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Co-Co3O4@carbon core–shells derived from metal−organic framework nanocrystals as efficient hydrogen evolution catalysts

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Abstract

Controllable pyrolysis of metal−organic frameworks (MOFs) in confined spaces is a promising strategy for the design and development of advanced functional materials. In this study, Co-Co3O4@carbon composites were synthesized via pyrolysis of a Co-MOFs@glucose polymer (Co-MOFs@GP) followed by partial oxidation of Co nanoparticles (NPs). The pyrolysis of Co-MOFs@GP generated a core–shell structure composed of carbon shells and Co NPs. The controlled partial oxidation of Co NPs formed Co-Co3O4 heterojunctions confined in carbon shells. Compared with Co-MOFs@GP and Co@carbon-n (Co@C-n), Co-Co3O4@carbon-n (Co-Co3O4@C-n) exhibited higher catalytic activity during NaBH4 hydrolysis. Co-Co3O4@C-II provided a maximum specific H2 generation rate of 5,360 mL·min−1·gCo −1 at room temperature due to synergistic interactions between Co and Co3O4 NPs. The Co NPs also endowed Co-Co3O4@C-n with the ferromagnetism needed to complete the magnetic momentum transfer process. This assembly-pyrolysis-oxidation strategy may be an efficient method of preparing novel nanocomposites.

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References

  1. Wu, R. B.; Wang, D. P.; Rui, X. H.; Liu, B.; Zhou, K.; Law, A. W. K.; Yan, Q. Y.; Wei, J.; Chen, Z. In-situ formation of hollow hybrids composed of cobalt sulfides embedded within porous carbon polyhedra/carbon nanotubes for highperformance lithium-ion batteries. Adv. Mater. 2015, 27, 3038–3044.

    Article  Google Scholar 

  2. Amali, A. J.; Hoshino, H.; Wu, C.; Ando, M.; Xu, Q. From metal–organic framework to intrinsically fluorescent carbon nanodots. Chem.—Eur. J. 2014, 20, 8279–8282.

    Article  Google Scholar 

  3. Cho, W.; Park, S.; Oh, M. Coordination polymer nanorods of Fe-MIL-88B and their utilization for selective preparation of hematite and magnetite nanorods. Chem. Commun. 2011, 47, 4138–4140.

    Article  Google Scholar 

  4. Aiyappa, H. B.; Pachfule, P.; Banerjee, R.; Kurungot, S. Porous carbons from nonporous MOFs: Influence of ligand characteristics on intrinsic properties of end carbon. Cryst. Growth Des. 2013, 13, 4195–4199.

    Article  Google Scholar 

  5. Tang, J.; Salunkhe, R. R.; Liu, J.; Torad, N. L.; Imura, M.; Furukawa, S.; Yamauchi, Y. Thermal conversion of core–shell metal–organic frameworks: A new method for selectively functionalized nanoporous hybrid carbon. J. Am. Chem. Soc. 2015, 137, 1572–1580.

    Article  Google Scholar 

  6. Srinivas, G.; Krungleviciute, V.; Guo, Z. X.; Yildirim, T. Exceptional CO2 capture in a hierarchically porous carbon with simultaneous high surface area and pore volume. Energy Environ. Sci. 2014, 7, 335–342.

    Article  Google Scholar 

  7. Jia, Y.; Sun, C. H.; Peng, Y.; Fang, W. Q.; Yan, X. C.; Yang, D. J.; Zou, J.; Mao, S. S.; Yao, X. D. Metallic Ni nanocatalyst in situ formed from a metal–organic-framework by mechanochemical reaction for hydrogen storage in magnesium. J. Mater. Chem. A 2015, 3, 8294–8299.

    Article  Google Scholar 

  8. Huang, G.; Zhang, F. F.; Du, X. C.; Qin, Y. L.; Yin, D. M.; Wang, L. M. Metal organic frameworks route to in situ insertion of multiwalled carbon nanotubes in Co3O4 polyhedra as anode materials for lithium-ion batteries. ACS Nano 2015, 9, 1592–1599.

