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Plasma-assisted synthesis of porous bismuth nanosheets for electrocatalytic CO_(2)-to-formate reduction

Journal of Energy Chemistry 2024年第7期94卷 19-28页

作者： liangping xiao Qizheng Zheng Rusen Zhou Sifan Liu Yifan Zhao Yadong Zhao Renwu Zhou Kostya Ken Ostrikov State Key Laboratory of Electrical Insulation and Power Equipment Centre for Plasma BiomedicineSchool of Electrical EngineeringXi'an Jjiaotong UniversityXi'an 710049 ShaanxiChina School of Chemistry and Physics QUT Centre for Materials ScienceQueensland University of Technology(QUT)BrisbaneQLD 4000.Australia Department of Physics Research Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional MaterialsJiujiang Research InstituteXiamen UniversityXiamen361005FujianChina Department of Biomaterials College of MaterialsXiamen UniversityXiamen 361005FujianChina School of Food and Pharmacy Zhejiang Ocean UniversityZhoushan 316022ZhejiangChina

The electrochemical carbon dioxide reduction(eCO_(2)RR)to formate,driven by clean energy,is a promising approach for producing renewable chemicals and high-value fuels.Despite its potential,further development faces challenges due to limitations in electrocatalytic activity and durability,especially for nonnoble metal-based catalysts.Here,naturally abundant bismuth-based nanosheets that can effectively drive CO_(2)-to-formate electrocatalytic reduction are prepared using the plasma-activated Bi_(2)Se_(3) followed by a reduction process.Thus-obtained plasma-activated Bi nanosheets(P-BiNS)feature ultrathin structures and high surface areas.Such nanostructures ensure the P-BiNS with outstanding eCO_(2)RR catalytic performance,highlighted by the current density of over 80 mA cm^(-2) and a formate Faradic efficiency of>90%.Furthermore,P-BiNS catalysts demonstrate excellent durability and stability without deactivation following over 50h of operation.The selectivity for formate production is also studied by density functional theory(DFT)calculations,validating the importance and efficacy of the stabilization of intermediates(^(*)OCHO)on the P-BiNS surfaces.This study provides a facile plasma-assisted approach for developing high-performance and low-cost electrocatalysts.

关键词： Plasma-assisted synthesis Plasmaa ctivation Bismuth nanosheet CO_(2)RR Formate

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A hint from phosphine complex: The π back-bonding in cobalt-phosphorene composite enables enhanced electrocatalytic performance

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Progress in Natural Science:Materials International 2023年第1期33卷 100-107页

作者： Xingyun Li liangping xiao Hao Wang Jingting Song Qingchi Xu Meidan Ye Jun Xu Shenzhen Research Institute of Xiamen University Department of Physics Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials Xiamen University Jiujiang Research Institute of Xiamen University Department of Chemistry National University of Singapore

Regulating the electronic structure of the metal electrocatalyst is fundamental for its performance optimizing. The electronic states of the active metal centers are highly dependent on their coordination environment, especially when bonding is formed. The π back-bonding can induce great electron density redistribution around metals, yet it is barely applied in electrocatalyst design. Herein we electrodeposited metallic cobalt on black phosphorus(BP)nanosheets, forming BP-Co with a unique π back-bonding on the interfaces. The BP-Co exhibited high electrocatalytic activity and stability for hydrogen evolution reaction in alkaline electrolyte. The electrochemical and spectroscopic characterizations demonstrated that the BP acted as σ donor and π acceptor to coordinate with electron-rich metallic Co, similar to the phosphine complex. The directional σ bond strengthen the relationship between BP and Co, while the non-directional π bond accelerated the in-plane electron transfer. The π back donation also decreased the oxophilicity of Co to make BP-Co resist the poison from oxygen species. This study can intrigue new thinking prospective for the electrocatalyst design.

关键词： Black phosphorus Pi back-bonding Electrocatalyst Electrodeposition Electronic structure

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A robust Janus bilayer with tailored ionic conductivity and interface stability for stable Li metal anodes

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Journal of Energy Chemistry 2022年第11期31卷 368-375,I0010页

作者： Guodong Zhang Pengwei Li Kai Chen Hongfei Zheng Wei He liangping xiao Xingyun Li Qingchi Xu Jian Weng Jun Xu Department of Biomaterials College of MaterialsXiamen UniversityXiamen 361005FujianChina bDepartment of Physics Research Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional MaterialsXiamen UniversityXiamen 361005FujianChina Shenzhen Research Institute of Xiamen University Shenzhen 518057GuangdongChina

