纪念汪猷先生百年诞辰

<正>汪猷,字君谋(1910-1997),浙江杭州人.生物有机化学家.1955年当选为中国科学院学部委员(院士);1984年当选为法兰西科学院外籍院士;1988年当选为德国巴伐利亚科学院通讯院士.汪猷在六十多年的科研生涯中,建树颇丰,他在甾体化学、抗生素化学、糖类、多肽、蛋白质、核酸化学和生     

Preface Special Issue in Honor of Professor Zhaowu Tian on His 90~(th) Birthday

<正>The Journal of Electrochemistry is proud to publish this Special Issue Honoring Professor Zhaowu Tian,on the occasion of his 90~(th) birthday,for his enormous contributions to and far-reaching impact in the field of electrochemistry.     

Hydrothermal conversion of zeolite omega from magadiite with assistance of seed crystals

In this work, we report a rapid and sustainable synthetic strategy of zeolite omega with the addition of omega seeds via the transformation of magadiite with an initial chemical recipe of 0.76 NaOH: SiO₂: 0.01 Al₂O₃: 7–14H₂O, and the crystallization time was shortened to 5 h at 80 °C. The effect of experiment parameters has been discussed in details. In addition, the conversion behavior and the changes of secondary building units were characterized and studied by X-ray diffraction (XRD), scanning electron microscopy, Fourier Transform infrared (FT-IR), and Raman spectroscopy and ²⁷Al magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy. During the conversion process, omega seeds would be partially destroyed and residual seeds supplied substrate for the growth of zeolite omega, most parts of five-membered rings and six-membered rings in magadiite were remained as building units to promote the formation of zeolite omega, and Al species preferred to enter T2 position which was located in six-membered rings. The toluene adsorption property of final product was also measured.     

《催化学报》庆祝何鸣元院士八十华诞专刊

《催化学报》以本期专刊的出版庆祝何鸣元院士八十华诞,表达对何先生五十多年来为我国催化及相关领域发展所作出的卓越贡献的崇高敬意!何鸣元先生1940年2月8日出生于上海,1961年毕业于华东纺织工学院(现东华大学)应用化学专业,同年进入石油化工科学研究院工作至今.1980-1984年作为访问学者赴美国西北大学化学系和美国得克萨斯大学奥斯汀分校化工系进行合作研究.2000年以来,应邀兼任华东师范大学教授,2003年领导建立上海市绿色化学与化工过程绿色化重点实验室.何鸣元先生担任过许多学术职务.曾任石油化工科学研究院总工程师、学术委员会副主任,中国科学院学部主席团成员、化学部副主任,中国化学会常务理事、绿色化学专业委员会主任,国际催化理事会理事,国际沸石分子筛协会副主席等.何鸣元先生长期从事催化材料、炼油化工催化剂与工艺研究.发明了一系列沸石分子筛合成新方法与炼油催化剂,开发了双反应区催化裂化增产汽油异构烷烃MIP工艺(Maximum Isoparaffin Process)等多个具有自主知识产权的新工艺,为发展我国重油裂化技术、提高催化裂化汽油辛烷值、开发新标准汽油生产技术等作出了突出贡献.何鸣元先生是我国绿色化学的奠基人之一,他以国民经济可持续增长为目标,大力倡导和推动绿色化学与化工学术研究与技术开发.2001年担任科技部国家基础研究重大项目(2001-2005)'石油炼制与基本有机化学品加工的绿色化学'首席科学家,推动了多项绿色炼油与化工新技术的突破和工业应用.针对碳资源利用过程中所面临的效率低、污染物排放严重等问题,2011年,何先生和合作者从碳资源加工、利用和循环等全周期考虑,提出了'绿色碳科学'的概念,对碳资源的高效、清洁、循环利用具有重要的指导作用.近年来,发起并主持了以'可持续发展能源化工的科学基础:绿色碳科学与绿色氢科学'沸石分子筛:等级特性、选择催化与分子工程'绿色生态环境与化学化工'等为主题的香山科学会议以及其它高水平学术会议,为相关学科指出了发展方向.何鸣元先生获得了许多学术奖励和荣誉.他于1995年当选为中国科学院院士,曾获得国家发明二等奖(1995)、何梁何利科学技术进步奖(2001)、中国催化成就奖(2012)、法国教育部棕榈叶骑士勋章(2012)、法国里昂高师荣誉博士学位(2016)、中国分子筛终身成就奖(2019)等,在国内外催化与石油化工界享有崇高的声誉.本期专刊收录了15篇学术论文,内容涉及新型分子筛催化剂的合成、单原子催化、光催化、电催化以及甲烷、二氧化碳、生物质等碳资源的催化转化等,一定程度上反映了何先生过去五十多年的研究兴趣,并展现了当前国际催化科学与技术研究的前沿和进展.在此,我们衷心感谢论文作者、审稿专家和《催化学报》编辑部等相关人员所给予的大力支持.     

