Rational Design of Fe–N/C Hybrid for Enhanced Nitrogen Reduction Electrocatalysis under Ambient Conditions in Aqueous Solution

ACS Catalysis ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 336-344 ◽  
Author(s):  
Ying Wang ◽  
Xiaoqiang Cui ◽  
Jingxiang Zhao ◽  
Guangri Jia ◽  
Lin Gu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Rational Design ◽  
Ambient Conditions ◽  
Nitrogen Reduction

Electrochemical nitrogen reduction to ammonia at ambient conditions on nitrogen and phosphorus co-doped porous carbon

2019 ◽  
Vol 55 (5) ◽  
pp. 687-690 ◽  
Author(s):  
Pengfei Song ◽  
Hao Wang ◽  
Li Kang ◽  
Baocheng Ran ◽  
Honghong Song ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Porous Carbon ◽  
Ambient Conditions ◽  
Nitrogen And Phosphorus ◽  
Nitrogen Reduction ◽  
Highly Efficient ◽  
Co Doped

N,P co-doped porous carbon as a highly efficient electrocatalyst for N2 fixation in aqueous solution under ambient conditions.

Rational design of electrocatalysts and photo(electro)catalysts for nitrogen reduction to ammonia (NH3) under ambient conditions

2018 ◽  
Vol 11 (1) ◽  
pp. 45-56 ◽  
Author(s):  
Chunxian Guo ◽  
Jingrun Ran ◽  
Anthony Vasileff ◽  
Shi-Zhang Qiao
Keyword(s):  
Rational Design ◽  
Ambient Conditions ◽  
Nitrogen Reduction

This perspective highlights the rational design of efficient electrocatalysts and photo(electro)catalysts for N2 reduction to ammonia (NH3) under ambient conditions.

Rational design of boron contained co-doped graphene as high efficient electro-catalysts for nitrogen reduction reaction

2021 ◽  
Author(s):  
Wencheng Ouyang ◽  
Qiuming Zhi ◽  
LeLe Gong ◽  
Hao Sun ◽  
Minghui Liu ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Renewable Energy ◽  
Rational Design ◽  
Reduction Reaction ◽  
Ammonia Production ◽  
Ambient Conditions ◽  
Nitrogen Reduction ◽  
High Efficient ◽  
Doped Graphene ◽  
Co Doped

Electrocatalytic nitrogen reduction reaction (NRR) under ambient conditions has been proposed as a sustainable alternative for nitrogen fixation and ammonia production in environment and renewable energy fields. Carbon-based materials have...

Study of aerobic oxidation of phenyl PtII complexes (dpms)PtIIPh(L) (dpms = di(2-pyridyl)methanesulfonate; L = water, methanol, or aniline)

2009 ◽  
Vol 87 (1) ◽  
pp. 110-120 ◽  
Author(s):  
Julia R Khusnutdinova ◽  
Peter Y Zavalij ◽  
Andrei N Vedernikov
Keyword(s):  
Aqueous Solution ◽  
Aerobic Oxidation ◽  
Reductive Elimination ◽  
High Yield ◽  
Ambient Conditions ◽  
Activation Barriers ◽  
Methanol Solutions ◽  
Anionic Species ◽  
Mechanism Of Oxidation ◽  
Solution Mechanism

