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U.S.A."],"published-print":{"date-parts":[[2022,7,19]]},"abstract":"<jats:p>\n                    Efficient\n                    <jats:italic>n<\/jats:italic>\n                    = O bond activation is crucial for the catalytic reduction of nitrogen compounds, which is highly affected by the construction of active centers. In this study,\n                    <jats:italic>n<\/jats:italic>\n                    = O bond activation was achieved by a single-atom catalyst (SAC) with phosphorus anchored on a Co active center to form intermediate\n                    <jats:italic>N<\/jats:italic>\n                    -species for further hydrogenation and reduction. Unique phosphorus-doped discontinuous active sites exhibit better\n                    <jats:italic>n<\/jats:italic>\n                    = O activation performance than conventional\n                    <jats:italic>N<\/jats:italic>\n                    -cooperated single-atom sites, with a high Faradic efficiency of 92.0% and a maximum ammonia yield rate of 433.3 \u03bcg NH4\u00b7h\n                    <jats:sup>\u22121<\/jats:sup>\n                    \u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    . This approach of constructing environmental sites through heteroatom modification significantly improves atom efficiency and will guide the design of future functional SACs with wide-ranging applications.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2123450119","type":"journal-article","created":{"date-parts":[[2022,7,12]],"date-time":"2022-07-12T14:35:24Z","timestamp":1657636524000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":130,"title":["Boosted ammonium production by single cobalt atom catalysts with high Faradic efficiencies"],"prefix":"10.1073","volume":"119","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9542-5391","authenticated-orcid":false,"given":"Jiacheng","family":"Li","sequence":"first","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5324-0708","authenticated-orcid":false,"given":"Miao","family":"Li","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ning","family":"An","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuo","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinan","family":"Song","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yilin","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Environment, Tsinghua University, Beijing 100084, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2022,7,12]]},"reference":[{"key":"e_1_3_4_1_2","unstructured":"Bulletin on China\u2019s ecological environment of 2020. 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