《催化学报》以本期专刊的出版庆祝陈懿先生八十华诞

陈懿(1933)先生是我国著名物理化学家和教育家,长期从事物理化学和多相催化的教学与研究工作.他编写的《物理化学》和《物理化学》简明本(傅献彩、陈懿主编,人民教育出版社,1961、1965年)等基础课程教材影响深远.他在氧化物催化剂组分间相互作用、纳米非晶合金催化剂以及介观化学等领域取得了丰硕的研究成果,发表研究论文400余篇,获得中国发明专利26项,国际专利7项,获国家和省部级学术奖励5项.1996     

Drug Discovery of Nucleos(t)ide Antiviral Agents: Dedicated to Prof. Dr. Erik De Clercq on Occasion of His 80th Birthday

Nucleoside and nucleotide analogues are essential antivirals in the treatment of infectious diseases such as human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), herpes simplex virus (HSV), varicella-zoster virus (VZV), and human cytomegalovirus (HCMV). To celebrate the 80th birthday of Prof. Dr. Erik De Clercq on 28 March 2021, this review provides an overview of his contributions to eight approved nucleos(t)ide drugs: (i) three adenosine nucleotide analogues, namely tenofovir disoproxil fumarate (Viread^®) and tenofovir alafenamide (Vemlidy^®) against HIV and HBV infections and adefovir dipivoxil (Hepsera^®) against HBV infections; (ii) two thymidine nucleoside analogues, namely brivudine (Zostex^®) against HSV-1 and VZV infections and stavudine (Zerit^®) against HIV infections; (iii) two guanosine analogues, namely valacyclovir (Valtrex^®, Zelitrex^®) against HSV and VZV and rabacfosadine (Tanovea^®-CA1) for the treatment of lymphoma in dogs; and (iv) one cytidine nucleotide analogue, namely cidofovir (Vistide^®) for the treatment of HCMV retinitis in AIDS patients. Although adefovir dipivoxil, stavudine, and cidofovir are virtually discontinued for clinical use, tenofovir disoproxil fumarate and tenofovir alafenamide remain the most important antivirals against HIV and HBV infections worldwide. Overall, the broad-spectrum antiviral potential of nucleos(t)ide analogues supports their development to treat or prevent current and emerging infectious diseases worldwide.     

介孔分子筛SBA-15的研究进展

介孔分子筛SBA-15具有独特的物理化学性质和广阔的应用前景,成为众多研究领域的一个研究热点.本文结合我们自己的工作和国内外相关研究,较全面地介绍了近年来SBA-15的研究状况,并展望了今后的发展方向和应用前景.     

介孔分子筛V-MCM-41的水热法制备与合成机理

 以十六烷基三甲基溴化铵为模板剂,廉价的工业级高模数比(3.3)的硅酸钠为硅源,通过水热法合成了V-MCM-41介孔分子筛. 考察了合成条件对产物织构的影响,并采用低温氮吸附法分析探讨了介孔分子筛V-MCM-41的合成机理. 结果表明,模板剂用量、 pH值、加料方式、晶化温度、晶化时间、陈化时间和焙烧气氛等合成条件对介孔分子筛的制备均有影响,其中晶化温度、 pH值和模板剂用量的影响最为明显. X射线衍射谱表明合成的介孔分子筛具有六方晶体结构. 红外光谱和紫外可见光谱表明V进入了介孔分子筛的骨架结构.     

甲醇制烃反应机理研究进展

综述了甲醇制烃(MTH)反应机理的研究概况.分别介绍了MTH反应过程中的二甲醚生成、烃池机理、深度反应、催化剂失活原因和副产物甲烷的生成途径,重点综述了烃池机理的研究进展和存在的争议.指出了明确分子筛结构和酸性对烃池物种类型、低碳烯烃生成路径的影响以及初始C—C键形成机制是未来MTH机理研究的方向,据此指导并开发出抗积炭失活能力强、目标产物选择性高的催化剂仍是改进MTH工艺的关键.     

A tribute to professor Robert West,on the occasion of his 90th birthday

Abstract

This is for Bob, and for his vast number of friends and colleagues who wish to celebrate his 90^th birthday. On this occasion we express our admiration, friendship, and appreciation for the wonderful adventures that he has shared with so many of us. While we are limited to providing a personal account of our experience of Bob, we believe that what we describe will in some way resonant with those who know him. Not surprisingly, the life of a great person is dedicated to all possible kinds of movement (mentally and physically) always curious and ready to find out what future brings rather than looking back upon the past. Needless to say – Bob moves quickly. Very quickly. So we will not pretend that we, or anyone else, could capture the essence of the man. As much as he immerses himself in the moment, it seems a losing proposition to try to identify something singular and unchanging about him. As Heraclitus says “we can never step into the same river twice,” so has been our experience, and delight, with Bob. It is our hope that many other accounts of Bob will be told and retold during the events celebrating his 90^th birthday.