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| 1 | Advances in efficient electrocatalysts based on layered double hydroxides and their derivatives显示文摘The explore and development of electrocatalysts have gained significant attention due to their indispensable status in energy storage and conversion systems, such as fuel cells, metal–air batteries and solar water splitting cells. Layered double hydroxides(LDHs) and their derivatives(e.g., transition metal alloys, oxides, sulfides, nitrides and phosphides) have been adopted as catalysts for various electrochemical reactions, such as oxygen reduction, oxygen evolution, hydrogen evolution, and CO_2 reduction, which show excellent activity and remarkable durability in electrocatalytic process. In this review, the synthesis strategies, structural characters and electrochemical performances for the LDHs and their derivatives are described. In addition, we also discussed the effect of electronic and geometry structures to their electrocatalytic activity. The further development of high-performance electrocatalysts based on LDHs and their derivatives is covered by both a short summary and future outlook from the viewpoint of the material design and practical application. | Lei Zhou Mingfei Shao Min Wei Xue Duan | 2017 | Journal of Energy Chemistry2017，26，6： | 9 |
| 2 | One-step synthesis of Fe-Ni hydroxide nanosheets derived from bimetallic foam for efficient electrocatalytic oxygen evolution and overall water splitting显示文摘The research of superior water oxidation electrodes is essential for the green energy in the form of hydrogen by way of electrolytic water splitting, and still remains challenging. Based upon dealloying foam, Fe-Ni hydroxide nanosheets network structure is designed on the surface of Fe-Ni alloy foam. The ratio of Ni/Fe elements was adjusted to realize the optimal catalytic activities for oxygen evolution reaction(OER) and hydrogen evolution reaction(HER). The obtained electrode of Fe-Ni hydroxide nanosheets/Fe-Ni alloy foam-60% Fe(FN LDH/FNF-60, 60 is the percentage of Fe content) possess low overpotential of 261 mV to reach 10 mA/cm^2, small Tafel slope(85.5 mV/dec), and superior long-term stability(remaining 10 mA/cm^2 for over 14 h without attenuation) toward OER in 1.0 mol/L KOH.Moreover, an alkaline water electrolyzer is constructed with the FN LDH/FNF-60 as anode and Ni(OH)_2/Fe-Ni alloy foam-25% Fe(Ni(OH)_2/FNF-25) as cathode, which displays superior electrolytic performance(affording 10 mA/cm^2 at 1.62 V) and lasting durability. | Lili Zeng Linjing Yang Jia Lu Jin Jia Jiayuan Yu Yunqie Deng Mingfei Shao Weijia Zhou | 2018 | Chinese Chemical Letters2018，29，12： | 7 |
| 3 | Aerosol-assisted submicronγ-Fe2O3/C spheres as a promising heterogeneous Fenton-like catalyst for soil and groundwater remediation:Transport,adsorption and catalytic ability显示文摘This research reports a novel heterogeneous Fenton-like catalyst which could freely move through the model sediments and easily seize the pollutants in addition to efficiently catalyze H2O2,well suitable for soil and groundwater remediation.Herein,submicron y-Fe2O3/C spheres were synthesized through a facile one-step aerosol-based process.In a series of column tests,these spheres exhibit better transport ability due to their optimal size,conforming to the prediction by the Tufenkji-Elimelech filtration theo ry.Meanwhile,y-Fe2O3/C spheres could act as a strong adsorbent for organic pollutants owing to the presence of carbon,thereby providing a driving force to gather contaminants into their vicinity and facilitating the reaction.In addition,immobilization of y-Fe2O3 nanoparticles into carbon spheres protects iron oxides from aggregation,and thus retains the number of active sites for catalytic decomposition of H2O2.Hence,the system containing the as-prepared y-Fe2O3/C spheres and H2O2 shows the high removal efficiency and degradation efficiency in the remediation of recalcitrant organic contaminants such as methylene blue and sulfamethoxazole. | Jingjing Zhan Mingfei Li Xiujuan Zhang Yu An Weiqi Sun Aixia Peng Hao Zhou | 2020 | Chinese Chemical Letters2020，31，3： | 3 |
