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| 1 | Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation显示文摘The development of highly efficient Pt-based alloy nanocatalysts is important but remains challenging for fuel cells commercialization.Here,a new class of zigzag-like platinum-zinc (Pt-Zn) alloy nanowires (NWs) with rough surface and controllable composition is reported.The merits of anisotropic one-dimensional nanostructure,stable high-index facets and coordinatively unsaturated Pt sites endow the composition-optimal Pt94Zn6 NWs with a mass activity of 7.2 and 6.2 times higher than that of commercial Pt black catalysts toward methanol/ethanol oxidation,respectively.Alloying-induced d-band electron modulation and lattice strain effects weaken the adsorption strength of poisoning species,which originally enhances the catalytic activity of Pt-Zn NWs.This study provides a new perspective of Pt-Zn electrocatalysts with intrinsic mechanism for enhanced catalytic performance. | Yanchao Xu Xiaoqiang Cui Shuting Wei Qinghua Zhang Lin Gu Fanqi Meng Jinchang Fan Weitao Zheng | 2019 | Nano Research2019，12，5： | 7 |
| 2 | Electron-Deficient Zn-N_(6) Configuration Enabling Polymeric Carbon Nitride for Visible-Light Photocatalytic Overall Water Splitting显示文摘Despite of suitable band structures for harvesting solar light and driving water redox reactions,polymeric carbon nitride(PCN)has suffered from poor charge transfer ability and sluggish surface reaction kinetics,which limit its photocatalytic activity for water splitting.Herein,atomically dispersed Zn-coordinated three-dimensional(3D)sponge-like PCN(Zn-PCN)is synthesized through a novel intermediate coordination strategy.Advanced characterizations and theoretical calculations well evidence that Zn single atoms are coordinated and stabilized on PCN in the form of Zn-N_(6) configura-tion featured with an electron-deficient state.Such an electronic configuration has been demonstrated contributive to promoted electron excitation,accelerated charge separation and transfer as well as reduced water redox barriers.Further benefited from the abundant surface active sites derived from the 3D porous structure,Zn-PCN realizes visible-light photocatalysis for overall water splitting with H_(2) and O_(2) simultaneously evolved at a stoichiometric ratio of 2:1.This work brings new insights into the design of novel single-atom photocatalysts by deepening the understanding of electronic configurations and reactive sites favorable to excellent photocatalysis for water splitting and related solar energy conversion reactions. | Daming Zhao Yiqing Wang Chung-Li Dong Fanqi Meng Yu-Cheng Huang Qinghua Zhang Lin Gu Lan Liu Shaohua Shen | 2022 | Nano-Micro Letters2022，14，12： | 2 |
| 3 | Frequency regulation in alternation-current transports across metal to insulator transitions of thin film correlated perovskite nickelates显示文摘Although the metal to insulator transition(MIT)observed in d-band correlated metal oxides enables promising applications(e.g.,correlated logical devices and Mottronic devices),its present recognition is mainly limited on the direct current(DC)electrical transports.Up to date,the MIT from the perspective of alternation current(AC)transport and its potential electronic applications remains yet unclear.Herein,we demonstrate the frequency(f_(AC))dependence in the impedance(Z=Z’+iZ″)of typical MIT materials,such as thin film rare-earth nickelates(Re NiO_(3)),across the critical MIT temperature(T_(MIT)).Apart from the abrupt change in the impedance modulus(|Z|)across the critical temperature(T_(MIT))similar to the DC transport,the MIT also triggers non-continuous variation in the impedance phase(θ),and this enables the f_(AC)-regulations in the Z’-T tendencies(Z’=|Z|cosθ).At the critical f_(AC) range(e.g.,104-106 Hz),the con-versing variations in|Z|-T and cosθ-T across T_(MIT) result