The formation and growth of Li-dendrites caused by inhomogeneous Li deposition severely hinder the commercial applications of Li metal batteries due to the consequence of short-circuiting.Herein,we propose a Janus bilayer composed of black phosphorus(BP)and graphene oxide(GO)as an artificial interface with chemical/mechanical stability and well-regulated Li-ion flux distribution for Li metal anode protection.Owing to the synergy between the fast Li-ion transport of BP in the inner layer and the high mechanical and chemical stability of GO in the outer layer,the GO/BP with good electrolyte wettability acts as a Li-ion regulator that can induce homogeneous growth of Li to suppress the Li dendrites growth.Accordingly,long-term stability(500 h at 1 mA cm^(-2))with a low overpotential of 30 mV is achieved in the symmetric cell with GO/BP-Li anode.Furthermore,the Li–S cell with GO/BP-Li exhibits enhanced cycling performance with a high capacity retention rate of 76.2%over 500 cycles at 1 C.

关键词： Graphene oxide(GO) Black phosphorus(BP) Artificial interface Janus bilayer Li metal batteries

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Reduced Ti-MOFs encapsulated black phosphorus with high stability and enhanced photocatalytic activity

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Journal of Energy Chemistry 2021年第2期30卷 185-191,I0007页

作者： xiao Liu Peijie Fan liangping xiao Jian Weng Qingchi Xu Jun Xu Department of Biomaterials College of Materials.Xiamen UniversityXiamen 361005Fujian.China Department of Physics Research Institute for Biomimetics and Soft MatterFujian Provincial Key Laboratory for Soft Functional MaterialsXiamen UniversityXiamen 361005FujianChina Shenzhen Research Institute of Xiamen University.Shenzhen 518057 GuangdongChina China State Key Lab of Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy MaterialsCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005FujianChina

The generation of green hydrogen(H_2) energy is of great significance to solve worldwide energy and environmental issues. Reduced Ti based photocatalyst has recently attracted intensive attention due to its excellent photocatalytic activity, while the synthesis of reduced Ti based photocatalysts with high stability is still a great challenge. Here, we report a facile method for synthesis of reduced Ti metal organic frameworks(small amounts of Pt incorporated) encapsulated BP(BP/R-Ti-MOFs/Pt) hybrid nanomaterial with enhanced photocatalytic activity. The strong interaction between Ti and P reduces the valence state of the binding Ti^(4+)on the BP surface, forming abundant reduced Ti^(4+)within R-Ti-MOFs/BP. Such reduced Ti^(4+)render R-Ti-MOFs/BP efficient charge transfer and excellent light absorption capability, thus promote the photocatalytic H_2 production efficiency. Furthermore, the Ti-P interaction stabilizes both reduced Ti^(4+)and BP during the photocatalytic reaction, which greatly enhanced the stability of the obtained BP/R-TiMOFs/Pt photocatalyst.

关键词： 2D materials Reduced Ti-MOFs Black phosphorus Photocatalysis Solar-to-hydrogen conversion Metal-organic frameworks

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新时代大学生弘扬奉献精神的实践路径研究

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南昌师范学院学报 2024年第1期45卷 59-65页

作者：肖良平温紫琳丰晟敏南昌师范学院江西南昌330032 首都师范大学北京100048

党的二十大报告引领新阶段新使命新方向,召唤新时代青年敢担当、有作为。奉献精神是共产党人精神谱系中的重要组成部分,伴随党走过百年历程,促使一代又一代有志青年为民族独立、国家富强和人民幸福不懈努力。新时代大学生是完成新阶段... 详细信息

党的二十大报告引领新阶段新使命新方向,召唤新时代青年敢担当、有作为。奉献精神是共产党人精神谱系中的重要组成部分,伴随党走过百年历程,促使一代又一代有志青年为民族独立、国家富强和人民幸福不懈努力。新时代大学生是完成新阶段新使命新任务的人才后备军,培育新时代大学生奉献精神为全面建设社会主义现代化强国提供精神动力。让奉献和服务成为新时代大学生普遍认可并不懈践行的人生追求,面临诸多挑战。发挥大学生的主观能动性,使其真正认可并践行奉献精神,积极创造各种实践性条件让大学生“外化”奉献精神,为高校培育大学生奉献精神提供新思路。

关键词：新时代大学生奉献精神路径研究

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Probing surface structure on two-dimensional metal-organic layers to understand suppressed interlayer packing

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Nano Research 2020年第11期13卷 3151-3156页

作者： Peican Chen Yi Liu Xuefu Hu xiaolin Liu En-Ming You Xudong Qian Jiawei Chen liangping xiao Lingyun Cao Xinxing Peng Zhongming Zeng Yibing Jiang Song-Yuan Ding Honggang Liao Zhaohui Wang Da Zhou Cheng Wang IChem State Key Laboratory of Physical Chemistry of Solid SurfacesCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005China School of Mathematical Sciences and Fujian Provincial Key Laboratory of Mathematical Modeling and High-Performance Scientific Computation Xiamen UniversityXiamen361005China

