Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.5
2.7
Journals
Applied Sciences
Special Issues
Nano Hydrogen Production and Storage
share announcement

Nano Hydrogen Production and Storage

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (31 July 2020) | Viewed by 18627

Special Issue Editors

Prof. Dr. Fan-Gang Tseng

E-Mail Website
Guest Editor
Distinguished Professor, Department of Engineering and System Science, National Tsing Hua University (NTHU), Affiliated Research Fellow, Academia Sinica, Hsinchu, Taiwan
Interests: organ on a chip; microfluidic systems; biosensors; CTCs/CTM diagnosis; single cell analysis
Special Issues, Collections and Topics in MDPI journals
Assoc. Prof. Dr. Tsan-Yao Chen

E-Mail Website
Guest Editor
Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
Interests: nanoscaled physiochemistry; surface science; SR spectroscopy and scattering in nanomaterials characterization; X-ray absorption spectroscopy; nanoparticles in energy applications; Cl2 based cyclic etch and deposition technique on epitaxy growth; defect engineering and characterization in hot implantation ultra-shallow junction (USJ) thin film
Assist. Prof. Dr. Hsin-Yi Tiffany Chen

E-Mail Website
Guest Editor
Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
Interests: first principle calculations of energy materials; catalysis; 2D materials; metal/oxide interface

Special Issue Information

Dear Colleagues,

Hydrogen production and storage has attracted much attention in both academia and industry recently. Hydrogen is one of the most important molecules in energy industries. Among existing chemicals, hydrogen contains the simplest chemical form but the highest specific mass energy density. Hydrogen energy technologies perform direct electricity conversion efficiency up to 85% and ultra-high power density up to MW to the optimist case. Upon energy conversion (either through interactions with oxygen in combustion or through evolution with OH- in electrochemical reactions), hydrogen molecules will turn into water molecules, thereby resulting in zero pollutant emissions. By collaborating with renewable energies (such as solar and wind powers), hydrogen is a potential candidate to meet the criteria of the green energy cycle and achieve substantial human civilization.

Hydrogen energy involves several sectors, including technologies of production, purification, storage, and conversion (i.e., combustion or electrochemical evolution). Hydrogen production is considered as one of the keys to achieving a future hydrogen economy by developing viable and more cost- effective and enviromental friendly approaches. Hydrogen production could be achieved from renewable sources such as water, solar, wind, ocean, hydro, biomass, and nuclear energy or non-renewable sources such as fossil fuels via  electrical, thermal, biochemical, photonic, electro-thermal, photo-electric, and photo-biochemical methods. Producing hydrogen with the lowest enviromental and social impact and the lowest cost but with the highest efficiency is still challenging.

By considering the input energy mean, existing hydrogen storage technologies can be classified into physical and chemical methods. In physical methods, high pressure and low temperature environments in cylinders are needed for hydrogen storage. Feasibility and safety are major concerns that limit physical storage methods, particularly in the portable electronics and transportation sectors. Irreversibility and safety are major issues for chemical storage methods, considering that high-temperature conditions are usually needed for releasing hydrogen from storage mediates (i.e., dissociating carbonaceous compounds or metal hydrates).

This Special Issue aims to make substantial contributions to the development of hydrogen production and hydrogen  storage regarding user friendly status and high-performance hydrogen utilization technologies. Contents include but are not limite to hydrogen generation and storage, and utilization-related technologies in the synthesis of nanomaterials, device fabrications, system/technology integration, cataysis, and theoretical calculations.           

In summary, this Special Issue is an opportunity for the scientific community to present recent research regarding new methods and devices or systems for hydrogen generation, storage, and utilization applications as key aspects of a future hydrogen economy.

Prof. Dr. Fan-Gang Tseng
Assoc. Prof. Dr. Tsan-Yao Chen
Assist. Prof. Dr. Hsin-Yi Tiffany Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanocatalyst
  • Hydrogen storage
  • Nano-pore
  • Meso-pore
  • Spillover
  • Hydrogen energy
  • Hydrogen evolution
  • Hydrogen production
  • Renewables
  • Efficiency
  • Environmental impact
  • Energy conversion
  • Green energy.

