Bioreduction of Precious Metals by Microorganism: Efficient Gold@N-Doped Carbon Electrocatalysts for the Hydrogen Evolution Reaction

2016 ◽  
Vol 128 (29) ◽  
pp. 8556-8560 ◽  
Author(s):  
Weijia Zhou ◽  
Tanli Xiong ◽  
Chaohong Shi ◽  
Jian Zhou ◽  
Kai Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Precious Metals

Diazonium Functionalized Fullerenes: A New Class of Efficient Molecular Catalysts for the Hydrogen Evolution Reaction

Nanoscale ◽  
2021 ◽  
Author(s):  
Olivia Fernandez-Delgado ◽  
Alain Rafael Puente Santiago ◽  
Jolaine Galindo Betancourth ◽  
Mohamed F Sanad ◽  
Sreeprasad T Sreenivasan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Precious Metals ◽  
New Class ◽  
Functionalized Fullerenes ◽  
Molecular Catalysts

Considerable efforts are being made to find cheaper and more efficient alternatives to the currently commercially available catalysts based on precious metals for the Hydrogen Evolution Reaction (HER). In this...

A precious metal-free solar water splitting cell with a bifunctional cobalt phosphide electrocatalyst and doubly promoted bismuth vanadate photoanode

2018 ◽  
Vol 6 (3) ◽  
pp. 1266-1274 ◽  
Author(s):  
Jin Hyun Kim ◽  
Suenghoon Han ◽  
Yim Hyun Jo ◽  
Yunji Bak ◽  
Jae Sung Lee
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Precious Metal ◽  
Precious Metals ◽  
Metal Free ◽  
Solar Water Splitting ◽  
Cobalt Phosphide ◽  
Earth Abundant ◽  
Pec Water Splitting

A bifunctional cobalt phosphide (CoP) electrocatalyst is applied to a doubly promoted BiVO4 photoanode as an oxygen evolution as well as to a cathode as a hydrogen evolution reaction (HER) catalyst to establish a photoelectrochemical (PEC) water splitting cell made of only earth abundant elements without any precious metals.

scholarly journals Platinum single-atom catalyst coupled with transition metal/metal oxide heterostructure for accelerating alkaline hydrogen evolution reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kai Ling Zhou ◽  
Zelin Wang ◽  
Chang Bao Han ◽  
Xiaoxing Ke ◽  
Changhao Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Three Dimensional ◽  
Precious Metals ◽  
Water Dissociation ◽  
High Mass ◽  
Single Atom ◽  
Ni Catalyst ◽  
Metal Metal ◽  
Oxide Heterostructure

AbstractSingle-atom catalysts provide an effective approach to reduce the amount of precious metals meanwhile maintain their catalytic activity. However, the sluggish activity of the catalysts for alkaline water dissociation has hampered advances in highly efficient hydrogen production. Herein, we develop a single-atom platinum immobilized NiO/Ni heterostructure (PtSA-NiO/Ni) as an alkaline hydrogen evolution catalyst. It is found that Pt single atom coupled with NiO/Ni heterostructure enables the tunable binding abilities of hydroxyl ions (OH*) and hydrogen (H*), which efficiently tailors the water dissociation energy and promotes the H* conversion for accelerating alkaline hydrogen evolution reaction. A further enhancement is achieved by constructing PtSA-NiO/Ni nanosheets on Ag nanowires to form a hierarchical three-dimensional morphology. Consequently, the fabricated PtSA-NiO/Ni catalyst displays high alkaline hydrogen evolution performances with a quite high mass activity of 20.6 A mg−1 for Pt at the overpotential of 100 mV, significantly outperforming the reported catalysts.

Mo-Doped ultrafine VC nanoparticles confined in few-layer graphitic nanocarbon for improved electrocatalytic hydrogen evolution

2020 ◽  
Vol 7 (21) ◽  
pp. 4142-4149
Author(s):  
Liyun Cao ◽  
Ning Zhang ◽  
Liangliang Feng ◽  
Danyang He ◽  
Koji Kajiyoshi ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Precious Metals ◽  
Hydrogen Economy ◽  
Highly Efficient

Developing highly efficient, durable electrocatalysts based on cheap, non-precious metals for the hydrogen evolution reaction (HER) is still the key issue in the field of hydrogen economy.

Tungsten-based porous thin-films for electrocatalytic hydrogen generation

2015 ◽  
Vol 3 (11) ◽  
pp. 5798-5804 ◽  
Author(s):  
Huilong Fei ◽  
Yang Yang ◽  
Xiujun Fan ◽  
Gunuk Wang ◽  
Gedeng Ruan ◽  
...  
Keyword(s):  
Thin Films ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Energy Production ◽  
Hydrogen Generation ◽  
Precious Metals ◽  
Clean Energy ◽  
Porous Thin Films

Developing inexpensive and efficient electrocatalysts without using precious metals for the hydrogen evolution reaction (HER) is essential for the realization of economical clean energy production.

Bioreduction of Precious Metals by Microorganism: Efficient Gold@N-Doped Carbon Electrocatalysts for the Hydrogen Evolution Reaction

2016 ◽  
Vol 55 (29) ◽  
pp. 8416-8420 ◽  
Author(s):  
Weijia Zhou ◽  
Tanli Xiong ◽  
Chaohong Shi ◽  
Jian Zhou ◽  
Kai Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Precious Metals

scholarly journals A Nickel Coated Copper Substrate as a Hydrogen Evolution Catalyst

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 58
Author(s):  
Poshan Kumar Reddy Kuppam ◽  
K. M. M. D. K. Kimbulapitiya ◽  
Srikanth Vuppala ◽  
Kuangye Wang ◽  
G. Phaneendra Reddy ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Molybdenum Oxide ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Copper Substrate ◽  
Precious Metals ◽  
Electron Gun ◽  
Scale Production ◽  
Simple Method ◽  
Onset Potential

Replacing precious metals with low-cost metals is the best solution for large scale production. Copper is known for its excellent conductivity and thermal management applications. When it comes to hydrogen evolution reaction, it is highly unstable, especially in KOH solution. In this paper, we approached a simple method to reduce corrosion and improve the performance by depositing nickel-molybdenum oxide and nickel on copper substrates and the achieved tafel slopes of 115 mV/dec and 117 mV/dec at 10 mA/cm2. While at first, molybdenum oxide coated samples showed better performance after 100 cycles of stability tests, the onset potential rapidly changed. Cu–Ni, which was deposited using the electron gun evaporation (e-gun), has shown better performance with 0.28 V at 10 mA/cm2 and led to stability after 100 cycles. Our results show that when copper is alloyed with nickel, it acts as a promising hydrogen evolution reaction (HER) catalyst.

A crystalline–amorphous Ni–Ni(OH)2 core–shell catalyst for the alkaline hydrogen evolution reaction

2020 ◽  
Vol 8 (44) ◽  
pp. 23323-23329
Author(s):  
Jing Hu ◽  
Siwei Li ◽  
Yuzhi Li ◽  
Jing Wang ◽  
Yunchen Du ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Core Shell ◽  
Alkaline Conditions

Crystalline–amorphous Ni–Ni(OH)2 core–shell assembled nanosheets exhibit outstanding electrocatalytic activity and stability for hydrogen evolution under alkaline conditions.

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