Two-dimensional metal-organic layers(MOLs)from alternatively connected benzene-tribenzoate ligands and Zr6(μ3-O)_(4)(μ3-OH)_(4) or Hf6(μ3-O)_(4)(μ3-OH)_(4) secondary building units can be prepared in gram scale via solvothermal synthesis.However,the reason why the monolayers did not pack to form thick crystals is unknown.Here we investigated the surface structure of the MOLs by a combination of sum-frequency generation spectroscopy,nanoscale infrared microscopy,atomic force microscopy,aberration-corrected transmission electron microscopy,and compositional analysis.We found a partial coverage of the monolayer surface by dangling tricarboxylate ligands,which prevent packing of the monolayers.This finding illustrates low-density surface modification as a strategy to prepare new two-dimensional materials with a high percentage of exposed surface.

关键词： metal-organic frameworks metal-organic layers surface structure two-dimensional(2D)materials solvothermal synthesis

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A multifunctional nanotheranostic agent potentiates erlotinib to EGFR wild-type non-small cell lung cancer

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Bioactive Materials 2022年第7期7卷 312-323页

作者： Duo Wang Jun Zhou Weimin Fang Cuiqing Huang Zerong Chen Meng Fan Ming-Rong Zhang Zeyu xiao Kuan Hu liangping Luo Medical Imaging Center The First Affiliated Hospital of Jinan UniversityGuangzhou510632PR China The Guangzhou Key Laboratory of Molecular and Functional Imaging for Clinical Translation Jinan UniversityGuangzhou510632PR China Department of Advanced Nuclear Medicine Sciences Institute of Quantum Medical ScienceNational Institutes for Quantum and Radiological Science and TechnologyChiba263-8555Japan Center for Nanomedicine and Department of Anesthesiology Brigham and Women’s HospitalHarvard Medical SchoolBostonMA02115USA

Epidermal growth factor receptor(EGFR)tyrosine kinase inhibitors(TKI),such as Erlotinib,have demonstrated remarkable efficacy in the treatment of non-small cell lung cancer(NSCLC)patients with mutated EGFR.However,the efficacy of EGFR-TKIs in wild-type(wt)EGFR tumours has been shown to be marginal.Methods that can sensitize Erlotinib to EGFR wild-type NSCLC remain rare.Herein,we developed a multifunctional superparamagnetic nanotheranostic agent as a novel strategy to potentiate Erlotinib to EGFR-wt NSCLCs.Our results demonstrate that the nanoparticles can co-escort Erlotinib and a vascular epithermal growth factor(VEGF)inhibitor,Bevacizumab(Bev),to EGFR-wt tumours.The nanotheranostic agent exhibits remarkable effects as an inhibitor of EGFR-wt tumour growth.Moreover,Bev normalizes the tumour embedded vessels,further promoting the therapeutic efficacy of Erlotinib.In addition,the tumour engagement of the nanoparticles and the vascular normalization could be tracked by magnetic resonance imaging(MRI).Collectively,our study,for the first time,demonstrated that elaborated nanoparticles could be employed as a robust tool to potentiate Erlotinib to EGFR-wt NSCLC,paving the way for imaging-guided nanotheranostics for refractory NSCLCs expressing EGFR wild-type genes.

关键词： Non-small cell lung cancer EGFR wild-Type Superparamagnetic iron oxide Erlotinib Bevacizumab Tumour vascular normalization

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心脏贝赫切特病引起房室传导阻滞1例

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中华心律失常学杂志 2024年第2期28卷 182-184页

作者：闻建帆查方迪王粮萍廖书生徐蕾陈骁黄伟剑苏蓝昆明医科大学附属延安医院心内科昆明650000 温州医科大学第一临床医学院(信息与工程学院) 温州325035 温州医科大学附属第一医院心内科温州325035 温州医科大学附属第一医院超声科温州325035

贝赫切特病是一种全身免疫性血管炎性疾病,男性多发,累及心脏少见。以心脏受累为主要表现时,又称为心脏贝赫切特病,发病隐匿,进展迅速。而传导系统损伤是心脏贝赫切特病少见的并发症,容易漏诊。本文描述了1例以晕厥为首发症状的心脏贝... 详细信息

