Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Tian, Na; Lu, Bang‐An; Yang, Xiaodong; Huang, Rui; Jiang, Yanxia; Zhou, Zhi‐You; Sun, Shi‐Gang

doi:10.1007/s41918-018-0004-1

Cited by 96 publications

(42 citation statements)

References 175 publications

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“…3 Thus, researchers have made great efforts to replace Pt-based catalysts with non-precious metal ones for enabling the practical application of the technologies, and these metals have been considered for both, cathode [4][5][6] and anode of fuel cells. [7][8][9] Regarding non-precious metal electrocatalysts, many types have been explored, including metal oxides, organometallic complexes, and so on. 10 Among non-precious metal oxide materials, iron (Fe) and cobalt (Co) oxides have been extensively investigated as electrocatalysts for ORR.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Alves

Santos

Viégas

et al. 2019

J. Braz. Chem. Soc.

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This paper presents a comparative study about the oxygen reduction reaction (ORR) catalyzed by nanoparticles of Fe 2 O 3 and Co 3 O 4 applied on the surface of glassy carbon electrodes (GCE). The nanoparticles were synthesized using the modified polymeric precursor method (Pechini). These two nanomaterials were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) techniques. The estimated average particle sizes were 21 and 31 nm for Fe 2 O 3 and Co 3 O 4 , respectively. Electrochemical impedance spectroscopy (EIS) showed that Fe 2 O 3 /GCE has lower charge transfer resistance than Co 3 O 4 /GCE. The surface electrochemistry of both Fe 2 O 3 /GCE and Co 3 O 4 /GCE was studied in the solution free of O 2 , and their corresponding reaction mechanisms were analyzed. The electrocatalytic ORR activities of these two catalysts were studied by cyclic voltammetry (CV) and rotating disk electrode (RDE) in acidic solution. The results obtained by RDE indicated that both Fe 2 O 3 /GCE and Co 3 O 4 /GCE can catalyze the ORR with a dominating 2-electron transfer process to produce H 2 O 2 , using a potential of −0.8 V. These kinetic results indicate that Fe 2 O 3 /GCE is more efficient than Co 3 O 4 /GCE in terms of ORR. Considering the low cost of these two non-noble metal catalysts, they may be used as viable alternatives for ORR electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Alves

Santos

Viégas

et al. 2019

J. Braz. Chem. Soc.

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“…From these first examples, many other contributions have been and are being currently published reporting a clear correlation between particle shape and or surface structure and enhanced electrocatalytic activities. In fact, there already exist several and excellent reviews related to the application of shaped metal nanoparticles for different electrocatalytic reactions [6,7,20,[137][138][139][140][141][142][143][144][145][146][147][148][149][150].…”

Section: Electrocatalysis On Shape-controlled Metal Nanoparticles: Rementioning

confidence: 99%

“…In addition, taking into account that stepped Pt single-crystal surfaces usually displayed higher ORR catalytic activity than that observed for the basal surfaces [256][257][258][259], several high-index Pt nanoparticles have been explored towards ORR. Readers interested in this topic are referred to some relevant reviews [141,[147][148][149].…”

Section: Oxygen Reduction Reactionmentioning

confidence: 99%

Shape-controlled metal nanoparticles for electrocatalytic applications

Cruz

Montiel

Solla-Gullón

2018

Physical Sciences Reviews

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Abstract The application of shape-controlled metal nanoparticles is profoundly impacting the field of electrocatalysis. On the one hand, their use has remarkably enhanced the electrocatalytic activity of many different reactions of interest. On the other hand, their usage is deeply contributing to a correct understanding of the correlations between shape/surface structure and electrochemical reactivity at the nanoscale. However, from the point of view of an electrochemist, there are a number of questions that must be fully satisfied before the evaluation of the shaped metal nanoparticles as electrocatalysts including (i) surface cleaning, (ii) surface structure characterization, and (iii) correlations between particle shape and surface structure. In this chapter, we will cover all these aspects. Initially, we will collect and discuss about the different practical protocols and procedures for obtaining clean shaped metal nanoparticles. This is an indispensable requirement for the establishment of correct correlations between shape/surface structure and electrochemical reactivity. Next, we will also report how some easy-to-do electrochemical experiments including their subsequent analyses can enormously contribute to a detailed characterization of the surface structure of the shaped metal nanoparticles. At this point, we will remark that the key point determining the resulting electrocatalytic activity is the surface structure of the nanoparticles (obviously, the atomic composition is also extremely relevant) but not the particle shape. Finally, we will summarize some of the most significant advances/results on the use of these shaped metal nanoparticles in electrocatalysis covering a wide range of electrocatalytic reactions including fuel cell-related reactions (electrooxidation of formic acid, methanol and ethanol and oxygen reduction) and also CO2 electroreduction. Graphical Abstract:

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“…The above technologies are expected to solve the issues derived from the instinct intermittency and instability of electricity energy from the renewable energy sources 6–10. With respect to this, several electrochemical energy storage systems, for example, rechargeable alkaline–metal batteries, metal–air batteries, fuel cells, water electrolysis, etc., have been recognized as the compelling options on account of their high efficiencies and reliable storage of electricity 11–16. Among various rechargeable batteries, Li‐ion batteries (LIBs) have been identified to be the relative mature technologies owing to their high energy density and good cycle stability 17–20.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Polymer Electrolytes for Zinc Ion Batteries: Mechanisms, Properties, and Perspectives

Huang

et al. 2020

Advanced Energy Materials

358

240

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Aqueous rechargeable zinc ion batteries (ZIBs) have been deemed to be possible candidates for large‐scale energy storage due to their ecoefficiency, substantial reserve, safety, and low cost. However, the challenges inherent in aqueous electrolytes, such as water splitting reactions, water evaporation, and liquid leakage, have greatly hindered their development in energy storage. Fortunately, polymer electrolytes would be able to overcome the abovementioned challenges. Moreover, the flexible properties of polymer electrolytes can facilitate their future application in wearable electronics. Recently, increasing attention has been attracted to the polymer electrolyte‐based zinc ion batteries. However, the development of polymer electrolytes for ZIBs is still in the early stages due to numerous challenges. Therefore, substantial research effort is required to overcome the challenges of polymer electrolyte‐based ZIBs. In this review, the current progress in developing polymer electrolytes, including solid polymer electrolytes, gel polymer electrolytes, and hybrid polymer electrolytes, as well as the interactions between electrodes and polymer electrolytes for ZIBs is comprehensively reviewed, analyzed, and discussed in terms of their synthesis, characterization, and performance validation. To facilitate further research and development of polymer electrolytes for ZIBs, the relevant challenges are summarized and analyzed, and some underlying approaches to overcome these challenges are also proposed.

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Rational Design and Synthesis of Low-Temperature Fuel Cell Electrocatalysts

Cited by 96 publications

References 175 publications

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Nanoparticles of Fe2O3 and Co3O4 as Efficient Electrocatalysts for Oxygen Reduction Reaction in Acid Medium

Shape-controlled metal nanoparticles for electrocatalytic applications

Recent Advances in Polymer Electrolytes for Zinc Ion Batteries: Mechanisms, Properties, and Perspectives

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