Article
Chemistry, Multidisciplinary
Wence Xu, Guilan Fan, Shengli Zhu, Yanqin Liang, Zhenduo Cui, Zhaoyang Li, Hui Jiang, Shuilin Wu, Fangyi Cheng
Summary: This study introduces carbon-doped nanoporous cobalt phosphide as an electrocatalyst for hydrogen evolution reaction in seawater electrolysis, showing excellent catalytic activity and stability. Carbon atoms can tailor the electronic structure, reducing the energy barrier of water dissociation and promoting the kinetics of HER.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Yuntao Xu, Yanfei Cao, Li Tan, Qiao Chen, Yuanxing Fang
Summary: This study finds that using various cobalt phosphides as co-catalysts can improve the yield and selectivity of photoanodic hydrogen peroxide production, with Co2P exhibiting the best performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Samuel Mutinda, Tharanga N. Batugedara, Benjamin Brown, Olugbenga Adeniran, Zhen-Fei Liu, Stephanie L. Brock
Summary: The composition-dependent hydrogen evolution reaction (HER) activity of Co2-xRhxP nanoparticles in acid is reported. The study shows that Rh-rich electrocatalysts have superior activity compared to Co-rich ones, and despite comparable activity to Rh2P, Co2-xRhxP systems lack stability. Calculations suggest that Co0.75Rh1.25P is the most active composition in the series.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Jingwen Ma, Jun Wang, Junbin Li, Ying Tian, Tianai Zhang
Summary: This study presents a green synthesis strategy for the preparation of high-performance transition metal phosphides (TMPs), using N, P co-doped graphene supported cobalt phosphide nanoparticles as an efficient electrocatalyst for the hydrogen evolution reaction.
Article
Chemistry, Physical
Shuqing Zhou, Yuting Yang, Wanyu Zhang, Xianfa Rao, Puxuan Yan, Tayirjan Taylor Isimjan, Xiulin Yang
Summary: This study demonstrates a process for preparing a cobalt phosphide-supported Ru particulate nanocatalyst with abundant phosphorus vacancies, which shows excellent catalytic performance and high hydrogen generation rate in NaBH4 hydrolysis. The optimized catalyst has the lowest activation energy and good reusability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Yu-Lan Meng, Jie Tang, Xi Chen, Zan-Yao Niu, Yu-Hang Zhao, Yu Pan, Xiao-Feng Wang, Xue-Zhi Song, Zhenquan Tan
Summary: This study successfully synthesized hierarchical porous particle-on-sheet CoP catalysts with more exposed active sites, which can achieve superior catalytic activity with low overpotentials when optimized.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Zepeng Lv, Wansen Ma, Meng Wang, Jie Dang, Kailiang Jian, Dong Liu, Dejun Huang
Summary: The passage introduces an outstanding electrocatalyst with multiple heterostructure interfaces and a 3D porous structure, clarifying the mechanisms of enhanced electrocatalytic activity through multiple characterizations and density functional calculations. Specifically, the fabricated CPN@TC catalyst demonstrates excellent HER activity in 1 M KOH, attributed to its multiheterointerfaces for water and hydrogen adsorption, fine conductivity for electron transmission, and well-designed structure for rapid ion and gas transport. The study suggests that the synthetic strategy can be extended to enhance the catalytic performance of transition-metal-based phosphides.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Yu Zhang, Keke Xu, Bo Zhang, Shundong Guan, Xiuli Fu, Zhijian Peng
Summary: This study synthesized praseodymium-doped NiCoP nanowire arrays as electrocatalysts and found that the introduction of Pr can modulate the morphology and electrical conductivity, leading to exceptional HER performance. When the additive molar amount of Pr is 10%, the electrode exhibited the highest electrocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xian-Jun Niu, Ya-Jun Wang, Guo-Hong Gao, Teng-Da Yang, Jia-Wei Mei, Yong-Cheng Qi, Run-Ze Tian, Ji-Sen Li
Summary: A simple treatment of phosphidation followed by sulfidation is used to fabricate heterogeneous cobalt phosphide-cobalt sulfide nanowire arrays, which exhibit efficient pH-universal hydrogen production. The as-prepared catalyst outperforms commercial Pt-C/CC catalyst, indicating a promising pathway for the development of high-performance electrocatalysts for hydrogen production.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Huimin Zhao, Guanyun Gao, Yanling Wang, Ruixin Chen, Yunmei Du, Minghui Wang, Zhenjiang Li, Yanru Liu, Lei Wang
