Sandwiched NiO/β‐Mo 2 C/RGO as Improved Electrocatalyst for Hydrogen Evolution Reaction: Solvothermal‐Assisted Self‐Assembly and Catalytic Mechanism

2019 ◽  
Vol 6 (24) ◽  
pp. 5958-5966 ◽  
Author(s):  
Jiaqi Ni ◽  
Zhuhua Ruan ◽  
Shufang Zhu ◽  
Xianwen Kan ◽  
Lilin Lu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Catalytic Mechanism

3D self-assembly of ultrafine molybdenum carbide confined in N-doped carbon nanosheets for efficient hydrogen production

Nanoscale ◽  
2017 ◽  
Vol 9 (41) ◽  
pp. 15895-15900 ◽  
Author(s):  
Haiqing Wang ◽  
Xiaobin Xu ◽  
Bing Ni ◽  
Haoyi Li ◽  
Wei Bian ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Molybdenum Carbide ◽  
Carbon Nanosheets ◽  
Electrocatalytic Performance ◽  
Hierarchical Architectures

3D hierarchical architectures assembled from ultrafine MoC nanoparticles (0D) confined in N-doped conductive carbon nanosheets (2D) exhibit remarkable electrocatalytic performance and stability for the hydrogen evolution reaction (HER).

Self‐assembly Mesoporous FeP Film with High Porosity for Efficient Hydrogen Evolution Reaction

ChemCatChem ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2589-2594
Author(s):  
Cong Zhang ◽  
Maosheng S. Xia ◽  
Zhipeng P. Liu ◽  
Guoqing Q. Huang ◽  
Shisheng S. Yuan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
High Porosity

scholarly journals Controlling Photocatalytic Activity by Self‐Assembly – Tuning Perylene Bisimide Photocatalysts for the Hydrogen Evolution Reaction

2020 ◽  
Vol 10 (46) ◽  
pp. 2002469
Author(s):  
Daniel McDowall ◽  
Benjamin J. Greeves ◽  
Rob Clowes ◽  
Kate McAulay ◽  
Ana M. Fuentes‐Caparrós ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Perylene Bisimide

MoS2 in-situ growth on melamine foam for hydrogen evolution

2019 ◽  
Vol 12 (04) ◽  
pp. 1950044 ◽  
Author(s):  
Wen Li ◽  
Xiaopeng Qi ◽  
Hui Yang ◽  
Honghui Jiang ◽  
Tongxiang Liang
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Catalytic Mechanism ◽  
Hydrogen Generation ◽  
Carbon Matrix ◽  
In Situ Growth ◽  
Stacking Pattern ◽  
Ideal Framework ◽  
Melamine Foam

Carbonized melamine foam (CM) was used as an ideal framework for the in-situ growth of MoS2 by hydrothermal method. And its hydrogen evolution reaction (HER) and the catalytic mechanism were explored. By regulating the concentration of the precursor, the stacking pattern of MoS2 lamella on CM was optimized. And the results show that the sample with a precursor concentration of [Formula: see text][Formula: see text]M possesses the smallest overpotential (218[Formula: see text]mV @ 10[Formula: see text]mA[Formula: see text]cm[Formula: see text]) and its vertical arrayed nanosheets encased on the surface of carbon matrix provide more sites for the absorption of H[Formula: see text] in the electrolyte which accounts for the promotion of hydrogen generation.

Self-Assembly of a Rh(I) Complex on Au(111) Surfaces and Its Electrocatalytic Activity toward the Hydrogen Evolution Reaction

Langmuir ◽  
2007 ◽  
Vol 23 (12) ◽  
pp. 6819-6826 ◽  
Author(s):  
Xiao-Shun Zhou ◽  
Zhen-Rong Dong ◽  
Hai-Ming Zhang ◽  
Jia-Wei Yan ◽  
Jing-Xing Gao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Electrocatalytic Activity

scholarly journals Highly-dispersed ruthenium precursors via a self-assembly-assisted synthesis of uniform ruthenium nanoparticles for superior hydrogen evolution reaction

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14313-14316
Author(s):  
Xingyan Liu ◽  
Guangmei Jiang ◽  
Yuwei Tan ◽  
Shuang Luo ◽  
Mengmeng Xu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Ruthenium Nanoparticles ◽  
Highly Dispersed

Highly dispersed ruthenium precursors via a supramolecular self-assembly assisted synthesis of uniform ruthenium nanoparticles with excellent HER performance.

Controlling Activity by Self-Assembly – Tuning Perylene Bisimide Photocatalysts for the Hydrogen Evolution Reaction

2020 ◽  
Author(s):  
Daniel McDowall ◽  
Ben Greeves ◽  
Kate McAulay ◽  
Ana Fuentes-Caparros ◽  
Lisa Thomson ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Local Environment ◽  
Perylene Bisimide ◽  
Hole Scavenger ◽  
Self Assembled ◽  
Set Up ◽  
Perylene Bisimides

Amino acid functionalised perylene bisimides (PBIs) form self-assembled structures in solution, the nature of which depends on the local environment. Using a high throughput photocatalysis set-up, we have studied five PBIs for the hydrogen evolution reaction (HER) under a range of conditions (pH and hole scavenger concentration) across 350 experiments to explore the relationship between supramolecular structure and photocatalytic activity. Using small angle X-ray scattering (SAXS), we show that photocatalytic activity is determined by the nature of the self-assembled aggregate that is formed with a correlation between the presence of charged flexible cylindrical aggregates and high levels of H2. Our work highlights the complexity of designing supramolecular photocatalysts, and also the power of tuning activity by the type of aggregate that is formed.

scholarly journals Direct Self-Assembly of Hierarchically Grown Rhodium Thin Films for Electrocatalytic Hydrogen Evolution Reaction

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 338
Author(s):  
Muhammad Ali Ehsan ◽  
Alaaldin Adam ◽  
Abdul Rehman ◽  
Mohammad Qamar
Keyword(s):  
Thin Films ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Nickel Foam ◽  
Chemical Vapor ◽  
Catalytic Performance ◽  
Structural Features ◽  
Growth Time ◽  
Vapor Deposition Technique

Thin films of metallic rhodium (Rh) are developed on two different supports, nickel foam (NF) and titanium foil (Ti), and evaluated for electrochemical hydrogen evolution reaction (HER). The electrodes are prepared by aerosol-assisted chemical vapor deposition technique using a Rh diethyldithiocarabamte precursor for three distinct time periods of 40, 80, and 120 min at 500 °C. The film consists of phase pure metallic Rh with hierarchical flower-like morphology. The structural features of such nanostructures can be modulated by adjusting the growth time. The HER catalytic performance data for the optimized films (i.e., with the deposition time of 80 min) suggest that the Rh deposited on Ti foil (Rh/Ti) catalyze the reaction substantially faster than Rh deposited on Ni foam (Rh/NF). To produce current density of 100 mA cm−2, the Rh/NF needed over potential of 263 mV, while the Rh/Ti electrode required only 175 mV. In spite of lower electrical conductivity, caused by the bare Ti foil, the Rh/Ti electrode exhibits superior HER performance. The Tafel slopes of Rh/NF and Rh/Ti electrodes are determined to be 52 and 42 mV dec−1, while the turnover frequencies are estimated to be 1.1 and 37.3 s−1 at over potential of 260 mV.

Controlling Activity by Self-Assembly – Tuning Perylene Bisimide Photocatalysts for the Hydrogen Evolution Reaction

2020 ◽  
Author(s):  
Daniel McDowall ◽  
Ben Greeves ◽  
Kate McAulay ◽  
Ana Fuentes-Caparros ◽  
Lisa Thomson ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Self Assembly ◽  
Local Environment ◽  
Perylene Bisimide ◽  
Hole Scavenger ◽  
Self Assembled ◽  
Set Up ◽  
Perylene Bisimides

Amino acid functionalised perylene bisimides (PBIs) form self-assembled structures in solution, the nature of which depends on the local environment. Using a high throughput photocatalysis set-up, we have studied five PBIs for the hydrogen evolution reaction (HER) under a range of conditions (pH and hole scavenger concentration) across 350 experiments to explore the relationship between supramolecular structure and photocatalytic activity. Using small angle X-ray scattering (SAXS), we show that photocatalytic activity is determined by the nature of the self-assembled aggregate that is formed with a correlation between the presence of charged flexible cylindrical aggregates and high levels of H2. Our work highlights the complexity of designing supramolecular photocatalysts, and also the power of tuning activity by the type of aggregate that is formed.

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