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35yuanzuoyoudeniurou,womenjiachiliaosandun。yuanweitoushedianzixianweijingzainengyuancailiaoheqijianzhongdeyingyong2019-06-29 16:42·yanzhichengli▲diyizuozhe:fanzheng;tongxunzuozhe:duanxiangfeng,huangzuo,huangjianyu,shiyumeng;tongxundanwei:shenzhendaxue,jiazhoudaxueluoshanzuofenxiaolunwenDOI:10.1002/adma.201900608quanwensulanjiazhoudaxueluoshanzuofenxiaoduanxiangfengtuanduiyuyanshandaxuehuangjianyujiaoshouhezuo,zai Advanced Materials shangfabiaoliaoguanyunengyuancailiaoheqijianzhongyuanweitoushedianzixianweijingbiaozhengjishudezongshuwenzhang,xiangxiguinazongjieliaoyuanweitoushedianzixianweijingzaikechongfangdianchunengtixi、ranliaodianchi、gaizuokuangtaiyangnengdianchidengxinnengyuanlingyuzhongdebiaozhengjishu,bingduiweilaibiaozhengjishujinxingzhanwang。beijingjieshaosuizhuokexueyiqijishudebuduanfazhan,xianjindeyiqishebeikaituoliaowomentansuoweizhilingyudenengli,dadaoyuzhouxiaodaodangeyuanzi,kexueyiqidejinburangkeyanrenyuanshixianliaoduiwuzhineibuxiangguanfanyingdekeshixinghezhangkongxing,congerjinyibushixiankexuejishudetupo。xinnengyuanjishudekuaisufazhanshikeyanrenyuanjujiaoyuxinxingnengliangzhuanhuanqijian,rukechongfangdiandianchi、ranliaodianchihetaiyangnengdianchideng。zaifazhannengliangzhuanhuanqijianzhong,shiyongxianjindekexueyiqizhiguandejianceqijianneibudehuaxuefanyinghenengliangzhuanhuandengfanyingxijieduiyuyouhuaheshejiqijianshizhiguanzhongyaode。womenshiyongzhiguanbiaozhengjishutancechunengqijianzhongdefuzahuaxuefanying、wuxiangzhuanhuayijidianliuqushi,duiyuyanjiunengyuanzhuanhuandejilihebenzhiqidaozhiguanzhongyaodezuoyong。yinci,yanjiuzhekaifayixilieyuanweidianzixianweixuejishuyongyuxinxingchunengcailiaoheqijian。zaixianweixuejishuzhong,yuanweisaomiaodianzixianweijingkeyishishijiancenamicailiaodebianhua,danshiduiyuyanjiuyuanzichidudejiegoudonglixuejuyoujuxianxing。yuanzilixianweijinghesaomiaosuidaoxianweijingsuiranjuyoujiechushiceliangheyuanzijifenbianlvdeyoushi,danshiyoujinjuxianyucailiaodebiaomianjiance。yinci,zaiyanjiunengyuancailiaoheqijianshi,yuanweitoushedianjingduiyuqijianneibudehuaxuefanyinghewuxiangbianhuatigongliaozhiguandejiance。zhezhongxinfangfaweijichudianhuaxuefanyingyanjiutigongliaoguanjiandejishuzhicheng,keyishenrutansuochunengqijianneibudedianjicailiaojiegouzhuanbian、cuihuaguochengheshuaijianjizhi。xianjindeyuanweisaomiaodianzixianweijingjishuweikaituogaogonglvmidu、gaonengliangmidudewendingxingxinnengyuanqijiantigongjianshidekeyanjichu。benpianzongshuwomenjiangzhuozhongjieshaoyuanweitoushedianzixianweijingzaibiaozhengnengyuancailiaofangmiandeyingyonghejinzhan,shouxianjianminghuiguyuanweiTEMbiaozhengjishuzaichunengqijianzhongdegongzuoyuanlihefazhanjincheng,qici,womenjiangxitongdezongjieyuanweiTEMnamidianchijishuzaizuolizidianchi、ranliaodianchihegaizuokuangtaiyangnengdianchizhongdeyingyong。zuihou,womenjiangtaolunhuanjingsaomiaodianjing(ETEM)hediwenlengdongdianjing(cryo-EM)zaitancexinxingnengyuancailiaoheqijiandeyingyong。yanjiuchufadianjinqi,jiazhoudaxueluoshanzuofenxiaoduanxiangfengjiaoshou、huangzuojiaoshouheyanshandaxuehuangjianyujiaoshoulianhezai Advanced Materials qikanshangfabiaotiwei“In Situ Transmission Electron Microscopy for Energy Materials and Devices” zongshulunwen。