Summary: In this study, a N-doped CoP electrocatalyst coated with carbon nanotubes (CoP@NC) was successfully synthesized. By optimizing the electronic structure and improving the charge transfer rate, the catalyst exhibited excellent catalytic performance under both acidic and alkaline conditions, providing an efficient approach for optimizing electrocatalyst performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Merfat M. Alsabban, Mathan Kumar Eswaran, Karthik Peramaiah, Wandi Wahyudi, Xiulin Yang, Vinoth Ramalingam, Mohamed N. Hedhili, Xiaohe Miao, Udo Schwingenschlogl, Lain-Jong Li, Vincent Tung, Kuo-Wei Huang
Summary: This paper reports a electrocatalyst with activity and durability in an alkaline medium, and reveals its high efficiency reaction mechanism through theoretical studies.
Article
Materials Science, Multidisciplinary
Chen Yang, Yukun Zhu, Yiming Liu, Hongwei Wang, Dongjiang Yang
Summary: In this study, a cobalt phosphide-modified red phosphorus heterostructure was developed, exhibiting high photocatalytic hydrogen production activity under visible light irradiation. By tuning the amount of cobalt phosphide, the optimized hybrid showed a significantly improved hydrogen evolution rate under visible light, and the interaction between CoP2 and RP played a crucial role in enhancing the activity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Junkai Zhao, Kuo Bao, Mingzhu Xie, Daina Wei, Kaimeng Yang, Xiaobao Zhang, Ce Zhang, Zhaolong Wang, Xiaojing Yang
Summary: The application of hydrogen is a promising way to alleviate global energy pollution. However, the current electrocatalytic hydrogen evolution using noble metals is limited by low kinetics. Therefore, it is urgent to develop non-noble metal electrocatalysts with enhanced efficiency and environmental friendliness. In this study, two-dimensional ultrathin CoP networked materials were successfully synthesized and showed high current density and cyclic stability, suggesting their potential applications in various electrochemical energy conversion and storage fields.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Mengru Yang, Yuanqiang Wang, Yanfang Gu, Zhili Xue, Junhui Shi, Wei An, Yichuan Rui
Summary: This study reports a novel construction strategy of thin-leaf-shaped cobalt phosphide combined with copper nanoclusters supported on nickel foam, which exhibits good performance in electrocatalytic water-splitting. The interface-engineered nanocomposite shows enhanced electrochemical characteristics with a large number of active sites and low charge-transfer resistance. The proposed electrode demonstrates good stability and lower overpotential, providing a new perspective for the engineering of non-noble metals in metal phosphides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Xiaowen Yu, Jun Zhao, Mats Johnsson
Summary: The study introduces a hybrid catalyst composed of iron-doped cobalt phosphide nanowire arrays and Ni(OH)(2) nanosheets, which exhibit strong electronic interactions at the interface, significantly enhancing interfacial reactivity. Experimental and theoretical studies confirm that the hybrid catalyst promotes the sluggish rate-limiting steps in both the HER and OER processes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Correction
Chemistry, Multidisciplinary
Rishi G. Agarwal, Catherine F. Wise, Jeffrey J. Warren, James M. Mayer
Review
Chemistry, Multidisciplinary
Rishi G. Agarwal, Scott C. Coste, Benjamin D. Groff, Abigail M. Heuer, Hyunho Noh, Giovanny A. Parada, Catherine F. Wise, Eva M. Nichols, Jeffrey J. Warren, James M. Mayer
Summary: This paper provides an update and revision to a 2010 review on proton-coupled electron transfer (PCET) reagent thermochemistry, correcting systematic errors and presenting updated tables of thermochemical values. It discusses new conclusions and opportunities arising from the assembled data and techniques, emphasizing the importance of updated thermochemical cycles in PCET reactions for calculation and measurement of Gibbs free energies. Additionally, the paper introduces several emerging fields in PCET thermochemistry, highlighting the diversity of research being conducted in this rapidly growing field.
