Synergy of Bi2O3 and RuO2 nanocatalysts for low‐overpotential and wide pH‐window electrochemical ammonia synthesis

2021 ◽  
Author(s):  
Qiaoling Wu ◽  
Bing Yu ◽  
Zizhao Deng ◽  
Li Tianyan ◽  
Hui Li ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Low Overpotential

scholarly journals Ambient ammonia synthesis via palladium-catalyzed electrohydrogenation of dinitrogen at low overpotential

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Jun Wang ◽  
Liang Yu ◽  
Lin Hu ◽  
Gang Chen ◽  
Hongliang Xin ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Palladium Catalyzed ◽  
Low Overpotential

Low-overpotential electrochemical ammonia synthesis using BiOCl-modified 2D titanium carbide MXene

2021 ◽  
Author(s):  
Yu Wang ◽  
Munkhbayar Batmunkh ◽  
Hui Mao ◽  
Hui Li ◽  
Baohua Jia ◽  
...  
Keyword(s):  
Titanium Carbide ◽  
Ammonia Synthesis ◽  
Low Overpotential

Electron Donation by Low-Crystalline Ba-La-Ce Oxygen-Deficient Composite Oxide Accumulating on Ru Nanoparticles for Ammonia Synthesis under Mild Conditions

2019 ◽  
Author(s):  
Katsutoshi Sato ◽  
Shin-ichiro Miyahara ◽  
Yuta Ogura ◽  
Kotoko Tsujimaru ◽  
Yuichiro Wada ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Bond Cleavage ◽  
Synthesis Process ◽  
Strong Electron ◽  
Mild Conditions ◽  
Ru Nanoparticles ◽  
Rate Determining Step ◽  
Highly Active ◽  
Composite Oxides ◽  
Low Crystalline

<p>To mitigate global problems related to energy and global warming, it is helpful to develop an ammonia synthesis process using catalysts that are highly active under mild conditions. Here we show that the ammonia synthesis activity of Ru/Ba/LaCeO<i><sub>x</sub></i> pre-reduced at 700 °C is the highest reported among oxide-supported Ru catalysts. Our results indicate that low crystalline oxygen-deficient composite oxides, which include Ba<sup>2+</sup>, Ce<sup>3+</sup> and La<sup>3+</sup>, with strong electron-donating ability, accumulate on Ru particles and thus promote N≡N bond cleavage, which is the rate determining step for ammonia synthesis.</p>

Electron Donation by Low-Crystalline Ba-La-Ce Oxygen-Deficient Composite Oxide Accumulating on Ru Nanoparticles for Ammonia Synthesis under Mild Conditions

2019 ◽  
Author(s):  
Katsutoshi Sato ◽  
Shin-ichiro Miyahara ◽  
Yuta Ogura ◽  
Kotoko Tsujimaru ◽  
Yuichiro Wada ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Bond Cleavage ◽  
Synthesis Process ◽  
Strong Electron ◽  
Mild Conditions ◽  
Ru Nanoparticles ◽  
Rate Determining Step ◽  
Highly Active ◽  
Composite Oxides ◽  
Low Crystalline

<p>To mitigate global problems related to energy and global warming, it is helpful to develop an ammonia synthesis process using catalysts that are highly active under mild conditions. Here we show that the ammonia synthesis activity of Ru/Ba/LaCeO<i><sub>x</sub></i> pre-reduced at 700 °C is the highest reported among oxide-supported Ru catalysts. Our results indicate that low crystalline oxygen-deficient composite oxides, which include Ba<sup>2+</sup>, Ce<sup>3+</sup> and La<sup>3+</sup>, with strong electron-donating ability, accumulate on Ru particles and thus promote N≡N bond cleavage, which is the rate determining step for ammonia synthesis.</p>

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