| 4 | I-V and C-V properties of TiO_2 thin film by pulsed-laser reactive deposition显示文摘TiO-2 thin films have bee deposited on p-Si(111) substrates by pulsed-laser ablation of metallic Ti target in the O-3 ambient. The current-voltage and capacitance-voltage of the Al/TiO-2/Si capacitors are measured. The results show that the dielectric constant of thin film after being annealed at 700℃ is found to be 46, and the border trap density and the interface state density at the TiO-2/p-Si interface are 1.8×10 12 cm -2 and 2×10 12 eV -1·cm -2, respectively. The conduction mechanisms of as-deposited films are also discussed. | FU Zhengwen 1, ZHOU Mingfei 1, ZHANG Shengkun 2,CHEN Lianyao 2 and QIN Qizong 1 1. Laser Chemistry Institute, Fudan University, Shanghai 200433, China 2. Department of Physics, Fudan University, Shanghai 200433, China | 1998 | Chinese Science Bulletin1998，43，16： | 2 |
| 5 | A collinear tandem time-of-flight mass spectrometer for infrared photodissociation spectroscopy of mass-selected ions显示文摘An apparatus based on collinear tandem time-of-flight mass spectrometer has been designed for the measurement of infrared photodissociation spectroscopy of mass-selected ions in the gas phase.The ions from a pulsed laser vaporization supersonic ion source are skimmed and mass separated by a Wiley-McLaren time-of-flight mass spectrometer.The ion of interest is mass selected,decelerated and dissociated by a tunable IR laser.The fragment and parent ions are reaccelerated and mass analyzed by the second time-of-flight mass spectrometer.A simple new assembly integrated with mass gate,deceleration and reacceleration ion optics was designed,which allows us to measure the infrared spectra of mass selected ions with high sensitivity and easy timing synchronization. | WANG GuanJun CHI ChaoXian XING XiaoPeng DING ChuanFan ZHOU MingFei | 2014 | Science China Chemistry2014，57，1： | 2 |
| 6 | On the oxidation states of metal elements in MO-3(M=V,Nb,Ta,Db,Pr,Gd,Pa)anions显示文摘Relativistic quantum chemistry investigations are carried out to tackle the puzzling oxidation state problem in a series of MO_3^- trioxide anions of all d- and f-block elements with five valence electrons. We have shown here that while the oxidation states of V, Nb, Ta, Db, Pa are, as usual, all +V with divalent oxygen O(-II) in MO_3^- anions, the lanthanide elements Pr and Gd cannot adopt such high +V oxidation state in similar trioxide anions. Instead, lanthanide element Gd retains its usual +III oxidation state, while Pr retains a +IV oxidation state, thus forcing oxygen into a non-innocent ligand with an uncommon monovalent radical(O~·) of oxidation state -I. A unique Pr·- ·(O)_3 biradical with highly delocalized unpairing electron density on Pr(IV) and three O atoms is found to be responsible for stabilizing the monovalent-oxygen species in PrO_3^- ion, while GdO_3^- ion is in fact an OGd^+(O_2^(2-)) complex with Gd(III). These results show that a na?ve assignment of oxidation state of a chemical element without electronic structure analysis can lead to erroneous conclusions. | Jing Su Shuxian Hu Wei Huang Mingfei Zhou Jun Li | 2016 | Science China Chemistry2016，59，4： | 2 |
| 7 | Research on Electric Impedance Spectroscopy of Living Cell Suspensions by a Chip with Microelectrodes显示文摘A microfabricated electrical impedance spectroscopy (EIS) chip with microelectrodes was developed.The substrate and the electrodes of the chip were made of glass and gold,respectively.The experimental results demonstrated that the EIS-chip could distinguish different solutions (physiological saline,culture medium,living cell suspension etc.) by scanning from 10Hz to 45kHz.A 6-element circuit model was used for fitting the real part and the imaginary part admittance curves of the living cell suspension.An actual circuit was also built and tested to verify the 6-element circuit model proposed.The micro-EIS chip has several advantages including the use of small sample volumes,high resolution and ease of operation.It shows good application prospects in the areas of cellular electrophysioiogy,drug screening and bio-sensors etc. | Xing Yang Zhaoying Zhou Mingfei Xiao Ying Wu Shangfeng Liu | 2006 | 稀有金属材料与工程2006，35，A03： | 1 |
| 8 | Spectroscopic and theoretical studies of transition metal oxides and dioxygen complexes显示文摘 | GONG Yu ZHOU Mingfei | 2009 | Chem Rev2009，109，12： | 1 |
