24小时热门版块排行榜    

Znn3bq.jpeg
查看: 3566  |  回复: 24

xiejf

专家顾问 (文学泰斗)

麦麦爸爸爱小牛

[交流] Nature最新研究进展:无金属有机-无机液流电池 已有6人参与

最新一期的Nature杂志刊发了美国哈佛大学Michael J. Aziz课题组的最新研究进展,题为A metal-free organic–inorganic aqueous flow battery,介绍了一种新型的不含金属元素的有机-无机液流电池,实现了廉价且高能量密度的能源存储方式。
As the fraction of electricity generation from intermittent renewable sources—such as solar or wind—grows, the ability to store large amounts of electrical energy is of increasing importance. Solid-electrode batteries maintain discharge at peak power for far too short a time to fully regulate wind or solar power output1, 2. In contrast, flow batteries can independently scale the power (electrode area) and energy (arbitrarily large storage volume) components of the system by maintaining all of the electro-active species in fluid form3, 4, 5. Wide-scale utilization of flow batteries is, however, limited by the abundance and cost of these materials, particularly those using redox-active metals and precious-metal electrocatalysts6, 7. Here we describe a class of energy storage materials that exploits the favourable chemical and electrochemical properties of a family of molecules known as quinones. The example we demonstrate is a metal-free flow battery based on the redox chemistry of 9,10-anthraquinone-2,7-disulphonic acid (AQDS). AQDS undergoes extremely rapid and reversible two-electron two-proton reduction on a glassy carbon electrode in sulphuric acid. An aqueous flow battery with inexpensive carbon electrodes, combining the quinone/hydroquinone couple with the Br2/Br− redox couple, yields a peak galvanic power density exceeding 0.6 W cm−2 at 1.3 A cm−2. Cycling of this quinone–bromide flow battery showed >99 per cent storage capacity retention per cycle. The organic anthraquinone species can be synthesized from inexpensive commodity chemicals8. This organic approach permits tuning of important properties such as the reduction potential and solubility by adding functional groups: for example, we demonstrate that the addition of two hydroxy groups to AQDS increases the open circuit potential of the cell by 11% and we describe a pathway for further increases in cell voltage. The use of π-aromatic redox-active organic molecules instead of redox-active metals represents a new and promising direction for realizing massive electrical energy storage at greatly reduced cost.
/Nature最新研究进展:无金属有机-无机液流电池
nature12909-f1.jpg
回复此楼

» 本帖附件资源列表

  • 欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
    本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
  • 附件 1 : A_metal-free_organic–inorganic_aqueous_flow_battery.pdf
  • 2014-01-09 21:47:12, 1.07 M

» 收录本帖的淘帖专辑推荐

纳米化学/电化学综述 科技 综述类文章+前沿研究 深度情怀
精华

» 本帖已获得的红花(最新10朵)

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

麦麦爸爸爱小牛
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

求泊君

木虫 (小有名气)

0.8

感谢楼主无私分享!赞一个!
愿用我的一生,换你十年天真无邪。
2楼2014-01-09 22:10:22
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
3楼2014-01-09 22:35:45
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

感谢分享!

[ 发自手机版 http://muchong.com/3g ]
4楼2014-01-09 23:08:11
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
5楼2014-01-10 00:09:09
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
6楼2014-01-10 03:28:00
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

lukecana

至尊木虫 (著名写手)

头衔待定

0.8

顶一下,感谢分享!真的不错
中华皇家学院临时农民工
7楼2014-01-10 04:24:39
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
8楼2014-01-10 06:43:33
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
9楼2014-01-10 07:30:02
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

0.8

顶一下,感谢分享!
10楼2014-01-10 08:22:09
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 xiejf 的主题更新
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考博] 华师大读博 +3 xq83 2026-04-22 3/150 2026-04-22 03:56 by 啊哒哒哒叨
[论文投稿] 急需审稿人!!! +3 陆小果画大饼 2026-04-21 3/150 2026-04-21 23:54 by jzy_123456
[考博] 申博/考博 +4 啃面包的小书虫 2026-04-17 8/400 2026-04-21 16:26 by 啃面包的小书虫
[考研] 085600材料与化工调剂 5+3 孜孜不倦2002 2026-04-19 6/300 2026-04-20 21:25 by babero
[论文投稿] 期刊推荐 +3 材料研究生 2026-04-15 5/250 2026-04-20 16:02 by 豆豆7758
[论文投稿] 有没有接收比较快的sci期刊呀,最好在一个月之内的,研三孩子求毕业 20+4 之护着 2026-04-16 7/350 2026-04-20 15:45 by 豆豆7758
[教师之家] 又一批高校组建人工智能学院 师资行吗 不是骗人吗 +4 yexuqing 2026-04-19 4/200 2026-04-20 14:47 by brantleo
[考博] 申博 +3 Xyyx. 2026-04-18 3/150 2026-04-20 10:44 by YuY66
[考博] 湖南大学刘巧玲课题组2026年第二批次博士研究生招生信息 +3 南风观火 2026-04-18 5/250 2026-04-20 10:13 by 南风观火
[考研] 求计算机方向调剂 +3 Toffee2 2026-04-16 6/300 2026-04-19 22:37 by ll叶
[考研] 294求调剂 +8 淡然654321 2026-04-17 9/450 2026-04-19 19:51 by Equinoxhua
[考研] 求调剂 +6 苦命人。。。 2026-04-18 7/350 2026-04-19 16:27 by 中豫男
[考研] 294求调剂 +15 淡然654321 2026-04-15 15/750 2026-04-19 08:20 by cuisz
[考研] 0854求调剂 +23 门路摸摸 2026-04-15 27/1350 2026-04-19 01:59 by 烟雨流涯
[考研] 300求调剂 +12 橙a777 2026-04-15 12/600 2026-04-18 23:51 by 路病情
[考研] 接受任何调剂 +6 也就是栗子 2026-04-17 7/350 2026-04-18 17:20 by 涵竹刘
[考研] 收到复试调剂但是去不了 +8 小蜗牛* 2026-04-16 8/400 2026-04-18 11:15 by zixin2025
[考研] 260求调剂 +4 Zyt1314520.. 2026-04-17 5/250 2026-04-18 08:28 by babysonlkd
[有机交流] 二苯甲酮酸类衍生物 50+3 小白爱主人 2026-04-17 6/300 2026-04-17 18:47 by kf2781974
[考研] 一志愿沪9,生物学326求调剂 +9 刘墨墨 2026-04-15 9/450 2026-04-16 17:14 by 崔崔崔cccc
信息提示
请填处理意见