Research progress on electrocatalytic CO<sub>2</sub> reduction over carbon-based single-atom catalysts

ZHANG Yi-yan; CHEN Xi-yuan; DONG Ling-yu; HE Lei; HAO Guang-ping; LI Wen-cui

doi:10.19906/j.cnki.JFCT.2023047

Volume 51 Issue 11

Nov. 2023

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Article Navigation > Journal of Fuel Chemistry and Technology > 2023 > 51(11): 1617-1632

ZHANG Yi-yan, CHEN Xi-yuan, DONG Ling-yu, HE Lei, HAO Guang-ping, LI Wen-cui. Research progress on electrocatalytic CO2 reduction over carbon-based single-atom catalysts[J]. Journal of Fuel Chemistry and Technology, 2023, 51(11): 1617-1632. doi: 10.19906/j.cnki.JFCT.2023047

Citation:

ZHANG Yi-yan, CHEN Xi-yuan, DONG Ling-yu, HE Lei, HAO Guang-ping, LI Wen-cui. Research progress on electrocatalytic CO₂ reduction over carbon-based single-atom catalysts[J]. Journal of Fuel Chemistry and Technology, 2023, 51(11): 1617-1632. doi: 10.19906/j.cnki.JFCT.2023047

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Research progress on electrocatalytic CO₂ reduction over carbon-based single-atom catalysts

doi: 10.19906/j.cnki.JFCT.2023047

Dalian University of Technology, Dalian 116024, China

Funds: The project was supported by the National Key R&D Program of China (2021YFA1500300), National Natural Science Foundation of China (U1908203), and Fundamental Research Funds for the Central Universities (DUT22LAB607, DUT22QN206).

Received Date: 2023-04-10
Accepted Date: 2023-05-12
Rev Recd Date: 2023-05-11
Publish Date: 2023-11-13

Abstract

Abstract

Electrocatalytic CO₂ reduction (Electrocatalytic CO₂ Reduction, ECR) can realize the storage and utilization of renewable energy and convert CO₂ into high-value chemicals. It is an important way of energy utilization under the background of "carbon peaking and carbon neutrality goals", with significant economic and environmental benefits. High efficiency catalyst is the core of ECR process. Single-atom catalysts are ideal for ECR because of the theoretical 100% utilization of active components. Carbon materials have the advantages of high surface area and excellent conductivity, which is quite suitable for electrocatalysis. Herein, by classifying according to the different interaction between the single atomic active center and the carbon support, we reviewed the preparation, structure, properties and action mechanism of single-atom catalysts supported on representative carbon materials in the past decade. We hope it would provide inspirations and ideas for the future investigations.
- single-atom-catalyst,
- electrocatalysis,
- carbon dioxide reduction,
- carbon support

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References(76)