in non-monotonic delta-shape Z’-T tendency in Sm_(x) Nd_(1-x) NiO_(3),the full width half maximum of which is effectively narrowed compared to the situation with the absence of MIT.Further imparting lower or higher f_(AC) elevate the domination in|Z|-T and cosθ-T,respectively,but also enables abrupt Z’-T tendencies across T_(MIT) showing negative temperature coefficient of resistance(NTCR)or positive temperature coefficient of resistance(PTCR).By introducing f_(AC) as a new freedom,the MIT behavior can be more comprehensively regulated electronically,and this extends the vision in exploring the new electronic applications based on the correlated MIT materials from the AC perspective. | Haifan Li Fanqi Meng Yi Bian Xuanchi Zhou Jiaou Wang Xiaoguang Xu Yong Jiang Nuofu Chen Jikun Chen | 2023 | Journal of Materials Science & Technology2023，，17： | 1 |
| 4 | Ap-plication of extenics theory for evaluating effect de-gree of damaged mountains based on analytic hier-archy process 显示文摘 | ZHANG Yongwei LI Shucai MENG Fanqi | 2014 | Environmental Earth Sciences2014，71，10： | 1 |
| 5 | Semi-chemical interaction between graphitic carbon nitride and Pt for boosting photocatalytic hydrogen evolution显示文摘Owing to the exorbitant overpotential and serious carrier recombination of graphitic carbon nitride(gC_(3)N_(4)),noble metal(NM)is usually served as the H_(2)evolution co-catalyst.Although the NM(such as Pt)nanoparticles can reduce the H_(2)evolution overpotential,the weak van der Waals interaction between Pt and g-C_(3)N_(4)makes against the charge transfer.Herein,the solvothermal method is developed to achieve semi-chemical interaction between Pt and g-C_(3)N_(4)nanotube(Pt-CNNT)for fast charge transfer.Moreover,the generated in-plane homojunction of CNNT can accelerate charge separation and restrain recombination.Meanwhile,the metallic Pt is an excellent H_(2)evolution co-catalyst.Photo/electrochemical tests verify that the semi-chemical interaction can improve photogenerated charge separation and transferability of CNNT.As a result,the photocatalytic H_(2)evolution turnover frequency(TOF)of Pt-CNNT under visible light irradiation reaches up to 918 h^(-1),which is one of the highest in the g-C_(3)N_(4)-based photocatalysts.This work provides a new idea to improve the charge transfer for efficient photocatalytic H_(2)evolution. | Ziai Zhong Lisha Chen Longshuai Zhang Feiyao Wu Xunheng Jiang Haiyan Liu Fengrong Lv Haiyang Xie Fanqi Meng Lingling Zheng Jianping Zou | 2022 | Chinese Chemical Letters2022，33，6： | 1 |
| 6 | Anchoring Single Nickel Atoms on Carbon-vacant Carbon Nitride Nanosheets for Efficient Photocatalytic Hydrogen Evolution显示文摘Polymeric carbon nitride(PCN)has emerged as a promising candidate for photocatalytic hydrogen evolution,but its dependence on scarce and high-cost noble metal co-catalysts severely limits its extensive application.It will be of great promise to develop non-noble metal single-atom co-catalysts with low-cost and high atom utilization to improve the photocatalytic performance over PCN.Herein,single Ni atoms are successfully anchored onto carbon-vacant PCN nanosheets(CCN-SANi)via a two-step ammonia thermal treatment and photo-deposition process.Theoretical calculations and experimental results demonstrate that the optical absorption property and the charge transfer ability of CCN-SANi have been significantly improved with the introduction of single Ni atoms to form Ni-N3 sites.In comparison to carbon-vacant PCN(CCN)loaded with Ni clusters,the obtained CCN-SANi exhibits 11.4 times increased photocatalytic performance,with the highest hydrogen evolution rate reaching 511μmol/(g·h),which is even 1.7 times higher than that of CCN loaded with Pt clusters.This research proposes an inspiring and reliable strategy to design novel single-atom semiconducting polymers with electronic structures manipulated for efficient photocatalysis. | LIN Zhi ZHANG Zhengqi WANG Yiqing PENG Zhiming WANG Xinxin WANG Ruizhe HUANG Yu-Cheng MENG Fanqi LI Mingtao DONG Chung-Li ZHANG Qinghua GU Lin SHEN Shaohua | 2022 | Chemical Research in Chinese Universities2022，38，5： | 1 |
