Functionalized Graphene-Incorporated Cupric Oxide Charge-Transport Layer for Enhanced Photoelectrochemical Performance and Hydrogen Evolution

The production of hydrogen (H2) through photoelectrochemical water splitting (PEC-WS) using renewable energy sources, particularly solar light, has been considered a promising solution for global energy and environmental challenges. In the field of hydrogen-scarce regions, metal oxide semiconductors have been extensively researched as photocathodes. For UV-visible light-driven PEC-WS, cupric oxide (CuO) has emerged as a suitable photocathode. However, the stability of the photocathode (CuO) against photo-corrosion is crucial in developing CuO-based PEC cells. This study reports a stable and effective CuO and graphene-incorporated (Gra-COOH) CuO nanocomposite photocathode through a sol-gel solution-based technique via spin coating. Incorporating graphene into the CuO nanocomposite photocathode resulted in higher stability and an increase in photocurrent compared to bare CuO photocathode electrodes. Compared to cuprous oxide (Cu2O), the CuO photocathode was more identical and thermally stable during PEC-WS due to its high oxidation number. Additionally, the CuO:Gra-COOH nanocomposite photocathode exhibited a H2 evolution of approximately 9.3 µmol, indicating its potential as a stable and effective photocathode for PEC-WS. The enhanced electrical properties of the CuO:Gra-COOH nanocomposite exemplify its potential for use as a charge-transport layer.

[1]  J. Arbiol,et al.  Improvement of carbon dioxide electroreduction by crystal surface modification of ZIF-8. , 2023, Dalton transactions.

[2]  S. Ramakrishna,et al.  Three-dimensional AgNps@Mxene@PEDOT:PSS composite hybrid foam as a piezoresistive pressure sensor with ultra-broad working range , 2022, Journal of materials science.

[3]  R. Kandeeban,et al.  Non-precious metal-based integrated electrodes for overall alkaline water splitting , 2022, Journal of the Indian Chemical Society.

[4]  Ayyappadasan Ganesan,et al.  Electrocatalytic response of the modified ZnO-G electrodes towards the oxidation of serotonin with multi metallic corrosion protection , 2022, Journal of the Indian Chemical Society.

[5]  G. Dalapati,et al.  Photovoltaic/photo-electrocatalysis integration for green hydrogen: A review , 2022, Energy Conversion and Management.

[6]  G. Dalapati,et al.  Interfacial interaction of plasmonic nanoparticles (Ag, Au) decorated floweret TiO2 nanorod hybrids for enhanced visible light driven photocatalytic activity , 2021 .

[7]  Vu Thi Quyen,et al.  Copper doped titanium dioxide as a low-cost visible light photocatalyst for water splitting , 2021 .

[8]  Mohit Sharma,et al.  Carbon-doped titanium dioxide nanoparticles for visible light driven photocatalytic activity , 2021, Applied Surface Science.

[9]  G. Dalapati,et al.  Cu2O/CuO heterojunction catalysts through atmospheric pressure plasma induced defect passivation , 2020, Applied Surface Science.

[10]  Ashour M. Ahmed,et al.  Simple and Low-Cost Synthesis of Ba-Doped CuO Thin Films for Highly Efficient Solar Generation of Hydrogen , 2020 .

[11]  Charles E. Creissen,et al.  Solar‐Driven Electrochemical CO2 Reduction with Heterogeneous Catalysts , 2020, Advanced Energy Materials.

[12]  Chin Sheng Chua,et al.  Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production , 2020, Global challenges.

[13]  V. Thu,et al.  A high-efficiency photoelectrochemistry of Cu2O/TiO2 nanotubes based composite for hydrogen evolution under sunlight , 2019, Composites Part B: Engineering.

[14]  Daniel M. Kammen,et al.  Techno–ecological synergies of solar energy for global sustainability , 2019, Nature Sustainability.

[15]  Wael Z. Tawfik,et al.  Highly conversion efficiency of solar water splitting over p-Cu2O/ZnO photocatalyst grown on a metallic substrate , 2019, Journal of Catalysis.

[16]  Muhammad Naeem Anjum,et al.  The systemic effect of PEG-nGO-induced oxidative stress in vivo in a rodent model , 2019, Beilstein journal of nanotechnology.

