Anode‐Engineered Protonic Ceramic Fuel Cell with Excellent Performance and Fuel Compatibility

Hua, Bin; Yan, Ning; Li, Meng; Sun, Yanping; Zhang, Yaqian; Li, Jian; Etsell, Thomas H.; Sarkar, Partha; Luo, Jing‐Li

doi:10.1002/adma.201602103

Cited by 97 publications

(33 citation statements)

References 34 publications

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“…Additionally, small amounts of Ca‐doping can bring a significant increase in the corrosion resistance of perovskite because Ca(OH) 2 and CaCO 3 are easier to decompose than Ba (Sr) compounds. In addition to the intrinsic properties, we also noted that a higher quantity of active areas and porosities, as well as fast electron conduction kinetics, is among the necessities for electrochemical reactions …”

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confidence: 99%

“…[5][6][7][8][9][10][14][15][16][17][18] As a result, perovskites are being spotlighted as promising candidates due to their favorable compositional flexibility and good stability in a wide range of electrochemical window, thus enabling easy modification of their catalytic properties. [21][22][23][24] In this article, we presented excellent catalytic performance and stability toward overall water splitting via La/Ca co-doping A conventional water electrolyzer consists of two electrodes, each of which is embedded with a costly and rare electrocatalyst, typically IrO 2 /C for oxygen evolution reaction (OER) and Pt/C for hydrogen evolution reaction (HER), respectively. [16][17][18] Furthermore, Xu et al proved BSCF is capable of catalyzing HER in alkaline conditions.…”

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confidence: 99%

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All‐In‐One Perovskite Catalyst: Smart Controls of Architecture and Composition toward Enhanced Oxygen/Hydrogen Evolution Reactions

Hua

Zhang

et al. 2017

Advanced Energy Materials

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137

106

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catalysts with low-cost and earth-abundant materials. [5][6][7][8][9][10] In terms of achieving the best performances, the HER is usually carried out in an acidic environment while the OER in an alkaline condition. Nevertheless, practical utilization of these electrodes in an integrated electrolysis device has been hindered since the HER and OER catalysts usually require very different pH values in order to produce long lifetimes and high activities. In this context, a bifunctional electrocatalyst with high activities for both the OER and HER in an identical condition is desired. [10][11][12][13] Most state-of-the-art water splitting catalyst researches have been focused on the development of nonprecious metal catalysts that are competitive to precious metals. [5][6][7][8][9][10][14][15][16][17][18] As a result, perovskites are being spotlighted as promising candidates due to their favorable compositional flexibility and good stability in a wide range of electrochemical window, thus enabling easy modification of their catalytic properties. Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF) has been introduced as an excellent OER catalyst, whose catalytic activity for water oxidation is one order higher than that of IrO 2 in alkaline conditions. [16][17][18] Furthermore, Xu et al. proved BSCF is capable of catalyzing HER in alkaline conditions. [15] They also found that its HER catalytic performance and durability can be drastically improved via proper A-site Pr-doping. Nevertheless, surface amorphous phases in Pr-doped BSCF were still found after the durability test. It was reported that a smaller size mismatch between the host and dopant cations in the A-site has a remarkable effect on rationalizing the stabilities and activities of cubic BSCF. [19,20] Consequently, we predict that the La-doped BSCF would possess better robustness than Pr-doped BSCF (note that the sequence of ion radiuses is Ca 2+

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confidence: 99%

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confidence: 99%

All‐In‐One Perovskite Catalyst: Smart Controls of Architecture and Composition toward Enhanced Oxygen/Hydrogen Evolution Reactions

Hua

Zhang

et al. 2017

Advanced Energy Materials

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137

106

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“…The conventional SSC and GDC powders were synthesized using a sol–gel method. [ 24 ] Sm(NO 3 ) 3 ·6H 2 O, Sr(NO 3 ) 2 , and Co(NO 3 ) 2 ·6H 2 O (Gd(NO 3 ) 3 ·6H 2 O, and Ce(NO 3 ) 3 ·6H 2 O) were dissolved in distilled water with ethylene glycol/citric acid added as the chelating agent. This solution was vaporized in an oven at 300 °C, followed by calcination in air at 1000 °C for 2 h to form the SSC (GDC) powders.…”

Section: Methodsmentioning

confidence: 99%

Dual 3D Ceramic Textile Electrodes: Fast Kinetics for Carbon Oxidation Reaction and Oxygen Reduction Reaction in Direct Carbon Fuel Cells at Reduced Temperatures

Bian

Orme

et al. 2020

Adv Funct Materials

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Direct carbon fuel cells (DCFCs) are an efficient energy-conversion technology capable of generating electricity with carbon-dioxide-capture chemistry with solid carbon as fuels. The efficiency and performance of DCFCs depend on the kinetics of the carbon oxidation reactions (COR) and the oxygen reduction reactions (ORR), each occurring at anode and cathode, respectively. The limited active sites paired with reduced temperatures greatly decrease the efficiency of the electrochemical reactions. Ultraporous dual-3D ceramic textiles (dual-3DCT) are integrated into electrolyte-supported DCFCs to enhance charge and mass transfer at the electrodes. Improved COR at the anode is achieved by the synergy between the 3DCT NiO-Ce 0.8 Gd 0.2 O 1.95 (GDC) structure and optimal carbon fuel choice. In a comparative study, DCFCs using graphitic carbon (GC) as fuel show the best COR performance when compared to DCFCs utilizing alternative fuels such as carbon black (CB) and activated carbon (AC). The 3DCT Sm 0.5 Sr 0.5 CoO 3-δ -GDC (SSC-GDC) composite cathode shows electrochemical performance superior to that of the conventional screenprinted SSC-GDC. A peak power density of 392 mW cm −2 at 600 °C is obtained in a DCFC using the 3DCT-anode/electrolyte/3DCT-cathode configuration, an unprecedented value for any reported DCFC as of yet. This points toward promising applications of dual-3DCT electrodes for reduced-temperature DCFCs.

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“…[1][2][3][4] Thus, establishing effective and sustainable energy conversion and storage systems is extremely important for mankind. Renewable-energy conversion/storage devices, such as fuel cells, [5][6][7][8][9][10] water electrolysis devices, [11][12][13][14][15] and rechargeable metal-air batteries, [16][17][18][19][20] have attracted widespread attention due to their environmental friendliness, low carbon emissions, and good device safety. Currently, noble-metal-based materials, such as Pt-, Pd-, Ru-, and Ir-based catalysts, are common catalysts for energy-related catalytic reactions, [21][22][23][24] including the alcohol oxidation reaction, formic acid oxidation reaction (FAOR), oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and hydrogen oxidation reaction (HOR).…”

Section: Introductionmentioning

confidence: 99%

The use of amino-based functional molecules for the controllable synthesis of noble-metal nanocrystals: a minireview

Wang

et al. 2021

Nanoscale Adv.

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Anode‐Engineered Protonic Ceramic Fuel Cell with Excellent Performance and Fuel Compatibility

Cited by 97 publications

References 34 publications

All‐In‐One Perovskite Catalyst: Smart Controls of Architecture and Composition toward Enhanced Oxygen/Hydrogen Evolution Reactions

All‐In‐One Perovskite Catalyst: Smart Controls of Architecture and Composition toward Enhanced Oxygen/Hydrogen Evolution Reactions

Dual 3D Ceramic Textile Electrodes: Fast Kinetics for Carbon Oxidation Reaction and Oxygen Reduction Reaction in Direct Carbon Fuel Cells at Reduced Temperatures

The use of amino-based functional molecules for the controllable synthesis of noble-metal nanocrystals: a minireview

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