gaigongzuoshouxianjieshaoliao TEM shiyangancongkaifangjiegoudaofengbijiegoudeyanbianguocheng,xitongdeguinaliaoyuanweitoushedianjingzaiduozhongnengyuancailiaoheqijianzhongdeshishijiancejishu,taolunliaohuanjingsaomiaodianjinghelengdongdianzidianjingzaibiaozhengqingjienengyuancailiaodeguanjianjishu。zongshuzhenduinengyuancailiaoheqijianyuanweitoushedianjingbiaozhengjinxingliaoxiangxidetaolunhefenxiduibi。zuihoutaolunliaoyuanweitoushedianjingxinjishuzaichunengqijianzhongdexintiaozhan。tuwenjiexi▲Figure 1. Development path of in situ TEM nanocells and their applications in the investigation of LIBs, chemical fuel cells, and PSCs. a) Open-cell setup for LIB investigation. b) Electrochemical liquid-cell setup for LIB investigation. c) Electrochemical liquid-cell setup for fuel cell investigation. d) Graphene liquid cell. e) Gas flow cell for PSC investigation.zuichudeyuanweitoushedianjingbiaozhengjishuzhuyaoyanjiudangennamixiandianjizaizuolizidianchizhongdeyingyong,zhenduizuolizidianchijishucunzaideguanjianwenti,rudianjicailiaozhongzuolizideqianru/tuochu、SEI modexingcheng、dianchideshuaijianhewendingxingdeng,jinxingzhiguandetancehebiaozheng。rutu1,suizhuoyiqijishudebuduangaijinyutigao,yuanweitoushedianjingbiaozhengnengyuanqijiancongchujideguanchadangennamixiandianjizhubuyanbianchengzhiguanbiaozhengyetidianhuaxuechunengtixi、ranliaodianchidedianhuaxuexingneng、gaizuokuangtaiyangnengdianchideng。xianjindeyiqikexuejishurangwomengengshenruzhiguandezhangwochunengqijianneibuhuaxuefanyingguochenghenengliangzhuanhuaguocheng,yuanweitoushedianjingdeyingyongjiangxiezhuwomentupogongyijishudexianzhi,youxiaokaifaxinxingnengyuancailiaoheqijian。1. yuanwei TEM zaikechongfangdianlizidianchizhongdeyingyong▲Figure 2. In situ open-cell configurations used for studying the reaction mechanisms of LIB electrode materials. a,b) Intercalation reactions during the battery operation. a) The embrittlement of MWNT caused by Li-ion insertion/extraction. Scale bars: I) 100 nm, II) 25 nm, and III) 50 nm. Reproduced with permission. Copyright 2011, American Chemical Society. b) The movement of a phase transition region (PTR) in a LiMn2O4 nanowire cathode during the charging/discharging process. Reproduced with permission. Copyright 2015, American Chemical Society. c,d) Alloy reactions during the lithiation of silicon. c) Anisotropic swelling of a Si nanowire during lithiation. Scale bar: 100 nm. Reproduced with permission. Copyright 2011, American Chemical Society. d) Size-dependent fracture of a fully lithiated Si nanoparticle. Reproduced with permission. Copyright 2012, American Chemical Society. e,f) Conversion reactions on the electrode material. e) Conversion-reaction-based lithiation mechanism in an individual SnO2 nanowire. Reproduced with permission. Copyright 2013, American Chemical Society. f) Two-step intercalation conversion in the Fe3O4 lithiation process. Scale bar: 20 nm. Reproduced with permission. Copyright 2016, Nature Publishing Group.jiyudianjicailiaohuaxuexingzhidebutong,kechongfangdianlizidianchidedianjicailiaochunengjilikeyifenweichacengfanying、hejinhuafanyinghezhuanhuanfanying。