Boron as a superior activator for Pt anode catalyst in direct alcohol fuel cell

Yang, Zhenzhen; Shi, Yao‐Cheng; Wang, Xianshun; Zhang, Genlei; Cui, Peng

doi:10.1016/j.jpowsour.2019.05.052

Cited by 39 publications

(13 citation statements)

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“…This distortion is responsible for higher carrier mobility, leading to metallic conductivity . The surface impurities also stabilize Ti 3+ on the surface as interstitial B allows sufficient Ti 3+ species in TiO 2 . This is supported by our STEM‐EELS measurements.…”

Section: Figuresupporting

confidence: 77%

“…B and N synergistically reduce the band gap of TiO 2 , increasing the performance for photo(electro)catalysis and energy‐storage applications . Additionally, surface B increases electrocatalytic properties in fuel cell applications as a consequence of its high oxygen adsorption ability . Our preliminary electrochemical data shows that the properties of these NWs are governed by the presences of vacancies and associated Ti 3+ states, and their performance improves with increasing vacancy concentration (Figure S8).…”

Section: Figurementioning

confidence: 91%

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Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

et al. 2020

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The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge in measuring trace amounts of often light elements with sub‐nanometer spatial resolution. And yet, these foreign elements (introduced by doping, for example) influence functional properties. We demonstrate how the hydrothermal growth and a partial reduction reaction on hollow TiO2 nanowires leads to the introduction of parts per millions of boron, sodium, and nitrogen. This doping explains the presence of oxygen vacancies and reduced Ti states at the surface, which enhance the functional properties of TiO2. Our results were obtained on model metal oxide nanomaterials and they shed light on a general process that leads to the uncontrolled incorporation of trace impurities in TiO2, thereby, having a strong effect on applications in energy‐harvesting.

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Section: Figuresupporting

confidence: 77%

Section: Figurementioning

confidence: 91%

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

et al. 2020

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“…In the last few decades considerable amount of researches have been devoted towards application of Pt NPs in proton exchange membrane fuel cells (PEMFCs), 215,216 water splitting, 217 and direct alcohol fuel cells 218 . But, due to the high cost of Pt, the applications became limited and now, the researchers are focusing more on developing multicomponent (binary or ternary) catalysts to PdNi and SF-MWCNT-PdSn catalysts produced by MW assisted co-reduction.…”

Section: Electrocatalysismentioning

confidence: 99%

Supported nanocatalysts: recent developments in microwave synthesis for application in heterogeneous catalysis

Ahmad

Hossain

2022

Mater. Adv.

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“…Similar properties have been observed for platinum electrodes doped with boron. These have better electrocatalytic properties and CO tolerance in acidic media than Pt [ 146 ].…”

Section: Electrooxidation Of Alcoholsmentioning

confidence: 99%

Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

Wala

Simka

2021

Molecules

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The growing climate crisis inspires one of the greatest challenges of the 21st century—developing novel power sources. One of the concepts that offer clean, non-fossil electricity production is fuel cells, especially when the role of fuel is played by simple organic molecules, such as low molecular weight alcohols. The greatest drawback of this technology is the lack of electrocatalytic materials that would enhance reaction kinetics and good stability under process conditions. Currently, electrodes for direct alcohol fuel cells (DAFCs) are mainly based on platinum, which not only provides a poor reaction rate but also readily deactivates because of poisoning by reaction products. Because of these disadvantages, many researchers have focused on developing novel electrode materials with electrocatalytic properties towards the oxidation of simple alcohols, such as methanol, ethanol, ethylene glycol or propanol. This paper presents the development of electrode materials and addresses future challenges that still need to be overcome before direct alcohol fuel cells can be commercialized.

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Boron as a superior activator for Pt anode catalyst in direct alcohol fuel cell

Cited by 39 publications

References 59 publications

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Supported nanocatalysts: recent developments in microwave synthesis for application in heterogeneous catalysis

Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

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Boron as a superior activator for Pt anode catalyst in direct alcohol fuel cell

Cited by 39 publications

References 59 publications

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO2 Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO2 Nanowires

Supported nanocatalysts: recent developments in microwave synthesis for application in heterogeneous catalysis

Effect of Anode Material on Electrochemical Oxidation of Low Molecular Weight Alcohols—A Review

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Product

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Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires