GSTDTAP

浏览/检索结果: 共8条,第1-8条 帮助

已选(0)清除 条数/页:   排序方式:
Power generation from ambient humidity using protein nanowires 期刊论文
NATURE, 2020, 578 (7796) : 550-+
作者:  Luong, Duy X.;  Bets, Ksenia V.;  Algozeeb, Wala Ali;  Stanford, Michael G.;  Kittrell, Carter;  Chen, Weiyin;  Salvatierra, Rodrigo V.;  Ren, Muqing;  McHugh, Emily A.;  Advincula, Paul A.;  Wang, Zhe;  Bhatt, Mahesh;  Guo, Hua;  Mancevski, Vladimir;  Shahsavari, Rouzbeh;  Yakobson, Boris I.;  Tour, James M.
收藏  |  浏览/下载:112/0  |  提交时间:2020/07/03

Harvesting energy from the environment offers the promise of clean power for self-sustained systems(1,2). Known technologies-such as solar cells, thermoelectric devices and mechanical generators-have specific environmental requirements that restrict where they can be deployed and limit their potential for continuous energy production(3-5). The ubiquity of atmospheric moisture offers an alternative. However, existing moisture-based energy-harvesting technologies can produce only intermittent, brief (shorter than 50 seconds) bursts of power in the ambient environment, owing to the lack of a sustained conversion mechanism(6-12). Here we show that thin-film devices made from nanometre-scale protein wires harvested from the microbe Geobacter sulfurreducens can generate continuous electric power in the ambient environment. The devices produce a sustained voltage of around 0.5 volts across a 7-micrometre-thick film, with a current density of around 17 microamperes per square centimetre. We find the driving force behind this energy generation to be a self-maintained moisture gradient that forms within the film when the film is exposed to the humidity that is naturally present in air. Connecting several devices linearly scales up the voltage and current to power electronics. Our results demonstrate the feasibility of a continuous energy-harvesting strategy that is less restricted by location or environmental conditions than other sustainable approaches.


A new type of energy-harvesting device, based on protein nanowires from the microbe Geobacter sulforreducens, can generate a sustained power output by producing a moisture gradient across the nanowire film using natural humidity.


  
Observed Atmospheric and Surface Variability on Heterogeneous Terrain at the Hectometer Scale and Related Advective Transports 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (16) : 9407-9422
作者:  Simo, Gemma;  Cuxart, Joan;  Jimenez, Maria A.;  Martinez-Villagrasa, Daniel;  Picos, Rodrigo;  Lopez-Grifol, Alvaro;  Marti, Belen
收藏  |  浏览/下载:21/0  |  提交时间:2019/11/27
atmospheric and upper-soil variability  surface energy and water budgets  local thermal advection  station representativeness  humidity advection and evapotranspiration  hectometer scale  
Urban Expansion and Drying Climate in an Urban Agglomeration of East China 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2019, 46 (12) : 6868-6877
作者:  Luo, Ming;  Lau, Ngar-Cheung
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/26
atmospheric humidity  urban dry island  long-term trend  urban expansion  urbanization effect  climate change  
Stable oxygen isotopes in Romanian oak tree rings record summer droughts and associated large-scale circulation patterns over Europe 期刊论文
CLIMATE DYNAMICS, 2019, 52 (11) : 6557-6568
作者:  Nagavciuc, Viorica;  Ionita, Monica;  Persoiu, Aurel;  Popa, Ionel;  Loader, Neil J.;  McCarroll, Danny
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/26
Oak  O-18  Relative humidity  Dendrochronology  Atmospheric circulation  
Indirect Influence of Humidity on Atmospheric Spectra Near 4 mu m 期刊论文
GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (22) : 12593-12601
作者:  Hartmann, J. -M.;  Armante, R.;  Toon, G. C.;  Scott, N.;  Tran, H.;  Crevoisier, C.;  Chedin, A.;  Capelle, V.
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
atmospheric spectra  4 mu m region  influence of humidity  N-2 collision-induced absorption  CO2 line wings  surface temperature retrievals  
Impact of the air temperature and atmospheric circulation on extreme precipitation in Poland 期刊论文
INTERNATIONAL JOURNAL OF CLIMATOLOGY, 2018, 38 (12) : 4533-4549
作者:  Wibig, Joanna;  Piotrowski, Piotr
收藏  |  浏览/下载:20/0  |  提交时间:2019/04/09
atmospheric circulation  Clausius-Clapeyron  humidity transport  Poland  precipitation extremes  Ward'  s k-mean  
Ecohydrological Processes Explain Urban Dry Island Effects in a Wet Region, Southern China 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (9) : 6757-6771
作者:  Hao, Lu;  Huang, Xiaolin;  Qin, Mengsheng;  Liu, Yongqiang;  Li, Wenhong;  Sun, Ge
收藏  |  浏览/下载:28/0  |  提交时间:2019/04/09
urban dry island  ecohydrological processes  land use and land cover change  atmospheric humidity  vapor pressure deficit  wet region  
Trends in continental temperature and humidity directly linked to ocean warming 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (19) : 4863-4868
作者:  Byrne, Michael P.;  39;Gorman, Paul A.
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
continental climate change  temperature  humidity  atmospheric dynamics  moisture transport