Semantic Scholar extracted view of "ACS Energy Letters: Elevating Solar Fuels and Electrocatalysis Research" by S. Boettcher. Application of X‐Ray Absorption Spectroscopy in Electrocatalytic Water Splitting and CO 2 Reduction as well as technology gaps for achieving cost-effective scalable deployment combined with storage technologies
Advanced energy conversion and storage (ECS) devices (including fuel cells, photoelectrochem. water splitting cells, solar cells, Li-ion batteries and supercapacitors) are expected to play a major role in the development of sustainable technologies that alleviate the energy and environmental challenges we are currently facing.
Photoelectrochemical (PEC) water splitting represents a promising route to convert solar energy into clean hydrogen. Constructing tandem cells has emerged as a feasible approach and attracted tremendous attention for self-biased water splitting, especially using low-cost and stable metal oxides. Herein, a state-of-the-art review of metal oxide-based
Storing solar and other renewable energies at the terawatt scale, and at an end-user cost that outcompetes fossil fuels, is perhaps the greatest technological challenge of our generation. At ACS Energy Letters we are dedicated to publishing and promoting significant advances or new insight, based on high-quality experiment and/or theory, in these practically
Read research published in the ACS Energy Letters Vol. 8 Issue 5 on ACS Publications, a trusted source for peer-reviewed journals. Nanostructured Tantalum Nitride for Enhanced Solar Water Splitting. Yuriy Pihosh *, Vikas Nandal *, Ryota Shoji, Raman Bekarevich, Tomohiro Higashi, Harry A. Atwater, William A. Goddard III, Theodor Agapie *,
Water splitting via photocatalysis has the potential to produce clean, renewable hydrogen. Although various new photocatalysts have been reported, developing semiconductor materials that efficiently convert the
Karuturi, S. K. Over 17% Efficiency Stand-Alone Solar Water Splitting Enabled by Perovskite-Silicon Tandem Absorbers. Adv. Energy Mater. 2020, 10, 2000772, DOI: 10.1002/aenm.202000772 Luo, J. Water photolysis at 12.3% efficiency via perovskite photovoltaics and Earth-abundant catalysts.
Because the solar energy reaching the Earth per second is greater than 1.465 × 10 14 J, which is equivalent to the energy in 5 million tons of coal, artificial photosynthesis is believed to be the most adaptable solution to the current energy and environmental crisis. Therefore, research on solar-to-fuel conversion through photochemical reactions continues to
As a globally abundant and economical energy source, solar energy is the fastest growing renewable alternative to fossil fuels. Artificial photosynthesis uses sunlight for the production of renewable chemical fuels, so-called solar fuels, thus addre Organic–inorganic lead halide perovskites have received much attention due to their low production costs and promising PV
Solar H2 production is considered as a potentially promising way to utilize solar energy and tackle climate change stemming from the combustion of fossil fuels. Photocatalytic, photoelectrochemical, photovoltaic–electrochemical, solar thermochemical, photothermal catalytic, and photobiological technologies are the most intensively studied routes for solar H2
Photoelectrodes used in solar water splitting must operate in aqueous media. However, computational studies that explicitly compare the dry and solvated photoelectrode energetics at finite temperature and the impact of the photoelectrode surface composition and surface defects are lacking. Here, we used first-principles molecular dynamics simulations to
The performance of overall solar water splitting has been largely limited by the half-reaction of water oxidation. Here, we report a 1.7 eV bandgap InGaN nanowire photoanode for efficient solar water oxidation. It produces a low onset potential of 0.1 V versus a reversible hydrogen electrode (RHE) and a high photocurrent density of 5.2 mA/cm2 at a potential as low as 0.6 V versus
Simultaneously achieving efficient and stable operation is a major challenge for developing sustainable and economical solar water-splitting systems. In this work, we demonstrate, for the first time, a monolithically integrated InGaN/Si double-junction photocathode, which can enable relatively efficient and stable unassisted solar water splitting. The device
For silicon PV, we set the total CAPEX at 1300 € 2021 /kWp, the operational expenditures (OPEX) at 26 €/kWp/yr, the residential PV system lifetime to 30 years, and the annual degradation rate (ADR) to 0.5%/yr. Of the total CAPEX, 40% is attributed to module costs, while the remaining 60% accounts for BOS costs. Under these conditions and for a solar
This work aims to understand the spin-coating growth process of BiVO4 photoanodes from a photon absorption and conversion perspective. BiVO4 layers with thicknesses ranging from 7 to 48 nm and the role of a thin (<5 nm) SnO2 hole-blocking layer have been studied. The internal absorbed photon-to-current efficiency (APCE) is found to be
The system reaches a value of 0.85 of the theoretical limit for photoelectrochemical water splitting for the energy gap combination employed in the tandem-junction photoelectrode structure. To access this article, please review the available access options below. Read this article for 48 hours. Check out below using your ACS ID or as a guest.
Efficient unassisted solar water splitting, a pathway to storable renewable energy in the form of chemical bonds, requires optimization of a photoelectrochemical device
Read research published in the ACS Energy Letters Vol. 9 Issue 4 on ACS Publications, a trusted source for peer-reviewed journals. Scalable Photoelectrochemical Cell for Overall Solar Water Splitting into H 2 and H 2 O 2. Yang An, Cheng Lin, Chaoran Dong, Ruiling Wang, Jingxuan Hao, Jiaming Miao, Harry A. Atwater, Theodor Agapie *,
The cost analysis for the NiFeMo-NF Hydrogen prodn. via solar water splitting is regarded as one of the most promising ways to utilize solar energy and has attracted more and more attention. Y. Defect-Engineered Ultrathin δ-MnO2Nanosheet Arrays as Bifunctional Electrodes for Efficient Overall Water Splitting. Adv. Energy Mater. 2017, 7
Efficient unassisted solar water splitting, a pathway to storable renewable energy in the form of chemical bonds, requires optimization of a photoelectrochemical device based on photovoltaic tandem heterojunctions. We report a monolithic photocathode device architecture that exhibits significantly reduced surface reflectivity, minimizing parasitic light absorption and
A review. Water splitting to form hydrogen and oxygen over a heterogeneous photocatalyst using solar energy is a promising process for clean and renewable hydrogen prodn. In recent years, numerous attempts have been made for the development of photocatalysts that work under visible light irradn. to efficiently utilize solar energy.
Hence, by plotting the overpotential against log j, the slope (2.303RT/αnF) and j 0 (from the intercept at equilibrium potential) are obtained. Here, j 0 is a measure of activity, whereas the Tafel slope could shed light on the mechanism and the kinetics of the reaction under study. (Caution: Readers are advised to be vigilant regarding the applicability of Tafel analysis
With the escalating demand for clean and sustainable energy sources, hydrogen emerges as a paramount contender, necessitating efficient and innovative production methods of water splitting. This review ventures into the burgeoning field of yolk@shell nanostructures and their pivotal role in advancing water splitting technologies. The synthesis, unique properties,
The device features a large open-circuit voltage of 1.09 V and a high solar-to-electric power conversion efficiency of 19.4%. Additional performance metrics are presented in the inset.
A key finding is that the prodn. costs are consistent with the Department of Energy''s targeted threshold cost of $2.00-$4.00 per kg H2 for dispensed hydrogen, demonstrating that photoelectrochem. water splitting could be a viable route for hydrogen prodn. in the future if material performance targets can be met.
A key finding is that the prodn. costs are consistent with the Department of Energy''s targeted threshold cost of $2.00-$4.00 per kg H2 for dispensed hydrogen, demonstrating that photoelectrochem. water splitting could be a
(A) PEC Water Splitting without a Surface-Protection Layer. The PEC water-splitting performance of the 3J photoanode was tested using cyclic voltammetry (CV) in a gas-tight quartz cell without any uncompensated resistance (iR) correction.The three-electrode measurement setup consists of a Pt counter electrode, a Ag/AgCl reference electrode, and the 3J photoanode as a working
d shows Pt nanoparticle coverage on the sidewall of the nanowire and on the top/bottom surfaces as the images show a 3D projection of the structure onto a 2D image.
While photoelectrochemical (PEC) solar-to-hydrogen efficiencies have greatly improved over the past few decades, advances in PEC durability have lagged behind. Corrosion of semiconductor photoabsorbers in the aqueous conditions needed for water splitting is a major challenge that limits device stability. In addition, a precious-metal catalyst is often required to
Photoelectrochemical (PEC) and solar thermochemical (STCH) water-splitting represent two promising pathways for direct solar hydrogen generation. PEC water-splitting integrates multiple functional materials and utilizes energetic electrons and holes generated from sunlight to produce hydrogen and oxygen in two half-reactions, while STCH water-splitting couples a series of
This analysis reveals that it is preferable to utilize a two-series connected PSC configuration for the complete solar-driven water-splitting device, because of the high VOC and FF of the PSC in combination with the low overpotential of the NiFeMo-NF|NiFeMo-NP catalyst pair.
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