast photonic devices.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Fangyuan Wang, Yuming Gu, Bailin Tian, Yuxia Sun, Lifeng Zheng, Shengtang Liu, Lingyu Tang, Xiao Han, Jing Ma, Mengning Ding
Summary: Replacing the OER with water-assisted oxidation of organic molecules is a promising method for sustainable electrochemical biomass utilization. Spinel sulfides exhibit superior catalytic performance compared to spinel oxides and complete phase transition during electrochemical activation, serving as the active species. Excellent conversion rate, selectivity, faradaic efficiency, and stability were achieved through sulfide-derived amorphous CuCo-oxyhydroxide, and a volcano-like correlation was established between their BEOR and OER activities based on an OER-assisted organic oxidation mechanism.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xin Huang, Xuan Qiu, Wei Wang, Junjie Li, Zhi Li, Xiaomeng Yu, Jing Ma, Yonggang Wang
Summary: Organic electrode materials with tunable structures and sustainability have gained attention. In this study, dibenzo[b,i]phenazine-5,7,12,14-tetrone (DPT) is synthesized as a cathode active material for an aqueous Zn battery, exhibiting high capacity, high-rate performance, and superlong life. Despite DPT's insulative nature, the presence of trace dissolved discharge product DPTx- enables promising performance even with high mass loading and low carbon additives.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
