SAPO-34 templated growth of hierarchical porous graphene cages as electrocatalysts for both oxygen reduction and evolution
Source abstract
Abstract
Three-dimensional hierarchical porous graphene materials with unique properties are of significant importance for the exploration of advanced electrocatalysts for both the oxygen reduction and evolution reactions (ORR/OER). Templated chemical vapor deposition is a favorable strategy to fabricate this kind of graphene, but the number of effective templates is limited. Here, silicoaluminophosphate (SAPO-34) zeolite crystals were used as the catalytic templates for the deposition of hierarchical porous graphene. The graphene obtained consisted of micron-size hollow cubes with mesoporous/nanoporous facets, and ultrathin walls, precisely replicating the structure of the cube-like SAPO-34 zeolite particles. A high doping level of nitrogen (6.84 at%) was achieved by subsequent annealing at 700 °C under ammonia before template removal. Because of the unique porosity, abundant defects, and favorable N-doping, the N-doped graphene exhibited considerable reactivity for both ORR and OER.
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Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced Photocatalysis Techniques · Advanced Battery Materials and Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Surface and interface engineering of noble-metal-free electrocatalysts for efficient energy conversion processes [J]10.1021/acs.accounts.6b00635 ↗
2. Prospects of fuel cell technologies [J]10.1093/nsr/nww099 ↗
3. Nanostructured energy materials for electrochemical energy conversion and storage: A review [J]10.1016/j.jechem.2016.11.003 ↗
4. Nanocarbons and their hybrids as catalysts for non-aqueous lithium-oxygen batteries [J]10.1016/j.jechem.2016.10.012 ↗
5. Applications of porous carbon materials in the electrocatalysis of the oxygen reduction reaction [J]
6. Immobilization of ultrafine metal nanoparticles to high-surface-area materials and their catalytic applications [J]10.1016/j.chempr.2016.07.005 ↗
7. Gold-iridium bifunctional electrocatalyst for oxygen reduction and oxygen evolution reactions [J]10.1016/j.jechem.2016.04.013 ↗
8. An aqueous preoxidation method for monolithic perovskite electrocatalysts with enhanced water oxidation performance [J]10.1126/sciadv.1600495 ↗
9. Anionic regulated nife (oxy)sulfide electrocatalysts for water oxidation [J]10.1002/smll.201700610 ↗
10. Template growth of nitrogen-doped mesoporous graphene on metal oxides and its use as a metal-free bifunctional electrocatalyst for oxygen reduction and evolution reactions [J]10.1016/j.cattod.2017.02.012 ↗
11. Nanocarbon for oxygen reduction electrocatalysis: Dopants, edges, and defects [J]10.1002/adma.201604103 ↗
12. Sulphur-doped ordered mesoporous carbon with enhanced electrocatalytic activity for the oxygen reduction reaction [J]10.1016/j.jechem.2016.02.012 ↗
13. S-doped carbon aerogels/GO composites as oxygen reduction catalysts [J]10.1016/j.jechem.2016.01.005 ↗
14. Spatially confined hybridization of nanometer-sized NiFe hydroxides into nitrogen-doped graphene frameworks leading to superior oxygen evolution reactivity [J]10.1002/adma.201501901 ↗
15. Advances in hybrid electrocatalysts for oxygen evolution reactions: Rational integration of nife layered double hydroxides and nanocarbon [J]10.1002/ppsc.201600004 ↗
16. A review of nanocarbons in energy electrocatalysis: Multifunctional substrates and highly active sites [J]10.1016/j.jechem.2017.08.008 ↗
17. Rational design of three-dimensional nitrogen and phosphorus co-doped graphene nanoribbons/cnts composite for the oxygen reduction [J]10.1016/j.cclet.2016.03.011 ↗
18. Hydrothermal synthesis of porous phosphorus-doped carbon nanotubes and their use in the oxygen reduction reaction and lithium-sulfur batteries [J]10.1016/S1872-5805(16)60019-7 ↗
19. One-step synthesis of cobalt, nitrogen-codoped carbon as nonprecious bifunctional electrocatalyst for oxygen reduction and evolution reactions [J]10.1007/s11434-015-0978-6 ↗
20. Synthesis and characterization of a novel binuclear iron phthalocyanine/reduced graphene oxide nanocomposite for non-precious electrocatalyst for oxygen reduction [J]10.1007/s11426-016-5581-4 ↗
21. Highly compressible macroporous graphene monoliths via an improved hydrothermal process [J]10.1002/adma.201400657 ↗
22. Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition [J]10.1038/nmat3001 ↗
23. CaO-templated growth of hierarchical porous graphene for high-power lithium–sulfur battery applications [J]10.1002/adfm.201503726 ↗
24. Unstacked double-layer templated graphene for high-rate lithium-sulphur batteries [J]10.1038/ncomms4410 ↗
25. In-situ confined growth of monodisperse Pt nanoparticle@graphene nanobox composites as electrocatalytic nanoreactors [J]10.1002/smll.201402289 ↗
26. Pore-structure-mediated hierarchical SAPO-34: Facile synthesis, tunable nanostructure, and catalysis applications for the conversion of dimethyl ether into olefins [J]10.1016/j.partic.2012.12.009 ↗
27. The state-of-the-art synthetic strategies for SAPO-34 zeolite catalysts in methanol-to-olefin conversion [J]
28. 3D mesoporous graphene: CVD self-assembly on porous oxide templates and applications in high-stable Li-S batteries [J]10.1002/smll.201501467 ↗
29. Nitrogen-doped graphene/carbon nanotube hybrids: In situ formation on bifunctional catalysts and their superior electrocatalytic activity for oxygen evolution/reduction reaction [J]10.1002/smll.201303715 ↗
30. Metal-organic-framework-derived dual metal- and nitrogen-doped carbon as efficient and robust oxygen reduction reaction catalysts for microbial fuel cells [J]10.1002/advs.201500265 ↗
31. Design principles for heteroatom-doped nanocarbon to achieve strong anchoring of polysulfides for lithium-sulfur batteries [J]10.1002/smll.201600809 ↗
32. Lithium bond chemistry in lithium-sulfur batteries [J]10.1002/anie.201704324 ↗
33. Toward full exposure of “active sites”: Nanocarbon electrocatalyst with surface enriched nitrogen for superior oxygen reduction and evolution reactivity [J]10.1002/adfm.201401264 ↗
34. Theoretical research progress on the use of graphene in different electrochemical processes [J]
35. Metal-free porous nitrogen-doped carbon nanotubes for enhanced oxygen reduction and evolution reactions [J]10.1007/s11434-016-1073-3 ↗
36. Defect chemistry of nonprecious-metal electrocatalysts for oxygen reactions [J]10.1002/adma.201606459 ↗
37. Microbe-derived carbon materials for electrical energy storage and conversion [J]10.1016/j.jechem.2015.12.001 ↗
38. Significant contribution of intrinsic carbon defects to oxygen reduction activity [J]10.1021/acscatal.5b01835 ↗
39. Topological defects in metal-free nanocarbon for oxygen electrocatalysis [J]10.1002/adma.201601406 ↗
40. Defect graphene as a trifunctional catalyst for electrochemical reactions [J]10.1002/adma.201602912 ↗
41. N-doped graphene as catalysts for oxygen reduction and oxygen evolution reactions: Theoretical considerations [J]10.1016/j.jcat.2014.03.011 ↗