Results 41 to 50 of about 829,335 (326)

Coffee waste-derived porous carbon for hydrogen and oxygen evolution reaction

Chemical Physics Impact, 2023
Porous carbon was synthesized from coffee waste for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The coffee waste was carbonized at 600 °C for 2 hrs and activated at 500, 600, and 700 °C, respectively. The activated coffee waste
Keshab Pandey, Hae Kyung Jeong
doaj   +1 more source

Directed Growth of Hydrogen Lines on Graphene: High Throughput Simulations Powered by Evolutionary Algorithm [PDF]

, 2018
We set up an evolutionary algorithm combined with density functional tight-binding (DFTB) calculations to investigate hydrogen adsorption on flat graphene and graphene monolayers curved over substrate steps.
Brandbyge, M., Falkenberg, J. T., Ozbal, G., Senger, R. T., Sevincli, H.   +4 more
core   +2 more sources

Electrochemical deprotonation of phosphate on stainless steel [PDF]

, 2004
Voltammetric experiments performed in phosphate buffer at constant pH 8.0 on platinum and stainless steel revealed clear reduction currents, which were correlated to the concentrations of phosphate.
A. Bergel, Bard, Bryant, Bryant, Ciszkowska, Cord-Ruwisch, Costello, Da Silva, Da Silva, Daniele, Daumas, Devaux, Hubbard, Khan, Lasia, O’Neil, Quian, Quian, R. Basséguy, S. Da Silva, Salvarezza, Salvarezza, Takehara, Van Ommen Kloeke, Wanklyn   +24 more
core   +1 more source

Ultrafast self-heating synthesis of robust heterogeneous nanocarbides for high current density hydrogen evolution reaction

Nature Communications, 2022
Designing cost-effective and high-efficiency catalysts to electrolyze water is an effective way of producing hydrogen. Practical applications require highly active and stable hydrogen evolution reaction catalysts working at high current densities (≥1000 ...
Chenyu Li, Zhijie Wang, Mingda Liu, Enze Wang, Bolun Wang, Longlong Xu, K. Jiang, S. Fan, Yinghui Sun, Jia Li, Kai Liu   +10 more
semanticscholar   +1 more source

Electrolytic preparation and characterization of Ni-Fe-Mo alloys: Cathode materials for alkaline water electrolysis [PDF]

, 1999
Ni-Fe-Mo alloys have been electroplated by using suitable bath solution and plating conditions. SEM and XRD analysis showed that the deposited alloys are partially amorphous. Polarization studies indicated a dependence of the hydrogen evolution mechanism
Mayanna, S.M, Ramesh, L., Sheshadri, B.S.   +2 more
core   +1 more source

Electrocatalysts for the hydrogen evolution reaction in alkaline and neutral media. A comparative review

, 2021
With interest in renewable energy sources and in the decarbonisation of industry rapidly accelerating, alkaline water electrolysis can now be regarded as a key technology enabling efficient energy conversion and storage.
Martin Ďurovič, J. Hnát, K. Bouzek
semanticscholar   +1 more source

2D Transition Metal Dichalcogenides‐Based Electrocatalysts for Hydrogen Evolution Reaction

Advanced Functional Materials, 2022
Hydrogen is an efficient, clean, and economical energy source, owing to its huge energy density. Electrochemical water splitting is a potential candidate for inexpensive and eco‐friendly hydrogen production.
A. Mondal, A. Vomiero
semanticscholar   +1 more source

Rapid complete reconfiguration induced actual active species for industrial hydrogen evolution reaction

Nature Communications, 2022
Rational regulation of electrochemical reconfiguration and exploration of activity origin are important foundations for realizing the optimization of electrocatalyst activity, but rather challenging.
Luqi Wang, Yi-Ning Hao, Li-Ming Deng, Feng Hu, Sheng Zhao, Linlin Li, Shengjie Peng   +6 more
semanticscholar   +1 more source

Carbon-based electrocatalysts for hydrogen evolution reaction

Energy Conversion and Management: X
In the pursuit of clean and sustainable hydrogen energy production, water splitting has emerged as a promising method. However, the cost and scarcity of Pt-group metals as effective electrocatalysts hydrogen evolution reaction (HER) poses challenges for ...
Khalid Ahmed, Summaiya Hameed, Kumar Patchigolla, Nashwan Dawood, Zafar Khan Ghouri   +4 more
doaj   +1 more source

Ruthenium atomically dispersed in carbon outperforms platinum toward hydrogen evolution in alkaline media. [PDF]

, 2019
Hydrogen evolution reaction is an important process in electrochemical energy technologies. Herein, ruthenium and nitrogen codoped carbon nanowires are prepared as effective hydrogen evolution catalysts.
Chen, Shaowei, Finfrock, Y Zou, Gao, Peng, Guo, Lin, Li, Ning, Lu, Bingzhang, Lu, Jia En, Morris, David, Peng, Yi, Ping, Yuan, Smart, Tyler J, Wang, Nan, Wu, Feng, Zhang, Peng   +13 more
core   +3 more sources