Article
Chemistry, Inorganic & Nuclear
Jennifer L. Peper, Noreen E. Gentry, Benjamin Boudy, James M. Mayer
Summary: This study investigates the relationship between the redox reactions of aqueous colloidal TiO2 nanoparticles and pH. The results show that the reduction potentials of the nanoparticles are linearly correlated to the pH values, with a coefficient of -60 +/- 5 mV/pH. Additionally, it is found that both capped and uncapped nanoparticles exhibit similar reduction potentials at low pH. Furthermore, proton-coupled electron transfer is suggested to be the preferred mode of redox reactions.
INORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Shuai Jiang, Qiheng Qian, Tongtong Zhu, Wenting Zong, Yunfei Shang, Tong Jin, Yuansheng Zhang, Ming Chen, Zishan Wu, Yuan Chu, Rongqin Zhang, Sicheng Luo, Wei Jing, Dong Zou, Yiming Bao, Jingfa Xiao, Zhang Zhang
Summary: Single-cell studies have uncovered a growing number of previously uncharacterized cell types in complex tissues. To understand cellular heterogeneity and tumorigenesis at single-cell resolution, a comprehensive and curated repository of cell types and associated cell markers, called Cell Taxonomy, has been established. This database provides well-structured taxonomy for 3,143 cell types and collects a comprehensive collection of 26,613 associated cell markers across various species, tissues, and conditions. With the integration of literature curation and data, Cell Taxonomy offers multifaceted characterization for cell types and cell markers, enabling better understanding of cellular biology across species.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yao Yang, Rishi G. Agarwal, Phillips Hutchison, Ruben Rizo, Alexander Soudackov, Xinyao Lu, Enrique Herrero, Juan M. Feliu, Sharon Hammes-Schiffer, James M. Mayer, Hector D. Abruna
Summary: This study reveals that Pt(111) exhibits higher ORR activity in D2O compared to H2O, and the inverse kinetic isotope effects (KIEs) are closely related to the coverage and binding strength.
Article
Environmental Sciences
Jiajin Song, Zhiruo Zheng, Hua Fang, Tongxin Li, Zishan Wu, Mengting Qiu, Hongjian Shen, Jiajia Mei, Lihui Xu
Summary: The study investigated the initial deposition amount, dissipation dynamics, retention rate, and field control efficacy of difenoconazole in pepper-soil system with different application dosages, planting regions, and patterns. The results showed that the initial deposition amount of difenoconazole increased with increasing application dosage and varied among different plant parts, planting regions, and patterns. The dissipation rates exhibited a trend of initially fast and then slow, while the retention rates increased initially and then stabilized with increasing application dosages. The field efficacy mostly reached the minimum effective dose after 7 days of difenoconazole application.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Benjamin D. Groff, Mauricio Cattaneo, Scott C. Coste, Chloe A. Pressley, Brandon Q. Mercado, James M. Mayer
Summary: Two series of Ru-II(acac)(2)(py-imH) complexes were synthesized, one with changes to acac ligands and the other with substitutions to imidazole. The proton-coupled electron transfer (PCET) thermochemistry of the complexes in acetonitrile was studied, and it was found that the acac substitutions mainly affected the redox potentials of the complex, while the changes to the imidazole primarily affected its acidity. DFT calculations supported this decoupling phenomenon, which has implications for separately tuning the redox and acid/base properties.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Yash Samantaray, Daniel J. Martin, Rishi G. Agarwal, Noah J. Gibson, James M. Mayer