fazhankaifangshihebiheshijiegoudeyuanwei TEM jiqiceshijishu,keyizhijieguancechunengqijianchongfangdianguochengzhongdianjicailiaodedianhuaxuefanyingguochengjiweiguanjiegoubianhua。2. yuanwei TEM bikoujiegouzairanliaodianchizhongdeyingyong▲Figure 3. In situ closed cell for chemical fuel reaction investigation. a–c) Nanocatalyst growth trajectory observation. a) Direct observation of the growth of individual Pt nanoparticles. Scale bar: 5 nm. Reproduced with permission.Copyright 2009, The American Association for the Advancement of Science. b) The formation of a Pt3Fe nanorod from Pt3Fe nanoparticles. Scale bar: 2 nm. Reproduced with permission.Copyright 2012, The American Association for the Advancement of Science. c) Atomic-level observation of the facet growth of a Pt nanocube through a direct electron camera. Reproduced with permission.Copyright 2014, The American Association for the Advancement of Science. d,e) In situ observation of nanocatalyst degradation. d) Structural evolution of Pt–Fe nanocatalysts under an electrochemical reaction. Scale bar: 10 μm. Reproduced with permission. Copyright 2014, American Chemical Society. e) A specifically designed electrochemical TEM liquid cell using the actual ORR electrolyte (HClO4) for electrochemical characterization. Reproduced with permission. Copyright 2016, SAE International. f,g) In situ TEM closed cell plus UV characterization of the photocatalytic H2 evolution on anatase TiO2. f) Experimental setup of a fluidic TEM holder for in situ UV illumination. g) Photocatalysis evolution under UV exposure. f,g) Reproduced with permission.Copyright 2018, Nature Publishing Group.duiyuranliaodianchi,yuanwei TEM feichangshiheyongyuguanchadianchineibucuihuacailiaodelaohuaguocheng,juyouyeticunfangdanyuandeyuanwei TEM keyijiance ORR dengyexiangdianhuaxuefanying,shishiguancediancuihuajidexingmaohejiegoubianhua,congerrangyuanwei TEM chengweiyuanzichidushangdeguanchadianhuaxuefanyingdeyouligongju。3. yuanwei TEM zaigaizuokuangtaiyangnengdianchizhongdeyingyong▲Figure 4. In situ TEM approaches in perovskite solar cell investigation. a,b) Perovskite aging studies using an MEMS-based TEM heating cell. These investigations revealed the influence of the fabrication route on the stability of the perovskite solar cell. a) A MAPbI3-based perovskite degradation study through HAADF imaging. Scale bars: 200 nm. Reproduced with permission.Copyright 2016, American Chemical Society. b) An in situ heating test of MAPbI3 perovskite. Scale bar: 500 nm. Reproduced with permission. Copyright 2016, Nature Publishing Group. c–e) In situ gas-cell TEM investigations on the thermal degradation mechanisms of MAPbI3. c) A schematic of the in situ gas cell. d) Layer-by-layer degradation of the MAPbI3 perovskite. e) Theoretical calculations of the MAPbI3 degradation process. c–e) Reproduced with permission. Copyright 2017, Cell Press.gaizuokuangtaiyangnengdianchiyinqisuoxudeyuancailiaochuliangfengfu,zhibeigongyijiandanqiekeyicaiyongdiwen、dichengbendegongyishixiangaopinzhidebaomoeryongyouyourendeqianjing。