[17]  M. Ganjali,et al.  Voltammetric Determination of Acetaminophen and Tryptophan Using a Graphite Screen Printed Electrode Modified with Functionalized Graphene Oxide Nanosheets Within a Fe3O4@SiO2 Nanocomposite , 2019, Iranian journal of pharmaceutical research : IJPR.

[18]  D. Rodrigue,et al.  Influence of graphene oxide and graphene nanosheet on the properties of polyvinylidene fluoride nanocomposites , 2018 .

[19]  G. Dalapati,et al.  Optimizing the thermal annealing temperature: technological route for tuning the photo-detecting property of p-CuO thin films grown by chemical bath deposition method , 2018, Journal of Materials Science: Materials in Electronics.

[20]  J. Iqbal,et al.  Solar light triggered catalytic performance of graphene-CuO nanocomposite for waste water treatment , 2017 .

[21]  Zhanfeng Zheng,et al.  Graphene-supported CoS2 particles: an efficient photocatalyst for selective hydrogenation of nitroaromatics in visible light , 2017 .

[22]  H. García,et al.  Oriented 2.0.0 Cu2O nanoplatelets supported on few-layers graphene as efficient visible light photocatalyst for overall water splitting , 2017 .

[23]  K. Parida,et al.  Cu@CuO promoted g-C3N4/MCM-41: an efficient photocatalyst with tunable valence transition for visible light induced hydrogen generation , 2016, RSC Advances.

[24]  Chin Sheng Chua,et al.  All earth abundant materials for low cost solar-driven hydrogen production , 2016 .

[25]  P. Diao,et al.  Cu2O/CuO Bilayered Composite as a High-Efficiency Photocathode for Photoelectrochemical Hydrogen Evolution Reaction , 2016, Scientific Reports.

[26]  M. Costache,et al.  Effect of carboxylic acid functionalized graphene on physical-chemical and biological performances of polysulfone porous films , 2016 .

[27]  Xiaoqiang Yu,et al.  Fabrication of TiO2/RGO/Cu2O heterostructure for photoelectrochemical hydrogen production , 2016 .

[28]  Chin Sheng Chua,et al.  Nanocrystal Engineering of Sputter-Grown CuO Photocathode for Visible-Light-Driven Electrochemical Water Splitting. , 2016, ACS applied materials & interfaces.

[29]  Zhengdong Cheng,et al.  Microwave-assisted synthesis of rod-like CuO/TiO2 for high-efficiency photocatalytic hydrogen evolution , 2015 .

[30]  G. Dalapati,et al.  Optical bandgap widening and phase transformation of nitrogen doped cupric oxide , 2015 .

[31]  D. Chi,et al.  Aluminium alloyed iron-silicide/silicon solar cells: A simple approach for low cost environmental-friendly photovoltaic technology , 2015, Scientific Reports.

[32]  Md. Rakibul Hasan,et al.  A sol–gel derived, copper-doped, titanium dioxide–reduced graphene oxide nanocomposite electrode for the photoelectrocatalytic reduction of CO2 to methanol and formic acid , 2015 .

[33]  G. Dalapati,et al.  Titanium doped cupric oxide for photovoltaic application , 2015 .

[34]  H. Hassan,et al.  A green chemical route for synthesis of graphene supported palladium nanoparticles: A highly active and recyclable catalyst for reduction of nitrobenzene , 2015 .

[35]  M. Qiao,et al.  Graphene-supported metal/metal oxide nanohybrids: synthesis and applications in heterogeneous catalysis , 2015 .

[36]  Yixuan Wang,et al.  Substituent Effects in π-Stacking of Histidine on Functionalized-SWNT and Graphene. , 2015, Computational & theoretical chemistry.

[37]  G. Dalapati,et al.  p‐CuO/n‐Si heterojunction solar cells with high open circuit voltage and photocurrent through interfacial engineering , 2015 .

[38]  M. Absi Halabi,et al.  Application of solar energy in the oil industry—Current status and future prospects , 2015 .

