Non-metal Catalysts for Dioxygen Reduction in an Acidic Electrolyte

Some additional data about properties and applicability of a styrene-divinylbenzene polymer catalyst containing acidic and redox functional groups are reported. It is shown that the catalysts of this type can be prepared reproducibly and exhibit catalytic properties comparable to the properties of noble metal catalysts.

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Carbon black supported gold nanoparticles for oxygen electroreduction in acidic electrolyte solution

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2008.07.026 ◽

2008 ◽

Vol 624 (1-2) ◽

pp. 64-68 ◽

Cited By ~ 32

Author(s):

Michael Bron

Keyword(s):

Gold Nanoparticles ◽

Carbon Black ◽

Electrolyte Solution ◽

Oxygen Electroreduction ◽

Acidic Electrolyte ◽

Supported Gold Nanoparticles ◽

Supported Gold

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1.8 V Aqueous Symmetric Carbon-Based Supercapacitors with Agarose-Bound Activated Carbons in an Acidic Electrolyte

Nanomaterials ◽

10.3390/nano11071731 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1731

Author(s):

Chih-Chung Lai ◽

Feng-Hao Hsu ◽

Su-Yang Hsu ◽

Ming-Jay Deng ◽

Kueih-Tzu Lu ◽

...

Keyword(s):

Activated Carbon ◽

Sulfuric Acid ◽

Energy Density ◽

Activated Carbons ◽

High Energy ◽

Aqueous Electrolytes ◽

Alternative Material ◽

Aqueous Cells ◽

Acidic Electrolyte ◽

Cycling Behavior

The specific energy of an aqueous carbon supercapacitor is generally small, resulting mainly from a narrow potential window of aqueous electrolytes. Here, we introduced agarose, an ecologically compatible polymer, as a novel binder to fabricate an activated carbon supercapacitor, enabling a wider potential window attributed to a high overpotential of the hydrogen-evolution reaction (HER) of agarose-bound activated carbons in sulfuric acid. Assembled symmetric aqueous cells can be galvanostatically cycled up to 1.8 V, attaining an enhanced energy density of 13.5 W h/kg (9.5 µW h/cm2) at 450 W/kg (315 µW/cm2). Furthermore, a great cycling behavior was obtained, with a 94.2% retention of capacitance after 10,000 cycles at 2 A/g. This work might guide the design of an alternative material for high-energy aqueous supercapacitors.

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Boosting electrochemical nitrogen reduction reaction performance of two-dimensional Mo porphyrin monolayers via turning the coordination environment

Physical Chemistry Chemical Physics ◽

10.1039/d0cp06036d ◽

2021 ◽

Vol 23 (7) ◽

pp. 4178-4186

Author(s):

Shiqiang Liu ◽

Zhiwen Cheng ◽

Yawei Liu ◽

Xiaoping Gao ◽

Yujia Tan ◽

...

Keyword(s):

Energy Conversion ◽

Reduction Reaction ◽

Metal Catalysts ◽

Two Dimensional ◽

Coordination Environment ◽

Nitrogen Reduction ◽

Reaction Performance ◽

Conversion Efficiencies

Designing atomically dispersed metal catalysts for the nitrogen reduction reaction (NRR) is an effective approach to achieve better energy conversion efficiencies.

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