“Green” reduction of graphene oxide to graphene by sodium citrate

Wan, Wubo; Zhao, Zongbin; Hu, Han; Zhou, Qiugui; Fan, Yanru; Qiu, Jieshan

doi:10.1016/j.carbon.2011.02.033

Cited by 10 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this way, the development of a synthesis process involving "green agents", non-toxic and ecologically correct compounds, is extremely important for the applicability of a large-scale synthesis of both GO and rGO. Recent studies pointed out to a promising future in the replacement of highly dangerous reducers to obtain graphene, called ecological reducers, such as metals (iron, zinc and aluminum) [14][15][16] , alkaline solutions (sodium hydroxide and potassium hydroxide) 17 , phenols (tannin, gallic acid, tea and dopamine) [18][19][20][21] , alcohols (methyl alcohol, ethyl alcohol and isopropyl alcohol) 22 and other substances (glycine, vitamin C and sodium citrate) [23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of templated carbon porous materials from simple raw materials

et al. 2021

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Green synthesis of templated carbon porous materials from simple raw materials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Up to now, considerable efforts have been devoted to develop the reduction methods. Here we present a simple classification as followed: using reducing agents (hydroquinone, dimethylhydrazine, hydrazine, ,,,,,− sodium borohydride, − sulfur-containing compounds, − aluminum powder, vitamin C, − hexamethylenetetramine, ethylenediamine (EDA), polyelectrolyte, reducing sugar, protein, sodium citrate, carbon monoxide, Fe, and norepinephrine,), performing under various conditions (acid/alkali, − thermal treatment, ,,− and others like microwave, − photocatalytic, − sonochemical, laser, − plasmas, bacterial respiration, lysozyme, tea solution), electrochemical, ,− electric current, two-step reduction, , and so on. These different reduction methods result in RGO with different properties.…”

Section: Introductionmentioning

confidence: 99%

Evaluation Criteria for Reduced Graphene Oxide

et al. 2011

View full text Add to dashboard Cite

Reduced graphene oxide (RGO) is an intriguing nanomaterial with tremendous potential for many applications. Although considerable efforts have been devoted to develop the reduction methods, it still needs further improvement, and how to choose an appropriate one for a specific application is a troublesome problem. In this study, RGOs were prepared by six typical reduction methods: N 2 H 4 3 H 2 O, NaOH, NaBH 4 , solvothermal, high-temperature, and two-step. The samples were systematic compared by four aspects: dispersibility, reduction degree, defect repair degree, and electrical conductivity. On the basis of the comparison, a simple evaluation criterion was proposed for qualitatively judging the quality of RGO. This evaluation criterion would be helpful to understand the mechanism of reduction and design more ideal reduction methods.

show abstract

“…, Escherichia coli and baker's yeast) 25 26 , and other substances ( e.g. , glycine, vitamin C, sodium citrate, and protein bovine serumalbumin) 27 28 29 30 . Generally, with eco-friendly reducing agents, the reduction of GO was successfully demonstrated to alleviate the environmental issues.…”

mentioning

confidence: 99%

Green preparation of reduced graphene oxide for sensing and energy storage applications

Shuai

Mao

et al. 2014

Sci Rep

488

193

View full text Add to dashboard Cite

Preparation of graphene from chemical reduction of graphene oxide (GO) is recognized as one of the most promising methods for large-scale and low-cost production of graphene-based materials. This study reports a new, green, and efficient reducing agent (caffeic acid/CA) for GO reduction. The CA-reduced GO (CA-rGO) shows a high C/O ratio (7.15) that is among the best rGOs prepared with green reducing reagents. Electronic gas sensors and supercapacitors have been fabricated with the CA-rGO and show good performance, which demonstrates the potential of CA-rGO for sensing and energy storage applications.G raphene, a two-dimensional (2D) carbon material, has shown great promise in various applications due to its unique structure and properties 1,2 . To promote the practical applications of graphene-based materials, a priority should be given to the exploration for large-scale preparation of high-quality graphene with easy processing route and low cost. Up to now, diverse strategies have been applied for the production of graphene, mainly including mechanical or ultrasonic exfoliation 3 , chemical vapor deposition (CVD)/plasmaenhanced CVD (PECVD) 4,5 , epitaxial growth 6 , electric arc discharge 7 , chemical intercalation 8 , thermal/chemical reduction of graphene oxide (GO) [9][10][11] . Among these methods, chemical reduction of GO is recognized as a versatile and suitable method for the preparation of graphene in bulk quantities at a low cost. Unfortunately, a large number of widely used reducing agents are toxic and/or explosive, such as the commonly-used hydrazine hydrate (HH) 12 and sodium borohydride 13 . As a consequence, continuous endeavors have been directed towards the development and optimization of eco-friendly reducing agents for GO reduction.Recent studies revealed that some natural materials/chemicals are promising substitutes for toxic/explosive reducing agents for GO reduction, such as metals (e.g., iron, zinc, and aluminum) [14][15][16]

show abstract

“Green” reduction of graphene oxide to graphene by sodium citrate

Cited by 10 publications

References 0 publications

Green synthesis of templated carbon porous materials from simple raw materials

Green synthesis of templated carbon porous materials from simple raw materials

Evaluation Criteria for Reduced Graphene Oxide

Green preparation of reduced graphene oxide for sensing and energy storage applications

Contact Info

Product

Resources

About