    Article  Google Scholar 

  9. Liu, J. Y.; Yan, J.; Ji, H. Y.; Xu, Y. G.; Huang, L. Y.; Li, Y. P.; Song, Y. H.; Zhang, Q.; Xu, H.; Li, H. M. Controlled synthesis of ordered mesoporous g-C3N4 with a confined space effect on its photocatalytic activity. Mater. Sci. Semicon. Proc. 2016, 46, 59–68.

    Article  Google Scholar 

  10. Manna, P.; Debgupta, J.; Bose, S.; Das, S. K. A mononuclear CoII coordination complex locked in a confined space and acting as an electrochemical water-oxidation catalyst: A “ship-in-a-bottle” approach. Angew. Chem., Int. Ed. 2016, 55, 2425–2430.

    Article  Google Scholar 

  11. Fei, L. F.; Li, X. G.; Bi, W. T.; Zhuo, Z. W.; Wei, W. F.; Sun, L.; Lu, W.; Wu, X. J.; Xie, K. Y.; Wu, C. Z. et al. Graphene/sulfur hybrid nanosheets from a space-confined “Sauna” reaction for high-performance lithium–sulfur batteries. Adv. Mater. 2015, 27, 5936–5942.

    Article  Google Scholar 

  12. Xu, S. K.; Zhang, P.; Li, H. B.; Wei, H. J.; Li, L. M.; Li, B. J.; Wang, X. Y. Ru nanoparticles confined in carbon nanotubes: Supercritical CO2 assisted preparation and improved catalytic performances in hydrogenation of D-glucose. RSC Adv. 2014, 4, 7079–7083.

    Article  Google Scholar 

  13. Zou, F.; Chen, Y. P.; Liu, K. W.; Yu, Z. T.; Liang, W. F.; Bhaway, S. M.; Gao, M.; Zhu, Y. Metal organic frameworks derived hierarchical hollow NiO/Ni/graphene composites for lithium and sodium storage. ACS Nano 2016, 10, 377–386.

    Article  Google Scholar 

  14. Chen, Y. H.; Kanan, M. W. Tin oxide dependence of the CO2 reduction efficiency on tin electrodes and enhanced activity for tin/tin oxide thin-film catalysts. J. Am. Chem. Soc. 2012, 134, 1986–1989.

    Article  Google Scholar 

  15. Bi, Q. Y.; Lin, J. D.; Liu, Y. M.; He, H. Y.; Huang, F. Q.; Cao, Y. Dehydrogenation of formic acid at room temperature: Boosting palladium nanoparticle efficiency by coupling with pyridinic nitrogen-doped carbon. Angew. Chem., Int. Ed. 2016, 55, 11849–11853.

    Article  Google Scholar 

  16. Xia, W.; Zou, R. Q.; An, L.; Xia, D. G.; Guo, S. J. A metal–organic framework route to in situ encapsulation of Co@Co3O4@C core@bishell nanoparticles into a highly ordered porous carbon matrix for oxygen reduction. Energy Environ. Sci. 2015, 8, 568–576.

    Article  Google Scholar 

  17. Gao, S.; Lin, Y.; Jiao, X. C.; Sun, Y. F.; Luo, Q. Q.; Zhang, W. H.; Li, D. Q.; Yang, J. L.; Xie, Y. Partially oxidized atomic cobalt layers for carbon dioxide electroreduction to liquid fuel. Nature 2016, 529, 68–71.

    Article  Google Scholar 

  18. Wu, G. P.; Wang, J.; Ding, W.; Nie, Y.; Li, L.; Qi, X. Q.; Chen, S. G.; Wei, Z. D. A strategy to promote the electrocatalytic activity of spinels for oxygen reduction by structure reversal. Angew. Chem., Int. Ed. 2016, 55, 1340–1344.

    Article  Google Scholar 

  19. Wang, J.; Zhong, H. X.; Wang, Z. L.; Meng, F. L.; Zhang, X. B. Integrated three-dimensional carbon paper/carbon tubes/cobalt-sulfide sheets as an efficient electrode for overall water splitting. ACS Nano 2016, 10, 2342–2348.

    Article  Google Scholar 

  20. Wang, J.; Zhang, X. B.; Wang, Z. L.; Wang, L. M.; Zhang, Y. Rhodium-nickel nanoparticles grown on graphene as highly efficient catalyst for complete decomposition of hydrous hydrazine at room temperature for chemical hydrogen storage. Energy Environ. Sci. 2012, 5, 6885–6888.