raner,jiyugaizuokuangdetaiyangnengdianchiqijiancunzaijiegouhezufendebuwendingxingdengwenti。yincikeyitongguoyuanwei TEM shishiguancegaizuokuangcailiaodexingmaoyanbianheshengchangguocheng,tuijinduigaizuokuangcailiaoderejiangjiejizhishenrulijie。4. yuanwei TEM zaihuanjing TEM zhongdeyingyong▲Figure 5. In situ TEM nanocell approaches in ETEM for alkali metal–oxygen battery studies. a–c) In situ TEM electrochemistry investigations on Li–O2 nanobatteries. Scale bar: 50 nm. Reproduced with permission.Copyright 2017, Nature Publishing Group. d,e) In situ TEM electrochemistry investigations on Na–O2 nanobatteries. Scale bar: 300 nm. Reproduced with permission. Copyright 2018, American Chemical Society.zaixinnengyuanjishuzhong,jinshukongqidianchiyouyuqilingwuranhegaolilunrongliangerbeishouguanzhu,erjinshukongqidianchixuyaozaichunyangqifenweizhonggongzuo。ETEM keyiyunxu TEM yangpinshideqiliudadao 20mbar,zhexiangjishukeyiyongyujinshukongqidianchichunengqijiandeyuanweibiaozhengyanjiu,shishijieshiliaochongfangdianguocheng、wuxiangzhuanhuayijidianhuaxuefanyingguocheng。5. diwenlengdongdianzidianjingzainamidianchizhongdeyanjiu▲Figure 6.Cryo-EM in Li dendrite and SEI layer characterization.a) An approach for preserving and stabilizing Li metal. Reproduced with permission. [184] Copyright 2017, The American Association for the Advancement of Science. b) Li metal deposition and stripping morphology with a mosaic and multilayer SEI nanostructure. Reproduced with permission.[75] Copyright 2018, Cell Press. c) EELS analysis of the carbon-bonding environment near the dendrites. Scale bars: 300 nm. Reproduced with permission.zaijinshuzuodianchichunengxitongzhong,youyujinshuzuozaikongqihedianzifushexiadubuwending,chuantongdeyuanweitoushedianjingjishuhennanbiaozhengqidianjijiegou。weikefuzheyinanti,tongguoshengwulengdongdianjingjishudeqifa,yongyedanlengdongjinshuzuodianji,shidianjibaochiyuanyouxingtaigouzaohehuaxuexinxi,jishizaidianzishuchangshijianfushexia,zuojinshuzhijingxingmaorengranbaochiwanzheng。zongjieyuzhanwangsuizhuoyuanweibiaozhengjishudekuaisufazhan,yuanwei TEM biaozhengjishuyijingtupoduozhongjishunanti,shixianliaodianjicailiaodeweinajiegouyubiaojiemiandeyuanweibiaozhengfangfa,jieheyuanwei TEM tancedianjicailiaodewuxiangbianhua、jingtijiegou,jieshichunengcailiaojiemianfanyingdeyuanweiyanhuaguilv。duiyucifangxiangdejishuchuangxin,womenjiangyouyixiajifangmiantichuzhanwang:1. shixianyichongfangdianshijianweijizhundesiweichengxiangjishu,kaifajuyounaijiuxingdeyuanweibiaozhengjishu,shishitancenengyuanqijiandewanzhengshiyongzhouqineiwuxiangzhuanhuanguocheng。bingyuchanyehuanengyuanqijianxiangjiehe,gengjingzhundejiancechunengqijianzhongdedianjijiegoubianhua、xunhuanchongfangdianyinqidereshixiaojili、cuihuajilaohuadengwenti。2. dangshimoxizuoweideyeticunfangdanyuanshi,keyiyouxiaohuluedianzisanshe,congershixianyuanzijifenbianlv,danshiyoushimoxibaomojinxingfengzhuangdeyeticunfangqixuyaoyilaidianzishuzuoweiqidongdianhuaxuefanyingdereyuan,zhezhongbunengdingliangdereyuanbuliyuguanchadianjicailiaodejiegoubianhua。