| 7 | Study on the stability of CH3NH3PbI3 films and the effect of post- modification by aluminum oxide in all-solid-state hybrid solar cells 显示文摘 | Niu Guangda Li Wenzhe Meng Fanqi | 2013 | Journal of Materials Chemistry A2013，2，3： | 1 |
| 8 | A theoretical investigation of wedged capacitive strip-grating output couplers for optically pumped terahertz laser显示文摘 | Qi Chunchao Zuo Duluo Meng Fanqi | 2010 | Optics Communication2010，283，4： | 1 |
| 9 | Quantized anomalous Hall resistivity achieved in molecular beam epitaxy-grown MnBi_(2)Te_(4)thin films显示文摘The intrinsic magnetic topological insulator MnBi_(2)Te_(4)provides a feasible pathway to the high-temperature quantum anomalous Hall(QAH)effect as well as various novel topological quantum phases.Although quantized transport properties have been observed in exfoliated MnBi_(2)Te_(4)thin flakes,it remains a big challenge to achieve molecular beam epitaxy(MBE)-grown MnBi_(2)Te_(4)thin films even close to the quantized regime.In this work,we report the realization of quantized anomalous Hall resistivity in MBE-grown MnBi_(2)Te_(4)thin films with the chemical potential tuned by both controlled in situ oxygen exposure and top gating.We find that elongated post-annealing obviously elevates the temperature to achieve quantization of the Hall resistivity,but also increases the residual longitudinal resistivity,indicating a picture of high-quality QAH puddles weakly coupled by tunnel barriers.These results help to clarify the puzzles in previous experimental studies on MnBi_(2)Te_(4)and to find a way out of the big difficulty in obtaining MnBi_(2)Te_(4)samples showing quantized transport properties. | Yunhe Bai Yuanzhao Li Jianli Luan Ruixuan Liu Wenyu Song Yang Chen Peng-Fei Ji Qinghua Zhang Fanqi Meng Bingbing Tong Lin Li Yuying Jiang Zongwei Gao Lin Gu Jinsong Zhang Yayu Wang Qi-Kun Xue Ke He Yang Feng Xiao Feng | 2024 | National Science Review2024，11，2： | 0 |
| 10 | Metal-organic decomposition growth of thin film metastable perovskite nickelates with kinetically improved quantum transitions显示文摘The multiple quantum transitions within d-band correlation oxides such as rare-earth nickelates(RENiO_(3))triggered by critical temperatures and/or hydrogenation opened up a new paradigm for correlated electronics applications,e.g.ocean electric field sensor,bio-sensor,and neuron synapse logical devices.Nevertheless,these applications are obstructed by the present ineffectiveness in the thin film growth of the metastable RENiO_(3)with flexibly adjustable rare-earth compositions and electronic structures.Herein,we demonstrate a metal-organic decompositions(MOD)approach that can effectively grow metastable RENiO_(3)covering a large variety of the rare-earth composition without introducing any vacuum process.Unlike the previous chemical growths for RENiO_(3)relying on strict interfacial coherency that limit the film thickness,the MOD growth using reactive isooctanoate percussors is tolerant to lattice defects and therefore achieves comparable film thickness to vacuum depositions.Further indicated by positron annihilation spectroscopy,the RENiO_(3)grown by MOD exhibit large amount of lattice defects that improves their hydrogen incorporation amount and electron transfers,as demonstrated by the resonant nuclear reaction analysis and near edge X-ray absorption fine structure analysis.This effectively enlarges the magnitude in the resistance regulations in particular for RENiO_(3)with lighter RE,shedding a light on the extrinsic regulation of the hydrogen induced quantum transitions for correlated oxides semiconductors kinetically via defect engineering. | Haiyan Li Yuzhao Wang Fanqi Meng Wei Mao Xingzhong Cao Yi Bian Hao Zhang Yong Jiang Nuofu Chen Jikun Chen | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，12： | 0 |