References

[1]	LIU Z, DENG Z, DAVIS S, GIRON C, CIAIS P. Monitoring global carbon emissions in 2021[J]. Nat Rev Earth Environ,2022,3:217−219.
[2]	胡鞍钢. 中国实现2030年前碳达峰目标及主要途径[J]. 北京工业大学学报(社会科学版),2021,21(3):1−15. HU An-gang. China's goal of achieving carbon peak by 2030 and its main approaches[J]. J Beijing Univ Technol(Soc Sci Ed),2021,21(3):1−15.
[3]	邹才能, 何东博, 贾成业, 熊波, 赵群, 潘松圻. 世界能源转型内涵、路径及其对碳中和的意义[J]. 石油学报,2021,42(2):233−247. ZOU Cai-neng, HE Dong-bo, JIA Cheng-ye, XIONG Bo, ZHAO Qun, PAN Song-qi. Connotation and pathway of world energy transition and its significance for carbon neutral[J]. Acta Pet Sin,2021,42(2):233−247.
[4]	周柒, 丁红蕾, 郭得通, 潘卫国, 杜威. CO₂催化氢化制清洁能源的研究进展及趋势[J]. 化工学报,2020,71(8):3428−3443. ZHOU Qi, DING Hong-lei, GUO De-tong, PAN Wei-guo, DU Wei. Recent advances in catalytic methods of CO₂ hydrogenation to clean energy[J]. CIESC J,2020,71(8):3428−3443.
[5]	ZHOU W, GUO J, SHEN S, PAN J, TANG J, CHEN L, AU C, YIN Shuang-feng. Progress in potoelectrocatalytic reduction of carbon dioxide[J]. Acta Phys-Chim Sin,2020,36(3):1906048. doi: 10.3866/PKU.WHXB201906048
[6]	任静, 谭玲, 赵宇飞, 宋宇飞. 超薄二维材料光/电催化CO₂还原的最新进展[J]. 化工学报,2021,72(1):398−424. REN Jing, TAN Ling, ZHAO Yu-fei, SONG Yu-fei. Latest development of ultrathin two-dimensional materials for photocatalytic and electrocatalytic CO₂ reduction[J]. CIESC J,2021,72(1):398−424.
[7]	YANG Y, ZHANG Y, HU J, WAN L. Progress in the mechanisms and materials for CO₂ electroreduction toward C₂₊ products[J]. Acta Phys-Chim Sin,2020,36(1):1906085. doi: 10.3866/PKU.WHXB201906085
[8]	NITOPI S, BERTHEUSSEN E, SCOTT S B, LIU X, ENGSTFELD A K, HORCH S, SEGER B, STEPHENS I E L, CHAN K, HAHN C, NØRSKOV J K, JARAMILLO T F, CHORKENDORFF I. Progress and perspectives of electrochemical CO₂ reduction on copper in aqueous electrolyte[J]. Chem Rev,2019,119(12):7610−7672. doi: 10.1021/acs.chemrev.8b00705
[9]	QIAO B, WANG A, YANG X, ALLARD L F, JIANG Z, CUI Y, LIU J, LI J, ZHANG T. Single-atom catalysis of CO oxidation using Pt1/FeO_x[J]. Nat Chem,2011,3(8):634−641. doi: 10.1038/nchem.1095
[10]	CHEN F, JIANG X, ZHANG L, LANG R, QIAO B. Single-atom catalysis: Bridging the homo-and heterogeneous catalysis[J]. Chin J Catal,2018,39:893−898. doi: 10.1016/S1872-2067(18)63047-5
[11]	崔新江, 石峰. 基于单原子催化剂的二氧化碳选择性转化[J]. 物理化学学报,2021,37(5):56−80. CUI Xin-jiang, SHI Feng. Selective conversion of CO₂ by single-site catalysts[J]. Acta Phys-Chim Sin,2021,37(5):56−80.
[12]	LI J, ZHANG L, DOYLE DAVIS K, LI R, SUN X. Recent advances and strategies in the stabilization of single-atom catalysts for electrochemical applications[J]. Carbon Energy,2020,2(4):488−520. doi: 10.1002/cey2.74
[13]	CHEN Y, JI S, CHEN C, PENG Q, WANG D, LI Y. Single-atom catalysts: Synthetic strategies and electrochemical applications[J]. Joule,2018,2(7):1242−1264. doi: 10.1016/j.joule.2018.06.019
[14]	OU H, WANG D, LI Y. How to select effective electrocatalysts: Nano or single atom?[J]. Nano Sel,2021,2(3):492−511. doi: 10.1002/nano.202000239
[15]	WU W, LEI W, WANG L, WANG S, ZHANG H. Preparation of single atom catalysts[J]. Prog Chem,2020,32(1):23−32.