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

14 pages, 2564 KiB  
Article
Mechanistic Studies of Hydrogen Evolution Reaction on Donor-Acceptor Conjugated Polymer Photocatalysts
by Yves Ira A. Reyes, Li-Yu Ting, Xin Tu, Hsin-Yi Tiffany Chen, Ho-Hsiu Chou and Carmine Coluccini
Appl. Sci. 2020, 10(20), 7017; https://0-doi-org.brum.beds.ac.uk/10.3390/app10207017 - 09 Oct 2020
Cited by 5 | Viewed by 3155
Abstract
The application of donor-acceptor (D-A) conjugated polymer catalysts for hydrogen evolution reaction (HER) has shown great promise because of the tunability of such catalysts to have desired properties. Herein, we synthesized two polymer catalysts: poly[4,4′-(9-(4-aminophenyl)-9H-carbazole-3,6-diamine-alt-5-oxido-5-phenylbenzo[b]phosphindole-3,7-diyl)dibenzaldehyde] (PCzPO) and poly[N1,N1 [...] Read more.
The application of donor-acceptor (D-A) conjugated polymer catalysts for hydrogen evolution reaction (HER) has shown great promise because of the tunability of such catalysts to have desired properties. Herein, we synthesized two polymer catalysts: poly[4,4′-(9-(4-aminophenyl)-9H-carbazole-3,6-diamine-alt-5-oxido-5-phenylbenzo[b]phosphindole-3,7-diyl)dibenzaldehyde] (PCzPO) and poly[N1,N1-bis(4-amino-2-fluorophenyl)-2-fluorobenzene-1,4-diamine-alt-5-oxido-5-phenylbenzo[b]phosphindole-3,7-diyl)dibenzaldehyde] (PNoFPO). The UV-vis absorption spectra showed that the less planar structure and the presence of electronegative fluorine atoms in the donor group of PNoFPO led to a higher optical gap compared to PCzPO, leading to almost five times faster HER rate using PCzPO compared to PNoFPO. However, density functional theory (DFT) calculations show that the frontier orbitals and the highest occupied molecular orbitals – lowest unoccupied molecular orbitals (HOMO-LUMO) gaps of PCzPO and PNoFPO D-A moiety models are very similar, such that, during light absorption, electrons move from donor to acceptor group where proton binding is preferred to happen thereafter. For both PCzPO and PNoFPO D-A moieties, H2 formation through an intramolecular reaction with a barrier of 0.6–0.7 eV, likely occurs at the acceptor group atoms where protons bind through electrostatic interaction. The intermolecular reaction has nearly zero activation energy but is expected to occur only when the repulsion is low between separate polymers chains. Finally, experimental and DFT results reveal the importance of extended configurations of D-A polymers on HER rate. Full article
(This article belongs to the Special Issue Nano Hydrogen Production and Storage)
►▼ Show Figures

