文献类型：期刊文献

英文题名：Nix/Ery nanoparticles anchored on biomass-derived N-doped carbon matrix for electrocatalytic CO2 to produce tunable syngas at high current density

作者：Shi, Gaojie;Yan, Bochao[1];Zhang, Suping[1]

机构：[1]East China Univ Sci & Technol, Engn Res Ctr Resource Utilizat Carbon Containing W, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, State Key Lab Coal Liquificat Gasificat & Utilizat, 130 Meilong Rd, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Biomass Energy & Mat Res Ctr, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2027

卷号：428

外文期刊名：FUEL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001793293300001)】；

基金：This work was supported financially by the National Key R & D Pro-gram of China (2024YFB4206204) .

语种：英文

外文关键词：Biomass-derived electrocatalyst; CO2 electroreduction; Dual nanoparticle sites; Tunable syngas ratio; Wide current density range

摘要：Electrochemical reduction of CO2 (eCO(2)RR) to syngas is an attractive route to reach carbon neutrality and ensure energy security. However, the production of tunable syngas is hard to realize at high current density due to the contradiction between precise design and high loading of active sites. Herein, a series of dual-site catalysts with Ni/Er nanoparticles (NPs) anchored on biomass-derived N-doped carbon matrix have been developed. The interaction between biomass carrier and metal ions, as well as the introduction of Er3+, realize the construction of active sites with high intrinsic activity and high dispersion. By altering the addition of metal amount, H-2/CO ratio of syngas can be adjusted from 0.05 to 5.13 at the current density of 400 mA cm(-2) and the ratio can be maintained relatively stable in a wide current range. Theoretic analysis confirmed the influence of different metal nanoparticles to the carbon matrix and recognized that Ni NPs have higher catalytic activity for eCO(2)RR, while HER is more likely to occur on Er NPs site. This study provides a new idea for the fabrication of green electrocatalyst to produce tunable syngas through eCO(2)RR.