Abstract
The characterization approach is one of the most challenging aspects of researching carbon-based nanomaterials, particularly carbon-based catalysts with defects and atomically dispersion. It's difficult to precisely identify the active sites of catalysts using early characterization approaches, which makes disclosing the catalytic mechanism and constructing high-efficiency catalysts challenging. High-efficiency carbon-based catalysts have improved in recent years, thanks to extensive use of current characterization techniques (e.g., ex-situ, in-situ, and operando) and simulation calculation approaches (e.g., first-principles and molecular dynamics simulation calculations). This chapter emphasizes the characterization methodologies that reveal the true active sites, catalytic processes, and structure–activity relationships of carbon-based nanomaterials from three perspectives: direct visualization, indirect validation, and simulation calculations.
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F. Luo, A. Roy, L. Silvioli, D.A. Cullen, A. Zitolo, M.T. Sougrati, I.C. Oguz, T. Mineva, D. Teschner, S. Wagner, J. Wen, F. Dionigi, U.I. Kramm, J. Rossmeisl, F. Jaouen, P. Strasser, P-block single-metal-site tin/nitrogen-doped carbon fuel cell cathode catalyst for oxygen reduction reaction. Nat. Mater. 19, 1215–1223 (2020). https://doi.org/10.1038/s41563-020-0717-5
X. Chen, M. Peng, X. Cai, Y. Chen, Z. Jia, Y. Deng, B. Mei, Z. Jiang, D. Xiao, X. Wen, N. Wang, H. Liu, D. Ma, Regulating coordination number in atomically dispersed Pt species on defect-rich graphene for n-butane dehydrogenation reaction. Nat. Commun. 12, 2664 (2021). https://doi.org/10.1038/s41467-021-22948-w
T. Wang, X. Cao, H. Qin, L. Shang, S. Zheng, F. Fang, L. Jiao, P-block atomically dispersed antimony catalyst for highly efficient oxygen reduction reaction. Angew. Chem. Int. Ed. 60, 21237–21241 (2021). https://doi.org/10.1002/anie.202108599
Z. Xiao, C. Xie, Y. Wang, R. Chen, S. Wang, Recent advances in defect electrocatalysts: Preparation and characterization. J. Energy Chem. 53, 208–225 (2021). https://doi.org/10.1016/j.jechem.2020.04.063
W.J. Jiang, L. Gu, L. Li, Y. Zhang, X. Zhang, L.J. Zhang, J.Q. Wang, J.S. Hu, Z. Wei, L.J. Wan, Understanding the high activity of Fe–N–C electrocatalysts in oxygen reduction: Fe/Fe3C nanoparticles boost the activity of Fe–N(x). J. Am. Chem. Soc. 138, 3570–3578 (2016). https://doi.org/10.1021/jacs.6b00757
L. Guo, S. Hwang, B. Li, F. Yang, M. Wang, M. Chen, X. Yang, S.G. Karakalos, D.A. Cullen, Z. Feng, G. Wang, G. Wu, H. Xu, Promoting atomically dispersed MnN4 sites via sulfur doping for oxygen reduction: Unveiling intrinsic activity and degradation in fuel cells. ACS Nano 15, 6886–6899 (2021). https://doi.org/10.1021/acsnano.0c10637
R.R. Shahi, O.N. Srivastava, WITHDRAWN: Carbon nanomaterials as catalysts for hydrogen uptake and release by nanocrystalline MgH2. J. Phys. Chem. Solids (2013). https://doi.org/10.1016/j.jpcs.2013.06.015