Graphical abstract

11 pages, 3541 KiB  
Article
Atomic Pt-Clusters Decoration Triggers a High-Rate Performance on Ni@Pd Bimetallic Nanocatalyst for Hydrogen Evolution Reaction in Both Alkaline and Acidic Medium
by Dinesh Bhalothia, Sheng-Po Wang, Shuan Lin, Che Yan, Kuan-Wen Wang and Po-Chun Chen
Appl. Sci. 2020, 10(15), 5155; https://0-doi-org.brum.beds.ac.uk/10.3390/app10155155 - 27 Jul 2020
Cited by 8 | Viewed by 2622
Abstract
The development of inexpensive and highly robust nanocatalysts (NCs) to boost electrochemical hydrogen evolution reaction (HER) strengthens the implementation of several emerging sustainable-energy technologies. Herein, we proposed a novel nano-architecture consisting of a hierarchical structured Ni@Pd nanocatalyst with Pt-clusters decoration on the surface [...] Read more.
The development of inexpensive and highly robust nanocatalysts (NCs) to boost electrochemical hydrogen evolution reaction (HER) strengthens the implementation of several emerging sustainable-energy technologies. Herein, we proposed a novel nano-architecture consisting of a hierarchical structured Ni@Pd nanocatalyst with Pt-clusters decoration on the surface (denoted by Ni@Pd-Pt) for HER application in acidic (0.5 M H2SO4) and alkaline (0.1 M KOH) mediums. The Ni@Pd-Pt NC is fabricated on a carbon black support via a “self-aligned” heterogeneous nucleation-crystal growth mechanism with 2 wt.% Pt-content. As-prepared Ni@Pd-Pt NC outperforms the standard Pt/C (30 wt.% Pt) catalyst in HER and delivers high-rate catalytic performance with an ultra-low overpotential (11.5 mV) at the cathodic current density of 10 mA∙cm−2 in alkaline medium, which is 161.5 mV and 14.5 mV less compared to Ni@Pd (173 mV) and standard Pt/C (26 mV) catalysts, respectively. Moreover, Ni@Pd-Pt NC achieves an exactly similar Tafel slope (42 mV∙dec−1) to standard Pt/C, which is 114 mV∙dec−1 lesser when compared to Ni@Pd NC. Besides, Ni@Pd-Pt NC exhibits an overpotential value of 37 mV at the current density of 10 mA cm−2 in acidic medium, which is competitive to standard Pt/C catalyst. By utilizing physical characterizations and electrochemical analysis, we demonstrated that such an aggressive HER activity is dominated by the increased selectivity during HER due to the reduced competition between intermediate products on the non-homogeneous NC surface. This phenomenon can be rationalized by electron localization owing to the electronegative difference (χPt > χPd > χNi) and strong lattice mismatch at the Ni@Pd heterogeneous binary interfaces. We believe that the obtained results will significantly provide a facile design strategy to develop next-generation heterogenous NCs for HER and related green-energy applications Full article
(This article belongs to the Special Issue Nano Hydrogen Production and Storage)
►▼ Show Figures

Figure 1

12 pages, 2209 KiB  
Article
The Ethanol Oxidation Reaction Performance of Carbon-Supported PtRuRh Nanorods
by Tzu-Hsi Huang, Dinesh Bhalothia, Shuan Lin, Yu-Rewi Huang and Kuan-Wen Wang
Appl. Sci. 2020, 10(11), 3923; https://0-doi-org.brum.beds.ac.uk/10.3390/app10113923 - 05 Jun 2020
Cited by 5 | Viewed by 2579
Abstract
In this study, carbon-supported Pt-based catalysts, including PtRu, PtRh, and PtRuRh nanorods (NRs), were prepared by the formic acid reduction method for ethanol oxidation reaction (EOR) application. The aspect ratio of all experimental NRs is 4.6. The X-ray photoelectron spectroscopy and H2 [...] Read more.
In this study, carbon-supported Pt-based catalysts, including PtRu, PtRh, and PtRuRh nanorods (NRs), were prepared by the formic acid reduction method for ethanol oxidation reaction (EOR) application. The aspect ratio of all experimental NRs is 4.6. The X-ray photoelectron spectroscopy and H2-temperature-programmed reduction results confirm that the ternary PtRuRh has oxygen-containing species (OCS), including PtOx, RuOx and RhOx, on its surface and shows high EOR current density at 0.6 V. The corresponding physical structure results indicate that the surface OCS can enhance the adsorption of ethanol through bi-functional mechanism and thereby promote the EOR activity. On the other hand, the chronoamperometry (CA) results imply that the ternary PtRuRh has the highest mass activity, specific activity, and stability among all catalysts. The aforementioned pieces of evidence reveal that the presence of OCS facilitates the oxidation of adsorbed intermediates, such as CO or CHx, which prevents the Pt active sites from poisoning and thus simultaneously improves the current density and durability of PtRuRh NRs in EOR. Full article
(This article belongs to the Special Issue Nano Hydrogen Production and Storage)
►▼ Show Figures

