我化学家探索催化反应高效精准之路

新冠重返排名第一！“二阳”风险有多大？一图解惑。（北京日报）","multimedia":{"img_url":["https://n.sinaimg.cn/zhibo/300/w1080h7220/20230520/2ae2-a663da197985cd72a703797928d5fedc.jpg"]},"commentid":"live:finance-152-3115379:0","compere_id":0,"creator":"yongsheng6@staff.sina.com.cn","mender":"yongsheng6@staff.sina.com.cn","create_time":"2023-05-20 09:16:06","update_time":"2023-05-20 09:16:11","is_need_check":"0","check_time":"1970-01-01 08:00:01","check_status":"1","check_user":"","is_delete":0,"top_value":0,"is_focus":0,"source_content_id":"0","anchor_image_url":"","anchor":"直播员","ext":"{"stocks":[],"needPush":false,"needAIPush":false,"needCMSLink":true,"needCalender":false,"needProvince":"u5317u4eac","docurl":"https:\/\/finance.sina.com.cn\/7x24\/2023-05-20\/doc-imyukqqe6764868.shtml","docid":"myukqqe6764868"}","old_live_cid":"0","tab":"","tag":[{"id":"8","name":"其他"}],"like_nums":0,"comment_list":{"list":[],"total":0,"thread_show":0,"qreply":0,"qreply_show":0,"show":0},"docurl":"https://finance.sina.cn/7x24/2023-05-20/detail-imyukqqe6764868.d.html","rich_text_nick_to_url":[],"rich_text_nick_to_routeUri":[],"compere_info":""},{"id":3115378,"zhibo_id":152,"type":0,"rich_text":"【我化学家探索催化反应高效精准之路】 85%的化工过程都离不开催化剂，但大多数催化反应却总面临两难的权衡——反应物的转化率高、目标产物的选择性就会降低；选择性提高，转化率就会降低，就像“跷跷板”一样。为了解决这一难题，中国科学院大连化学物理研究所的科研人员在煤经合成气直接转化这个方向上持续努力，相关成果19日在线发表于国际学术期刊《科学》上。 这一成果由中国科学院大连化学物理研究所焦峰博士、潘秀莲研究员和包信和院士的研究团队共同完成。（光明日报）