P. Jiang, J. Chen, C. Wang, K. Yang, S. Gong, S. Liu, Z. Lin, M. Li, G. Xia, Y. Yang, J. Su, Q. Chen, Tuning the activity of carbon for electrocatalytic hydrogen evolution via an iridium-cobalt alloy core encapsulated in nitrogen-doped carbon cages. Adv. Mater. 30, 1705324 (2018). https://doi.org/10.1002/adma.201705324
Z. Weng, Y. Wu, M. Wang, J. Jiang, K. Yang, S. Huo, X.F. Wang, Q. Ma, G.W. Brudvig, V.S. Batista, Y. Liang, Z. Feng, H. Wang, Active sites of copper-complex catalytic materials for electrochemical carbon dioxide reduction. Nat. Commun. 9, 415 (2018). https://doi.org/10.1038/s41467-018-02819-7
D.A. Welch, B.L. Mehdi, H.J. Hatchell, R. Faller, J.E. Evans, N.D. Browning, Using molecular dynamics to quantify the electrical double layer and examine the potential for its direct observation in the in-situ TEM. Adv. Struct. Chem. Imaging 1, 1 (2015). https://doi.org/10.1186/s40679-014-0002-2
D. Liu, K. Ni, J. Ye, J. Xie, Y. Zhu, L. Song, Tailoring the structure of carbon nanomaterials toward high-end energy applications. Adv. Mater. 30, e1802104 (2018). https://doi.org/10.1002/adma.201802104
J.C. Dong, X.G. Zhang, V. Briega Martos, X. Jin, J. Yang, S. Chen, Z.L. Yang, D.Y. Wu, J.M. Feliu, C.T. Williams, Z.Q. Tian, J.F. Li, In situ Raman spectroscopic evidence for oxygen reduction reaction intermediates at platinum single-crystal surfaces. Nat. Energy 4, 60–67 (2018). https://doi.org/10.1038/s41560-018-0292-z
J. Zhang, Z. Gao, S. Wang, G. Wang, X. Gao, B. Zhang, S. Xing, S. Zhao, Y. Qin, Origin of synergistic effects in bicomponent cobalt oxide-platinum catalysts for selective hydrogenation reaction. Nat. Commun. 10, 4166 (2019). https://doi.org/10.1038/s41467-019-11970-8
M. Chen, X. Li, F. Yang, B. Li, T. Stracensky, S. Karakalos, S. Mukerjee, Q. Jia, D. Su, G. Wang, G. Wu, H. Xu, Atomically dispersed MnN4 catalysts via environmentally benign aqueous synthesis for oxygen reduction: Mechanistic understanding of activity and stability improvements. ACS Catal. 10, 10523–10534 (2020). https://doi.org/10.1021/acscatal.0c02490
H. Geng, Y. Peng, L. Qu, H. Zhang, M. Wu, Structure design and composition engineering of carbon-based nanomaterials for lithium energy storage. Adv. Energy Mater. 10, 1903030 (2020). https://doi.org/10.1002/aenm.201903030
F. Huang, Z. Jia, J. Diao, H. Yuan, D. Su, H. Liu, Palladium nanoclusters immobilized on defective nanodiamond-graphene core-shell supports for semihydrogenation of phenylacetylene. J. Energy Chem. 33, 31–36 (2019). https://doi.org/10.1016/j.jechem.2018.08.006
J. King, C. Liu, S.S.C. Chuang, In situ infrared approach to unravel reaction intermediates and pathways on catalyst surfaces. Res. Chem. Intermed. 45, 5831–5847 (2019). https://doi.org/10.1007/s11164-019-04004-x
X. Li, H.Y. Wang, H. Yang, W. Cai, S. Liu, B. Liu, In situ/Operando characterization techniques to probe the electrochemical reactions for energy conversion. Small Methods 2, 1700395 (2018). https://doi.org/10.1002/smtd.201700395