Figure 1

9 pages, 3126 KiB  
Article
Basal-Plane Catalytic Activity of Layered Metallic Transition Metal Ditellurides for the Hydrogen Evolution Reaction
by Hagyeong Kwon, Dongyeon Bae, Hyeyoung Jun, Byungdo Ji, Dongyeun Won, Jun-Ho Lee, Young-Woo Son, Heejun Yang and Suyeon Cho
Appl. Sci. 2020, 10(9), 3087; https://0-doi-org.brum.beds.ac.uk/10.3390/app10093087 - 28 Apr 2020
Cited by 21 | Viewed by 3698
Abstract
We report the electrochemical hydrogen evolution reaction (HER) of two-dimensional metallic transition metal dichalcogenides (TMDs). TMTe2 (TM: Mo, W, and V) single crystals were synthesized and characterized by optical microscopy, X-ray diffraction, and electrochemical measurements. We found that TM [...] Read more.
We report the electrochemical hydrogen evolution reaction (HER) of two-dimensional metallic transition metal dichalcogenides (TMDs). TMTe2 (TM: Mo, W, and V) single crystals were synthesized and characterized by optical microscopy, X-ray diffraction, and electrochemical measurements. We found that TMTe2 acts as a HER-active catalyst due to the inherent catalytic activity of its basal planes. Among the three metallic TMTe2, VTe2 shows the best HER performance with an overpotential of 441 mV and a Tafel slope of 70 mV/dec. It is 668 mV and 137 mV/dec for MoTe2 and 692 mV and 169 mV/dec for WTe2. Even though VTe2 has the lowest values in the exchange current density, the active site density, and turn-over-frequency (TOF) among the three TMTe2, the lowest charge transfer resistance (RCT) of VTe2 seems to be critical to achieving the best HER performance. First-principles calculations revealed that the basal-plane-active HER performance of metallic TMDs can be further enhanced with some Te vacancies. Our study paves the way to further study of the inherent catalytic activity of metallic 2D materials for active hydrogen production. Full article
(This article belongs to the Special Issue Nano Hydrogen Production and Storage)
►▼ Show Figures

Figure 1

Review

Jump to: Research

19 pages, 5967 KiB  
Review
Recent Advancements and Future Prospects of Noble Metal-Based Heterogeneous Nanocatalysts for Oxygen Reduction and Hydrogen Evolution Reactions
by Dinesh Bhalothia, Lucky Krishnia, Shou-Shiun Yang, Che Yan, Wei-Hao Hsiung, Kuan-Wen Wang and Tsan-Yao Chen
Appl. Sci. 2020, 10(21), 7708; https://0-doi-org.brum.beds.ac.uk/10.3390/app10217708 - 30 Oct 2020
Cited by 36 | Viewed by 5280
Abstract
The oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) both are key electrochemical reactions for enabling next generation alternative-power supply technologies. Despite great merits, both of these reactions require robust electrocatalysts for lowering the overpotential and promoting their practical applications in energy [...] Read more.
The oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) both are key electrochemical reactions for enabling next generation alternative-power supply technologies. Despite great merits, both of these reactions require robust electrocatalysts for lowering the overpotential and promoting their practical applications in energy conversion and storage devices. Although, noble metal-based catalysts (especially Pt-based catalysts) are at the forefront in boosting the ORR and HER kinetics, high cost, limited availability, and poor stability in harsh redox conditions make them unfit for scalable use. To this end, various strategies including downsizing the catalyst size, reducing the noble metal, and increasing metal utilization have been adopted to appropriately balance the performance and economic issues. This mini-review presents an overview of the current state of the technological advancements in noble metal-based heterogeneous nanocatalysts (NCs) for both ORR and HER applications. More specifically, we focused on establishing the structure–performance correlation. Full article
(This article belongs to the Special Issue Nano Hydrogen Production and Storage)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop