Ultralow loading of ruthenium nanoparticles on nitrogen-doped porous carbon enables ultrahigh mass activity for the hydrogen evolution reaction in alkaline media

2021 ◽  
Author(s):  
Qianjun Zhi ◽  
Shuaibo Qin ◽  
Wenping Liu ◽  
Rong Jiang ◽  
Tingting Sun ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Alkaline Media ◽  
Ruthenium Nanoparticles ◽  
Nitrogen Doped ◽  
Ru Nanoparticles ◽  
Mass Activity

Carbon-supported ultrafine Ru nanoparticles with 0.44 wt% Ru loading displayed ultrahigh activity towards hydrogen evolution reaction in alkaline media.

Ruthenium nanoparticles supported on nitrogen-doped porous carbon as a highly efficient catalyst for hydrogen evolution from ammonia borane

2019 ◽  
Vol 43 (11) ◽  
pp. 4377-4384 ◽  
Author(s):  
Zhenkai Cui ◽  
Yueping Guo ◽  
Zhishang Feng ◽  
Dan Xu ◽  
Jiantai Ma
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Ammonia Borane ◽  
Two Dimensional ◽  
Ruthenium Nanoparticles ◽  
Efficient Catalyst ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Ru Nanoparticles

The two-dimensional magnetic NC-Fe materials were prepared and modified with Ru nanoparticles to form Ru/NC-Fe nanocatalyst with excellent catalytic activity for hydrogen evolution from ammonia borane.

scholarly journals Oxygen Reduction Reaction and Hydrogen Evolution Reaction Catalyzed by Pd–Ru Nanoparticles Encapsulated in Porous Carbon Nanosheets

Catalysts ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 329 ◽  
Author(s):  
Juntai Tian ◽  
Wen Wu ◽  
Zhenghua Tang ◽  
Yuan Wu ◽  
Robert Burns ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Carbon Nanosheets ◽  
X Ray ◽  
Ru Nanoparticles

Developing bi-functional electrocatalysts for both oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) is crucial for enhancing the energy transfer efficiency of metal–air batteries and fuel cells, as well as producing hydrogen with a high purity. Herein, a series of Pd–Ru alloyed nanoparticles encapsulated in porous carbon nanosheets (CNs) were synthesized and employed as a bifunctional electrocatalyst for both ORR and HER. The TEM measurements showed that Pd–Ru nanoparticles, with a size of approximately 1–5 nm, were uniformly dispersed on the carbon nanosheets. The crystal and electronic structures of the PdxRu100−x/CNs series were revealed by powder X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The as-prepared samples exhibited effective ORR activity in alkaline media and excellent HER activity in both alkaline and acid solutions. The Pd50Ru50/CNs sample displayed the best activity and stability among the series, which is comparable and superior to that of commercial 10% Pd/C. For ORR, the Pd50Ru50/CNs catalyst exhibited an onset potential of 0.903 V vs. RHE (Reversible Hydrogen Electrode) and 11.4% decrease of the current density after 30,000 s of continuous operation in stability test. For HER, the Pd50Ru50/CNs catalyst displayed an overpotential of 37.3 mV and 45.1 mV at 10 mA cm−2 in 0.1 M KOH and 0.5 M H2SO4, respectively. The strategy for encapsulating bimetallic alloys within porous carbon materials is promising for fabricating sustainable energy toward electrocatalysts with multiple electrocatalytic activities for energy related applications.

Double‐Solvent Induced Ultrafine Ruthenium Nanoparticles on Porous Carbon for Highly Efficient Hydrogen Evolution Reaction

ChemCatChem ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2880-2885 ◽  
Author(s):  
Zitao Zhang ◽  
Song Gao ◽  
Zibin Liang ◽  
Kexin Zhang ◽  
Huichuan Guo ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Ruthenium Nanoparticles ◽  
Highly Efficient

Decorating WSe2 nanosheets with ultrafine Ru nanoparticles for boosting electrocatalytic hydrogen evolution in alkaline electrolytes

2019 ◽  
Vol 6 (6) ◽  
pp. 1382-1387 ◽  
Author(s):  
Yuanmeng Zhao ◽  
Guixiang Mao ◽  
Chaozhang Huang ◽  
Ping Cai ◽  
Gongzhen Cheng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Media ◽  
Synthetic Approach ◽  
Synergy Effect ◽  
Ru Nanoparticles ◽  
Alkaline Electrolytes

Ultrafine Ru nanoparticle decorated WSe2 nanosheets have been synthesized through a colloidal synthetic approach, which exhibit superior hydrogen evolution reaction (HER) performance in alkaline media due to the interfacial synergy effect.

Ruthenium Nanoparticles Anchored on Graphene Hollow Nanospheres Superior to Platinum for the Hydrogen Evolution Reaction in Alkaline Media

2019 ◽  
Vol 59 (1) ◽  
pp. 930-936 ◽  
Author(s):  
Ji-Sen Li ◽  
Meng-Jie Huang ◽  
Ling-Xin Kong ◽  
Xiao-Nan Chen ◽  
Yu-Wei Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Alkaline Media ◽  
Hollow Nanospheres ◽  
Ruthenium Nanoparticles

Sulfur doped ruthenium nanoparticles as a highly efficient electrocatalyst for hydrogen evolution reaction in alkaline media

2021 ◽  
Author(s):  
Cong Lin ◽  
Hongbao Li ◽  
Cheng-Zong Yuan ◽  
Zhengkun Yang ◽  
Hanbao Chong ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Crucial Role ◽  
Alkaline Media ◽  
Energy Crisis ◽  
Ruthenium Nanoparticles ◽  
Highly Efficient ◽  
Electrochemical Water Splitting

Efficient catalysts for hydrogen evolution reaction (HER) play a crucial role in electrochemical water splitting, which is one of the most promising approaches to alleviate the problem of energy crisis...

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