A.D. Handoko, F. Wei, B.S. Jenndy, Z.W.S. Yeo, Understanding heterogeneous electrocatalytic carbon dioxide reduction through operando techniques. Nat. Catal. 1, 922–934 (2018). https://doi.org/10.1038/s41929-018-0182-6
J. Wang, G. Han, L. Wang, L. Du, G. Chen, Y. Gao, Y. Ma, C. Du, X. Cheng, P. Zuo, G. Yin, ZIF-8 with ferrocene encapsulated: A promising precursor to single-atom Fe embedded nitrogen-doped carbon as highly efficient catalyst for oxygen electroreduction. Small 14, 1704282 (2018). https://doi.org/10.1002/smll.201704282
Y. Wang, W. Cheng, P. Yuan, G. Yang, S. Mu, J. Liang, H. Xia, K. Guo, M. Liu, S. Zhao, G. Qu, B.A. Lu, Y. Hu, J. Hu, J.N. Zhang, Boosting nitrogen reduction to ammonia on FeN4 sites by atomic spin regulation. Adv. Sci. 8, e2102915 (2021). https://doi.org/10.1002/advs.202102915
M. Xiao, J. Zhu, G. Li, N. Li, S. Li, Z.P. Cano, L. Ma, P. Cui, P. Xu, G. Jiang, H. Jin, S. Wang, T. Wu, J. Lu, A. Yu, D. Su, Z. Chen, A single-atom iridium heterogeneous catalyst in oxygen reduction reaction. Angew. Chem. Int. Ed. 58, 9640–9645 (2019). https://doi.org/10.1002/anie.201905241
P. Tieu, X. Yan, M. Xu, P. Christopher, X. Pan, Directly probing the local coordination, charge state, and stability of single atom catalysts by advanced electron microscopy: A review. Small 17, e2006482 (2021). https://doi.org/10.1002/small.202006482
R. Qin, K. Liu, Q. Wu, N. Zheng, Surface coordination chemistry of atomically dispersed metal catalysts. Chem. Rev. 120, 11810–11899 (2020). https://doi.org/10.1021/acs.chemrev.0c00094
M.W. Glasscott, A.D. Pendergast, M.H. Choudhury, J.E. Dick, Advanced characterization techniques for evaluating porosity, nanopore tortuosity, and electrical connectivity at the single-nanoparticle level. ACS Appl. Nano Mater. 2, 819–830 (2018). https://doi.org/10.1021/acsanm.8b02051
Y. Wang, H. Su, Y. He, L. Li, S. Zhu, H. Shen, P. Xie, X. Fu, G. Zhou, C. Feng, D. Zhao, F. Xiao, X. Zhu, Y. Zeng, M. Shao, S. Chen, G. Wu, J. Zeng, C. Wang, Advanced electrocatalysts with single-metal-atom active sites. Chem. Rev. 120, 12217–12314 (2020). https://doi.org/10.1021/acs.chemrev.0c00594
S.W. Lee, J. Kim, S. Chen, P.T. Hammond, Y. Shao-Horn, Carbon nanotube/manganese oxide ultrathin film electrodes for electrochemical capacitors. ACS Nano 4, 3889–3896 (2010). https://doi.org/10.1021/nn100681d
Y. Han, Y.G. Wang, W. Chen, R. Xu, L. Zheng, J. Zhang, J. Luo, R.A. Shen, Y. Zhu, W.C. Cheong, C. Chen, Q. Peng, D. Wang, Y. Li, Hollow N-doped carbon spheres with isolated cobalt single atomic sites: Superior electrocatalysts for oxygen reduction. J. Am. Chem. Soc. 139, 17269–17272 (2017). https://doi.org/10.1021/jacs.7b10194
L. Zhou, P. Zhou, Y. Zhang, B. Liu, P. Gao, S. Guo, 3D star-like atypical hybrid MOF derived single-atom catalyst boosts oxygen reduction catalysis. J. Energy Chem. 55, 355–360 (2021). https://doi.org/10.1016/j.jechem.2020.06.059
J. Chen, Z. Ou, H. Chen, S. Song, K. Wang, Y. Wang, Recent developments of nanocarbon based supports for PEMFCs electrocatalysts. Chin. J. Catal. 42, 1297–1326 (2021). https://doi.org/10.1016/s1872-2067(20)63736-6
