{"id":57317,"date":"2020-08-31T17:19:00","date_gmt":"2020-08-31T14:19:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/manganese-single-atom-catalyst-boosts-performance-of-electrochemical-carbon-dioxide-reduction\/"},"modified":"2020-08-31T17:19:00","modified_gmt":"2020-08-31T14:19:00","slug":"manganese-single-atom-catalyst-boosts-performance-of-electrochemical-carbon-dioxide-reduction","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/manganese-single-atom-catalyst-boosts-performance-of-electrochemical-carbon-dioxide-reduction\/","title":{"rendered":"#Manganese single-atom catalyst boosts performance of electrochemical carbon dioxide reduction"},"content":{"rendered":"

“#Manga<\/a>nese single-atom catalyst boosts performance of electrochemical carbon dioxide reduction<\/strong>”<\/p>\n

\n
\n
2<\/sub> reduction. Credit: FENG jiaqi” data-thumb=”https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2020\/manganesesin.jpg”><\/p>\n
\"Manganese2<\/sub> reduction. Credit: FENG jiaqi” width=”800″><\/img>
\n Schematic diagram of Mn SAC preparation and mechanism of electrochemical CO2<\/sub> reduction. Credit: FENG jiaqi
\n <\/figcaption><\/figure>\n<\/div>\n<\/div>\n

Electrochemical CO2<\/sub> reduction reaction (CO2<\/sub>RR) is a promising approach to convert CO2<\/sub> into useful chemicals.<\/p>\n

\n <\/section>\n

A research team led by Prof. Zhang Suojiang from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences prepared a manganese (Mn) single-atom catalyst (SAC) with Mn-N3<\/sub> site supported by graphitic C3<\/sub>N4<\/sub>, which exhibited efficient performance of CO2<\/sub> electroreduction.<\/p>\n

This work was published in Nature Communications<\/i> on August 28.
\nIt is a great challenge to obtain high Faradaic efficiency (FE) and high current density simultaneously by cheap catalysts for CO2<\/sub>RR.
\nThe prepared catalyst exhibited a maximum CO FE of 98.8% with 14.0 mA cm-2<\/sup> CO current density (j<\/i>CO<\/sub>) at overpotential of 0.44 V in KHCO3<\/sub> electrolyte, outperforming all reported Mn SACs.
\nMoreover, a higher j<\/i>CO<\/sub> value of 29.7 mA cm-2<\/sup> was obtained at overpotential of 0.62 V, when ionic liquid was used as electrolyte.
\nX-ray absorption spectroscopy and high-angle annular dark-field scanning transmission electron microscopy confirmed atomically dispersed Mn in the catalyst, and the best-fitting analysis indicated that the isolated Mn atom was three-fold coordinated by N atoms.
\n“In situ X-ray absorption spectra and density functional theory calculations demonstrated that the remarkable performance of the catalyst was attributed to the Mn-N3<\/sub> site, which facilitated the formation of the key intermediate COOH through a lowered free energy barrier,” said Prof. Zhang Suojiang.
\nThis work shows that the CO2<\/sub>RR activity of Mn-based catalysts can be enhanced through changing coordinated environment.
\n“It provides an important scientific basis and feasibility for low cost and high efficient electrochemical CO2<\/sub> reduction to useful chemicals,” said Prof. Zhang Xiangping, a co-corresponding author of the paper.<\/p>\n

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More information:<\/strong>
\n Jiaqi Feng et al, A Mn-N3 single-atom catalyst embedded in graphitic carbon nitride for efficient CO2<\/sub> electroreduction, Nature Communications<\/i> (2020). DOI: 10.1038\/s41467-020-18143-y\n <\/div>\n

\n Citation<\/strong>:
\n Manganese single-atom catalyst boosts performance of electrochemical carbon dioxide reduction (2020, August 31)
\n retrieved 31 August 2020
\n from https:\/\/phys.org\/news\/2020-08-manganese-single-atom-catalyst-boosts-electrochemical.html<\/p>\n

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“#Manganese single-atom catalyst boosts performance of electrochemical carbon dioxide reduction” Schematic diagram of Mn SAC preparation and mechanism of electrochemical CO2 reduction. Credit: FENG jiaqi Electrochemical CO2 reduction reaction (CO2RR) is a promising approach to convert CO2 into useful chemicals. A research team led by Prof. Zhang Suojiang from the Institute of Process Engineering (IPE)…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[61658,10601],"class_list":["post-57317","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-manganese-single-atom-catalyst-boosts-performance-of-electrochemical-carbon-dioxide-reduction","tag-materials-science"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/57317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=57317"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/57317\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=57317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=57317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=57317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}