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Acid and alkaline EDLs in hydrogen electrocatalysis. For the interface models with a 4 × 4 orthogonal Pt(111) slab used in the present study (Supplementary Figs. 1–3), the introduction of two H ...• Methods in electrocatalysis research • Figures of merit for electrocatalyst development Three ways to report current densities: • Per geometric 2area (cm geo) • Per 2surface area (cm real) • Per electrochemically 2active surface area (cm ECSA) • This is the closest to providing a true Turnover Frequency (TOF)Electrocatalysis · Using models to identify optimal catalytic sites · Development of electrocatalysts for oxygen reduction reaction · Relevant group publications.The understanding of binary alloy electrocatalysis has achieved significant advancement in the development of nanoscience and nanotechnology. In most cases, a binary alloy consists of two metal components with complementary properties to circumvent the shortcomings of the two elements and achieve the effect of synergistic catalysis [17].Introduction. Photocatalysis and electrocatalysis play important roles in solving energy and environmental problems. Photocatalysis can store solar energy into molecular bonds or utilize solar energy to degrade pollutants by leading various chemical reactions with the help of photocatalysts, while electrocatalysis can implement parallel …Abstract. Two-dimensional conductive metal-organic frameworks (2D-cMOFs) are a class of 2D layered MOFs with excellent electrical conductivity and other electronic properties. In recent years, their porous structure and dense active sites have been widely used in electrocatalysis and electrochemical sensing.The loadings for the electrocatalysis studies were 0.1 to 1 mg · cm −2 and the current densities were 1 to 10 mA·cm −2, similar to the WD current densities studied in the BPM. The currents for the electrocatalysts are normalized to mass because higher loadings lead to larger current. The WD current was not normalized to mass because a ...Compared with other TM-based oxides/hydroxides, layered double hydroxides (LDHs) have achieved increasing attention for electrocatalysis, which can be described in a general formula of [M 2+ 1-x M 3+ x (OH) 2] x + [A n − x / n] x − ·mH 2 O, where M 2+ and M 3+ refer to the metal ions with +2 and +3 valence, respectively, and A n − represents the charge …Oct 18, 2023 · Modulating adsorbed hydrogen drives electrochemical CO 2 -to-C 2 products. A dual-site catalyst consisting of Cu nanoparticles (NPs) and atomic Cu sites is designed. The atomic Cu boosts H2O ... Electrochemical water oxidation in acidic media is a promising water-splitting technique, but typically requires noble metal catalysts. Now, two polyoxometalate salts based on earth-abundant ...Oxygen (O 2) is the most abundant element in the Earth's crust. The oxygen reduction reaction (ORR) is also the most important reaction in life processes such as biological respiration, and in energy converting systems such as fuel cells. ORR in aqueous solutions occurs mainly by two pathways: the direct 4-electron reduction pathway from O 2 ...Atomically isolated nickel species anchored on graphitized carbon for efficient hydrogen evolution electrocatalysis. Nat. Commun. 7:10667 doi: 10.1038/ncomms10667 (2016).The sluggish methanol oxidation reaction (MOR) remains the biggest challenge for direct methanol fuel cells. To advance our understanding of the MOR mechanism, we have employed dual thin-layer differential electrochemical mass spectrometry (DEMS) to study reaction intermediates on a family of Pt–Fe–Cu ternary …The Electrocatalysis Consortium (ElectroCat) is an initiative to accelerate the development of catalysts made without platinum group metals (PGM-free) for use in fuel cell applications across multiple sectors. Current state-of-the-art fuel cell systems rely on platinum-based catalysts that make up nearly 50% of the total fuel cell cost ...Electrocatalysis can efficiently convert raw materials into chemicals by renewable electricity, which attracts great attention in recent years 1,2.However, electrode/catalyst deterioration is a ...The development of efficient and robust earth-abundant electrocatalysts for the hydrogen evolution reaction (HER) is an ongoing challenge. We report metallic cobalt pyrite (cobalt disulfide, CoS2) as one such high-activity candidate material and demonstrate that its specific morphology—film, microwire, or nanowire, made available through controlled synthesis—plays a crucial role in ...In recent years, we are witnessing a substantially growing scientific interest in MOFs and their derived materials in the field of electrocatalysis. MOFs acting as a self-sacrificing template offer various advantages for the synthesis of carbon-rich materials, metal oxides, and metal nanostructures containing graphitic carbon-based materials benefiting from the high surface area, porous ...Jovanov, Z. P. et al. Opportunities and challenges in the electrocatalysis of CO 2 and CO reduction using bifunctional surfaces: a theoretical and experimental study of Au-Cd alloys. J.The field of electrocatalysis has greatly advanced through the development of tailored materials via elaborate synthesis protocols. Thereby, the chemical composition as well as the surface morphology have been tuned using a rational design of catalysts approach. The synthesized materials are routinely characterized intensively with bulk or near ...Electrocatalysis has been studied for a while, and uses electricity to split water (H2O) molecules into hydrogen (H2) and oxygen (O2). Electricity works as a catalyst, which means it speeds up the ...Recently, HEA catalysts are extensively studied in the field of electrocatalysis; this motivated the authors to investigate the relationship between the structure and composition of HEAs and their electrocatalytic performance. In this review, the latest advances in HEA electrocatalysts are systematically summarized, ...Visible-light photocatalysis and electrocatalysis are two powerful strategies for the promotion of chemical reactions that have received tremendous attention in recent years. In contrast, processes that combine these two modalities, an area termed electrophotocatalysis, have until recently remained quite rare. However, over the past several years a number of reports in this area have shown the ...The applications in electrocatalysis are discussed separately according to surface property imaging, in situ/operando monitoring, and nanoscale electrochemical mapping (Scheme 1). Finally, the challenges and future development trends of SPM in electrocatalysis are further discussed. It is expected that, by reviewing the implementation of SPM ...

