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Isolated ultrasmall Bi nanosheets for efficient CO_(2)-to-formate electroreduction

Nano Research 2022年第2期15卷 1409-1414页

作者： Jinze Liu Yuhang Li Yating Wang chuqian xiao Miaomiao Liu xiaodong Zhou Hao Jiang Chunzhong Li Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Materials Science and EngineeringEast China University of Science&TechnologyShanghai 200237China School of Chemical Engineering East China University of Science&TechnologyShanghai 200237China

Electrochemical reduction of CO_(2) to valuable formate as liquid fuel is a promising way to alleviate the greenhouse *** edge active sites in bismuth(Bi)nanosheets play a critical role in the electrochemical reduction of CO_(2) into formate,which enable the operation of CO_(2) reduction with high cathodic energy efficiency,especially under large current densities of≥200 mA/cm^(2).However,the undesirable reconstruction of small Bi nanosheets into large nanosheets leads to the decreasing of edge active sites during *** we report stable isolated ultrasmall bismuth nanosheets-synthesized by in-situ electrochemical transformation of ligands covered bismuth vanadate-on silver nanowires as an efficient electrocatalyst for CO_(2)-to-formate *** cooperative electrocatalyst achieves a formate current density of 186 mA/cm^(2) and a cathodic energy efficiency of 75%for formate,which is the only best compared to the literature ***。Raman and morphologic measurements demonstrate that the excellent energy utilization of the electrocatalyst is originated from the rich edge active sites with Bi-O species of the ultrasmall Bi nanosheets.

关键词： bismuth CO_(2)reduction electrocatalysis formate ultrasmall nanosheets

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Electrocatalytic conversion of waste polyamide-66 hydrolysates into high-added-value adiponitrile and hydrogen fuel

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Electron 2023年第2期1卷 17-24页

作者： chuqian xiao Wan Ru Leow Luyang Chen Yuhang Li Chunzhong Li Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghaiChina Institute of Sustainability for Chemicals Energy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore School of Chemical Engineering East China University of Science and TechnologyShanghaiChina

To reduce environmental pollution and plastic recycling costs,poly-amide-66(PA-66)as the most consumed engineering polymer needs to be recycled ***,the existing recycling methods cannot convert waste PA-66 into valuable chemicals for upcycling under ambient ***,we report an integrated hydrolysis and electrocatalytic process to upcycle waste PA-66 into valuable adiponitrile(ADN),adipic acid,and H_(2) commodities,thereby closing the PA-66 *** enable electrooxidation of the PA-66 hydrosylate hexamethylenediamine(HMD),we fabricated anode catalysts with hierarchical Ni_(3)S_(2)@Fe_(2)O_(3) core-shell heterostructures comprising spindle-shaped Ni_(3)S_(2) cores and Fe_(2)O_(3) nanosheet *** unique core-shell architecture and synergy of the Ni_(3)S_(2) and Fe_(2)O_(3) catalysts enabled the selective dehydrogenation of C-N bonds from HMD to nitrile C≡N bonds,forming ADN with near-unity Faradaic efficiency at 1.40 V during the 100-h stability test even at 100 mA cm^(−2).X-ray photoelectron spectroscopy revealed that the Ni(Fe)oxy(hydroxide)species formed were in the active state during oxidation,accelerating the activation of the amino C-N bond for dehydrogenation directly into the C≡N bonds.

关键词： electrocatalysis high-value chemicals Ni_(3)S_(2)@Fe_(2)O_(3) core-shell upcycling PA-66 plastic

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单原子催化二电子氧气还原反应的电解液效应

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Science Bulletin 2023年第1期68卷 25-28页

作者：李诗佳肖楚倩江宏亮李宇航李春忠 Key Laboratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Pollution from many aspects of daily life and industrial production,such as sterilization,thesewage purification,chemical synthesis,and paper or cotton fabric bleaching,has been a serious threat to human *** peroxide(... 详细信息

关键词：氧气还原反应 pollution 单原子催化

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The landscape of aging

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Science China(Life Sciences) 2022年第12期65卷 2354-2454页