yinci,womenxiwangtongguo MEMS jishuzhibeidianjiyuanweijiarexitong,zaishimoxiyeticunfangkongjianshixiankekongdedianhuaxuereyinfazhuangzhi。3. chixukaifashiyongyujiancenengyuanqijiandeduogongneng TEM yangpintai,yangpintaideduogongnenghuajiangkaibibiaozhengnengyuancailiaodexinlujing,keyiyingyongyuduozhongshiyantiaojiandeyangpinxinxicaiji,liruzhengheyadianchuanganqihedanqiyu TEM yangpintai,yongyubiaozhengzuojinshudianjihe SEI dewuxiangbianhua。Zeptools muqianzhengzaiyanfayuanweiyedan TEM-STM lianheyangpintai,yuanweiyexiang TEM-STM lianheyangpintai,yuanweiqixiang TEM-STM lianheyangpintaideng。4. guangxuejishudexunmengfazhan,yegeiyiqibiaozhengjishudailailiaoxindeyanjiufangfa。kangnaierdaxuede Muller tuanduikaifaliaoxinxingdefencengyanshetuxiangzhongjianjishu,bingduliyanfadianzijiancexiangji,zaidigongzuodianji(80kV)chengxiangtiaojianxia,rengnengbaochifenbianlv 0.04 nm。zhezhongtupoxingdejinzhanweidianjixianweijishuzainengyuancailiaoheqijianzhongdeyingyongkaiqiliaoxindepianzhang。xindeyutihuiwanchengzhepianzongshu,zuidadetihuishibutonglingyuzhijianhezuosuobengfachudehuohua,yijiganshoudaoguojixianjinkexuetuanduiduiyuqianyanyiqidetuichong,bingqiebuduanyunyongyudangqianderedianwenti。zheyangdeshijianfeichangyouliyukaizhanyixiliezhongdayuanchuangxinglilundeyanjiu,yiqudeguojilingxiandechengguo。zaiwenzhangzhunbeideguochengzhong,shenkeganshoudaoliaoyiduanxiangfengweidaibiaodedingjiankexuejiamenhuxiangzhijiankaichengbugong,jingchenghezuodetaidu。xiangjiaoyuyiwangleisidezongshu,benwenlizuyushiyanyiqidefazhanzhegezuigenbendeyanjiujichu,gengquanmiandigaikuoliaotoushedianjingduiyuchunengcailiaoheqijianfazhandegongxian,congershidezuochudezhanwanggengjuyouqianzhanxinghekekaoxing,yeshidewenzhangshunlibeiquanqiucailiaoxuekeyingxianglijushoude Advanced Materials qikansuoshoulu。duiyubenwendeshunlifabiao,feichangganxieduanxiangfengjiaoshou,huangzuojiaoshou,huangjianyujiaoshousanweishijiezhimingcailiaokexuejiadexinqinzhidao,yijiduanzuodongjiaoshou,shiyumengjiaoshoudequanlizhichi,bingqieganxie meilinboshi,Daniel Baumann boshi,zhangliqiangboshiheyaoyuxingtongxuedexiezhu。wenzhanglianjie:https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.201900608(dianjiwenmo?yueduyuanwen?zhidayuanwenyuedu)

"李(Li)军(Jun),我(Wo)们(Men)能(Neng)不(Bu)能(Neng)谈(Tan)一(Yi)谈(Tan)?" 她(Ta)终(Zhong)于(Yu)打(Da)破(Po)了(Liao)沉(Chen)默(Mo),声(Sheng)音(Yin)中(Zhong)带(Dai)着(Zhuo)几(Ji)分(Fen)不(Bu)安(An)和(He)疏(Shu)远(Yuan)。我(Wo)点(Dian)了(Liao)点(Dian)头(Tou),试(Shi)图(Tu)保(Bao)持(Chi)镇(Zhen)定(Ding)。她(Ta)继(Ji)续(Xu)说(Shuo)道(Dao),试(Shi)图(Tu)解(Jie)释(Shi)她(Ta)的(De)来(Lai)意(Yi),以(Yi)及(Ji)她(Ta)对(Dui)我(Wo)们(Men)儿(Er)子(Zi)未(Wei)来(Lai)的(De)期(Qi)望(Wang)和(He)支(Zhi)持(Chi)。但(Dan)每(Mei)一(Yi)句(Ju)话(Hua),都(Du)像(Xiang)是(Shi)一(Yi)个(Ge)针(Zhen)尖(Jian),扎(Zha)在(Zai)我(Wo)心(Xin)里(Li),勾(Gou)起(Qi)了(Liao)过(Guo)去(Qu)太(Tai)多(Duo)的(De)回(Hui)忆(Yi)和(He)情(Qing)感(Gan)。

图说:乔舒亚·雷默与苏世民的高端对话 新民晚报记者 陈梦泽 摄科大讯飞股份有限公司于2022年7月3日召开的第五届董事会第二十五次会议审议通过了。公司拟使用自有资金或自筹资金以集中竞价的方式回购公司发行的人民币普通股,回购股份将全部用于股权激励或员工持股计划,回购股份的资金总额不超过人民币10亿元,不低于人民币5亿元,回购价格不超过58.60元/股,具体回购股份的数量以回购期满时实际回购的股份数量为准。回购期限自董事会审议通过本次回购方案之日起12个月内。具体内容详见刊登在2022年7月4日的及巨潮资讯网http://www.cninfo.com.cn披露的。庆余年 第一季3在线播放-电视剧庆余年 第一季全集免费...

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