TY - JOUR AU - Zheng, Wanzhen AU - Chen, Feng AU - Zeng, Qi AU - Li, Zhongjian AU - Yang, Bin AU - Lei, Lecheng AU - Zhang, Qinghua AU - He, Feng AU - Wu, Xi‑Lin AU - Hou, Yang PY - 2020/06/24 Y2 - 2024/03/29 TI - Correction to: A Universal Principle to Accurately Synthesize Atomically Dispersed Metal–N4 Sites for CO2 Electroreduction JF - Nano-Micro Letters JA - Nano-Micro Lett VL - 12 IS - SE - Articles DO - 10.1007/s40820-020-00463-9 UR - https://nmlett.org/index.php/nml/article/view/60 SP - 134 AB - <p>Atomically dispersed metal–nitrogen sites-anchored carbon materials have been developed as effective catalysts for CO<sub>2</sub> electroreduction (CO<sub>2</sub>ER), but they still suffer from the imprecisely control of type and coordination number of N atoms bonded with central metal. Herein, we develop a family of single metal atom bonded by N atoms anchored on carbons (SAs–M–N–C, M = Fe, Co, Ni, Cu) for CO<sub>2</sub>ER, which composed of accurate pyrrole-type M–N<sub>4</sub> structures with isolated metal atom coordinated by four pyrrolic N atoms. Benefitting from atomically coordinated environment and specific selectivity of M–N<sub>4</sub> centers, SAs–Ni–N–C exhibits superior CO<sub>2</sub>ER performance with onset potential of − 0.3&nbsp;V, CO Faradaic efficiency (F.E.) of 98.5% at − 0.7&nbsp;V, along with low Tafel slope of 115&nbsp;mV&nbsp;dec<sup>−1</sup> and superior stability of 50&nbsp;h, exceeding all the previously reported M–N–C electrocatalysts for CO<sub>2</sub>-to-CO conversion. Experimental results manifest that the different intrinsic activities of M–N<sub>4</sub> structures in SAs–M–N–C result in the corresponding sequence of Ni &gt; Fe &gt; Cu &gt; Co for CO<sub>2</sub>ER performance. An integrated Zn–CO<sub>2</sub> battery with Zn foil and SAs–Ni–N–C is constructed to simultaneously achieve CO<sub>2</sub>-to-CO conversion and electric energy output, which delivers a peak power density of 1.4&nbsp;mW&nbsp;cm<sup>−2</sup> and maximum CO F.E. of 93.3%.</p><p>Highlights:</p><p>1 A family of SAs–M–N–C consisted of carbon nanosheets supported atomic sites of isolated metal atom coordinated with four pyrrolic N atoms was fabricated.<br>2 The SAs–Ni–N–C exhibited superior electrochemical CO<sub>2</sub> electroreduction (CO<sub>2</sub>ER) activity and selectivity.</p> ER -