彩神注册官方Chinese scientists develop new catalyst for hydrogen fuel cells

  • 时间:
  • 浏览:0
  • 来源:彩神APP下载_彩神官方APP下载安卓版

HEFEI, Feb. 1 (Xinhua) -- Chinese scientists announced that they have successfully addressed a key problem impeding the promotion of hydrogen vehicles by developing a new catalyst system for fuel cells.

A research team led by Lu Junling, Wei Shiqiang and Yang Jinlong at the University of Science and Technology of China (USTC), has developed a new catalyst for fuel cells, which could prolong battery life and greatly extend the range of proper temperature for cells to work.

"These findings might greatly accelerate the advent of the era of hydrogen-powered vehicles," Lu said.

According to Lu, a major problem with improving the catalyst system of the fuel cell is catalyst poisoning by impure gases such as carbon monoxide (CO). Under the current production methods, 0.5 to 2 percent of hydrogen is CO, which often poisons the platinum electrode and thus cuts the life of fuel cells.

Currently, a preferred solution is on-board hydrogen purification, which involves preferential oxidation of CO in hydrogen (PROX). However, this approach is flawed since the catalyst can only work within a narrow temperature range above room temperature.

Atomically dispersed on silica-supported platinum nano-particles, the new catalyst of iron hydroxide enables complete and 50 percent selective CO removal through the PROX reaction over a broad temperature range of minus 75 degrees Celsius to 150 degrees Celsius.

Lu said the final aim of the team is to develop an affordable and efficient catalyst that offers full-time protection to fuel cells and be used for production of pure hydrogen in factories.

The study results were published in the renowned scientific journal Nature on Thursday.

猜你喜欢

多项升级 2019款凯翼X5将于7月29日上市

日前亲戚亲戚大伙儿儿从官方获悉,2019款凯翼X5(参数|询价)将于7月29日正式上市。新车将针对内饰、配置等进行24项升级,换装满足国六排放标准的动力总成。『配图为2017款

2019-08-17

【五分快三单双大小】5G牌照刚发 除了华为这家神秘公司也火了|广电|牌照|华为

原标题五分快三单双大小:5G牌照刚发,除了五分快三单双大小华为,这家神秘公司也火了来源:长安街知事 备受瞩目的5G牌照终于来了!6日上午,工信部正式向中国电信、中国移动、中国联

2019-08-17

【1分快3计划下载 免费】特朗普赴奥兰多参加政治集会 正式宣布将竞选连任

知道了 特朗普赴奥兰多参加政治集会正式否认将竞选连任 http://n.1分快3计划下载免费s1分快3计划下载免费inaimg.cn/news/1_img/dfic/c1分快

2019-08-17

安徽快3组合走势图2018年全疆二手车交易38.4万辆

天山网讯(记者于江艳报道)新疆二手车市场持续健康发展,市场活跃。据新疆二手车流通行业学好不完正统计,去年新疆二手车交易达38.4万辆,交易额达246.24亿

2019-08-17

大发快三-5分快3-3分快3佳木斯法院受理一审黑恶势力案22件107人

东北网3月29日讯(陈建记者佘雨桐)29日,佳木斯市中级人民法院召开全市法院扫黑除恶专项斗争进展情况汇报新闻发布会。记者获悉,截至目前,佳木斯市法院受理一审黑恶势力犯罪及保

2019-08-17