日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Global EditionASIA 中文雙語(yǔ)Fran?ais
World
Home / World / China-Europe

Scientists make artificial photosynthesis breakthrough

By Angus McNeice in London | China Daily UK | Updated: 2018-10-03 16:56
Share
Share - WeChat

A discovery made by British and Chinese researchers has taken scientists one step closer to the generation of clean energy by using sunlight to split water molecules, just as plants do through photosynthesis.

Researchers from the University of Liverpool, University College London and East China University of Science and Technology have synthesized a new organic material that works together with sunlight to separate water into its constituent elements, oxygen and hydrogen.

Pure hydrogen is a zero-emission fuel that can be used in engines or batteries, so the breakthrough could lead to an abundant clean energy source for the future.

"Ideally, in the future we will be able to use such materials along with sunlight and water to produce large amounts of hydrogen," said Wang Xiaoyan, a researcher in the chemistry department at the University of Liverpool, and lead author on the study published in the journal Nature.

"It's early and we are in the fundamental research stage, but our study is one step towards this," he added.

Hydrogen is already used as a fuel for spacecraft and in some ground transport vehicles. The element is abundant on earth in compounds such as water and fossil fuels, however it is rarely found in its pure form.

Current industrial methods of hydrogen production have significant drawbacks. Hydrogen can be separated from oxygen via electrolysis, which involves passing an electric current through water, but this process is energy intensive.

The most common method of producing pure hydrogen is through steam-methane reforming. At high temperatures, methane - formed of hydrogen and carbon - reacts with steam to produce carbon dioxide and hydrogen. Since this process generates CO2, which is a greenhouse gas, it is not considered a clean method of fuel production.

Scientists have long marveled at the ability of plants to split water molecules using sunlight during photosynthesis. Several researchers have successfully mimicked photosynthesis through a process called photocatalytic water splitting, although so far no methods have proven efficient enough to be commercially viable.

The material synthesized by Wang and his colleagues is a promising new development. In photocatalytic water splitting, sunlight hits an organic or inorganic catalyst, generating electrons and holes which split the water molecule into hydrogen and oxygen.

Inorganic catalysts are generally more efficient than organic catalysts, however it is far simpler to make water-splitting devices using the latter.

The team at Liverpool has managed to synthesize an organic sulphur-based material which essentially allows for the best of both worlds. It lends itself more easily than inorganic catalysts to the manufacture of water splitting devices, and is more efficient than most known organic alternatives.

Wang's research is part funded by the China Scholarship Council, which runs a program that attracts PhD candidates from China to carry out their studies at the University of Liverpool Materials Innovation Factory, also known as the MIF.

"It is a good example of the vital need to hire the best researchers from all over the world, and to collaborate with teams in other countries," said Andrew Cooper, director of the MIF and academic lead on the new study. "Top-level science is an international endeavor."

Most Viewed in 24 Hours
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 久久精品久久精品久久 | 天天综合久久 | 免费观看黄色小视频 | 可以免费观看的av | 亚洲成人第一页 | 伦理午夜电影免费观看 | 99国产精品视频免费观看 | 国产美女极品免费视频 | 激情小说激情图片激情电影 | 久久精品夜夜夜夜夜久久 | av影片在线 | 日韩欧美大片在线观看 | 欧美日韩一二三区 | 男女www视频 | 91在线视频播放 | 五月婷婷久久综合 | 日韩欧美在线观看 | 排球少年第四季樱花动漫 | 免费毛片看| 91视频麻豆视频 | 国产成人精品在线 | 一区二区三区在线电影 | 成人黄色在线观看视频 | 精品一久久| 日本一本久道 | 午夜在线观看cao | 成人久久18免费观看 | 一区二区三区无码高清视频 | a一级黄色片 | 日本在线观看高清不卡免v 国产成人一区二区精品非洲 | 免费观看呢日本天堂视频 | 最新中文字幕 | 亚洲视频免费 | 日韩一级大毛片欧美一级 | 色综合中文字幕 | 奇米777狠狠 | 国产亚洲精品一品区99热 | 精品一区二区三区在线观看 | 欧美性猛交一区二区三区精品 | 欧美视频精品 | 精品一本久久中文字幕 |