| 9 | Tin-based composite oxide thin-film electrodes prepared by pulsed laser deposition显示文摘 | Fu Zhengwen Zhou Mingfei | 1999 | Electrochem Soc1999，，146： | 1 |
| 10 | Simultaneous Optimization of Efficiency,Stretchability,and Stability in All-Polymer Solar Cells via Aggregation Control显示文摘With the emergence of Y-series small molecule acceptors,polymerizing the small molecule acceptors with aromatic linker units has attracted significant research attention,which has greatly advanced the photovoltaic performance of all-polymer solar cells.Despite the rapid increase in efficiency,the unique characteristics(e.g.,mechanical stretchability and flexibility)of all-polymer systems were still not thoroughly explored.In this work,we demonstrate an effective approach to simultaneously improve device performance,stability,and mechanical robustness of all-polymer solar cells by properly suppressing the aggregation and crystallization behaviors of polymerized Y-series acceptors.Strikingly,when introducing 50 wt%PYF-IT(a fluorinated version of PY-IT)into the well-known PM6:PY-IT system,the all-polymer devices delivered an impressive photovoltaic efficiency of 16.6%,significantly higher than that of the control binary cell(15.0%).Compared with the two binary systems,the optimal ternary blend exhibits more efficient charge separation and balanced charge transport accompanying with less recombination.Moreover,a high-performance 1.0 cm^(2)large-area device of 15%efficiency was demonstrated for the optimized ternary all-polymer blend,which offered a desirable PCE of 14.5%on flexible substrates and improved mechanical flexibility after bending 1000 cycles.Notably,these are among the best results for 1.0 cm^(2)all-polymer OPVs thus far.This work also heralds a bright future of all-polymer systems for flexible wearable energy-harvesting applications. | Kaihu Xian Kangkang Zhou Mingfei Li Junwei Liu Yaowen Zhang Tao Zhang Yong Cui Wenchao Zhao Chunming Yang Jianhui Hou Yanhou Geng Long Ye | 2023 | Chinese Journal of Chemistry2023，41，2： | 1 |
| 11 | Bilateral atlas laminar hook combined with transarticular screw fixation for an unstable bursting atlantal fracture显示文摘 | Xiang Guo Bin Ni Mingfei Wang Jian Wang Songkai Li Fengjin Zhou | 2009 | Archives of Orthopaedic and Trauma Surgery2009，，9： | 1 |
| 12 | Reactive resonance and the role of electron angular momentum显示文摘Understanding the reaction mechanism at the atomic and molecular level is a central task of chemistry.Within the Born-Oppenheimer approximation,a chemical reaction is envisioned as nuclear dynamics evolving from reactants to products on a potential energy surface(PES).To reveal the detailed mechanistic origin of such an old bond-breaking and new bond-forming process,a measurement of state-to-state differential cross-sections(DCSs)is essential.Its fine structure often serves as a fingerprint to identify quantum dynamics phenomena in a bimolecular reactive encounter.Observation of these fine structures is,however,difficult,because the interference feature may appear in the state-to-state DCSs only with very high angular resolution。 | Mingfei Zhou Kopin Liu | 2021 | The Innovation2021，2，3： | 0 |
| 13 | Are matrix isolated species really “isolated”? Infrared spectroscopic and theoretical studies of noble gas-transition metal oxide complexes显示文摘In this review, we summarize our recent results on matrix isolation infrared spectroscopic studies and theoretical investigations of noble gas-transition metal oxide complexes. The results show that some transition metal oxide species trapped in solid noble gas matrices are chemically coordinated by one or multiple noble gas atoms forming noble gas complexes and, hence, cannot be regarded as isolated species. Noble gas coordination alters the vibrational frequencies as well as the geometric and electronic structures of transition metal oxide species trapped in solid noble gas matrixes. The interactions between noble gas atoms and transition metal oxides involve ion-induced dipole interactions as well as chemical bonding interactions. Periodic trends in the bonding in these noble gas-transition metal complexes are discussed. | ZHAO YanYing & ZHOU MingFei* Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Advanced Materials Laboratory, Fudan University, Shanghai 200433, China | 2010 | Science China Chemistry2010，53，2： | 0 |