[39]  R. Meenakshi,et al.  Vibrational spectroscopic (FTIR and FT-Raman), first-order hyperpolarizablity, HOMO, LUMO, NBO, Mulliken charge analyses of 2-ethylimidazole based on Hartree-Fock and DFT calculations. , 2015, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[40]  N. Ding,et al.  Facile synthesis of size-tunable CuO/graphene composites and their high photocatalytic performance , 2015 .

[41]  Chin Sheng Chua,et al.  Sol-gel deposited Cu2O and CuO thin films for photocatalytic water splitting. , 2014, Physical chemistry chemical physics : PCCP.

[42]  Wei Chen,et al.  Graphene-supported nanoelectrocatalysts for fuel cells: synthesis, properties, and applications. , 2014, Chemical reviews.

[43]  G. Lu,et al.  Humidity-sensing properties of urchinlike CuO nanostructures modified by reduced graphene oxide. , 2014, ACS applied materials & interfaces.

[44]  Kai Zhang,et al.  Graphene‐Based Materials for Hydrogen Generation from Light‐Driven Water Splitting , 2013, Advanced materials.

[45]  G. N. Baum,et al.  Technical and economic feasibility of centralized facilities for solar hydrogen production via photocatalysis and photoelectrochemistry , 2013 .

[46]  Da Chen,et al.  Graphene and its derivatives for the development of solar cells, photoelectrochemical, and photocatalytic applications , 2013 .

[47]  E. List,et al.  Photovoltaic properties of thin film heterojunctions with cupric oxide absorber , 2013 .

[48]  Chia-Ying Chiang,et al.  Biological templates for antireflective current collectors for photoelectrochemical cell applications. , 2012, Nano letters.

[49]  Marc A. Rosen,et al.  Engineering Sustainability: A Technical Approach to Sustainability , 2012 .

[50]  Da Chen,et al.  Graphene oxide: preparation, functionalization, and electrochemical applications. , 2012, Chemical reviews.

[51]  D. Wilkinson,et al.  Nano-architecture and material designs for water splitting photoelectrodes. , 2012, Chemical Society reviews.

[52]  Vidar R. Jensen,et al.  The accuracy of DFT-optimized geometries of functional transition metal compounds: a validation study of catalysts for olefin metathesis and other reactions in the homogeneous phase. , 2012, Dalton transactions.

[53]  A. Ramasubramaniam,et al.  Binding of Pt Nanoclusters to Point Defects in Graphene: Adsorption, Morphology, and Electronic Structure , 2012 .

[54]  K. Burke.  Perspective on density functional theory. , 2012, The Journal of chemical physics.

[55]  Sean C. Smith,et al.  Understanding the enhancement in photoelectrochemical properties of photocatalytically prepared TiO2-reduced graphene oxide composite , 2011 .

[56]  Yong Wang,et al.  Stabilization of electrocatalytic metal nanoparticles at metal-metal oxide-graphene triple junction points. , 2011, Journal of the American Chemical Society.

[57]  G. Eda,et al.  Graphene oxide as a chemically tunable platform for optical applications. , 2010, Nature chemistry.

[58]  James R. McKone,et al.  Solar water splitting cells. , 2010, Chemical reviews.

[59]  D. Pujari,et al.  Mainstreaming Green Product Innovation: Why and How Companies Integrate Environmental Sustainability , 2010 .

[60]  Thomas F. Jaramillo,et al.  Accelerating materials development for photoelectrochemical hydrogen production: Standards for methods, definitions, and reporting protocols , 2010 .

[61]  SUPARNA DUTTASINHA,et al.  Graphene: Status and Prospects , 2009, Science.

[62]  A Paul Alivisatos,et al.  Materials availability expands the opportunity for large-scale photovoltaics deployment. , 2009, Environmental science & technology.

[63]  J. Harvey.  On the accuracy of density functional theory in transition metal chemistry , 2006 .

[64]  P. Geerlings,et al.  Conceptual density functional theory. , 2003, Chemical reviews.

[65]  F. A. Benko,et al.  A photoelectrochemical determination of the position of the conduction and valence band edges of p‐type CuO , 1982 .

[66]  A. Fujishima,et al.  Electrochemical Photolysis of Water at a Semiconductor Electrode , 1972, Nature.