    Article  Google Scholar 

  21. Wang, J.; Qin, Y. L.; Liu, X.; Zhang, X. B. In situ synthesis of magnetically recyclable graphene-supported Pd@Co core–shell nanoparticles as efficient catalysts for hydrolytic dehydrogenation of ammonia borane. J. Mater. Chem. 2012, 22, 12468–12470.

    Article  Google Scholar 

  22. Qin, Y. L.; Wang, J.; Meng, F. Z.; Wang, L. M.; Zhang, X. B. Efficient PdNi and PdNi@Pd-catalyzed hydrogen generation via formic acid decomposition at room temperature. Chem. Commun. 2013, 49, 10028–10030.

    Article  Google Scholar 

  23. Wang, Z. L.; Hao, X. F.; Jiang, Z.; Sun, X. P.; Xu, D.; Wang, J.; Zhong, H. X.; Meng, F. L.; Zhang, X. B. C and N hybrid coordination derived Co-C-N complex as a highly efficient electrocatalyst for hydrogen evolution reaction. J. Am. Chem. Soc. 2015, 137, 15070–15073.

    Article  Google Scholar 

  24. Zhou, L. M.; Zhang, T. R.; Tao, Z. L.; Chen, J. Ni nanoparticles supported on carbon as efficient catalysts for the hydrolysis of ammonia borane. Nano Res. 2014, 7, 774–781.

    Article  Google Scholar 

  25. Yan, J. M.; Zhang, X. B.; Akita, T.; Haruta, M.; Xu, Q. One-step seeding growth of magnetically recyclable Au@Co core–shell nanoparticles: Highly efficient catalyst for hydrolytic dehydrogenation of ammonia borane. J. Am. Chem. Soc. 2010, 132, 5326–5327.

    Article  Google Scholar 

  26. Zhu, J.; Li, R.; Niu, W. L.; Wu, Y. J.; Gou, X. L. Facile hydrogen generation using colloidal carbon supported cobalt to catalyze hydrolysis of sodium borohydride. J. Power Sources 2012, 211, 33–39.

    Article  Google Scholar 

  27. Lu, A. L.; Chen, Y. Z.; Jin, J. R.; Yue, G. H.; Peng, D. L. CoO nanocrystals as a highly active catalyst for the generation of hydrogen from hydrolysis of sodium borohydride. J. Power Sources 2012, 220, 391–398.

    Article  Google Scholar 

  28. Niu, W. L.; Ren, D. B.; Han, Y. Y.; Wu, Y. J.; Gou, X. L. Optimizing preparation of carbon supported cobalt catalyst for hydrogen generation from NaBH4 hydrolysis. J. Alloys Compd. 2012, 543, 159–166.

    Article  Google Scholar 

  29. Zhang, H.; Ling, T.; Du, X. W. Gas-phase cation exchange toward porous single-crystal CoO nanorods for catalytic hydrogen production. Chem. Mater. 2015, 27, 352–357.

    Article  Google Scholar 

  30. Mahmood, J.; Jung, S. M.; Kim, S. J.; Park, J.; Yoo, J. W.; Baek, J. B. Cobalt oxide encapsulated in C2N-h 2D network polymer as a catalyst for hydrogen evolution. Chem. Mater. 2015, 27, 4860–4864.

    Article  Google Scholar 

  31. Liu, Y. Y.; Zhang, J.; Zhang, X. J.; Li, B. J.; Wang, X. Y.; Cao, H. Q.; Wei, D.; Zhou, Z. F.; Cheetham, A. K. Magnetic catalysts as nanoactuators to achieve simultaneous momentumtransfer and continuous-flow hydrogen production. J. Mater. Chem. A 2016, 4, 4280–4287.

    Article  Google Scholar 

  32. Xing, C. C.; Liu, Y. Y.; Su, Y. H.; Chen, Y. H.; Hao, S.; Wu, X. L.; Wang, X. Y.; Cao, H. Q.; Li, B. J. Structural evolution of Co-based metal organic frameworks in pyrolysis for synthesis of core–shells on nanosheets: Co@CoOx@carbonrGO composites for enhanced hydrogen generation activity. ACS Appl. Mater. Interfaces 2016, 8, 15430–15438.

