Efficient water splitting catalyzed by flexible NiP2 nanosheet array electrodes under both neutral and alkaline solutions

2017 ◽  
Vol 41 (5) ◽  
pp. 2154-2159 ◽  
Author(s):  
Zonghua Pu ◽  
Ya Xue ◽  
Wenqiang Li ◽  
Ibrahim Saana Amiinu ◽  
Shichun Mu
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Alkaline Solutions ◽  
Nanosheet Array ◽  
Hydrogen Evolution Reactions

NiP2/CC exhibits high activity and stability under both neutral and alkaline solutions towards both oxygen and hydrogen evolution reactions.

Interfacial engineering of Mo2C–Mo3C2 heteronanowires for high performance hydrogen evolution reactions

Nanoscale ◽  
2019 ◽  
Vol 11 (48) ◽  
pp. 23318-23329 ◽  
Author(s):  
Lina Jia ◽  
Chen Li ◽  
Yaru Zhao ◽  
Bitao Liu ◽  
Shixiu Cao ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Precious Metal ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Critical Importance ◽  
Interfacial Engineering ◽  
Hydrogen Evolution Reactions

Non-precious metal-based electrocatalysts with high activity and stability for efficient hydrogen evolution reactions are of critical importance for low-cost and large-scale water splitting.

scholarly journals A Molecular Tetrahedral Cobalt–Seleno-Based Complex as an Efficient Electrocatalyst for Water Splitting

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 945
Author(s):  
Ibrahim Munkaila Abdullahi ◽  
Jahangir Masud ◽  
Polydoros-Chrisovalantis Ioannou ◽  
Eleftherios Ferentinos ◽  
Panayotis Kyritsis ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
High Mass ◽  
Alkaline Solutions ◽  
Hydrogen Evolution Reactions ◽  
Mass Activity ◽  
Turn Over Frequency ◽  
Turn Over

The cobalt–seleno-based coordination complex, [Co{(SePiPr2)2N}2], is reported with respect to its catalytic activity in oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solutions. An overpotential of 320 and 630 mV was required to achieve 10 mA cm−2 for OER and HER, respectively. The overpotential for OER of this CoSe4-containing complex is one of the lowest that has been observed until now for molecular cobalt(II) systems, under the reported conditions. In addition, this cobalt–seleno-based complex exhibits a high mass activity (14.15 A g−1) and a much higher turn-over frequency (TOF) value (0.032 s−1) at an overpotential of 300 mV. These observations confirm analogous ones already reported in the literature pertaining to the potential of molecular cobalt–seleno systems as efficient OER electrocatalysts.

Novel porous tungsten carbide hybrid nanowires on carbon cloth for high-performance hydrogen evolution

2017 ◽  
Vol 5 (25) ◽  
pp. 13196-13203 ◽  
Author(s):  
Bowen Ren ◽  
Dongqi Li ◽  
Qiuyan Jin ◽  
Hao Cui ◽  
Chengxin Wang
Keyword(s):  
Tungsten Carbide ◽  
High Activity ◽  
Hydrogen Evolution ◽  
High Performance ◽  
Alkaline Solutions ◽  
Carbon Cloth ◽  
Porous Tungsten ◽  
Binder Free

Novel 3D porous tungsten carbide hybrid nanowires (p-WCx NWs) are prepared on carbon cloth as a binder-free efficient electrocatalyst for hydrogen evolution. It shows a high activity and outstanding stability in both acidic and alkaline solutions.

scholarly journals Mechanism for spontaneous oxygen and hydrogen evolution reactions on CoO nanoparticles

2019 ◽  
Vol 7 (12) ◽  
pp. 6708-6719 ◽  
Author(s):  
Kyoung-Won Park ◽  
Alexie M. Kolpak
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
High Efficiency ◽  
Applied Bias ◽  
Co Catalyst ◽  
Photocatalytic Water Splitting ◽  
Overall Water Splitting ◽  
Nanoparticle Suspensions ◽  
Hydrogen Evolution Reactions ◽  
Coo Nanoparticles

Overall photocatalytic water splitting with a high efficiency has recently been observed for CoO nanoparticle suspensions in the absence of an applied bias or co-catalyst. This study clarifies the mechanism of spontaneous overall water splitting with the prominent efficiency observed on the CoO nanoparticle.

Cobalt single-atoms anchored on porphyrinic triazine-based frameworks as bifunctional electrocatalysts for oxygen reduction and hydrogen evolution reactions

2019 ◽  
Vol 7 (3) ◽  
pp. 1252-1259 ◽  
Author(s):  
Jun-Dong Yi ◽  
Rui Xu ◽  
Guo-Liang Chai ◽  
Teng Zhang ◽  
Ketao Zang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
High Activity ◽  
Hydrogen Evolution ◽  
Single Atoms ◽  
Bifunctional Electrocatalysts ◽  
Hydrogen Evolution Reactions

Cobalt single atoms anchored on porphyrinic triazine frameworks exhibit high activity in ORR and HER.

Nitrogen and sulfur co-doped porous carbon derived from human hair as highly efficient metal-free electrocatalysts for hydrogen evolution reactions

2015 ◽  
Vol 3 (16) ◽  
pp. 8840-8846 ◽  
Author(s):  
Xiaojun Liu ◽  
Weijia Zhou ◽  
Linjing Yang ◽  
Ligui Li ◽  
Zhenyuan Zhang ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Porous Carbon ◽  
Human Hair ◽  
Metal Free ◽  
Highly Efficient ◽  
Hydrogen Evolution Reactions ◽  
Co Doped

N and S co-doped porous carbon derived from human hair exhibited high activity as stable metal-free electrocatalysts for HER, OER and ORR.

scholarly journals The Effects of CeO2 Nanorods and CeO2 Nanoflakes on Ni–S Alloys in Hydrogen Evolution Reactions in Alkaline Solutions

Catalysts ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 197 ◽  
Author(s):  
Meiqin Zhao ◽  
Yao Li ◽  
Haifeng Dong ◽  
Lixin Wang ◽  
Zhouhao Chen ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Alkaline Solutions ◽  
Hydrogen Evolution Reactions

Non-precious cobalt phthalocyanine-embedded iron ore electrocatalysts for hydrogen evolution reactions

2021 ◽  
Author(s):  
Keshavananda Prabhu CP ◽  
Shambhulinga Aralekallu ◽  
Veeresh A. Sajjan ◽  
Manjunatha Palanna ◽  
Sharath Kumar ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Energy Production ◽  
Iron Ore ◽  
Clean Energy ◽  
Cobalt Phthalocyanine ◽  
Hydrogen Evolution Reactions

Efficient water splitting reactions lead to sustainable hydrogen production, which is the fuel for fuel cell devices for clean energy production.

Ru single atoms and nanoclusters on highly porous N–doped carbon as hydrogen evolution catalyst in alkaline solutions with ultrahigh mass activity and turnover frequency

2021 ◽  
Author(s):  
Yijun Li ◽  
Huijing Liu ◽  
Bing Li ◽  
Zhenzhen Yang ◽  
Zhenguo Guo ◽  
...  
Keyword(s):  
Energy Source ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Active Sites ◽  
Sustainable Energy ◽  
Alkaline Solutions ◽  
Turnover Frequency ◽  
Single Atoms ◽  
Mass Activity ◽  
Highly Porous

Electrocatalytic water splitting is one of the most desirable ways to provide hydrogen which is a clean and sustainable energy source. Improving the formation and the exposure of active sites...

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