[16]	ABBET S, SANCHEZ A, HEIZ U, SCHNEIDER W D, FERRARI A M, PACCHIONI G, RÖSCH N. Acetylene cyclotrimerization on supported size-selected Pd_n clusters (1≤n≤30): one atom is enough![J]. J Am Chem Soc,2000,122(14):3453−3457. doi: 10.1021/ja9922476
[17]	HE X, DENG Y, ZHANG Y, HE Q, XIAO D, PENG M, ZHAO Y, ZHANG H, LUO R, GAN T, JI H, MA D. Mechanochemical kilogram-scale synthesis of noble metal single-atom catalysts[J]. Cell Rep Phys Sci,2020,1(1):100004. doi: 10.1016/j.xcrp.2019.100004
[18]	ZHANG M, LI X, YANG Y, LI T, LUO H, WEN L, QIN L. Multilayer self-assemblies for fabricating graphene-supported single-atomic metal via microwave-assisted emulsion micelle[J]. Small,2022,18(24):2201291. doi: 10.1002/smll.202201291
[19]	HE Q, LIU D, LEE J H, LIU Y, XIE Z, HWANG S, KATTEL S, SONG L, CHEN J G. Electrochemical conversion of CO₂ to syngas with controllable CO/H₂ ratios over Co and Ni single-atom catalysts[J]. Angew Chem Int Ed,2020,59(8):3033−3037. doi: 10.1002/anie.201912719
[20]	竹涛, 韩一伟, 刘帅, 谢蔚, 苑博, 宋慧平, 程芳琴. 单原子位点催化剂及其电催化应用研究进展[J]. 化工进展,2022,41(2):666−681. ZHU Tao, HAN Yi-wei, LIU Shuai, XIE Wei, YUAN Bo, SONG Hui-ping, CHENG Fang-qin. Progress in electrocatalysis by single-atom site catalysts[J]. Prog Chem,2022,41(2):666−681.
[21]	WANG J, LI Z, WU Y, LI Y. Fabrication of single-atom catalysts with precise structure and high metal loading[J]. Adv Mater,2018,30(48):1801649. doi: 10.1002/adma.201801649
[22]	尹培群. 镍钴基电催化剂的制备及氧电极催化性能研究[D]. 合肥: 中国科学技术大学, 2017. YIN Pei-qun. Synthesis of Ni and Co-based electrocatalysts for oxygen electrodes[D]. Hefei: University of Science and Technology of China, 2017.
[23]	ASOKAN C, DERITA L, CHRISTOPHER P. Using probe molecule FTIR spectroscopy to identify and characterize Pt-group metal based single atom catalysts[J]. Chin J Catal,2017,38(9):1473−1480. doi: 10.1016/S1872-2067(17)62882-1
[24]	YE S, LUO F, ZHANG Q, ZHANG P, XU T, WANG Q, HE D, GUO L, ZHANG Y, HE C, OUYANG X, GU M, LIU J, SUN X. Highly stable single Pt atomic sites anchored on aniline-stacked graphene for hydrogen evolution reaction[J]. Energy Environ Sci,2019,12(3):1000−1007.
[25]	彭小明, 吴健群, 戴红玲, 杨展宏, 许莉, 许高平, 胡锋平. Ni-N-C单原子催化剂活化过硫酸盐降解苯酚[J]. 高等学校化学学报,2021,42(8):2581−2591. PENG Xiao-ming, WU Jian-qun, DAI Hong-ling, YANG Zhan-hong, XU Li, XU Gao-ping, HU Feng-ping. Activation of peroxymonosulfate by single atom catalysts Ni-N-C for high efficiency degradation of phenol[J]. Chem Res Chin Univ,2021,42(8):2581−2591.
[26]	GUO Y, MEI S, YUAN K, WANG D, LIU H, YAN C, ZHANG Y. Low-temperature CO₂ methanation over CeO₂-supported Ru single atoms, nanoclusters, and nanoparticles competitively tuned by strong metal-support interactions and H-spillover effect[J]. ACS Catal,2018,8(7):6203−6215. doi: 10.1021/acscatal.7b04469
[27]	LI J, CHEN M, CULLEN D A, HWANG S, WANG M, LI B, LIU K, KARAKALOS S, LUCERO M, ZHANG H, LEI C, XU H, STERBINSKY G E, FENG Z, SU D, MORE K L, WANG G, WANG Z, WU G. Atomically dispersed manganese catalysts for oxygen reduction in proton-exchange membrane fuel cells[J]. Nat Catal,2018,1(12):935−945. doi: 10.1038/s41929-018-0164-8
