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中国摆脱煤炭有利于能源转型 快报文章
地球科学快报,2020年第17期
作者:  王立伟
Microsoft Word(13Kb)  |  收藏  |  浏览/下载:318/0  |  提交时间:2020/09/09
Coal  China  Energy transformation  
Conversion of non-van der Waals solids to 2D transition-metal chalcogenides 期刊论文
NATURE, 2020, 577 (7791) : 492-+
作者:  Du, Zhiguo;  Yang, Shubin;  Li, Songmei;  Lou, Jun;  Zhang, Shuqing;  Wang, Shuai;  Li, Bin;  Gong, Yongji;  Song, Li;  Zou, Xiaolong;  Ajayan, Pulickel M.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/03

A synthetic approach is described, for efficiently converting non-van der Waals solids into two-dimensional van der Waals transition-metal chalcogenide layers with specific phases, enabling the high-throughput production of monolayers.


Although two-dimensional (2D) atomic layers, such as transition-metal chalcogenides, have been widely synthesized using techniques such as exfoliation(1-3) and vapour-phase growth(4,5), it is still challenging to obtain phase-controlled 2D structures(6-8). Here we demonstrate an effective synthesis strategy via the progressive transformation of non-van der Waals (non-vdW) solids to 2D vdW transition-metal chalcogenide layers with identified 2H (trigonal prismatic)/1T (octahedral) phases. The transformation, achieved by exposing non-vdW solids to chalcogen vapours, can be controlled using the enthalpies and vapour pressures of the reaction products. Heteroatom-substituted (such as yttrium and phosphorus) transition-metal chalcogenides can also be synthesized in this way, thus enabling a generic synthesis approach to engineering phase-selected 2D transition-metal chalcogenide structures with good stability at high temperatures (up to 1,373 kelvin) and achieving high-throughput production of monolayers. We anticipate that these 2D transition-metal chalcogenides will have broad applications for electronics, catalysis and energy storage.


  
EPAct Alternative Fuel Transportation Program (Brochure) 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  [null]
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
ALTERNATIVE FUEL TRANSPORTATION PROGRAM  ENERGY POLICY ACT  EPACT  ALTERNATIVE FUELS  ALTERNATIVE FUEL VEHICLES  AFVS  BIODIESEL  ANNUAL REPORTING  ANNUAL REPORT  STATE AND ALTERNATIVE FUEL PROVIDER FLEETS  STATE FLEETS  ALTERNATIVE FUEL PROVIDER FLEETS  MARKET TRANSFORMATION  
Economic and Technical Feasibility Study of Utility-Scale Wind Generation for the New York Buffalo River and South Buffalo Brownfield Opportunity Areas 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  Roberts, J. O.;  Mosey, G.
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/05
EPA WIND POWER  EPA BROWNFIELD WIND POWER  BROWNFIELD WIND POWER  BUFFALO RIVER WIND POWER  WIND POWER  EPA  BROWNFIELD  BUFFALO  Wind Energy  Energy Analysis  Market Transformation  
State and Alternative Fuel Provider Fleet Compliance Methods (Revised) (Brochure) 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  [null]
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
TRANSPORTATION  MARKET TRANSFORMATION  VEHICLE TECHNOLOGIES OFFICE  VTO  EPACT  ENERGY POLICY ACT  STATE AND ALTERNATIVE FUEL PROVIDER FLEETS  SFP  STATE FLEETS  ALTERNATIVE FUEL PROVIDER FLEETS  ALTERNATIVE FUEL VEHICLE  STANDARD COMPLIANCE  ALTERNATIVE COMPLIANCE  
EPAct Programs Share Goals, Collaborate for Success (Revised) (Fact Sheet) 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  [null]
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/05
TRANSPORTATION  MARKET TRANSFORMATION  VEHICLE TECHNOLOGIES OFFICE  VTO  EPACT  ENERGY POLICY ACT  STATE AND ALTERNATIVE FUEL PROVIDER FLEETS  SFP  STATE FLEETS  ALTERNATIVE FUEL PROVIDER FLEETS  EPACT REQUIREMENTS  CLEAN CITIES RESOURCES  VEHICLE FLEETS  
Feasibility Study of Economics and Performance of Solar Photovoltaics at the Ft. Hood Military Base Outside Killeen, Texas. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Rene 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Geiger, J.;  Lisell, L.;  Mosey, G.
收藏  |  浏览/下载:9/0  |  提交时间:2019/04/05
PHOTOVOLTAIC  PV  EPA  FORT HOOD  TEXAS  KILLEEN  ARMY BASE  FINANCING  JEDI  SAM  Solar Energy - Photovoltaics  Energy Analysis  Market Transformation  
Technical and Economic Feasibility Study of Utility-Scale Wind at the Doepke-Holliday Superfund Site. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potent 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Roberts, J. O.;  Mosey, G.
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/05
WIND TURBINE  LANDFILL  SUPERFUND  EPA  FEASIBILITY STUDY  DOEPKE  JOHNSON COUNTY LANDFILL  Wind Energy  Energy Analysis  Market Transformation  
Feasibility Study of Economics and Performance of Biopower at the Chanute Air Force Base in Rantoul, Illinois. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Scarlata, C.;  Mosey, G.
收藏  |  浏览/下载:1/0  |  提交时间:2019/04/05
RANTOUL  ILLINOIS  FEASIBILITY STUDY  CHANUTE AIR FORCE BASE  BIOPOWER  BIOMASS  BIOENERGY  COMBINED HEAT AND POWER  CHP  INCENTIVES  RENEWABLE PORTFOLIO STANDARD  RPS  ECONOMICS  Market Transformation  Energy Analysis  Bioenergy  
Feasibility Study of Economics and Performance of Solar Photovoltaics at the Former Fort Ord Army Base Site in Marina, California. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siti 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Stoltenberg, B.;  Konz, C.;  Mosey, G.
收藏  |  浏览/下载:11/0  |  提交时间:2019/04/05
PHOTOVOLTAICS  PV  EPA  FEASIBILITY STUDY  MARINA  CALIFORNIA  FORT ORD ARMY BASE  FINANCING  ECONOMICS  SUPERFUND  NET METERING  SAM  SYSTEM ADVISOR MODEL  JEDI  Solar Energy - Photovoltaics  Market Transformation  Energy Analysis