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| 1 | Design of hierarchical, three-dimensional free-standing single-atom electrode for H2O2 production in acidic media显示文摘Electrochemical reduction of molecular O2 to hydrogen peroxide(H2O2)offers a promising solution for water purification and environmental remediation.Here,we design a hierarchical free-standing single-Co-atom(with Co-N4 coordination)electrode for oxygen reduction reaction(ORR)via a two-electron pathway to make H2O2 in acidic media.The current density of the single-Co-atom electrode reached 51 mA/cm2 at 0.1 V vs reversible hydrogen electrode,lasting for more than 10 hours of continuous operation with H2O2 selectivity greater than 80%.Toward practical application,the single-Co-atom electrode was directly used to assemble an electrochemical cell to produce H2O2 at a rate of 676 mol/kgcat/h with a cell voltage of about 1.6 V. | Jincheng Zhang Hongbin Yang Jiajian Gao Shibo Xi Weizheng Cai Junming Zhang Ping Cui Bin Liu | 2020 | Carbon Energy2020，2，2： | 6 |
| 2 | Engineering self-healing adhesive hydrogels with antioxidant properties for intrauterine adhesion prevention显示文摘Intrauterine adhesion (IUA) is the fibrosis within the uterine cavity. It is the second most common cause of female infertility, significantly affecting women’s physical and mental health. Current treatment strategies fail to provide a satisfactory therapeutic outcome for IUA patients, leaving an enormous challenge for reproductive science. A self-healing adhesive hydrogel with antioxidant properties will be highly helpful in IUA prevention. In this work, we prepare a series of self-healing hydrogels (P10G15, P10G20, and P10G25) with antioxidant and adhesive properties. Those hydrogels exhibit good self-healing properties and can adapt themselves to different structures. They possess good injectability and fit the shape of the human uterus. Moreover, the hydrogels exhibit good tissue adhesiveness, which is desirable for stable retention and therapeutic efficacy. The in vitro experiments using P10G20 show that the adhesive effectively scavenges ABTS+, DPPH, and hydroxyl radicals, rescuing cells from oxidative stress. In addition, P10G20 offers good hemocompatibility and in vitro and in vivo biocompatibility. Furthermore, P10G20 lowers down the in vivo oxidative stress and prevents IUA with less fibrotic tissue and better endometrial regeneration in the animal model. It can effectively downregulate fibrosis-related transforming growth factor beta 1 (TGF-β1) and vascular endothelial growth factor (VEGF). Altogether, these adhesives may be a good alternative for the clinical treatment of intrauterine adhesion. | Luyao Feng Liqun Wang Yao Ma Wanglin Duan Sergio Martin-Saldana Ye Zhu Xianpeng Zhang Bin Zhu Chaowei Li Shibo Hu Mingjie Bao Ting Wang Yuan Zhu Fei Yang Yazhong Bu | 2023 | Bioactive Materials2023，，9： | 3 |
| 3 | Particle motion behavior during gasiication of foam carrier in lost foam-squeeze casting of 20%TiC/ZG270-500 composites显示文摘The particle motion behavior affects the distribution of particles in the metal matrix and finally determines the mechanical properties of the particle reinforced metal-matrix composites. To obtain a uniform distribution of TiC particles and excellent strengthening effect in 20%TiC/ZG270-500 composites fabricated by lost foam-squeeze casting(LFSC), the particle motion behavior in the gas gap and the conditions of the particles getting into the molten steel were investigated. The results show that the airflow velocity(v1) and TiC particle motion velocity(uP) change little with the pouring temperature(TP), increase with an increase in metal filling velocity(vP), ratios of cross sections of in-gate/orifice(AP/A0) and orifice/mould cavity(A0/A1), but the increase trend of u P is more intense. The airflow pressure(P1) changes little with TP and A0/A1, but increases with the increasing of vP and AP/A0. Besides, there is a critical velocity(+|3yLGcosθ/ρpdp|1/2) for the particles getting into the molten steel. The higher the particle motion velocity, the easier the particles get into the molten steel and the more uniform the distribution of the particles in the steel matrix. When TP = 1,873 K, vP = 30 mm·s-1, AP/A0 =10 and A0/A1 = 0.02 in this study, the biggest TiC particle motion velocity(20.59 m·s-1) can be gained, and the steel matrix with the most uniformly distributed TiC particles and fine grains are obtained. | Bin Shibo Xing Shuming Guo Lijun Bao Peiwei | 2013 | China Foundry2013，10，6： | 1 |
