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      Controlling the Size and Pattern Pitch of Ni(OH) 2 Nanoclusters Using Dip-Pen Nanolithography to Improve Water Oxidation

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          Abstract

          We use dip-pen nanolithography to accurately pattern Ni(OH) 2 nanoclusters on a metachemical surface with an exceptionally large surface area. The distance between the nanoclusters can be manipulated to control the oxygen-evolution reaction current and overpotential, thereby improving the efficiency of the water-splitting process while using minute amounts of the catalyst.

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          Innovative Strategies for Electrocatalytic Water Splitting

          Bo You, Yujie Sun (2018)
          Article 0 comments Cited 384 times – based on 0 reviews     Review now
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            Earth-Abundant Heterogeneous Water Oxidation Catalysts

            Bryan M Hunter, Harry B Gray, Astrid Müller (2016)
            Water oxidation is a key chemical transformation for the conversion of solar energy into chemical fuels. Our review focuses on recent work on robust earth-abundant heterogeneous catalysts for the oxygen-evolving reaction (OER). We point out that improvements in the performance of OER catalysts will depend critically on the success of work aimed at understanding reaction barriers based on atomic-level mechanisms. We highlight the challenge of obtaining acid-stable OER catalysts, with proposals for elements that could be employed to reach this goal. We suggest that future advances in solar fuels science will be accelerated by the development of new methods for materials synthesis and characterization, along with in-depth investigations of redox mechanisms at catalytic surfaces.
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              Self‐Supported Transition‐Metal‐Based Electrocatalysts for Hydrogen and Oxygen Evolution

              Hongming Sun, Zhenhua Yan, Fangming Liu … (2019)
              Electrochemical water splitting is a promising technology for sustainable conversion, storage, and transport of hydrogen energy. Searching for earth-abundant hydrogen/oxygen evolution reaction (HER/OER) electrocatalysts with high activity and durability to replace noble-metal-based catalysts plays paramount importance in the scalable application of water electrolysis. A freestanding electrode architecture is highly attractive as compared to the conventional coated powdery form because of enhanced kinetics and stability. Herein, recent progress in developing transition-metal-based HER/OER electrocatalytic materials is reviewed with selected examples of chalcogenides, phosphides, carbides, nitrides, alloys, phosphates, oxides, hydroxides, and oxyhydroxides. Focusing on self-supported electrodes, the latest advances in their structural design, controllable synthesis, mechanistic understanding, and strategies for performance enhancement are presented. Remaining challenges and future perspectives for the further development of self-supported electrocatalysts are also discussed.
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                Author and article information

                Contributors
                Veikko Linko: Role: Academic Editor
                Journal
                Journal ID (nlm-ta): Molecules
                Journal ID (iso-abbrev): Molecules
                Journal ID (publisher-id): molecules
                Title: Molecules
                Publisher: MDPI
                ISSN (Electronic): 1420-3049
                Publication date (Electronic): 26 June 2020
                Publication date Collection: June 2020
                Volume: 25
                Issue: 12
                Electronic Location Identifier: 2937
                Affiliations
                [1 ]Department of Chemical Engineering, Shamoon College of Engineering, P.O. Box 950, Beer-Sheva 8410802, Israel; zoriksh@ 123456gmail.com
                [2 ]Nuclear Research Center, Negev, P.O. Box 9001, Beer-Sheva 8419001, Israel; drorshamir@ 123456gmail.com
                [3 ]Department of Electrical and Electronics Engineering, Shamoon College of Engineering, P.O. Box 950, Beer-Sheva 8410802, Israel; moshezo@ 123456ac.sce.ac.il
                Author notes
                [* ]Correspondence: arielab@ 123456sce.ac.il ; Tel.: +972-52-643-3773; Fax: +972-8-647-5636
                Author information
                https://orcid.org/0000-0003-0624-1772
                Article
                Publisher ID: molecules-25-02937
                DOI: 10.3390/molecules25122937
                PMC ID: 7356304
                PubMed ID: 32604746
                SO-VID: f7400e3d-9c38-4545-ae46-80b57f2725c8
                Copyright © © 2020 by the authors.
                License:

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                Date received : 01 June 2020
                Date accepted : 23 June 2020
                Categories
                Subject: Communication

                Keywords: alternative energy,dip-pen nanolithography,meta-chemical surface,ni(oh)2,water-splitting process
                Data availability:
                Keywords: alternative energy, dip-pen nanolithography, meta-chemical surface, ni(oh)2, water-splitting process

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