| 14 | Refining acceptor aggregation in nonfullerene organic solar cells to achieve high efficiency and superior thermal stability显示文摘With the rapid increase in photoelectric conversion efficiency of organic photovoltaics(OPVs),prolonging the operational lifetime of devices becomes one of the critical prerequisites for commercial applications.Guided by the theoretical calculations of molecular stacking and miscibility,we proposed an effective approach to simultaneously improve device performance and thermal stability of high-efficiency OPVs by refining the aggregation of Y-series acceptors.The key to this approach is deliberately designing an asymmetric Y-series acceptor,named Y6-CNO,which acts as a third component regulator to finely tune the degree of acceptor aggregation and crystallization in the benchmark PM6:Y6-BO system.Strikingly,a champion photovoltaic efficiency of 18.0%was achieved by introducing 15 wt%Y6-CNO into the PM6:Y6-BO system,significantly higher than the control binary cell(16.7%).Moreover,annealing at 100°C for over 1,200 h does not markedly affect the photovoltaic performance of the optimal ternary devices,maintaining above 95%of the initial performance and exhibiting an exceptionally high T_(80)lifetime of 9,000 h under continuous thermal annealing.By contrast,binary devices suffer from excessive crystallization of acceptors with long-term annealing.Additionally,mixing thermodynamics combined with morphological characterizations were employed to elucidate the microstructure-thermal stability relationships.The ternary OPVs consisting of symmetric and asymmetric homologous acceptors form better charge transport channels and can effectively suppress excessive aggregation of acceptors under long-term annealing.This work demonstrates the effectiveness of refining acceptor aggregation via molecular design for highly efficient and stable nonfullerene-based OPVs. | Kaihu Xian Shengnan Zhang Ye Xu Junwei Liu Kangkang Zhou Zhongxiang Peng Mingfei Li Wenchao Zhao Yu Chen Zhuping Fei Jianhui Hou Yanhou Geng Long Ye | 2023 | Science China Chemistry2023，66，1： | 0 |
| 15 | 2 - 20 Reactions of Laser-Ablated Mo and W Atoms with CO in Noble Gas: Infrared spectra on unsaturated metal carbonyls显示文摘 | Wang Yang Fan Fangli Zhang Qingnan Chen Mohua Zhou Mingfei Qin Zhi | 2013 | IMP & HIRFL Annual Report2013，，1： | 0 |
| 16 | Tunability Analysis of Fabry-Perot Cavity in Micro Optical Electromechanical System显示文摘 | Wei Mingfei Yang Fang Ji Qichun Zhou Junni Wen Hao | 2012 | 光学学报2012，32，F12： | 0 |
| 17 | Layered Double Hydroxides for Oxygen Evolution Reaction towards Efficient Hydrogen Generation显示文摘Electrochemical water splitting is one of the effective ways to obtain highly pure hydrogen.However,as one of the two half reactions,oxygen evolution reaction(OER)has a high overpotential,resulting in the low-energy utilization efficiency.Therefore,numerous electrocatalysts have been developed to reduce the energy barrier of OER.Among them,layered double hydroxides(LDHs)are excellent OER electrocatalysts with flexible composition and structure,which have been widely investigated in the past decade.Recent studies have been focusing on the identification of active sites for LDHs during OER process,trying to reveal clear reaction mechanism for designing more efficient LDHs electrocatalysts.Hence,this review tries to discuss the advances in identifying active site of LDHs based OER electrocatalysts for efficient hydrogen generation.We first introduce the effect of structure,composition,and defects to the OER performance of LDHs.Furthermore,main attention is paid on the active sites and mechanisms during OER,especially the coordination structures and catalytic mechanisms of active sites.At the end of this review,we put forward the existing problems and shortcomings in this fields,and propose the corresponding solutions,aiming to further promote the development of outstanding OER electrocatalysts towards efficient hydrogen production. | Xin Wan Yingjie Song Hua Zhou Mingfei Shao | 2022 | Energy Material Advances2022，，1： | 0 |
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