    Article  Google Scholar 

  33. Duan, S. S.; Han, G. S.; Su, Y. H.; Zhang, X. Y.; Liu, Y. Y.; Wu, X. L.; Li, B. J. Magnetic Co@g-C3N4 core–shells on rGO sheets for momentum transfer with catalytic activity toward continuous-flow hydrogen generation. Langmuir 2016, 32, 6272–6281.

    Article  Google Scholar 

  34. Yu, G. L.; Sun, J.; Muhammad, F.; Wang, P. Y.; Zhu, G. S. Cobalt-based metal organic framework as precursor to achieve superior catalytic activity for aerobic epoxidation of styrene. RSC Adv. 2014, 4, 38804–38811.

    Article  Google Scholar 

  35. Banerjee, R.; Phan, A.; Wang, B.; Knobler, C.; Furukawa, H.; O'Keeffe, M.; Yaghi, O. M. High-throughput synthesis of zeolitic imidazolate frameworks and application to CO2 capture. Science 2008, 319, 939–943.

    Article  Google Scholar 

  36. Rong, C. B.; Poudyal, N.; Chaubey, G. S.; Nandwana, V.; Liu, Y.; Wu, Y. Q.; Kramer, M. J.; Kozlov, M. E.; Baughman, R. H.; Liu, J. P. High thermal stability of carbon-coated L10-FePt nanoparticles prepared by salt-matrix annealing. J. Appl. Phys. 2008, 103, 07E131.

    Article  Google Scholar 

  37. Qian, J. F.; Sun, F. A.; Qin, L. Z. Hydrothermal synthesis of zeolitic imidazolate framework-67 (ZIF-67) nanocrystals. Mater. Lett. 2012, 82, 220–223.

    Article  Google Scholar 

  38. Zhou, Y. X.; Chen, Y. Z.; Cao, L. N.; Lu, J. L.; Jiang, H. L. Conversion of a metal–organic framework to N-doped porous carbon incorporating Co and CoO nanoparticles: Direct oxidation of alcohols to esters. Chem. Commun. 2015, 51, 8292–8295.

    Article  Google Scholar 

  39. Lin, K. Y. A.; Hsu, F. K.; Lee, W. D. Magnetic cobaltgraphene nanocomposite derived from self-assembly of MOFs with graphene oxide as an activator for peroxymonosulfate. J. Mater. Chem. A 2015, 3, 9480–9490.

    Article  Google Scholar 

  40. Zhong, S.; Zhan, C. X.; Cao, D. P. Zeolitic imidazolate framework-derived nitrogen-doped porous carbons as high performance supercapacitor electrode materials. Carbon 2015, 8, 51–59.

    Article  Google Scholar 

  41. Liu, Y. W.; Xiao, C.; Lyu, M. J.; Lin, Y.; Cai, W. Z.; Huang, P. C.; Tong, W.; Zou, Y. M.; Xie, Y. Ultrathin Co3S4 nanosheets that synergistically engineer spin states and exposed polyhedra that promote water oxidation under neutral conditions. Angew. Chem., Int. Ed. 2015, 54, 11231–11235.

    Article  Google Scholar 

  42. Gao, S.; Li, G. D.; Liu, Y. P.; Chen, H.; Feng, L. L.; Wang, Y.; Yang, M.; Wang, D. J.; Wang, S.; Zou, X. X. Electrocatalytic H2 production from seawater over Co, N-codoped nanocarbons. Nanoscale 2015, 7, 2306–2316.

    Article  Google Scholar 

  43. Liu, B.; Kong, D. Z.; Zhang, J.; Wang, Y.; Chen, T. P.; Cheng, C. W.; Yang, H. Y. 3D hierarchical Co3O4@Co3S4 nanoarrays as cathode materials for asymmetric pseudocapacitors. J. Mater. Chem. A 2016, 4, 3287–3296.

