Results 61 to 70 of about 31,504 (300)

Decoupling the Size and Loading Effects in Silver Nanoparticles for Efficient Paired Carbon Dioxide and Formaldehyde Electrolysis

Advanced Functional Materials, EarlyView.
We investigate size‐dependent CO selectivity on Ag nanoparticles, where optimized Ag loading achieves nearly 100% Faradaic Efficiency for CO at −100 mA·cm−2. In situ SERS and XPS reveal the crucial role of optimized loading in catalytic performance. The Ag/C catalyst further exhibits bifunctional activity, enabling efficient electrolysis of CO2 and ...
Venkata S. R. K. Tandava, Clara Große, Debabrata Bagchi, Zhenye Zhu, Suptish Ghosh, J. Niklas Hausmann, Carsten Walter, Rosario Suarez Anzorena, Catalina Elena Jimenez, Yasmin Lucero Cobos‐Becerra, Jack C. Q. Fletcher, Tobias Sontheimer, Michael Schwarze, Holger Dau, Matthias Driess, Marcus Bär, Prashanth W. Menezes   +16 more
wiley   +1 more source

Fine‐tuning electronic structure of N‐doped graphitic carbon‐supported Co‐ and Fe‐incorporated Mo2C to achieve ultrahigh electrochemical water oxidation activity

Carbon Energy
Mo2C is an excellent electrocatalyst for hydrogen evolution reaction (HER). However, Mo2C is a poor electrocatalyst for oxygen evolution reaction (OER).
Md. Selim Arif Sher Shah, Hyeonjung Jung, Vinod K. Paidi, Kug‐Seung Lee, Jeong Woo Han, Jong Hyeok Park   +5 more
doaj   +1 more source

Preparation of PtSn/C-Rh and PtSn/C-CeO2 for Ethanol Electro-Oxidation

International Journal of Electrochemical Science, 2010
PtSn/CeO2–C electrocatalyst and PtSn/Rh-C were prepared in a two step. In the first step a Carbon Vulcan XC72 + 15%CeO2 and Vulcan XC72 + 15%Rh supports were prepared using a modified polymeric precursor method under controlled synthesis conditions.
Rodrigo Fernando Brambilla De Souza, Marcelo Marques Tusi, Michele Brandalise, Ricardo Rodrigues Dias, Marcelo Linardi, Estevam Vitorio Spinacé, Mauro Coelho dos Santos, Almir Oliveira Neto   +7 more
doaj   +1 more source

Electrocatalyst

, 2019
The Haber‐Bosch process can be replaced by the ambient electrocatalytic N2 reduction reaction (NRR) to produce NH3 if suitable electrocatalysts can be developed.
Qizhong Xiong, Zhao, Huijun, Han, Miaomiao, Wanbing Gong, Haimin Zhang, Zhang, Shengbo, Cuijiao Zhao, Zhao, Cuijiao, Yanyan Liu, Miaomiao Han, Guozhong Wang, Gong, Wanbing, Zhang, Haimin, Huijun Zhao, Wang, Guozhong, Liu, Yanyan, Shengbo Zhang, Xiong, Qizhong   +17 more
core   +1 more source

Metal-free, active nitrogen-enriched, efficient bifunctional oxygen electrocatalyst for ultrastable zinc-air batteries

, 2020
The availability of efficient, low-cost and durable oxygen electrocatalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is the prerequisites for large-scale,practical application of rechargeable zinc (Zn)-air batteries.
Chen, Yanan, Wu, Weicui, Liu, Siliang, Zhao, Xiaoxian, Yang, Yu, Chen, Xin, Wang, Lei, Feng, Shouhua, Yin, Huajie, Fan, Kaicai, Zong, Lingbo, Liu, Chang, Wang, Fengmei   +12 more
core   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

The stability of a PtRu/C electrocatalyst at anode potentials in a direct methanol fuel cell

, 2006
Potential-scan tests were conducted to evaluate the stability of a PtRu/C electrocatalyst at anode potentials in a direct methanol fuel cell (DMFC). The results show that, under normal operating conditions, the anode potential in a DMFC is benign for the
Chen, Weimin, Wang, Guoxiong, Xin, Qin, Sun, Gongquan, 辛勤, Mao, Qing, Liang, Zhenxing, Pak, Chanho, Chang, Hyuk, Seung, Doyoung, Li, Huanqiao   +10 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

2,2’-Dipyridylamine as Heterogeneous Organic Molecular Electrocatalyst for Two-Electron Oxygen Reduction Reaction in Acid Media [PDF]

, 2019
Continuous production of hydrogen peroxide (H2O2) through the two-electron oxygen reduction reaction (2e-ORR) in distributed electrochemical cells offers important advantages for point-of-use water treatment and pulp bleaching over the complex industrial
Xi, Yin, Ulises, Martinez, Piotr, Zelenay, Ling, Lin   +3 more
core   +2 more sources

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

Advanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan, Soshan Cheong, Sankhadip Saha, Qinyu Li, Xiaoran Zheng, Samuel V. Somerville, Agus R. Poerwoprajitno, Priyank V. Kumar, Liming Dai, J. Justin Gooding, Richard D. Tilley   +10 more
wiley   +1 more source