Results 51 to 60 of about 27,278 (305)

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

Modulation of Co-N4 active sites in 1D-2D heterostructure as bifunctional electrocatalyst for nitrate and nitrogen reduction reaction

, 2022
Ammonia (NH3) is a key agricultural component and a source of clean energy as a hydrogen mediator. Ammonia is produced by Haber Bosch process, resulting in massive energy consumption and severe environmental impact.
Sourav, Paul, Sougata , Sarkar, Uttam Kumar, Ghorai, Ashadul , Adalder, Samadhan , Kapse, Ranjit, Thapa   +5 more
core   +1 more source

General Synthesis of Amorphous Pd‐Based Nanoparticles Towards Highly Efficient Nitrate‐to‐Ammonia Electrocatalysis

Advanced Functional Materials, EarlyView.
A family of amorphous palladium‐based multi‐component phosphides nanoparticles, synthesized via a robust one‐step wet‐chemical method, overcoming the immiscibility of different elements and the difficulty in forming a stable, disordered structure. When applied in the electrochemical nitrate reduction reaction, these nanocatalysts effectively suppress ...
Lei Xu, Chuhao Luan, Mingzi Sun, Weiwei Chen, Xiaozhi Liu, Chen Ma, Long Zheng, Gang Wang, Peng Han, Ping Gu, Xiao Wang, Chenhao Shu, Cheng Lyu, Zhenyu Zhang, Nailiang Yang, Hongyan He, Xiaohong Li, Dong Su, Bolong Huang, Wenjun Zhang, Ye Chen   +20 more
wiley   +1 more source

Enhanced oxygen reduction with single-atomic-site iron catalysts for a zinc-air battery and hydrogen-air fuel cell

Nature Communications, 2018
Development of fuel cells and metal-air batteries is hindered by electrocatalyst performance, which can be enhanced with uniform and atomically dispersed active sites. Here the authors report an iron-based electrocatalyst for oxygen reduction in cathodes
Yuanjun Chen, Shufang Ji, Shu Zhao, Wenxing Chen, Juncai Dong, Weng-Chon Cheong, Rongan Shen, Xiaodong Wen, Lirong Zheng, Alexandre I. Rykov, Shichang Cai, Haolin Tang, Zhongbin Zhuang, Chen Chen, Qing Peng, Dingsheng Wang, Yadong Li   +16 more
doaj   +1 more source

Electrolyte‐Induced Cu+ Preservation Results in a Selectivity Switch of Electrocatalytic CO2 Reduction at a Copper‐Organic Framework as Electrocatalyst

Advanced Functional Materials, EarlyView.
The active role of KCl as a neutral electrolyte enables switching the selectivity on a Cu organic framework from C1 to C2+ products during electrocatalytic CO2 reduction. ABSTRACT We introduce a copper‐nicotinate (Cu‐NA) framework as a halogenide‐stabilized Cu+/Cu0 pre‐catalyst for electrocatalytic CO2 reduction with high C2+ selectivity in a “neutral”
Anirudha Shekhawat, Muhammad Adib Abdillah Mahbub, Lejing Li, Bashir Eid, Ridha Zerdoumi, Sabine Seisel, Carla Santana Santos, Nini Zhang, Thomas Quast, Xin Wang, Wolfgang Schuhmann, Debanjan Das   +11 more
wiley   +1 more source

Platinum nanoparticles/functionalized carbon nanoparticles composites supported on the carbon-ceramic electrode and their electroactivity for ethanol oxidation [PDF]

Hydrogen, Fuel Cell & Energy Storage, 2018
The electrocatalytic oxidation of ethanol was studied for the platinum nanoparticles/ functionalized carbon nanoparticles composites supported at the carbon-ceramic electrode (PtNPs/tosyl-CNPs/CCE) as an electrocatalyst in acidic medium.
biuck habibi, Hamideh Imanzadeh
doaj   +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

Effect of Copper Cobalt Oxide Composition on Oxygen Evolution Electrocatalysts for Anion Exchange Membrane Water Electrolysis

Frontiers in Chemistry, 2020
Copper cobalt oxide nanoparticles (CCO NPs) were synthesized as an oxygen evolution electrocatalyst via a simple co-precipitation method, with the composition being controlled by altering the precursor ratio to 1:1, 1:2, and 1:3 (Cu:Co) to investigate ...
Chae-Yeon Kwon, Chae-Yeon Kwon, Jae-Yeop Jeong, Jae-Yeop Jeong, Juchan Yang, Yoo Sei Park, Yoo Sei Park, Jaehoon Jeong, Honghyun Park, Yangdo Kim, Sung Mook Choi   +10 more
doaj   +1 more source

Part II: NiMoO₄ Nanostructures Synthesized by the Solution Combustion Method: A Parametric Study on the Influence of Material Synthesis and Electrode-Fabrication Parameters on the Electrocatalytic Activity in the Hydrogen Evolution Reaction

Molecules, 2022
Earth-abundant NiMo-oxide nanostructures were investigated as efficient electrocatalytic materials for the hydrogen evolution reaction (HER) in acidic media. Synthesis and non-synthesis parameters were thoroughly studied. For the non-synthesis parameters,
Mahmoud Bassam Rammal, Vincent El-Ghoubaira, Sasha Omanovic   +2 more
doaj   +1 more source

Nitrogen-Doped Carbon Nanodots@Nanospheres as An Efficient Electrocatalyst for Oxygen Reduction Reaction

, 2015
In this work, nitrogen-doped carbon nanodots (N-CNDs) with sizes of 2–6 nm were successfully synthesized by hydrothermal treatment of natural biomass (e.g., fresh grass) at 180 °C for 10 h.
Liu, Porun, Zhao, Huijun, An, Taicheng, Chen, Jiangyao, Chen, Ying, Zhang, Haimin, Wang, Yun, Li, Yibing   +7 more
core   +1 more source