    Article  Google Scholar 

  44. Yin, P. Q.; Yao, T.; Wu, Y. E.; Zheng, L. R.; Lin, Y.; Liu, W.; Ju, H. X.; Zhu, J. F.; Hong, X.; Deng, Z. X. et al. Single cobalt atoms with precise N-coordination as superior oxygen reduction reaction catalysts. Angew. Chem., Int. Ed. 2016, 55, 10800–10805.

    Article  Google Scholar 

  45. Wei, J.; Hu, Y. X.; Liang, Y.; Kong, B.; Zhang, J.; Song, J. C.; Bao, Q. L.; Simon, G. P.; Jiang, S. P.; Wang, H. T. Nitrogen-doped nanoporous carbon/graphene nano-sandwiches: Synthesis and application for efficient oxygen reduction. Adv. Funct. Mater. 2015, 25, 5768–5777.

    Article  Google Scholar 

  46. Huang, Y. C.; Ye, K. H.; Li, H. B.; Fan, W. J.; Zhao, F. Y.; Zhang, Y. M.; Ji, H. B. A highly durable catalyst based on CoxMn3–x O4 nanosheets for low-temperature formaldehyde oxidation. Nano Res. 2016, 9, 3881–3892.

    Article  Google Scholar 

  47. Fu, L.; Liu, Z. M.; Liu, Y. Q.; Han, B. X.; Hu, P. G.; Cao, L. C.; Zhu, D. B. Beaded cobalt oxide nanoparticles along carbon nanotubes: Towards more highly integrated electronic devices. Adv. Mater. 2005, 17, 217–221.

    Article  Google Scholar 

  48. Kong, L. J.; Ren, Z. Y.; Zheng, N. N.; Du, S. C.; Wu, J.; Tang, J. L.; Fu, H. G. Interconnected 1D Co3O4 nanowires on reduced graphene oxide for enzymeless H2O2 detection. Nano Res. 2015, 8, 469–480.

    Article  Google Scholar 

  49. Shi, Q.; Wang, Y. D.; Wang, Z. M.; Lei, Y. P.; Wang, B.; Wu, N.; Han, C.; Xie, S.; Gou, Y. Z. Three-dimensional (3D) interconnected networks fabricated via in-situ growth of N-doped graphene/carbon nanotubes on Co-containing carbon nanofibers for enhanced oxygen reduction. Nano Res. 2016, 9, 317–328.

    Article  Google Scholar 

  50. Ingier-Stocka, E. TG and DTA evaluation of cobalt salts and complexes mixed with activated carbon. J. Therm. Anal. Calorim. 2001, 65, 561–573.

    Article  Google Scholar 

  51. Pu, J.; Li, C. W.; Tang, L.; Li, T. T.; Ling, L.; Zhang, K.; Xu, Y. C.; Li, Q. W.; Yao, Y. G. Impregnation assisted synthesis of 3D nitrogen-doped porous carbon with high capacitance. Carbon 2015, 94, 650–660.

    Article  Google Scholar 

  52. Yang, Y.; Lun, Z. Y.; Xia, G. L.; Zheng, F. C.; He, M. N.; Chen, Q. W. Non-precious alloy encapsulated in nitrogendoped graphene layers derived from MOFs as an active and durable hydrogen evolution reaction catalyst. Energy Environ. Sci. 2015, 8, 3563–3571.

    Article  Google Scholar 

  53. Zhong, H. X.; Wang, J.; Zhang, Y. W.; Xu, W. L.; Xing, W.; Xu, D.; Zhang, Y. F.; Zhang, X. B. ZIF-8 derived graphenebased nitrogen-doped porous carbon sheets as highly efficient and durable oxygen reduction electrocatalysts. Angew. Chem., Int. Ed. 2014, 53, 14235–14239.

    Article  Google Scholar 

  54. Liu, Y. Y.; Zhang, W. N.; Li, S. Z.; Cui, C. L.; Wu, J.; Chen, H. Y.; Huo, F. W. Designable yolk–shell nanoparticle@MOF petalous heterostructures. Chem. Mater. 2014, 26, 1119–1125.