Summary: Metal oxide (MOx) materials are effective catalysts or cocatalysts in electrochemical reactions and energy systems, and their redox chemistry involves proton coupled electron transfer (PCET). This study investigates isolated cerium oxide nanoparticles deposited on fluorine-doped tin oxide electrodes, finding well-defined, quasi-reversible waves in the cyclic voltammograms of the films. The results reveal the stoichiometry and thermochemistry of the PCET processes of MOx nanoparticle films, and highlight the diverse properties of ceria nanoparticles.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Review
Chemistry, Multidisciplinary
James M. Mayer
Summary: This Perspective argues that most redox reactions at an interface with a protic solution involve net proton-coupled electron transfer. The view contrasts with the traditional electron-transfer focused view of redox reactions at semiconductors, but redox processes at metal surfaces are often described as PCET. The importance of surface-H bond dissociation free energy as the preeminent energetic parameter and its conceptual equivalents in understanding thermodynamics of PCET at interfaces is emphasized.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Correction
Chemistry, Multidisciplinary
Rishi G. G. Agarwal, James M. M. Mayer
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Conor L. Rooney, Mason Lyons, Yueshen Wu, Gongfang Hu, Maoyu Wang, Chungseok Choi, Yuanzuo Gao, Chun-Wai Chang, Gary W. Brudvig, Zhenxing Feng, Hailiang Wang
Summary: This study investigates the CO2 reduction to methanol catalyzed by CoPc through in situ X-ray absorption spectroscopy characterization. CoPc dispersed on CNT surfaces enables fast electron transfer and multi-electron CO2 reduction. The labile CO intermediate on the active site requires a high local concentration to compete with CO2 and promote methanol production. The bridging aza-N atoms of the Pc macrocycle are critical components of the CoPc active site.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Abigail M. M. Heuer, Scott C. C. Coste, Gurjot Singh, Brandon Q. Q. Mercado, James M. M. Mayer
Summary: Triphenylmethyl (trityl) radicals have been widely used since their discovery in 1900 due to their stability, persistence, and spectroscopic activity. However, existing synthetic routes to tris(4-substituted)-trityl radicals often result in impure materials. In this study, we report robust syntheses of six electronically varied trityl radicals, providing high purity crystalline materials for further research.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Alexandre Genoux, Magnus Pauly, Conor L. Rooney, Chungseok Choi, Bo Shang, Scott McGuigan, Majed S. Fataftah, Yves Kayser, Simon C. B. Suhr, Serena Debeer, Hailiang Wang, Paul A. Maggard, Patrick L. Holland
Summary: Carbon nitride materials with stoichiometric iron sites having the same environment were synthesized and characterized. The material showed tetrahedral high-spin iron(II) sites throughout and exhibited excellent electrocatalytic activity for nitrate reduction to ammonia.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaofan Jia, Kai Cui, Jose L. Alvarez-Hernandez, Carrie L. Donley, Albert Gang, Sharon Hammes-Schiffer, Nilay Hazari, Sungho Jeon, James M. Mayer, Hannah S. Nedzbala, Bo Shang, Eric A. Stach, Eleanor Stewart-Jones, Hailiang Wang, Alexa Williams
Summary: Three molecular Re hydrides with silatrane functional groups were synthesized for attachment on metal oxide surfaces. These complexes demonstrated similar electronic properties to a control compound and acted as electrocatalysts for CO2 reduction in solution. However, when immobilized on surfaces, the hydride ligand was lost and the complexes degraded. This work exemplifies the challenges of attaching molecular hydride complexes to metal oxide surfaces.
Article
Chemistry, Organic
Benjamin D. Groff, Brian Koronkiewicz, James M. Mayer
Summary: The study reanalyzed the rate constants for HAT reactions of substituted toluenes with tert-butyl, tert-butoxy, and tert-butylperoxyl radicals, and found a qualitative polar effect in the reactions.
JOURNAL OF ORGANIC CHEMISTRY
(2023)