{"id":26053,"date":"2025-05-06T14:05:18","date_gmt":"2025-05-06T08:20:18","guid":{"rendered":"https:\/\/www.revoscience.com\/en\/?p=26053"},"modified":"2025-05-06T14:05:21","modified_gmt":"2025-05-06T08:20:21","slug":"electronic-structure-engineering-of-nickel-single-atom-catalyst-by-phosphorus-for-efficient-electrocatalytic-co2-reduction-in-a-proton-rich-microenvironment","status":"publish","type":"post","link":"https:\/\/www.revoscience.com\/en\/electronic-structure-engineering-of-nickel-single-atom-catalyst-by-phosphorus-for-efficient-electrocatalytic-co2-reduction-in-a-proton-rich-microenvironment\/","title":{"rendered":"Electronic structure engineering of nickel single-atom catalyst by phosphorus for efficient electrocatalytic CO2 reduction in a proton-rich microenvironment"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Reducing carbon dioxide (CO\u2082) concentration through electrochemical methods (eCO\u2082RR) in acidic conditions is an important strategy for producing valuable products while avoiding the formation of carbonate.\u00a0<\/p>\n\n\n\n

However, one major challenge is that in acidic media, the hydrogen evolution reaction (HER) tends to dominate because of the high availability of protons, making it harder for CO\u2082 reduction to occur efficiently. <\/p>\n\n\n\n

To address this issue, this study synthesized Ni\u2013N3<\/sub>PC catalyst using an in-situ phosphatization method to modulate the electronic structure of the catalyst to suppress the competing HER and favor the CO\u2082 reduction reaction. <\/p>\n\n\n\n

The Ni\u2013N3<\/sub>PC catalyst showed excellent performance, with over 90% selectivity for producing carbon monoxide (CO) across a wide range of potentials. It also maintained high carbon efficiency and achieved a high partial current density for CO production, reaching \u2013357.7 mA cm\u207b\u00b2. <\/p>\n\n\n\n

In long-term tests, the catalyst remained stable for 100 hours, maintaining 85% CO selectivity at \u2013100 mA cm\u207b\u00b2 without changing its structure. Further analysis using electrochemical impedance spectroscopy and turnover frequency studies of Ni\u2013N3<\/sub>PC showed that it has lower charge transfer resistance and better intrinsic activity than Ni single atom catalyst. <\/p>\n\n\n\n

The exceptional catalytic activity of Ni\u2013N3<\/sub>PC arises from several synergistic effects. First, the in-situ phosphatization process modifies the electronic structure of the catalyst, which enhances its intrinsic activity. Additionally, the catalyst possesses a large surface area that boosts CO\u2082 adsorption capacity, ensuring a higher concentration of reactants at the active sites. <\/p>\n\n\n\n

The XPS and XAS analyses confirm the presence of Ni\u2013P and Ni\u2013N bonds, while scanning transmission electron microscopy shows atomically dispersed Ni atoms on a carbon matrix. <\/p>\n\n\n\n

\u201cComputational studies supported the experimental findings, showing that the catalyst reduces the energy barrier for forming the key reaction intermediate (*COOH), thereby promoting CO generation. This research demonstrates a promising direction for designing efficient and stable catalysts for industrial CO\u2082 reduction,\u201d said Prof. Li-Chyong Chen.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Reducing carbon dioxide (CO\u2082) concentration through electrochemical methods (eCO\u2082RR) in acidic conditions is an important strategy for producing valuable products<\/p>\n","protected":false},"author":2,"featured_media":26054,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,122],"tags":[],"class_list":["post-26053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research","category-chemistry"],"featured_image_urls":{"full":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",1100,670,false],"thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-200x200.jpg",200,200,true],"medium":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-675x411.jpg",675,411,true],"medium_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-768x468.jpg",750,457,true],"large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-1024x624.jpg",750,457,true],"1536x1536":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",1100,670,false],"2048x2048":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",1100,670,false],"ultp_layout_landscape_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",1100,670,false],"ultp_layout_landscape":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-870x570.jpg",870,570,true],"ultp_layout_portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-600x670.jpg",600,670,true],"ultp_layout_square":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-600x600.jpg",600,600,true],"newspaper-x-single-post":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-760x490.jpg",760,490,true],"newspaper-x-recent-post-big":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-550x360.jpg",550,360,true],"newspaper-x-recent-post-list-image":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst-95x65.jpg",95,65,true],"web-stories-poster-portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",640,390,false],"web-stories-publisher-logo":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",96,58,false],"web-stories-thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2025\/05\/nickel-single-atom-catalyst.jpg",150,91,false]},"author_info":{"info":["RevoScience"]},"category_info":"Research<\/a> Chemistry<\/a>","tag_info":"Chemistry","comment_count":"0","_links":{"self":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/26053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/comments?post=26053"}],"version-history":[{"count":1,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/26053\/revisions"}],"predecessor-version":[{"id":26055,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/26053\/revisions\/26055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media\/26054"}],"wp:attachment":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media?parent=26053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/categories?post=26053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/tags?post=26053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}