J. Pan, S. Yu, Z. Jing, Q. Zhou, Y. Dong, X. Lou, F. Xia, Electrocatalytic hydrogen evolution reaction related to nanochannel materials. Small Struct. 2, 2100076 (2021). https://doi.org/10.1002/sstr.202100076
C.H. Choi, M. Kim, H.C. Kwon, S.J. Cho, S. Yun, H.T. Kim, K.J. Mayrhofer, H. Kim, M. Choi, Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst. Nat. Commun. 7, 10922 (2016). https://doi.org/10.1038/ncomms10922
Y. Shang, X. Duan, S. Wang, Q. Yue, B. Gao, X. Xu, Carbon-based single atom catalyst: Synthesis, characterization, DFT calculations. Chin. Chem. Lett. (2021). https://doi.org/10.1016/j.cclet.2021.07.050
L.Z. Zhang, Y. Jia, G.P. Gao, X.C. Yan, N. Chen, J. Chen, M.T. Soo, B. Wood, D.J. Yang, A.J. Du, X.D. Yao, Graphene defects trap atomic Ni species for hydrogen and oxygen evolution reactions. Chem 4, 285–297 (2018). https://doi.org/10.1016/j.chempr.2017.12.005
L. Fan, P.F. Liu, X. Yan, L. Gu, Z.Z. Yang, H.G. Yang, S. Qiu, X. Yao, Atomically isolated nickel species anchored on graphitized carbon for efficient hydrogen evolution electrocatalysis. Nat. Commun. 7, 10667 (2016). https://doi.org/10.1038/ncomms10667
H.T. Chung, D.A. Cullen, D. Higgins, B.T. Sneed, E.F. Holby, K.L. More, P. Zelenay, Direct atomic-level insight into the active sites of a high-performance PGM-free ORR catalyst. Science 357, 479–484 (2017). https://doi.org/10.1126/science.aan2255
X. Dai, Z. Chen, T. Yao, L. Zheng, Y. Lin, W. Liu, H. Ju, J. Zhu, X. Hong, S. Wei, Y. Wu, Y. Li, Single Ni sites distributed on N-doped carbon for selective hydrogenation of acetylene. Chem. Commun. 53, 11568–11571 (2017). https://doi.org/10.1039/c7cc04820c
P.L. Gai, E.D. Boyes, In-situ environmental (scanning) transmission electron microscopy of catalysts at the atomic level. J. Phys: Conf. Ser. 522, 012002 (2014). https://doi.org/10.1088/1742-6596/522/1/012002
D. Xue, H. Xia, W. Yan, J. Zhang, S. Mu, Defect engineering on carbon-based catalysts for electrocatalytic CO2 reduction. Nano-Micro Lett. 13, 5 (2020). https://doi.org/10.1007/s40820-020-00538-7
D. Deng, X. Pan, L. Yu, Y. Cui, Y. Jiang, J. Qi, W.X. Li, Q. Fu, X. Ma, Q. Xue, G. Sun, X. Bao, Toward N-doped graphene via solvothermal synthesis. Chem. Mater. 23, 1188–1193 (2011). https://doi.org/10.1021/cm102666r
Q. Liu, Y. Liu, H. Li, L. Li, D. Deng, F. Yang, X. Bao, Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix. Appl. Surf. Sci. 410, 111–116 (2017). https://doi.org/10.1016/j.apsusc.2017.03.090
R.J. Nicholls, A.T. Murdock, J. Tsang, J. Britton, T.J. Pennycook, A. Koos, P.D. Nellist, N. Grobert, J.R. Yates, Probing the bonding in nitrogen-doped graphene using electron energy loss spectroscopy. ACS Nano 7, 7145–7150 (2013). https://doi.org/10.1021/nn402489v
Y. Qiao, P. Yuan, C.W. Pao, Y. Cheng, Z. Pu, Q. Xu, S. Mu, J. Zhang, Boron-rich environment boosting ruthenium boride on B, N doped carbon outperforms platinum for hydrogen evolution reaction in a universal pH range. Nano Energy 75, 104881 (2020). https://doi.org/10.1016/j.nanoen.2020.104881
