Highly conductive titania supported iridium oxide nanoparticles with low overall iridium density as OER catalyst for large-scale PEM electrolysis

Böhm, Daniel; Beetz, Michael; Gebauer, Christian; Bernt, Maximilian; Schröter, Jonas; Kornherr, Matthias; Zoller, Florian; Bein, Thomas; Fattakhova‐Rohlfing, Dina

doi:10.1016/j.apmt.2021.101134

Cited by 38 publications

(55 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another promising class of supports for OER is based on titanium oxide. [ 79 , 125 , 156 , 157 , 158 , 159 , 160 , 161 ] Indeed, TiO 2 is known to be stable under OER conditions. However, it is a n‐type semiconductor and therefore not sufficiently electronically conductive for practical, high‐current electrocatalytic applications.…”

Section: Proposed Supports For Ir Nanoparticlesmentioning

confidence: 99%

Supported Iridium‐based Oxygen Evolution Reaction Electrocatalysts ‐ Recent Developments

et al. 2022

View full text Add to dashboard Cite

The commercialization of acidic proton exchange membrane water electrolyzers (PEMWE) is heavily hindered by the price and scarcity of oxygen evolution reaction (OER) catalyst, i. e. iridium and its oxides. One of the solutions to enhance the utilization of this precious metal is to use a support to distribute well dispersed Ir nanoparticles. In addition, adequately chosen support can also impact the activity and stability of the catalyst. However, not many materials can sustain the oxidative and acidic conditions of OER in PEMWE. Hereby, we critically and extensively review the different materials proposed as possible supports for OER in acidic media and the effect they have on iridium performances.

show abstract

Section: Proposed Supports For Ir Nanoparticlesmentioning

confidence: 99%

Supported Iridium‐based Oxygen Evolution Reaction Electrocatalysts ‐ Recent Developments

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Titanium suboxide and antimony oxide show promise. Nanostructured thin film electrodes (NSTF) stand out 285‐290 …”

Section: Sun Heat and Electricity For Water Splitting‐based Hydrogen ...mentioning

confidence: 99%

“…Nanostructured thin film electrodes (NSTF) stand out. [285][286][287][288][289][290] The main advances throughout the history of alkaline electrolysis and PEM have been synthesized in the scheme of Figure 13.…”

Section: Solid Polymer Electrolysis (Spe) or Proton Exchange Membrane...mentioning

confidence: 99%

Sun, heat and electricity. A comprehensive study of non‐pollutant alternatives to produce green hydrogen

Mancera

Segura

Andújar

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary Water‐based hydrogen production is currently an attractive research field, as it provides a greener method to produce hydrogen than existing alternatives. Green hydrogen is expected to progressively replace fossil fuels, which are highly harmful environmentally. This paper presents a critical analysis over time of the main water splitting technologies currently in use for sustainable hydrogen production. As a result of the critical analysis, all the studied techniques have been ordered chronologically in the way that it is possible to understand how new materials have driven to new techniques, more efficient and less expensive. This allows having a complete vision of these technologies. A high level of maturity has been reached in electrolysis, while other techniques still have a long way to go, although many improvements and relevant advancements have been made over the years. The paper offers a global and comparative vision of each technology. From this, it is possible to identify the different paths where efforts are needed to make water‐based hydrogen production a mature, stable and efficient technology.

show abstract

“…It is noteworthy that in determining catalyst performance, the interaction between metal and support plays an essential role [201,202]. The most investigated supports in the literature to immobilize nanoparticles are zeolites [203,204], metal oxides [205,206] silica spheres [207,208] and alumina [209,210]; nanomaterials have also been largely immobilized in polymeric materials, adding value to waste that is normally dumped into the environment, causing problems [199,211,212]. Therefore, encouraging the choice of support based on polymeric materials is a topic of great importance.…”

Section: Problems Of Use In Suspensionmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

View full text Add to dashboard Cite

Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

show abstract

Highly conductive titania supported iridium oxide nanoparticles with low overall iridium density as OER catalyst for large-scale PEM electrolysis

Cited by 38 publications

References 85 publications

Supported Iridium‐based Oxygen Evolution Reaction Electrocatalysts ‐ Recent Developments

Supported Iridium‐based Oxygen Evolution Reaction Electrocatalysts ‐ Recent Developments

Sun, heat and electricity. A comprehensive study of non‐pollutant alternatives to produce green hydrogen

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Contact Info

Product

Resources

About