[28]	ZHANG H, HWANG S, WANG M, FENG Z, KARAKALOS S, LUO L, QIAO Z, XIE X, WANG C, SU D, SHAO Y, WU G. Single atomic iron catalysts for oxygen reduction in acidic media: particle size control and thermal activation[J]. J Am Chem Soc,2017,139(40):14143−14149. doi: 10.1021/jacs.7b06514
[29]	王成雄, 冯丰, 潘再富, 杨冬霞, 常仕英, 赵云昆. 铂族金属单原子催化剂的制备、表征技术研究进展[J]. 贵金属,2019,40(1):88−97. WANG Cheng-xiong, FENG Feng, PAN Zai-fu, YANG Dong-xia, CHANG Shi-ying, ZHAO Yun-kun. Research progress in preparation and characterization techniques of Pt-group metal based single-atom catalysts[J]. Precious Met,2019,40(1):88−97.
[30]	靳永勇, 郝盼盼, 任军, 李忠. 单原子催化——概念、方法与应用[J]. 化学进展, 2015, 27(12): 1689-1704. JIN Yong-yong, HAO Pan-pan, REN Jun, LI Zhong. Single atom catalysis: Concept, method and application[J]. Prog Chem, 2015, 27(12): 1689-1704.
[31]	GONG L, ZHANG D, LIN C Y, ZHU Y, SHEN Y, ZHANG J, HAN X, ZHANG L, XIA Z. Catalytic mechanisms and design principles for single-atom catalysts in highly efficient CO₂ conversion[J]. Adv Energy Mater,2019,9(44):1902625. doi: 10.1002/aenm.201902625
[32]	LIU S, YANG H B, HUNG S F, DING J, CAI W, LIU L, GAO J, LI X, REN X, KUANG Z, HUANG Y, ZHANG T, LIU B. Elucidating the electrocatalytic CO₂ reduction reaction over a model single-atom nickel catalyst[J]. Angew Chem Int Ed,2020,59(2):798−803. doi: 10.1002/anie.201911995
[33]	ZHAO D, YU K, SONG P, FENG W, HU B, CHEONG W M, ZHUANG Z, LIU S, SUN K, ZHANG J, CHEN C. Atomic-level engineering Fe₁N₂O₂ interfacial structure derived from oxygen-abundant metal–organic frameworks to promote electrochemical CO₂ reduction[J]. Energy Environ Sci,2022,15(9):3795−3804.
[34]	ZHANG Z, ZHU Y, ASAKURA H, ZHANG B, ZHANG J, ZHOU M, HAN Y, TANAKA T, WANG A, ZHANG T, YAN N. Thermally stable single atom Pt/m-Al₂O₃ for selective hydrogenation and CO oxidation[J]. Nat Commun,2017,8(1):16100. doi: 10.1038/ncomms16100
[35]	LI J, STEPHANOPOULOS M F, XIA Y. Introduction: Heterogeneous single-atom catalysis[J]. Chem Rev,2020,120(21):11699−11702. doi: 10.1021/acs.chemrev.0c01097
[36]	张凤翔. 碳基二维材料的电磁学及动力学性质研究[D]. 济南: 齐鲁工业大学, 2022. ZHANG Feng-xiang. Study of electro-magnetic and kinetic properties for carbon-based two-dimensional materials[D]. Jinan: Qilu University of Technology, 2022.
[37]	李晓怡. 碳基铜单原子催化剂的制备及其催化性能研究[D]. 广州: 广东工业大学, 2022. Li Xiao-yi. Preparation and catalytic properties of carbon-based copper single-atom catalysts[D]. Guangzhou:Guangdong University of Technology, 2022.
[38]	朱成玉, 叶幼文, 郭霞, 程菲. 不同维度碳基纳米材料的设计与合成及其在电化学储能中的应用[J]. 新型炭材料,2022,37(1):59−92. doi: 10.1016/S1872-5805(22)60579-1 ZHU Cheng-yu, YE You-wen, GUO Xia, CHENG Fei. Design and synthesis of carbon-based nanomaterials for electrochemical energy storage[J]. New Res Carbon Mater,2022,37(1):59−92. doi: 10.1016/S1872-5805(22)60579-1
[39]	贺雷, 张向倩, 陆安慧. 二维炭基多孔材料的合成及应用[J]. 物理化学学报,2017,33(4):709−728. doi: 10.3866/PKU.WHXB201612201 HE Lei, ZHANG Xiang-qian, LU An-hui. Two-dimensional carbon-based porous materials: Synthesis and applications[J]. Acta Phys-Chim Sin,2017,33(4):709−728. doi: 10.3866/PKU.WHXB201612201