| 11 | Photocatalytic and electrochemical degradation of methylene blue by titanium dioxide显示文摘A photoanode structure for dye-sensitized solar cells has been applied into the photocatalytic/electrochemical cooperative degradation of methylene blue solutions.The low eutectic point of titanium dioxide(TiO2)with a fluorine-doped tin dioxide(FTO)conductive layer results in a high reactivity of TiO2for the photocatalytic process as well as a good electron transfer for the electrochemical process.The porous TiO2layer maintains a large surface area for the degradations.Through the combinational process,the degradation velocity was improved by*36%,compared to a pure photocatalytic process. | Min Yang Xinling Liu Jikun Chen Fanqi Meng Yuliang Zhang Helmut Brandl Thomas Lippert Nuofu Chen | 2014 | Chinese Science Bulletin2014，59，17： | 0 |
| 12 | Superconductivity above 28K in single unit cell FeSe ?lms interfaced with GaO_(2-δ) layer on NdGaO_3(110)显示文摘The discovery of high temperature superconductivity in single unit cell(UC)FeSe on TiO2-δterminated perovskite SrTiO3(001)substrates[1]has attracted intensive attention on searching for new superconducting systems with engineered interfaces as well as understanding the mechanism of interface high temperature superconductivity. | Haohao Yang Guanyu Zhou Yuying Zhu Guan-Ming Gong Qinghua Zhang Menghan Liao Zheng Li Cui Ding Fanqi Meng Mohsin Rafique Heng Wang Lin Gu Ding Zhang Lili Wang Qi-Kun Xue | 2019 | Science Bulletin2019，64，8： | 0 |
| 13 | Domain Wall Evolution in Hf_(0.5)Zr_(0.5)O_(2)Ferroelectrics under Field-Cycling Behavior显示文摘HfO_(2)-based ferroelectrics have evoked considerable interest owing to the complementary metal-oxide semiconductor compatibility and robust ferroelectricity down to a few unit cells.However,the unique wake-up effect of HfO_(2)-based ferroelectric films severely restricts the improvement of their performance.In particular,the domain structure is an important characteristic of ferroelectric materials,which still has not been well understood in HfO_(2)-based ferroelectrics.In this work,a Hf_(0.5)Zr_(0.5)O_(2) ferroelectric thin film is grown on a typical Si substrate buffered with TiN electrode.The 90°domains of the Pca21 ferroelectric phase with head-to-tail and tail-to-tail structures can be observed by Cs-corrected scanning transmission electron microscope under their pristine condition.After waking up,the 180°domain is displayed in the ferroelectric phase.The remarkable differences in domain walls for 90°and 180°domains are characterized by qualitatively mapping the polarization distributions at the atomic scale.The domain wall changes from the[101]of the Hf_(0.5)Zr_(0.5)O_(2) film to the[001]of the Hf_(0.5)Zr_(0.5)O_(2) film.This result provides fundamental information for understanding the domain structure of HfO_(2)-based ferroelectrics. | Sirui Zhang Qinghua Zhang Fanqi Meng Ting Lin Binjian Zeng Lin Gu Min Liao Yichun Zhou | 2023 | Research2023，，4： | 0 |
| 14 | Chromosome-level genome assembly of Salvia miltiorrhiza with orange roots uncovers the role of Sm2OGD3 in catalyzing 15,16-dehydrogenation of tanshinones显示文摘Salvia miltiorrhiza is well known for its clinical practice in treating heart and cardiovascular diseases.Its roots,used for traditional Chinese medicine materials,are usually brick-red due to accumulation of red pigments,such as tanshinone IIA and tanshinone I.Here we report a S.miltiorrhiza line(shh)with orange roots.Compared with the red roots of normal S.miltiorrhiza plants,the contents of tanshinones with a single bond at C-15,16 were increased,whereas those with a double bond at C-15,16 were significantly decreased in shh.We assembled a high-quality chromosome-level genome of shh.Phylogenomic analysis showed that the relationship between two S.miltiorrhiza lines with red roots was closer than the relationship with shh.It indicates that shh could not be the mutant of an extant S.miltiorrhiza line with red roots.Comparative genomic and transcriptomic analyses showed that a 1.0 kb DNA fragment was deleted in shh Sm2OGD3m.Complementation assay showed that overexpression of intact Sm2OGD3 in shh hairy roots recovered furan D-ring tanshinone accumulation.Consistently,in vitro protein assay showed that Sm2OGD3 catalyzed the conversion of cyptotanshinone,15,16-dihydrotanshinone I and 1,2,15,16-tetrahydrotanshinone I into tanshinone IIA,tanshinone I and 1,2-dihydrotanshinone I,respectively.Thus,Sm2OGD3 functions as tanshinone 15,16-dehydrogenase and is a key enzyme in tanshinone biosynthesis.The results provide novel insights into the metabolic network of medicinally important tanshinone compounds. | Xian Pan Yujie Chang Caili Li Xiaoxiao Qiu Xinyun Cui Fanqi Meng Sixuan Zhang Xian’en Li Shanfa Lu | 2023 | Horticulture Research2023，10，6： | 0 |
| 15 | Dual-bionic regenerative microenvironment for peripheral nerve repair显示文摘Autologous nerve grafting serves is considered the gold standard treatment for peripheral nerve defects;however,limited availability and donor area destruction restrict its widespread clinical application.Although the performance of allogeneic decellularized nerve implants has been explored,challenges such as insufficient human donors have been a major drawback to its clinical use.Tissue-engineered neural regeneration materials have been developed over the years,and researchers have explored strategies to mimic the peripheral neural microenvironment during the design of nerve catheter grafts,namely the extracellular matrix(ECM),which includes mechanical,physical,and biochemical signals that support nerve regeneration.In this study,polycaprolactone/silk fibroin(PCL/SF)-aligned electrospun material was modified with ECM derived from human umbilical cord mesenchymal stem cells(hUMSCs),and a dual-bionic nerve regeneration material was successfully fabricated.The results indicated that the developed biomimetic material had excellent biological properties,providing sufficient anchorage for Schwann cells and subsequent axon regeneration and angiogenesis processes.Moreover,the dual-bionic material exerted a similar effect to that of autologous nerve transplantation in bridging peripheral nerve defects in rats.In conclusion,this study provides a new concept for designing neural regeneration materials,and the prepared dual-bionic repair materials have excellent auxiliary regenerative ability and further preclinical testing is warranted to evaluate its clinical application potential. | Yanjun Guan Zhiqi Ren Boyao Yang Wenjing Xu Wenjun Wu Xiangling Li Tieyuan Zhang Dongdong Li Shengfeng Chen Jun Bai Xiangyu Song Zhibo Jia Xing Xiong Songlin He Chaochao Li Fanqi Meng Tong Wu Jian Zhang Xiuzhi Liu Haoye Meng Jiang Peng Yu Wang | 2023 | Bioactive Materials2023，，8： | 0 |
| 16 | Annual precipitation gray forecast in disaster year of Chedaren debris flow显示文摘The Chedaren ravine belongs to high-prone areas of debris flow in Jilin Province,which threaten the local people's life and security seriously.The authors used the residual correction theory to amend the GM(1,1) model and forecast annual precipitation in disaster year of the Chedaren ravine;it provides scientific foundation for early warning of debris flow disaster in the rainy season based on weather forecast.The prediction results show that annual precipitation is 724.7 mm in 2009;the region will probably occur large-scale debris flow during the rainy season. | MENG Fanqi LI Guangjie | 2009 | Global Geology2009，12，2： | 0 |
