Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Composition-Dependent Functionality of Copper Vanadate Photoanodes

Journal Article · · ACS Applied Materials and Interfaces
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Technische Univ. Munchen, Garching (Germany)
+ Show Author Affiliations

To understand functional roles of constituent elements in ternary metal oxide photoanodes, essential photoelectrochemical (PEC) properties are systematically analyzed on a series of copper vanadate compounds with different Cu:V elemental ratios. Here, homogeneous and highly continuous thin films of β-Cu2V2O7, γ-Cu3V2O8, Cu11V6O26, and Cu5V2O10 are grown via reactive co-sputtering and their performance characteristics for the light-driven oxygen evolution reaction are evaluated. All four compounds have similar bandgaps in the range of 1.83-2.03 eV, though Cu-rich phases exhibit stronger optical absorption and higher charge separation efficiencies. Transient photocurrent analysis reveals a reduction of surface catalytic activity with increasing Cu:V elemental ratio due to competitive charge recombination at Cu-related surface states. This comprehensive analysis of PEC functionalities - including photon absorption, carrier separation, and heterogeneous charge transfer - informs strategies for improving PEC activity in the copper vanadate materials system and reveals insights that may aid discovery, design, and engineering of new photoelectrode materials.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1506303
Journal Information:
ACS Applied Materials and Interfaces, Vol. 10, Issue 13; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 60 works
Citation information provided by
Web of Science

References (33)

Semiconducting materials for photoelectrochemical energy conversion journal January 2016
Solar fuels photoanode materials discovery by integrating high-throughput theory and experiment journal March 2017
Discovery of Manganese-Based Solar Fuel Photoanodes via Integration of Electronic Structure Calculations, Pourbaix Stability Modeling, and High-Throughput Experiments journal September 2017
Heterogeneous photocatalyst materials for water splitting journal January 2009
Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting journal January 2014
Single-crystalline, wormlike hematite photoanodes for efficient solar water splitting journal September 2013
Nanoporous BiVO4 Photoanodes with Dual-Layer Oxygen Evolution Catalysts for Solar Water Splitting journal February 2014
Advancing the Chemistry of CuWO 4 for Photoelectrochemical Water Oxidation journal May 2016
A facile spray pyrolysis method to prepare Ti-doped ZnFe 2 O 4 for boosting photoelectrochemical water splitting journal January 2017
Discovery and Characterization of a Pourbaix-Stable, 1.8 eV Direct Gap Bismuth Manganate Photoanode journal November 2017
Transition metal oxide alloys as potential solar energy conversion materials journal January 2013
Evaluating spinel ferrites MFe 2 O 4 (M = Cu, Mg, Zn) as photoanodes for solar water oxidation: prospects and limitations journal January 2018
All First Row Transition Metal Oxide Photoanode for Water Splitting Based on Cu 3 V 2 O 8 journal January 2015
Synthesis and Characterization of CuV 2 O 6 and Cu 2 V 2 O 7 : Two Photoanode Candidates for Photoelectrochemical Water Oxidation journal November 2015
High Throughput Discovery of Solar Fuels Photoanodes in the CuO-V 2 O 5 System journal August 2015
Investigation of Pristine and (Mo, W)-Doped Cu 11 V 6 O 26 for Use as Photoanodes for Solar Water Splitting journal November 2017
Probing the photoelectrochemical properties of hematite (α-Fe 2 O 3 ) electrodes using hydrogen peroxide as a hole scavenger journal January 2011
Quantification of the loss mechanisms in emerging water splitting photoanodes through empirical extraction of the spatial charge collection efficiency journal January 2018
Metal Oxide Photoelectrodes for Solar Fuel Production, Surface Traps, and Catalysis journal April 2013
Energetics and kinetics of light-driven oxygen evolution at semiconductor electrodes: the example of hematite journal November 2012
Water Oxidation at Hematite Photoelectrodes: The Role of Surface States journal February 2012
Rate Law Analysis of Water Oxidation on a Hematite Surface journal May 2015
Rate Law Analysis of Water Oxidation and Hole Scavenging on a BiVO 4 Photoanode journal August 2016
Electronic Structure, Optoelectronic Properties, and Photoelectrochemical Characteristics of γ-Cu 3 V 2 O 8 Thin Films journal March 2017
Semiconducting transition metal oxides journal June 2015
Primary Intermediates of Oxygen Photoevolution Reaction on TiO 2 (Rutile) Particles, Revealed by in Situ FTIR Absorption and Photoluminescence Measurements journal February 2004
Determination of photoelectrochemical water oxidation intermediates on haematite electrode surfaces using operando infrared spectroscopy journal July 2016
The Transient Photocurrent and Photovoltage Behavior of a Hematite Photoanode under Working Conditions and the Influence of Surface Treatments journal December 2012
Kinetics of oxygen evolution at α-Fe2O3 photoanodes: a study by photoelectrochemical impedance spectroscopy journal January 2011
Kinetics of light-driven oxygen evolution at α-Fe 2 O 3 electrodes journal January 2012
Mott insulators: An early selection criterion for materials for photoelectrochemical H 2 production journal September 2011
Electronic Structure of Monoclinic BiVO 4 journal September 2014
Indirect Bandgap and Optical Properties of Monoclinic Bismuth Vanadate journal January 2015

Cited By (5)

Trapped Photons Induced Ultrahigh External Quantum Efficiency and Photoresponsivity in Hybrid Graphene/Metal-Organic Framework Broadband Wearable Photodetectors journal October 2018
Assembly of β-Cu 2 V 2 O 7 /WO 3 heterostructured nanocomposites and the impact of their composition on structure and photoelectrochemical properties journal January 2018
Practical challenges in the development of photoelectrochemical solar fuels production journal January 2020
Visible Light Driven Photoanodes for Water Oxidation Based on Novel r-GO/β-Cu2V2O7/TiO2 Nanorods Composites journal July 2018
Visible Light Driven Photoanodes for Water Oxidation Based on Novel r-GO/β-Cu2V2O7/TiO2 Nanorods Composites journal July 2018

Similar Records

Related Subjects

36 MATERIALS SCIENCE
copper vanadate
photoanode
photoelectrochemistry
surface states
transient photocurrent analysis
water oxidation