scispace - formally typeset
Journal ArticleDOI

Accelerating materials development for photoelectrochemical hydrogen production: Standards for methods, definitions, and reporting protocols

Reads0
Chats0
TLDR
In this paper, a flow chart with standard procedures for PEC characterization techniques for planar photoelectrode materials (i.e., not suspensions of particles) with a focus on single band gap absorbers is presented.
Abstract
Photoelectrochemical (PEC) water splitting for hydrogen production is a promising technology that uses sunlight and water to produce renewable hydrogen with oxygen as a by-product. In the expanding field of PEC hydrogen production, the use of standardized screening methods and reporting has emerged as a necessity. This article is intended to provide guidance on key practices in characterization of PEC materials and proper reporting of efficiencies. Presented here are the definitions of various efficiency values that pertain to PEC, with an emphasis on the importance of solar-to-hydrogen efficiency, as well as a flow chart with standard procedures for PEC characterization techniques for planar photoelectrode materials (i.e., not suspensions of particles) with a focus on single band gap absorbers. These guidelines serve as a foundation and prelude to a much more complete and in-depth discussion of PEC techniques and procedures presented elsewhere.

read more

Citations
More filters
Journal ArticleDOI

Crystal orientation-dependent etching and trapping in thermally-oxidised Cu2O photocathodes for water splitting

TL;DR: Ammonia solution etching was carried out on thermally-oxidised cuprous oxide (TO-Cu2O) in photocathode devices for water splitting as discussed by the authors .
Journal ArticleDOI

Highly Efficient Photoelectrochemical Water Splitting Using GaN-Nanowire Photoanode with Tungsten Sulfides.

TL;DR: In this article, the authors achieved high performance photoelectrochemical water splitting using GaN nanowires (NWs) coated with tungsten sulfide (WxS1-x) as a photoanode.
Journal ArticleDOI

Interface engineering in the BNNS@Ti3C2 intercalation structure for enhanced electrocatalytic hydrogen evolution

TL;DR: In this paper, a novel BNNS@Ti3C2 intercalation electrocatalyst was prepared via a controllable synthesis strategy, where the rich active sites of Ti3C 2 were better protected as well as were able to serve as a bridge to connect the different layers.
Journal ArticleDOI

Ag2Se to KAg3Se2: Suppressing Order-Disorder Transitions via Reduced Dimensionality.

TL;DR: The results imply that dimensional reduction may be used as a design strategy to frustrate order-disorder phenomena while retaining desirable electronic and thermal properties.
Journal ArticleDOI

Realization of ultrathin red 2D carbon nitride sheets to significantly boost the photoelectrochemical water splitting performance of TiO2 photoanodes

TL;DR: In this article, a 2D widebandgap material of 2D carbon nitride sheets (CNs) was used to achieve a strong band-to-band visible-light absorption band.
References
More filters
Journal ArticleDOI

Electrochemical Photolysis of Water at a Semiconductor Electrode

TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
Journal ArticleDOI

Optical Properties and Electronic Structure of Amorphous Germanium

TL;DR: In this article, the optical constants of amorphous Ge were determined for the photon energies from 0.08 to 1.6 eV, and the absorption is due to k-conserving transitions of holes between the valence bands as in p-type crystals.
Journal ArticleDOI

Powering the planet: Chemical challenges in solar energy utilization

TL;DR: Solar energy is by far the largest exploitable resource, providing more energy in 1 hour to the earth than all of the energy consumed by humans in an entire year, and if solar energy is to be a major primary energy source, it must be stored and dispatched on demand to the end user.
Journal ArticleDOI

Conduction in non-crystalline systems V. Conductivity, optical absorption and photoconductivity in amorphous semiconductors

TL;DR: In this article, the experimental evidence concerning the density of states in amorphous semiconductors and the ranges of energy in which states are localized is reviewed; this includes d.c and a.c. conductivity, drift mobility and optical absorption.
Journal ArticleDOI

New contributions to the optics of intensely light-scattering materials.

TL;DR: In this paper, the Gurevic and Judd formulas were derived from the Kubelka-Munk differential equations, and they are exact under the same conditions as in this paper, that is, when the material is perfectly dull and when the light, is perfectly diffused or if it is parallel and hits the specimen under an angle of 60° from normal.
Related Papers (5)