Prof. Dr. Guo Chen
Kunming Key Laboratory of Energy Materials Chemistry, Yunnan Minzu University, Kunming 650093, China
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Academic Career Length
7Years (2020-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 August 2020 in Journal of Hazardous Materials
Journal Article
KLKangqiang Li
Kangqiang Li
QJQi Jiang
Qi Jiang
LGLei Gao
Lei Gao
JCJin Chen
Jin ChenJPJinhui Peng
Jinhui Peng
Guo Chen +2
12 January 2023 in ACS Sustainable Chemistry & Engineering
Journal Article
HQHongju Qiu
Hongju Qiu
YZYanqiong Zhang
Yanqiong Zhang
WHWeiwei Huang
Weiwei Huang
JPJinhui Peng
Jinhui Peng
JCJin Chen
Jin Chen
Guo Chen +3
7 January 2025 in Ceramics International
Journal Article
JZJu Zhou
Ju Zhou
NZNa Zheng
Na Zheng
CLChunmei Liu
Chunmei Liu
YWYibing Wu
Yibing Wu
Mamdouh OmranGuo Chen +2
23 June 2020 in RSC Advances
Journal Article
Mamdouh OmranTFTimo Fabritius
Timo Fabritius
EHEetu-Pekka Heikkinen
Eetu-Pekka Heikkinen
TVTero Vuolio
Tero Vuolio
YYYaowei Yu
Yaowei Yu
YKYilmaz Kacar
Yilmaz Kacar
+1
Recently, more attention has been paid to the use of microwave (MW) energy in accelerating chemical reactions. The effect of microwave energy on the reduction of zinc oxide and zinc ferrite was investigated. The results indicated that the temperatures required to initiate zinc oxide and zinc ferrite reduction under MW heating were 550 and 450 °C, respectively, while under conventional thermal (CT) heating, were 950 and 850 °C, respectively. Apparently, the MW reaction had a negative standard Gibbs free energy (ΔG) at a lower temperature (∼400 °C) when compared to the CT reaction. Additionally, the activation energy (Ea) substantially decreased from 223.7 and 221.1 kJ mol−1 under CT heating to 64.8 and 32.9 kJ mol−1 under MW heating for Zn oxide and zinc ferrite, respectively. The enhancement in zinc reduction under MW energy was due to the rapid and bulk heating phenomena of MWs as well as the interactions occurring between the electromagnetic MW pattern and the molecules of heated materials.
Journal Article
NLNa Li
Na LiJLJun Li
Jun LiXWXiaoxi Wan
Xiaoxi WanYNYifan Niu
Yifan NiuYGYongwan Gu
Yongwan GuSJShaohua Ju
Shaohua Ju +1
In this paper, micro-size spherical silver particles were prepared by using a wet-chemical reduction method. The silver particles were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and a laser particle-size analyzer. The results indicate that different types and the content of surfactants can be used to prevent the accumulation, and control the morphology and particle size distribution, of silver particles. Moreover, the morphology of silver particles was changed from polyhedral to spherical when the pH was raised from 1 to 3. Under the optimal synthesis conditions (0.1 mol/L silver nitrate, 0.06 mol/L ascorbic acid, gelatin (5% by weight of silver nitrate), pH = 1), the micro-size spherical silver particles with diameter of 5–8 μm were obtained. In addition, the resistivity of conductive silver paste that prepared with the as-synthesized spherical silver particles was discussed in detail and the average resistivity of the conductive silver paste was 3.57 × 10−5 Ω·cm after sintering at 140 °C for 30 min.
21 December 2020 in Journal of Sustainable Metallurgy
Journal Article
Mamdouh OmranTFTimo Fabritius
Timo Fabritius
Yaowei YuEHEetu-Pekka Heikkinen
Eetu-Pekka Heikkinen
Guo ChenYKYilmaz Kacar
Yilmaz Kacar
Recently, microwave energy has attracted increasing interest for accelerating thermal reactions. This study investigated the impact of microwave heating on the zinc recovery rate from electric arc furnace (EAF) and chromium converter (CRC) dusts. The results indicated that microwave heating required a lower temperature to recover zinc from EAF and CRC dusts compared with that in conventional thermal heating. For CRC dust, zinc recovery rates of 37.84% and 97.43% were obtained with conventional and microwave heating, respectively, at 850 °C. For EAF dust, zinc recovery rates of 79.88% and 98.20% were obtained with conventional and microwave heating, respectively, at 850 °C. The improved zinc recovery in this study was concluded to results from the rapidity of microwave heating and the interactions between the electromagnetic microwave field and the molecules of heated materials. Graphical
About Me
Guo Chen, PhD (joint supervision by the Ministry of Education of the People’s Republic of China and the Scientific and Industrial Research Organization, Australia), professor at Yunnan Minzu University, Vice Director of National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased materials, Vice President of the First Council of Platinum Group Metals Branch of China Nonferrous Metals Industry Association, and Committee Member of the Seventh Academic Committee of Heavy nonferrous Metallurgy of China Nonferrous Metals Society, has memberships including the Association for Microwave Power in Europe for Research and Education (AMPERE) and the American Institute of Chemical Engineers (AIChE). Prof. Guo Chen focuses on the research and application of microwave heating technology in metallurgical engineering and was selected to attend projects including “The Brazilian Science without Borders Program”, “Supporting Program for Top Youth Scientist in Yunnan Province”, and “Young and middle-aged academic and technical leaders reserve talents in Yunnan Province”.
As the first/corresponding author, Prof. Guo Chen has published 60 SCI indexing papers and two books titled “Development and Application of Microwave Heating Equipment” and “New Technologies for Unconventional Metallurgy”. Prof. Guo Chen also has 20 national invention patents (China), 40 patents for utility models, and 2 international patents (1 in the US and 1 in South Korea).