Synergistic boron-dopants and boron-induced oxygen vacancies in MnO2 nanosheets to promote electrocatalytic nitrogen reduction

2020 ◽  
Vol 8 (10) ◽  
pp. 5200-5208 ◽  
Author(s):  
Ke Chu ◽  
Ya-ping Liu ◽  
Yong-hua Cheng ◽  
Qing-qing Li
Keyword(s):  
Synergistic Effect ◽  
Oxygen Vacancies ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction ◽  
Mno2 Nanosheets

The synergistic effect of B-dopants and B-dopant-induced O-vacancies led to the significantly enhanced NRR activity of MnO2 nanosheets with an NH3 yield of 54.2 μg h−1 mg−1 (−0.4 V) and a faradaic efficiency of 16.8% (−0.2 V).

Optically and Electrocatalytically Decoupled Si Photocathodes with a Porous Carbon Nitride Catalyst for Nitrogen Reduction with Over 61.8% Faradaic Efficiency

2021 ◽  
pp. 2100812
Author(s):  
Karthik Peramaiah ◽  
Vinoth Ramalingam ◽  
Hui‐Chun Fu ◽  
Merfat M. Alsabban ◽  
Rafia Ahmad ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Nitride ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction

Zr-doped α-FeOOH with High Faradaic Efficiency for Electrochemical Nitrogen Reduction Reaction

2021 ◽  
pp. 150801
Author(s):  
Jiabin Tan ◽  
Xiaobo H ◽  
Fengxiang Yin ◽  
Xin Liang ◽  
Guoru Li ◽  
...  
Keyword(s):  
Reduction Reaction ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction

Li-Intercalation Boosted Oxygen Vacancies Enable Efficient Electrochemical Nitrogen Reduction on Ultrathin TiO2 Nanosheets

2021 ◽  
pp. 133085
Author(s):  
Renna Zhao ◽  
Guangbin Wang ◽  
Yuyin Mao ◽  
Xiaolei Bao ◽  
Zeyan Wang ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Nitrogen Reduction ◽  
Tio2 Nanosheets

scholarly journals Adsorption-regulated precise synthesis of atomically-dispersed bimetallic Fe-Co sites on carbon for electrocatalytic nitrogen reduction reaction

2021 ◽  
Author(s):  
Shengbo Zhang ◽  
Miaomiao Han ◽  
Tongfei Shi ◽  
Haimin Zhang ◽  
Yue Lin ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Reduction Reaction ◽  
Single Atom ◽  
Synthetic Approach ◽  
New Paradigm ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction ◽  
Site Density

Abstract The intriguing features of single-atom catalysts (SACs) could bring catalysis into a new paradigm, however, controllably synthesising SACs with desired SA loadings and coordination forms are challenging. Here, we report an adsorption-regulated approach to precisely control the synthesis of bimetallic Fe-Co SAs on carbon. Bacterial cellulose (BC) is utilised as an adsorption regulator to controllably impregnate Fe3+/Co2+ on BC and through carbonisation to anchor Fe-Co SAs on BC-derived carbon via bimetallic [(O-C2)3Fe-Co(O-C2)3] coordination with desired Fe/Co contents and atomic ratios. Under electrocatalytic nitrogen reduction reaction (NRR) conditions, [(O-C2)3Fe-Co(O-C2)3] is operando transformed to [(O-C2)3Fe-Co(O-C)C2] that promotes and sustains NRR performance. A superb ammonia yield of 574.8 ± 35.3 μg h-1 mgcat.-1 with an exceptional faradaic efficiency of 73.2 ± 4.6% are obtained from an electrocatalyst with the highest bimetallic Fe-Co site density. The exemplified synthetic approach would be of generically applicable to controllably anchor SAs on carbon that enables meaningfully investigate and rationally design SACs.

scholarly journals Experimental and Theoretical Investigation of Mesoporous MnO2 Nanosheets with Oxygen Vacancies for High-Efficiency Catalytic DeNOx

ACS Catalysis ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 3865-3874 ◽  
Author(s):  
Jia Liu ◽  
Yajuan Wei ◽  
Pei-Zhou Li ◽  
Peipei Zhang ◽  
Wei Su ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Oxygen Vacancies ◽  
High Efficiency ◽  
Mno2 Nanosheets

Emerging two-dimensional nanomaterials for electrochemical nitrogen reduction

2021 ◽  
Author(s):  
Yingping Pang ◽  
Chao Su ◽  
Guohua Jia ◽  
Liqiang Xu ◽  
Zongping Shao
Keyword(s):  
High Performance ◽  
Two Dimensional ◽  
Strong Activity ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction

This review focuses on high-performance 2D electrocatalysts for nitrogen-reduction, highlighting massive-potential for strong activity, high NH3 yield and faradaic efficiency.

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