作者： Yusheng Cai Wei Song Jiaming Li Ying Jing chuqian Liang Liyuan Zhang Xia Zhang Wenhui Zhang Beibei Liu Yongpan An Jingyi Li Baixue Tang Siyu Pei Xueying Wu Yuxuan Liu Cheng-Le Zhuang Yilin Ying Xuefeng Dou Yu Chen Fu-Hui xiao Dingfeng Li Ruici Yang Ya Zhao Yang Wang Lihui Wang Yujing Li Shuai Ma Si Wang xiaoyuan Song Jie Ren Liang Zhang Jun Wang Weiqi Zhang Zhengwei Xie Jing Qu Jianwei Wang Yichuan xiao Ye Tian Gelin Wang Ping Hu Jing Ye Yu Sun Zhiyong Mao Qing-Peng Kong Qiang Liu Weiguo Zou xiao-Li Tian Zhi-Xiong xiao Yong Liu Jun-Ping Liu Moshi Song Jing-Dong J.Han Guang-Hui Liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Frontier Science Center for Immunology and Metabolism Medical Research InstituteCollege of Life SciencesWuhan UniversityWuhan 430071China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of Tissue Microenvironment and Tumor Shanghai Institute of Nutrition and HealthChinese Academy of SciencesShanghai 200031China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Peking University International Cancer Institute Peking University Health Science CenterPeking UniversityBeijing 100191China School of Pharmaceutical Sciences Tsinghua UniversityBeijing 100084China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China School of Pharmaceutical Sciences Beijing Advanced Innovation Center for Structural BiologyMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyTsinghua UniversityBeijing 100084China Colorectal Cancer Center/Department of Gastrointestinal Surgery Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityShanghai 200072China Department of Geriatrics Medical Center on Aging of Shanghai Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025China International Laboratory in Hematology and Cancer Shanghai Jiaotong University School of Med

Aging is characterized by a progressive deterioration of physiological integrity,leading to impaired functional ability and ultimately increased susceptibility to *** is a major risk factor for chronic human diseases,including cardiovascular disease,diabetes,neurological degeneration,and ***,the growing emphasis on “healthy aging” raises a series of important questions in life and social *** recent years,there has been unprecedented progress in aging research,particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological *** an attempt to bring full-fledged understanding to both the aging process and age-associated diseases,we review the descriptive,conceptual,and interventive aspects of the landscape of aging composed of a number of layers at the cellular,tissue,organ,organ system,and organismal levels.

关键词： aging mechanism intervention

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珠江口外陆架海域表层沉积物重金属潜在生态风险评价及来源分析

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应用海洋学学报 2021年第3期40卷 520-528页

作者：陈斌尹晓娜姜广甲卢楚谦钟煜宏肖瑜璋叶建萍吕向立国家海洋局南海环境监测中心广东广州510300 中海油研究总院北京100028

基于2017年11月珠江口外陆架海域表层沉积物中Hg、As、Cu、Pb、Cd、Zn、Cr等7种重金属元素的调查结果,应用单因子标准指数和地累积指数法评价了研究海域表层沉积物环境质量,采用Häkanson潜在生态风险指数评价法定量评估沉积物中重金属... 详细信息

基于2017年11月珠江口外陆架海域表层沉积物中Hg、As、Cu、Pb、Cd、Zn、Cr等7种重金属元素的调查结果,应用单因子标准指数和地累积指数法评价了研究海域表层沉积物环境质量,采用Häkanson潜在生态风险指数评价法定量评估沉积物中重金属的潜在生态风险,并利用Pearson相关性分析和主成分分析初步探究了研究海域沉积物中重金属的主要来源。结果表明:研究海域表层沉积物中7种重金属污染物含量均达到海洋沉积物质量一类标准,地累积指数显示研究海域表层沉积物环境整体处于清洁状态,部分站位中的As和Cd属轻度污染。总体来说,研究海域沉积物环境属于低潜在生态风险(综合潜在生态风险系数RIHg>As>Pb>Cu>Cr>Zn,研究海域西部表层沉积物重金属Cd的潜在生态风险系数均值达到中等潜在生态风险水平。Cr、Cu和Zn元素具有相近来源,主要为工业产生的陆源污染物;Pb、As和Cd元素来源相似,来源于陆源工业和农业污染经大气沉降及海上交通污染;而Hg与其他重金属元素无明显相关。

关键词：海洋化学沉积物重金属生态风险主成分分析珠江口

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