Finally, a summary on the advantages and challenges of amorphous alloys in electrocatalysis is provided, along with some perspectives about the future research directions. Amorphous alloys, also known as metallic glasses, are solid metallic materials having long-range disordered atomic structures. Compared to crystalline alloPhotocatalysis and electrocatalysis have been essential parts of electrochemical processes for over half a century. Recent progress in the controllable synthesis of 2D nanomaterials has exhibited enhanced catalytic performance compared to bulk materials. This has led to significant interest in the exploitation of 2D nanomaterials for catalysis. There have been a variety of excellent reviews on ...Electrocatalysis plays a significant role in energy conversion and energy storage; and with the fast development of energy devices, catalysis monitoring techniques, catalyst development and the novel and in-depth understanding of the catalysis phenomena, some novel findings are being or will be released by the researchers. ...This article is cited by 19 publications. Yifan Yan, Hua Zhou, Si-Min Xu, Jiangrong Yang, Pengjie Hao, Xi Cai, Yue Ren, Ming Xu, Xianggui Kong, Mingfei Shao, Zhenhua Li, Haohong Duan. Electrocatalytic Upcycling of Biomass and Plastic Wastes to Biodegradable Polymer Monomers and Hydrogen Fuel at High Current Densities.Graphitic carbon nitride, g-C 3 N 4, a carbonaceous material that has a planar phase analogous to graphite, has also been extensively investigated for metal-free electrocatalysis of ORR (100, 101). g-C 3 N 4 can be readily obtained through the pyrolysis of cyanamide , melamine , ethylenediamine/carbon tetrachloride , or s-triazine derivatives ...

Impact of Intrinsic Density Functional Theory Errors on the Predictive Power of Nitrogen Cycle Electrocatalysis Models. ACS Catalysis 2022 , 12 (8) , 4784-4791.Recently, electrocatalysis on high-entropy alloys (HEAs) and high-entropy compounds (HECs) has emerged as a new and promising material owing to the tailored composition and the disordered ...In the past 5 years, advances in anion-conductive membranes have opened the door for the development of advanced anion-exchange membrane fuel cells (AEMFCs) as the next generation of affordable fuel cells. Several recent works have shown that AEMFCs currently achieve nearly identical beginning-of-life performance as state-of-the ……

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Single atom catalysts (SACs) have been attracting extensive attention . Possible cause: Electrocatalysis, an essential tool for storing renewable energy and promo.