[40]	吴诗德, 易峰, 平丹, 张逸飞, 郝健, 刘国际, 方少明. NH₄Cl辅助热解制备镍-氮-碳纳米管催化剂及其电还原CO₂性能[J]. 化工学报,2022,73(10):4484−4497. WU Shi-de, YI Feng, PING Dan, ZHANG Yi-Fei, HAO Jian, LIU Guo-Ji, FANG Shao-Ming. NH₄Cl assisted preparation of Ni-N-CNTs catalyst and its performance for electrochemical CO₂ reduction[J]. CIESC J,2022,73(10):4484−4497.
[41]	PAN F, ZHAO H, DENG W, FENG X, LI Y. A novel N, Fe-Decorated carbon nanotube/carbon nanosheet architecture for efficient CO₂ reduction[J]. Electrochim. Acta,2018,273:154−161. doi: 10.1016/j.electacta.2018.04.047
[42]	WU S, LV X, PING D, ZHANG G, WANG S, WANG H, YANG X, GUO D, FANG S. Highly exposed atomic Fe-N active sites within carbon nanorods towards electrocatalytic reduction of CO₂ to CO[J]. Electrochim Acta,2020,340:135930. doi: 10.1016/j.electacta.2020.135930
[43]	赵润瑶, 纪桂鹏, 刘志敏. 吡咯氮配位单原子铜催化剂的电催化二氧化碳还原性能[J]. 高等学校化学学报, 2022, 43(7): 189−195. ZHAO Run-yao, JI Gui-peng, LIU Zhi-min. Efficient electrocatalytic CO₂ reduction over pyrrole nitrogen-coordinated single-atom copper catalysts[J]. Chem Res Chin Univ, 2022, 43(7): 189−195.
[44]	ZHANG H, WANG H, JIA S, CHANG Q, LI N, LI Y, SHI X, LI Z, HU S. CoN₄ active sites in a graphene matrix for the highly efficient electrocatalysis of CO₂ reduction[J]. New Carbon Mater,2022,37(4):734−742. doi: 10.1016/S1872-5805(21)60061-6
[45]	刘灵惠. 单原子催化剂的制备、表征及电催化性能研究[D]. 重庆: 重庆大学, 2021. LIU Ling-hui. Preparation, Characterization and electro-catalytic properties of single-atom catalysts[D]. Chongqing: Chongqing University, 2021.
[46]	PAN F, LI B, SARNELLO E, FEI Y, FENG X, GANG Y, XIANG X, FANG L, LI T, HU Y H, WANG G, LI Y. Pore-edge tailoring of single-atom iron-nitrogen sites on graphene for enhanced CO₂ reduction[J]. ACS Catal,2020,10(19):10803−10811. doi: 10.1021/acscatal.0c02499
[47]	ZU X, LI X, LIU W, SUN Y, XU J, YAO T, YAN W, GAO S, WANG C, WEI S, XIE Y. Efficient and robust carbon dioxide electroreduction enabled by atomically dispersed Sn^δ+ sites[J]. Adv Mater,2019,31(15):1808135. doi: 10.1002/adma.201808135
[48]	杜亚东. 碳基CO₂电还原催化剂的设计构筑及其性能研究[D]. 北京: 北京化工大学, 2021. DU Ya-dong. Theoretical study on modified carbon-based single atom catalysts for electrocatalytic carbon dioxide reduction[D]. Beijing: Beijing University of Chemical Technology, 2021.
[49]	ZHANG H, LI J, XI S, DU Y, HAI X, WANG J, XU H, WU G, ZHANG J, LU J, WANG J. A graphene-supported single-atom FeN₅ catalytic site for efficient electrochemical CO₂ reduction[J]. Angew Chem Int Ed,2019,131(42):15013−15018.
[50]	GUO C, LI Y, XU Y, XIANG Q, SUN L, ZHANG W, LI W, SI Y, LUO Z. A highly nanoporous nitrogen-doped carbon microfiber derived from bioresource as a new kind of ORR electrocatalyst[J]. Nanoscale Res Lett, 2019, 14(1).
[51]	吴晓雪, 齐妍妍, 王盈懿, 王丽, 涂高美, 傅仰河, 陈德利, 朱伟东, 张富民. 钒氮共掺杂多孔碳催化剂上苄胺氧化偶联合成亚胺[J]. 无机化学学报,2022,38(6):1049−1058. WU Xiao-xue, QI Yan-yan, WANG Ying-yi, WANG Li, TU Gao-mei, FU Yang-he, CHEN De-li , ZHU Wei-dong, ZHANG Fu-min. Synthesis of amines by oxidative coupling of benzylamine over a vanadium-nitrogen Co-doped porous carbon catalyst[J]. Chin J Inorg Chem,2022,38(6):1049−1058.