J. Han, H. Bao, J.Q. Wang, L. Zheng, S. Sun, Z.L. Wang, C. Sun, 3D N-doped ordered mesoporous carbon supported single-atom Fe–N–C catalysts with superior performance for oxygen reduction reaction and zinc-air battery. Appl. Catal. B 280, 119411 (2021). https://doi.org/10.1016/j.apcatb.2020.119411
F. Yang, M. Wang, D. Zhang, J. Yang, M. Zheng, Y. Li, Chirality pure carbon nanotubes: Growth, sorting, and characterization. Chem. Rev. 120, 2693–2758 (2020). https://doi.org/10.1021/acs.chemrev.9b00835
M. Huang, S. Gong, C. Wang, Y. Yang, P. Jiang, P. Wang, L. Hu, Q. Chen, Lewis-basic EDTA as a highly active molecular electrocatalyst for CO2 reduction to CH4. Angew. Chem. Int. Ed. 60, 23002 (2021). https://doi.org/10.1002/anie.202110594
Y. Liu, D. Tian, A.N. Biswas, Z. Xie, S. Hwang, J.H. Lee, H. Meng, J.G. Chen, Transition metal nitrides as promising catalyst supports for tuning CO/H2 syngas production from electrochemical CO2 reduction. Angew. Chem. Int. Ed. 59, 11345–11348 (2020). https://doi.org/10.1002/anie.202003625
C. Jia, X. Tan, Y. Zhao, W. Ren, Y. Li, Z. Su, S.C. Smith, C. Zhao, Sulfur-dopant-promoted electroreduction of CO2 over coordinatively unsaturated Ni–N2 moieties. Angew. Chem. Int. Ed. 60, 23342 (2021). https://doi.org/10.1002/anie.202109373
L. Liang, H. jin, H. Zhou, B. Liu, C. Hu, D. Chen, J. Zhu, Z. Wang, H.W. Li, S. Liu, D. He, S. Mu, Ultra-small platinum nanoparticles segregated by nickle sites for efficient ORR and HER processes. J. Energy Chem. 65, 48–54 (2022). https://doi.org/10.1016/j.jechem.2021.05.033
Y. He, H. Guo, S. Hwang, X. Yang, Z. He, J. Braaten, S. Karakalos, W. Shan, M. Wang, H. Zhou, Z. Feng, K.L. More, G. Wang, D. Su, D.A. Cullen, L. Fei, S. Litster, G. Wu, Single cobalt sites dispersed in hierarchically porous nanofiber networks for durable and high-power PGM-free cathodes in fuel cells. Adv. Mater. 32, e2003577 (2020). https://doi.org/10.1002/adma.202003577
J. Zhang, J. Zhang, F. He, Y. Chen, J. Zhu, D. Wang, S. Mu, H.Y. Yang, Defect and doping co-engineered non-metal nanocarbon ORR electrocatalyst. Nano-Micro Lett. 13, 65 (2021). https://doi.org/10.1007/s40820-020-00579-y
Y. Jia, L. Zhang, A. Du, G. Gao, J. Chen, X. Yan, C.L. Brown, X. Yao, Defect graphene as a trifunctional catalyst for electrochemical reactions. Adv. Mater. 28, 9532–9538 (2016). https://doi.org/10.1002/adma.201602912
X. Li, X. Yang, J. Zhang, Y. Huang, B. Liu, In Situ/Operando techniques for characterization of single-atom catalysts. ACS Catal. 9, 2521–2531 (2019). https://doi.org/10.1021/acscatal.8b04937
A.J. Jebaraj, D.A. Scherson, Microparticle electrodes and single particle microbatteries: electrochemical and in situ micro Raman spectroscopic studies. Acc. Chem. Res. 46, 1192–1205 (2013). https://doi.org/10.1021/ar300210q