Oxidation of phenyl PtII complexes K[(dpms)PtIIPh2], 1, (dpms)PtIIPh(MeOH), 2, (dpms)PtIIPh(OH2), 3, and methyl PtII complex (dpms)PtIIMe(NH2Ph), 6, with O2 in aqueous or methanol solutions under ambient conditions leads to corresponding (dpms)PtIVR(X)OH complexes (R = X = Ph, 7; R = Ph, X = OH, 8; R = Ph, X = OMe, 9; R = Me, X = NHPh; 11; dpms = di(2-pyridyl)methanesulfonate). Complexes 7–9 could be isolated in high yield. Complex 11 as well as its phenyl analogue (dpms)PtIVPh(NHPh)OH, 10 can be prepared in high yield by oxidation of corresponding (dpms)PtIIR(NH2Ph) with H2O2 in methanol. Phenyl PtII complexes (dpms)PtIIPh(HX) derived from HX = aniline and DMSO, 4 and 5, respectively, are inert toward O2. The rate of oxidation of 1–5 with O2 decreases in the order 1 > 3 ~ 2 » 4, and 5 is unreactive. Methyl analogues are significantly more reactive compared with their phenyl counterparts. Proposed mechanism of oxidation with O2 includes formation of anionic species (dpms)PtIIR(X)– responsible for reaction with dioxygen. Attempts at C–O and C–N reductive elimination from phenyl PtIV complexes 7–10 do not lead to phenyl derivatives PhX at 80–100 °C, consistent with the results of the DFT estimates of corresponding activation barriers, ΔG0 exceeding 28 kcal/mol.Key words: platinum phenyl complexes, oxidation, dioxygen, aqueous solution, mechanism.

Preparation of CuO Nanopowder in Aqueous Solution by Applying Ultrasonic and its CO Gas Sensitivity

2007 ◽  
Vol 544-545 ◽  
pp. 901-904 ◽  
Author(s):  
Ji Bum Yang ◽  
Tae Gyung Ko ◽  
Sang Jin Jung ◽  
Jae Hee Oh
Keyword(s):  
Aqueous Solution ◽  
Gas Sensing ◽  
Spherical Shape ◽  
Particle Morphology ◽  
High Yield ◽  
Ambient Conditions ◽  
Gas Sensitivity ◽  
Molar Ratios ◽  
Naoh Solution ◽  
Co Gas

We report on a process in which CuO nanopowder was produced in a high yield by adopting ultrasonic in aqueous solution. In our experiment, CuCl2 solution was reacted with NaOH solution and NaNO2, at ambient conditions applying ultrasonic for 5 min. Precipitation was performed by varying the molar ratios of NaOH/CuCl2 and NaNO2/CuCl2. CuO nanoparticles of ~ 5 nm and spherical shape were obtained at the NaOH/CuCl2 of 2.0 and the NaNO2/CuCl2 of 0.097. Without ultrasonication, an amorphous phase was formed at these conditions. This indicates that sonochemical reaction facilitates direct formation of the nanosized CuO particles. In addition, the particle morphology varied from sphere through ellipsoid to needle forms depending on pH. In thick films prepared with the CuO powder for gas sensing, the maximum CO gas sensitivity reached 93 % at the temperature of 250 °C and depended linearly on CO concentration in log scale over the range of 10 ~ 104 ppm.

Efficient photocatalytic nitrogen fixation under ambient conditions enabled by the heterojunctions of n-type Bi2MoO6 and oxygen-vacancy-rich p-type BiOBr

Nanoscale ◽  
2019 ◽  
Vol 11 (21) ◽  
pp. 10439-10445 ◽  
Author(s):  
Xiaolan Xue ◽  
Renpeng Chen ◽  
Changzeng Yan ◽  
Yi Hu ◽  
Wenjun Zhang ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Oxygen Vacancy ◽  
Ambient Conditions ◽  
Nitrogen Reduction ◽  
Photocatalytic Activities ◽  
P Type

Bi2MoO6/OV-BiOBr heterojunctions are synthesized and show good photocatalytic activities for nitrogen reduction to ammonia under ambient conditions.

p-Block Element-doped Silicon Nanowires for Nitrogen Reduction Reaction: A DFT Study

Nanoscale ◽  
2021 ◽  
Author(s):  
Zhongyuan Guo ◽  
Lakshitha Jasin Arachchige ◽  
Siyao Qiu ◽  
Xiao Li Zhang ◽  
Yongjun Xu ◽  
...  
Keyword(s):  
Silicon Nanowires ◽  
Reduction Reaction ◽  
Dft Study ◽  
Block Element ◽  
Ambient Conditions ◽  
Nitrogen Reduction ◽  
Green Route ◽  
Doped Silicon

Photocatalytic nitrogen reduction reaction (NRR) is a promising, green route to chemically reducing N2 into NH3 under ambient conditions, correlating to the N2 fixation process of nitrogenase enzymes. To achieve...

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