[52]	HUANG K, ZHANG W, LI J, FAN Y, YANG B, RONG C, QI J, CHEN W, YANG J. In situ anchoring of zeolite imidazole framework-derived Co, N-doped porous carbon on multiwalled carbon nanotubes toward efficient electrocatalytic oxygen reduction[J]. ACS Sustainable Chem Eng,2020,8(1):478−485.
[53]	BISEN O Y, NANDAN R, YADAV A K, PAVITHRA B, KAR NANDA K. In situ self-organization of uniformly dispersed Co-N-C centers at moderate temperature without a sacrificial subsidiary metal[J]. Green Chem,2021,23(8):3115−3126.
[54]	HU X, DONG L, REN Y, LI W, OSCHATZ M, HAO G, LU A. Surface polarity induced simultaneous enhancement of nanopore accessibility and metal utilization in metal and nitrogen Co-doped carbon electrocatalysts for CO₂ reduction[J]. ACS Appl Nano Mater, 2023, 6(11): 9495−9505.
[55]	VARELA A S, RANJBAR SAHRAIE N, STEINBERG J, JU W, OH H, STRASSER P. Metal-doped nitrogenated carbon as an efficient catalyst for direct CO₂ electroreduction to CO and hydrocarbons[J]. Angew Chem Int Ed,2015,127(37):10908−10912.
[56]	朱红林, 李文英, 黎挺挺, MICHAEL BAITINGER, JURI GRIN, 郑岳青. CO₂电还原用氮掺杂碳基过渡金属单原子催化剂[J]. 化学进展,2019,31(7):939−953. ZHU Hong-lin, LI Wen-ying, LI Ting-ting, BAITINGER M, GRIN J, ZHENG Yue-qing. N-doped porous carbon supported transition metal single atomic catalysts for CO₂ electroreduction reaction[J]. Prog Chem,2019,31(7):939−953.
[57]	HU X, HVAL H H, BJERGLUND E T, DALGAARD K J, MADSEN M R, POHL M, WELTER E, LAMAGNI P, BUHL K B, BREMHOLM M, BELLER M, PEDERSEN S U, SKRYDSTRUP T, DAASBJERG K. Selective CO₂ reduction to CO in water using earth-abundant metal and nitrogen-doped carbon electrocatalysts[J]. ACS Catal,2018,8(7):6255−6264. doi: 10.1021/acscatal.8b01022
[58]	YE L, YING Y, SUN D, ZHANG Z, FEI L, WEN Z, QIAO J, HUANG H. Highly efficient porous carbon electrocatalyst with controllable N-Species content for selective CO₂ reduction[J]. Angew Chem Int Ed,2020,132(8):3270−3277.
[59]	MÖLLER T, JU W, BAGGER A, WANG X, LUO F, NGO THANH T, VARELA A S, ROSSMEISL J, STRASSER P. Efficient CO₂ to CO electrolysis on solid Ni-N-C catalysts at industrial current densities[J]. Energy Environ Sci,2019,12(2):640−647.
[60]	ZHAO K, NIE X, WANG H, CHEN S, QUAN X, YU H, CHOI W, ZHANG G, KIM B, CHEN J G. Selective electroreduction of CO₂ to acetone by single copper atoms anchored on N-doped porous carbon[J]. Nat Commun, 2020, 11(1): 2455.
[61]	冯丽芳. 单原子催化位点调控及其电催化还原CO₂性能研究[D]. 南昌: 南昌航空大学, 2021. FENG Li-fang. Study on the adjusting of single atom site and its electrocatalytic CO₂ reduction activity[D]. Nanchang: Nanchang Hangkong University, 2021.
[62]	CHEN C, SUN X, YAN X, WU Y, LIU H, ZHU Q, BEDIAKO B B A, HAN B. Boosting CO₂ electroreduction on N,P-Co-doped carbon aerogels[J]. Angew Chem Int Ed,2020,59(27):11123−11129. doi: 10.1002/anie.202004226
[63]	甘礼华, 李光明, 朱大章, 岳天仪, 陈龙武. 碳气凝胶的制备研究[J]. 高等学校化学学报,2000,21(6):955−957. GAN Li-hua, LI Guang-ming, ZHU Da-zhang, YUE Tian-yi, CHEN Long-wei. Studies on preparation of carbon aerogels[J]. Chem Res Chin Univ,2000,21(6):955−957.