| 4 | Tunable light emission from carbon dots by controlling surface defects显示文摘Carbon dots(CDs)are metal-free fluorescent materials that can be used in optical and electronic devices,but few studies have focused on one-step synthesis routes for CDs with tunable color and high photoluminescence quantum yield(PLQY).Herein,CDs with tunable light emission were synthesized using a novel amide-assisted solvothermal approach.The as-prepared CDs were well dispersed and homogeneous,with average diameters of approximately 2.0–4.0 nm,depending on the dopants.Owing to the surface states with different ratios of nitrogen-and oxygen-related species,different CDs can exhibit blue,green,red,or white emission with relatively high PLQYs of 61.6%,41.3%,29.1%and 19.7%,respectively.XPS measurements,in conjunction with DFT calculations,indicate that nitrogen substitution(pyridinic/pyrrolic nitrogen)dominates the blue emission,while introducing oxygen functional groups lowered the LUMO energy level,which resulted in redder emission.In addition,the CDs are demonstrated as a bioimaging probe in both in vitro and in vivo assays,and the white light CDs have been demonstrated to be potential fluorescent materials for white-light-emitting diode(WLED). | Huijun Li Sancan Han Bowen Lyu Ting Hong Shibo Zhi Ling Xu Fengfeng Xue Liman Sai Junhe Yang Xianying Wang Bin He | 2021 | Chinese Chemical Letters2021，32，9： | 1 |
| 5 | Effect of plastic deformation at room temperature on powder re-chrome-boronizing for medium carbon steel 显示文摘 | Bin Xu Le Yang Shibo XING | 2007 | Key Engineering Materials2007，，353358： | 1 |
| 6 | Tactfully revealing the working mechanisms on a tetraarylimidazole derivative:AIE characteristic,ESIPT process and ICT effect integrating in one molecule显示文摘Recently,a novel tetraarylimidazole derivative 2-(benzo[d]thiazol-2-yl)-4-(4,5-bis(4-methoxyphenyl)-1-phenyl-1H-imidazol-2-yl)-phenol(be called MHBT herein)was architectured by our research group showing the fascinating synergy of aggregation-induced emission(AIE)characteristic,excited-state intramolecular proton transfer(ESIPT)mechanism and intramolecular charge transfer(ICT)effect.Nevertheless,a detailed and reasonable interpretation of its mechanisms both in theory is urgently needed.Consequently,to unveil the working mechanism meticulously,herein,we tactfully applied density functional theory(DFT)and time-dependent density functional theory(TD-DFT)methods to illuminate the underlying mechanisms in different solvent conditions.After optimizing the structures,the geometric parameters of hydrogen bonds(HBs),the infrared(IR)vibrational spectrum,the reduced density gradient(RDG)isosurfaces were calculated in detail,vividly explaining how the enhancement of HBs behaved as the driving force to proceed ESIPT process.Simultaneously,the frontier molecular orbitals(FMOs)combined with the potential energy curves(PECs)were conducted to interpretate the role and character of ICT and ESIPT in molecule MHBT.Further,the PECs of MHBT for dihedral angles in different organic solvents were calculated to compare the dominant torsion degree,rationalizing the AIE phenomenon from the view of the restriction of intramolecular rotation process.This work may well underpin the understanding of the interaction between different mechanisms in fluorescent dyes and thereby provide meaningful guideline for the design and construction of ideal molecules. | Min Liu Shibo Zhong Bin Feng Yueming Ren Xiaohui Liu Shuaige Bai Fei Chen Shao Liu Wenbin Zeng | 2023 | Chinese Chemical Letters2023，34，8： | 0 |
| 7 | The exquisite integration of ESIPT, PET and AIE for constructing fluorescent probe for Hg(II) detection and poisoning显示文摘Excessive mercury ions(Hg^(2+)) in the environment can accumulate in human body along with the food chain to cause serious physiological reactions.The fluorescence probes were considered as convenient tool with great potential for Hg^(2+) detection.Most existing probes suffer from aggregation-induced quenching(ACQ) effects and insufficient sensitivity.Herein,a novel type of fluorophore was developed by combining the aggregation-induced emission(AIE) and excited state intramolecular proton transfer(ESIPT) characteristics.Subsequently,a phenyl thioformate group with photoinduced electron transfer(PET)effect was connected to give an efficient 'turn-on' probe(HTM),which exhibited good selectivity toward Hg^(2+),short response time(30 min),coupled with extremely low detection limit(LOD=1.68 nmol/L).In addition,HTM was used successfully in real samples,cells and drug evaluation,underlying the superiority of HTM to detect Hg^(2+) in practical applications. | Xiang Cheng Shuai Huang Qian Lei Fei Chen Fan Zheng Shibo Zhong Xueyan Huang Bin Feng Xueping Feng Wenbin Zeng | 2022 | Chinese Chemical Letters2022，33，4： | 0 |
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