X. Xie, C. He, B. Li, Y. He, D.A. Cullen, E.C. Wegener, A.J. Kropf, U. Martinez, Y. Cheng, M.H. Engelhard, M.E. Bowden, M. Song, T. Lemmon, X.S. Li, Z. Nie, J. Liu, D.J. Myers, P. Zelenay, G. Wang, G. Wu, V. Ramani, Y. Shao, Performance enhancement and degradation mechanism identification of a single-atom Co–N–C catalyst for proton exchange membrane fuel cells. Nat. Catal. 3, 1044–1054 (2020). https://doi.org/10.1038/s41929-020-00546-1
G.Y. Qiao, D. Guan, S. Yuan, H. Rao, X. Chen, J.A. Wang, J.S. Qin, J.J. Xu, J. Yu, Perovskite quantum dots encapsulated in a mesoporous metal-organic framework as synergistic photocathode materials. J. Am. Chem. Soc. 143, 14253–14260 (2021). https://doi.org/10.1021/jacs.1c05907
J. Zhang, Z. Xia, L. Dai, Carbon-based electrocatalysts for advanced energy conversion and storage. Sci. Adv. 1, e1500564 (2015). https://doi.org/10.1126/sciadv.1500564
S. Wang, N. Yan, X-ray absorption spectroscopy: An indispensable tool to study single-atom catalysts. Synchrotron Radiat News 33, 18–26 (2020). https://doi.org/10.1080/08940886.2020.1812354
X. Han, T. Zhang, W. Chen, B. Dong, G. Meng, L. Zheng, C. Yang, X. Sun, Z. Zhuang, D. Wang, A. Han, J. Liu, MnN4 oxygen reduction electrocatalyst: Operando investigation of active sites and high performance in zinc-air battery. Adv. Energy Mater. 11, 2002753 (2020). https://doi.org/10.1002/aenm.202002753
H.B. Yang, S.F. Hung, S. Liu, K. Yuan, S. Miao, L. Zhang, X. Huang, H.Y. Wang, W. Cai, R. Chen, J. Gao, X. Yang, W. Chen, Y. Huang, H.M. Chen, C.M. Li, T. Zhang, B. Liu, Atomically dispersed Ni(I) as the active site for electrochemical CO2 reduction. Nat. Energy 3, 140–147 (2018). https://doi.org/10.1038/s41560-017-0078-8
Y. Xing, Z. Yao, W. Li, W. Wu, X. Lu, J. Tian, Z. Li, H. Hu, M. Wu, Fe/Fe3C boosts H2O2 utilization for methane conversion overwhelming O2 generation. Angew. Chem. Int. Ed. 60, 8889–8895 (2021). https://doi.org/10.1002/anie.202016888
S. Song, J. Zhou, X. Su, Y. Wang, J. Li, L. Zhang, G. Xiao, C. Guan, R. Liu, S. Chen, H.J. Lin, S. Zhang, J.Q. Wang, Operando X-ray spectroscopic tracking of self-reconstruction for anchored nanoparticles as high-performance electrocatalysts towards oxygen evolution. Energy Environ. Sci. 11, 2945–2953 (2018). https://doi.org/10.1039/c8ee00773j
J. Wei, S.N. Qin, J. Yang, H.L. Ya, W.H. Huang, H. Zhang, B.J. Hwang, Z.Q. Tian, J.F. Li, Probing single-atom catalysts and catalytic reaction processes by shell-isolated nanoparticle-enhanced Raman spectroscopy. Angew. Chem. Int. Ed. 60, 9306–9310 (2021). https://doi.org/10.1002/anie.202100198
S. Chen, A. Chen, Electrochemical reduction of carbon dioxide on Au nanoparticles: An in situ FTIR study. J. Phys. Chem. C 123, 23898–23906 (2019). https://doi.org/10.1021/acs.jpcc.9b04080
Y. Chen, H. Li, W. Zhao, W. Zhang, J. Li, W. Li, X. Zheng, W. Yan, W. Zhang, J. Zhu, R. Si, J. Zeng, Optimizing reaction paths for methanol synthesis from CO2 hydrogenation via metal-ligand cooperativity. Nat. Commun. 10, 1885 (2019). https://doi.org/10.1038/s41467-019-09918-z