| 17 | Erratum to:Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation显示文摘The article Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation, written by Xiaoqiang Cui and Weitao Zheng, was erroneously originally published electronically on the publisher’s internet portal (currently SpringerLink) on 6 April 2019 with incomplete Electronic Supplementary Material (ESM), which should contain 16 figures and 3 tables. You will find the complete supplementary material file online linked to this publisher’s erratum. | Yanchao Xu Xiaoqiang Cui Shuting Wei Qinghua Zhang Lin Gu Fanqi Meng Jinchang Fan Weitao Zheng | 2019 | Nano Research2019，12，8： | 0 |
| 18 | 2D-to-3D buckling transformability enabled reconfigurable metamaterials for tunable chirality and focusing effect显示文摘Recently,multifarious deformation approaches in nature have promoted dynamic manipulation for electromagnetic(EM)waves in metamaterials,and those representative strategies are mainly focused on the modulation of spectral parameters.Several works have also achieved tunable phase-gradient meta-devices.Here,to broaden the modulation freedom of mechanical deformation,we initially propose two reconfigurable metamaterials consisting of mirrored S-shaped meta-atoms selectively bonded on biaxially pre-stretched substrates.Planar meta-atoms with spin-insensitive transmittance are buckled into 3D morphologies to break residual symmetries by releasing the stress and to facilitate spin-dependent transmittance under circularly polarized incidence.Owing to the geometric anisotropy of S-shaped meta-atoms along the x and y axes,3D chiral meta-atoms exhibit discriminate circularly cross-polarized transmittance under opposite spins.The underlying physical mechanism reveals that EM resonance originates from the excitation of electric dipoles and magnetic dipoles,and their cross coupling finally triggers the chiral effects of 3D meta-atoms.By introducing the gradient-phase design that keeps unchanged under various strains,two types of meta-atoms with specified orientations are interleaved to design a double-foci metalens,and its 2D-to-3D morphology transformation shortens the focusing length and facilitates the intensity change of two foci.Our approach in designing reconfigurable EM metamaterials with 2D-to-3D buckling transformability can be further extended toward terahertz even optical wavebands,and it may assist with deriving more applicable multi-functionalities in the aspects of imaging,sensing,and holograms. | DONGHAI HAN WENKANG LI TAO SUN MIN LIU XIAOMING CHEN HONGYU SHI ZHENGJIE FAN FANQI MENG LIUYANG ZHANG XUEFENG CHEN | 2023 | Photonics Research2023，11，10： | 0 |
| 19 | Boosting Li-ion storage in Li2MnO_(3) by unequal-valent Ti4+-substitution and interlayer Li vacancies building显示文摘Lithium rich layered oxide(LRLO) has been considered as one of the promising cathodes for lithium-ion batteries(LIBs). The high voltage and large capacity of LRLO depend on Li2MnO_(3)phase. To ameliorate the electrochemical performance of Li2MnO_(3), also written as Li(Li1/3Mn2/3)O_(2), we propose a strategy to substitute Mn4+and Li+in Mn/Li transition metal layer with Ti4+, which can stabilize the structure of Li2MnO_(3)by inhibiting the excessive oxidation of O_(2)-above 4.5 V. More significantly, the unequal-valent substitution brings about the emergence of interlayer Li vacancies, which can promote the Li-ion diffusion based on the enlarged interlayer and increase the capacity by activating the Mn3+/4+redox. We designed Li0.7[Li1/3Mn2/3]0.7Ti0.3O_(2)with high interlayer Li vacancies, which presents a high capacity(290 m Ah/g at 10 m A/g) and stable cycling performance(84% over 60 cycles at 50 m A/g). We predict that this strategy will be helpful to further improve the electrochemical performance of LRLOs. | Yu Tian Yuling Zhao Fanqi Meng Kaicheng Zhang Yanyuan Qi Yujie Zeng Congcong Cai Yuli Xiong Zelang Jian Yang Sun Lin Gu Wen Chena | 2023 | Chinese Chemical Letters2023，34，4： | 0 |
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