    Article  Google Scholar 

  55. Lü, Y. Y.; Zhan, W. W.; He, Y.; Wang, Y. T.; Kong, X. J.; Kuang, Q.; Xie, Z. X.; Zheng, L. S. MOF-templated synthesis of porous Co3O4 concave nanocubes with high specific surface area and their gas sensing properties. ACS Appl. Mater. Interfaces 2014, 6, 4186–4195.

    Article  Google Scholar 

  56. Torad, N. L.; Hu, M.; Ishihara, S.; Sukegawa, H.; Belik, A. A.; Imura, M.; Ariga, K.; Sakka, Y.; Yamauchi, Y. Direct synthesis of MOF-derived nanoporous carbon with magnetic Co nanoparticles toward efficient water treatment. Small 2014, 10, 2096–2107.

    Article  Google Scholar 

  57. Lü, Y. Y.; Wang, Y. T.; Li, H. L.; Lin, Y.; Jiang, Z. Y.; Xie, Z. X.; Kuang, Q.; Zheng, L. S. MOF-derived porous Co/C nanocomposites with excellent electromagnetic wave absorption properties. ACS Appl. Mater. Interfaces 2015, 7, 13604–13611.

    Article  Google Scholar 

  58. Metin, Ö.; Mazumder, V.; Özkar, S.; Sun, S. H. Monodisperse nickel nanoparticles and their catalysis in hydrolytic dehydrogenation of ammonia borane. J. Am. Chem. Soc. 2010, 132, 1468–1469.

    Article  Google Scholar 

  59. Seven, F.; Sahiner, N. Metal ion-imprinted hydrogel with magnetic properties and enhanced catalytic performances in hydrolysis of NaBH4 and NH3BH3. Int. J. Hydrogen Energy 2013, 38, 15275–15284.

    Article  Google Scholar 

  60. Ye, W.; Zhang, H. M.; Xu, D. Y.; Ma, L.; Yi, B. L. Hydrogen generation utilizing alkaline sodium borohydride solution and supported cobalt catalyst. J. Power Sources 2007, 164, 544–548.

    Article  Google Scholar 

  61. Liu, B. H.; Li, Z. P.; Suda, S. Nickel- and cobalt-based catalysts for hydrogen generation by hydrolysis of borohydride. J. Alloys Compd. 2006, 415, 288–293.

    Article  Google Scholar 

  62. Feng, K.; Zhong, J.; Zhao, B. H.; Zhang, H.; Xu, L.; Sun, X. H.; Lee, S. T. CuxCo1–x O nanoparticles on graphene oxide as a synergistic catalyst for high-efficiency hydrolysis of ammonia-borane. Angew. Chem., Int. Ed. 2016, 55, 11950–11954.

    Article  Google Scholar 

  63. Akdim, O.; Demirci, U. B.; Miele, P. Deactivation and reactivation of cobalt in hydrolysis of sodium borohydride. Int. J. Hydrogen Energy 2011, 36, 13669–13675.

    Article  Google Scholar 

  64. Demirci, U. B.; Miele, P. Cobalt-based catalysts for the hydrolysis of NaBH4 and NH3BH3. Phys. Chem. Chem. Phys. 2014, 16, 6872–6885.

    Article  Google Scholar 

  65. Ozerova, A. M.; Simagina, V. I.; Komova, O. V.; Netskina, O. V.; Odegova, G. V.; Bulavchenko, O. A.; Rudina, N. A. Cobalt borate catalysts for hydrogen production via hydrolysis of sodium borohydride. J. Alloys Compd. 2012, 513, 266–272.

    Article  Google Scholar 

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Acknowledgements

Financial supports from the National Natural Science Foundation of China (Nos. 21371154, 21401168, and U1204203) are acknowledged.

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Authors and Affiliations

  1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China

    Yanyan Liu, Guosheng Han, Xiaoyu Zhang, Congcong Xing, Chenxia Du & Baojun Li

  2. Department of Chemistry, Tsinghua University, Beijing, 100084, China

    Huaqiang Cao

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  1. Yanyan Liu
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  2. Guosheng Han
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Liu, Y., Han, G., Zhang, X. et al. Co-Co3O4@carbon core–shells derived from metal−organic framework nanocrystals as efficient hydrogen evolution catalysts. Nano Res. 10, 3035–3048 (2017). https://doi.org/10.1007/s12274-017-1519-1

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