S. Wu, J. Kaiser, X. Guo, L. Li, Y. Lu, M. Ballauff, Recoverable platinum nanocatalysts immobilized on magnetic spherical polyelectrolyte brushes. Ind. Eng. Chem. Res. 51, 5608–5614 (2012). https://doi.org/10.1021/ie2025147
G. Yang, J. Zhu, P. Yuan, Y. Hu, G. Qu, B.A. Lu, X. Xue, H. Yin, W. Cheng, J. Cheng, W. Xu, J. Li, J. Hu, S. Mu, J.N. Zhang, Regulating Fe-spin state by atomically dispersed Mn–N in Fe–N–C catalysts with high oxygen reduction activity. Nat. Commun. 12, 1734 (2021). https://doi.org/10.1038/s41467-021-21919-5
R. Jalem, Y. Morishita, T. Okajima, H. Takeda, Y. Kondo, M. Nakayama, T. Kasuga, Experimental and first-principles DFT study on the electrochemical reactivity of garnet-type solid electrolytes with carbon. J. Mater. Chem. A 4, 14371–14379 (2016). https://doi.org/10.1039/c6ta04280e
T.K. Schwietert, A. Vasileiadis, M. Wagemaker, First-principles prediction of the electrochemical stability and reaction mechanisms of solid-state electrolytes. JACS Au 1, 1488–1496 (2021). https://doi.org/10.1021/jacsau.1c00228
M.R. Philpott, J.N. Glosli, Molecular dynamics simulation of interfacial electrochemical processes: Electric double layer screening. Solid-Liquid Electrochem Interfaces, 13–30
A. Kumar, V.K. Vashistha, D.K. Das, S. Ibraheem, G. Yasin, R. Iqbal, T.A. Nguyen, R.K. Gupta, M. Rasidul Islam, M–N–C-based single-atom catalysts for H2, O2 and CO2 electrocatalysis: Activity descriptors, active sites identification, challenges and prospects. Fuel 304, 121420 (2021). https://doi.org/10.1016/j.fuel.2021.121420
C. Chu, D. Huang, S. Gupta, S. Weon, J. Niu, E. Stavitski, C. Muhich, J.H. Kim, Neighboring Pd single atoms surpass isolated single atoms for selective hydrodehalogenation catalysis. Nat. Commun. 12, 5179 (2021). https://doi.org/10.1038/s41467-021-25526-2
J. Li, H. Zhang, W. Samarakoon, W. Shan, D.A. Cullen, S. Karakalos, M. Chen, D. Gu, K.L. More, G. Wang, Z. Feng, Z. Wang, G. Wu, Thermally driven structure and performance evolution of atomically dispersed FeN4 sites for oxygen reduction. Angew. Chem. Int. Ed. 58, 18971–18980 (2019). https://doi.org/10.1002/anie.201909312
J. Wang, H. Li, S. Liu, Y. Hu, J. Zhang, M. Xia, Y. Hou, J. Tse, J. Zhang, Y. Zhao, Turning on Zn 4s electrons in a N2–Zn–B2 configuration to stimulate remarkable ORR performance. Angew. Chem. Int. Ed. 60, 181–185 (2021). https://doi.org/10.1002/anie.202009991
C.H. Choi, H.K. Lim, M.W. Chung, G. Chon, N. Ranjbar Sahraie, A. Altin, M.T. Sougrati, L. Stievano, H.S. Oh, E.S. Park, F. Luo, P. Strasser, G. Dražić, K.J.J. Mayrhofer, H. Kim, F. Jaouen, The achilles’ heel of iron-based catalysts during oxygen reduction in an acidic medium. Energy Environ. Sci. 11, 3176–3182 (2018). https://doi.org/10.1039/c8ee01855c
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Chen, M., Xue, D., Lu, BA. (2022). Characterization. In: Zhang, JN. (eds) Carbon-Based Nanomaterials for Energy Conversion and Storage. Springer Series in Materials Science, vol 325. Springer, Singapore. https://doi.org/10.1007/978-981-19-4625-7_3
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