In situ electrochemical reduction-assisted exfoliation: conversion of BiOCl nanoplates into Bi nanosheets enables efficient electrocatalytic nitrogen fixation

2020 ◽  
Vol 4 (7) ◽  
pp. 3334-3339 ◽  
Author(s):  
You Xu ◽  
Tianlun Ren ◽  
Shanshan Yu ◽  
Hongjie Yu ◽  
Shuli Yin ◽  
...  

Ultrathin Bi nanosheets are synthesized by in situ electrochemical reduction-assisted exfoliation of BiOCl nanoplates for the electrocatalytic nitrogen reduction reaction.

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 974
Author(s):  
Bing Han ◽  
Haihong Meng ◽  
Fengyu Li ◽  
Jingxiang Zhao

Under the current double challenge of energy and the environment, an effective nitrogen reduction reaction (NRR) has become a very urgent need. However, the largest production of ammonia gas today is carried out by the Haber–Bosch process, which has many disadvantages, among which energy consumption and air pollution are typical. As the best alternative procedure, electrochemistry has received extensive attention. In this paper, a catalyst loaded with Fe3 clusters on the two-dimensional material C2N (Fe3@C2N) is proposed to achieve effective electrochemical NRR, and our first-principles calculations reveal that the stable Fe3@C2N exhibits excellent catalytic performance for electrochemical nitrogen fixation with a limiting potential of 0.57 eV, while also suppressing the major competing hydrogen evolution reaction. Our findings will open a new door for the development of non-precious single-cluster catalysts for effective nitrogen reduction reactions.


2017 ◽  
Vol 10 (5) ◽  
pp. 1180-1185 ◽  
Author(s):  
Wenchao Sheng ◽  
Shyam Kattel ◽  
Siyu Yao ◽  
Binhang Yan ◽  
Zhixiu Liang ◽  
...  

In situtransformation of Pd into β-PdH is the origin of the high selectivity for CO in the electrochemical CO2reduction reaction using Pd as the electrocatalyst.


2020 ◽  
Vol 56 (3) ◽  
pp. 446-449 ◽  
Author(s):  
Shenglin Xiao ◽  
Fang Luo ◽  
Hao Hu ◽  
Zehui Yang

Boron and nitrogen dual-doped carbon nanospheres show exceptional nitrogen reduction reaction activity, with an NH3 yield rate of 15.7 μgNH3 h−1 mgcat.−1 and Faradaic efficiency of 8.1% at −0.4 V vs. RHE in acidic electrolyte.


1983 ◽  
Vol 40 (11) ◽  
pp. 1853-1860 ◽  
Author(s):  
B. G. Brownlee ◽  
T. P. Murphy

Nitrogen fixation by Aphanizomenon flos-aquae in a prairie lake in southwestern Manitoba was dependent on the light intensity and in situ oxygen concentrations. The mean molar ratio of acetylene reduction to nitrogen reduction was 5.8:1. High external ammonium concentrations did not appear to inhibit nitrogen fixation over the short term. Nitrogen fixation was not directly initiated by the bloom collapse. We propose that the coupled sequence of ammonia volatilization and nitrogen fixation was triggered by the bloom collapse and that the bloom collapse was caused by coprecipitation of orthophosphate with carbonates. 32PO4 turnover was most rapid during periods when the lake was opalescent, presumably due to carbonate precipitaton.


2020 ◽  
Vol 8 (10) ◽  
pp. 5209-5216 ◽  
Author(s):  
Mohammad Zafari ◽  
Deepak Kumar ◽  
Muhammad Umer ◽  
Kwang S. Kim

Machine learning (ML) methods would significantly reduce the computational burden of catalysts screening for nitrogen reduction reaction (NRR).


Author(s):  
Hongxi Zhang ◽  
Zengyao Wang ◽  
Jianfeng Shen ◽  
Mingxin Ye

The electro-catalytic nitrogen reduction reaction (NRR) at room temperature and atmospheric pressure had a great potential in NH3 production, but the low product yield because of the low density of...


2021 ◽  
Author(s):  
Damilola Ologunagba ◽  
Shyam Kattel

Electrochemical nitrogen reduction reaction (ENRR) at ambient conditions is beneficial compared to energy intensive thermochemical Haber-Bosch process for NH3 production. Here, periodic density functional theory (DFT) calculations are carried out...


Author(s):  
Xiaotian Li ◽  
Ye Tian ◽  
Xiaomiao Wang ◽  
Ya-li Guo ◽  
Ke Chu

Electrochemical nitrogen reduction reaction (NRR) provides a promising route for energy-effective and sustainable ammonia synthesis, while developing high-efficiency NRR electrocatalysts is extremely desirable. Here we first exploited foordite SnNb2O6 nanosheets...


Author(s):  
Reen Maria Lawrence ◽  
Sreekuttan Maraveedu Unni

In contrast to the Haber-Bosch process , which operates at extreme conditions generating green house gases and consuming fossil fuels, ammonia synthesis via electrochemical reduction of nitrogen, functioning at ambient...


2020 ◽  
Vol 22 (25) ◽  
pp. 13981-13988 ◽  
Author(s):  
Yao Tan ◽  
Ying Xu ◽  
Zhimin Ao

In this work, we explored the feasibility of transition metal atom embedded stanene as an effective catalyst for the nitrogen reduction reaction (NRR) based on first-principles calculations.


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