贝赫切特病是一种全身免疫性血管炎性疾病,男性多发,累及心脏少见。以心脏受累为主要表现时,又称为心脏贝赫切特病,发病隐匿,进展迅速。而传导系统损伤是心脏贝赫切特病少见的并发症,容易漏诊。本文描述了1例以晕厥为首发症状的心脏贝赫切特病例,主要特征是主动脉窦部结节和间歇性完全房室传导阻滞。通过永久心脏起搏和免疫治疗,主动脉窦部结节消除,房室传导功能恢复。明确本病例的基础病因后,起搏治疗和针对性治疗可及时纠正房室传导阻滞,并避免发生主动脉瓣膜损害等严重后果。

关键词：房室传导阻滞贝赫切特病心脏贝赫切特病心脏结节晕厥

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四川仪陇—平昌地区长兴组-飞仙关组层序地层及沉积演化

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地质通报 2024年第2期43卷 350-362页

作者：廖鑫羽肖云鹏宋振宇中海油能源发展股份有限公司工程技术海南分公司海南澄迈571999 中海石油(中国)有限公司海南分公司海南海口570300 长江大学地球科学学院湖北武汉430100

四川仪陇—平昌地区,特别是环开江-梁平海槽区域的长兴组—飞仙关组蕴藏着大量油气资源,但其三级层序划分方案有待统一。基于最新的钻井岩心、测井、野外露头资料综合分析,识别出岩性岩相突变界面及局部暴露不整合界面2种Ⅱ型层序界面,... 详细信息

四川仪陇—平昌地区,特别是环开江-梁平海槽区域的长兴组—飞仙关组蕴藏着大量油气资源,但其三级层序划分方案有待统一。基于最新的钻井岩心、测井、野外露头资料综合分析,识别出岩性岩相突变界面及局部暴露不整合界面2种Ⅱ型层序界面,将仪陇—平昌地区的长兴组-飞仙关组划分为4个三级层序,建立了层序地层格架。该区目的层主要发育典型的镶边台地沉积体系,至晚期海槽消失,发育陆表海型台地体系开阔台地及蒸发台地。长兴组沉积期,开江-梁平海槽范围逐渐扩大,高位域是生物礁发育的有利阶段,由于SQ2晚期海平面急速下降,其生物礁规模较SQ1时期有所减小;飞仙关组沉积早期海平面快速上升,鲕粒滩难以形成,随后进入整体海退阶段,至SQ3高位域时期,鲕粒滩连片发育。层序划分方案与礁、滩储层发育特征匹配,能够应用于下一步油气勘探。

关键词：长兴组飞仙关组层序划分沉积演化仪陇—平昌地区四川

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川东地区龙潭组页岩岩性序列及勘探意义

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地质科学 2024年第1期59卷 166-179页

作者：姚永君肖高杰范兴燕胡国恒黎李王欣张兵杨凯肖威中国石油西南油气田分公司重庆气矿重庆401147 中国石油勘探开发研究院北京100083 四川长宁天然气开发有限责任公司成都610057 成都理工大学成都610051

川东地区龙潭组具有较大的页岩气勘探前景,该地层沉积于海陆过渡环境,沉积相变化快,岩性复杂,存在难以通过常规的矿物成分方法划分岩相以及当前岩相划分尚不精确的问题,制约了该地区龙潭组页岩有利岩相带识别及勘探。本文基于岩心观察... 详细信息

川东地区龙潭组具有较大的页岩气勘探前景,该地层沉积于海陆过渡环境,沉积相变化快,岩性复杂,存在难以通过常规的矿物成分方法划分岩相以及当前岩相划分尚不精确的问题,制约了该地区龙潭组页岩有利岩相带识别及勘探。本文基于岩心观察、野外剖面实测和薄片鉴定,结合钻井的泥地比、单层岩性厚度,建立了川东地区龙潭组7种特征岩性组合模式(泥页岩型、富泥含砂型、富泥含灰型、灰泥互层型、富灰含泥型、致密灰岩型和火成岩型);综合TOC、孔隙度、含气性、脆性指数等页岩储层特征参数,明确了不同岩性组合在龙潭组各段的平面分布规律。研究表明,纵向上优势岩性组合主要为龙潭一段富泥含灰型和泥页岩型,龙潭二段主要为泥页岩型、灰泥互层型和富泥含灰型。平面上龙潭一段优势岩性组合富泥含灰型主要分布在开州—云阳一带,泥页岩型主要分布在重庆—綦江一带;龙潭二段优势岩性组合泥页岩型分布在巴南—綦江一带,灰泥互层型分布在达州一带,富泥含灰型分布在万州—梁平—石柱一带。该项研究成果为川东地区龙潭组页岩气勘探提供了重要依据。

关键词：川东地区龙潭组岩性组合优势页岩储层勘探意义

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