[64]	LI H, EDDAOUDI M, O'KEEFFE M, YAGHI O M. Design and synthesis of an exceptionally stable and highly porous metal-organic framework[J]. Nature,1999,402(6759):276−279. doi: 10.1038/46248
[65]	GONG Y N, JIAO L, QIAN Y, PAN C Y, ZHENG L, CAI X, LIU B, YU S H, JIANG H L. Regulating the coordination environment of MOF-templated single-atom nickel electrocatalysts for boosting CO₂ reduction[J]. Angew Chem Int Ed,2020,132(7):2727−2731.
[66]	SHANG H, WANG T, PEI J, JIANG Z, ZHOU D, WANG Y, LI H, DONG J, ZHUANG Z, CHEN W, WANG D, ZHANG J, LI Y. Design of a single-atom indium^δ+-N₄ interface for efficient electroreduction of CO₂ to formate[J]. Angew Chem Int Ed,2020,59(50):22465−22469. doi: 10.1002/anie.202010903
[67]	NAGUIB M, MOCHALIN V N, BARSOUM M W, GOGOTSI Y. 25th anniversary article: MXenes: a new family of two-dimensional materials[J]. Adv Mater,2014,26(7):992−1005. doi: 10.1002/adma.201304138
[68]	ZHANG X, LEI J, WU D, ZHAO X, JING Y, ZHOU Z. A Ti-anchored Ti₂ CO₂ monolayer (MXene) as a single-atom catalyst for CO oxidation[J]. J Mater Chem A,2016,4(13):4871−4876. doi: 10.1039/C6TA00554C
[69]	ZHAO D, CHEN Z, YANG W, LIU S, ZHANG X, YU Y, CHEONG W, ZHENG L, REN F, YING G, CAO X, WANG D, PENG Q, WANG G, CHEN C. MXene (Ti₃C₂) vacancy-confined single-atom catalyst for efficient functionalization of CO₂[J]. J Am Chem Soc,2019,141(9):4086−4093. doi: 10.1021/jacs.8b13579
[70]	LI N, WANG X, LU X, ZHANG P, ONG W J. Comprehensive mechanism of CO₂ electroreduction on non-noble metal single-atom catalysts of Mo₂CS₂‐MXene[J]. Chem-Eur J,2021,27(71):17900−17909. doi: 10.1002/chem.202103218
[71]	LU S, ZHANG Y, LOU F, YU Z. Theoretical study of single transition metal atom catalysts supported on two-dimensional Nb₂NO₂ for efficient electrochemical CO₂ reduction to CH₄[J]. J CO₂ Util,2022,62:102069. doi: 10.1016/j.jcou.2022.102069
[72]	LI N, PENG J, SHI Z, ZHANG P, LI X. Charge transfer and orbital reconstruction of non‐noble transition metal single-atoms anchored on Ti₂CTx-MXenes for highly selective CO₂ electrochemical reduction[J]. Chin J Catal,2022,43:1906−1917. doi: 10.1016/S1872-2067(21)64018-4
[73]	XIAO Y, ZHANG W. High throughput screening of M₃C₂ MXenes for efficient CO₂ reduction conversion into hydrocarbon fuels[J]. Nanoscale,2020,12(14):7660−7673. doi: 10.1039/C9NR10598K
[74]	NI Y, MIAO L, WANG J, LIU J, YUAN M, CHEN J. Pore size effect of graphyne supports on CO₂ electrocatalytic activity of Cu single atoms[J]. Phys Chem Chem Phys,2020,22(3):1181−1186. doi: 10.1039/C9CP05624F
[75]	SHI G, XIE Y, DU L, FU X, CHEN X, XIE W, LU T B, YUAN M, WANG M. Constructing Cu−C bonds in a graphdiyne-regulated Cu single-atom electrocatalyst for CO₂ reduction to CH₄[J]. Angew Chem Int Ed, 2022, 134(23).
[76]	WANG M, KONG L, LU X, LAWRENCE WU C. First-row transition metal embedded pyrazine-based graphynes as high-performance single atom catalysts for the CO₂ reduction reaction[J]. J Mater Chem A,2022,10(16):9048−9058. doi: 10.1039/D2TA00654E