Prof. Junlei Qi
'%3e%3cpath%20d='M22.1642%2019.0924C21.7317%2018.068%2021.1041%2017.1375%2020.3163%2016.3527C19.5309%2015.5656%2018.6006%2014.9381%2017.5766%2014.5048C17.5674%2014.5002%2017.5582%2014.4979%2017.5491%2014.4933C18.9774%2013.4616%2019.9059%2011.7811%2019.9059%209.88504C19.9059%206.74408%2017.3611%204.19922%2014.2201%204.19922C11.0792%204.19922%208.53429%206.74408%208.53429%209.88504C8.53429%2011.7811%209.46282%2013.4616%2010.8912%2014.4956C10.882%2014.5002%2010.8728%2014.5025%2010.8636%2014.5071C9.83652%2014.9404%208.91487%2015.5617%208.1239%2016.355C7.33685%2017.1404%206.70933%2018.0707%206.276%2019.0947C5.85031%2020.0972%205.62072%2021.172%205.59967%2022.2609C5.59905%2022.2853%205.60335%2022.3097%205.61229%2022.3325C5.62123%2022.3553%205.63465%2022.376%205.65174%2022.3935C5.66883%2022.4111%205.68926%2022.425%205.71182%2022.4345C5.73437%2022.444%205.7586%2022.4489%205.78308%2022.4489H7.15868C7.25956%2022.4489%207.3398%2022.3686%207.3421%2022.2701C7.38795%2020.5001%208.09868%2018.8425%209.35506%2017.5861C10.655%2016.2862%2012.3814%2015.5709%2014.2201%2015.5709C16.0588%2015.5709%2017.7852%2016.2862%2019.0852%2017.5861C20.3415%2018.8425%2021.0523%2020.5001%2021.0981%2022.2701C21.1004%2022.3709%2021.1807%2022.4489%2021.2815%2022.4489H22.6571C22.6816%2022.4489%2022.7058%2022.444%2022.7284%2022.4345C22.751%2022.425%2022.7714%2022.4111%2022.7885%2022.3935C22.8056%2022.376%2022.819%2022.3553%2022.8279%2022.3325C22.8369%2022.3097%2022.8412%2022.2853%2022.8406%2022.2609C22.8176%2021.165%2022.5907%2020.0989%2022.1642%2019.0924ZM14.2201%2013.8284C13.1678%2013.8284%2012.1773%2013.418%2011.4322%2012.6729C10.6871%2011.9278%2010.2767%2010.9374%2010.2767%209.88504C10.2767%208.83271%2010.6871%207.84227%2011.4322%207.09715C12.1773%206.35204%2013.1678%205.94165%2014.2201%205.94165C15.2724%205.94165%2016.2629%206.35204%2017.008%207.09715C17.7531%207.84227%2018.1635%208.83271%2018.1635%209.88504C18.1635%2010.9374%2017.7531%2011.9278%2017.008%2012.6729C16.2629%2013.418%2015.2724%2013.8284%2014.2201%2013.8284Z'%20fill='%238590A2'/%3e%3c/g%3e%3c/svg%3e)
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Academic Career Length
17Years (2010-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications20 May 2019 in Advanced Science
Journal Article
JLJinghuang Lin
Jinghuang Lin
PWPengcheng Wang
Pengcheng Wang
HWHaohan Wang
Haohan Wang
Chun LiXSXiaoqing Si
Xiaoqing Si
JFJicai Feng
Jicai Feng
+4
Designing and constructing bifunctional electrocatalysts is vital for water splitting. Particularly, the rational interface engineering can effectively modify the active sites and promote the electronic transfer, leading to the improved splitting efficiency. Herein, free‐standing and defect‐rich heterogeneous MoS2/NiS2 nanosheets for overall water splitting are designed. The abundant heterogeneous interfaces in MoS2/NiS2 can not only provide rich electroactive sites but also facilitate the electron transfer, which further cooperate synergistically toward electrocatalytic reactions. Consequently, the optimal MoS2/NiS2 nanosheets show the enhanced electrocatalytic performances as bifunctional electrocatalysts for overall water splitting. This study may open up a new route for rationally constructing heterogeneous interfaces to maximize their electrochemical performances, which may help to accelerate the development of nonprecious electrocatalysts for overall water splitting.
1 February 2018 in Journal of Power Sources
Journal Article
HLHaoyan Liang
Haoyan Liang
JLJinghuang Lin
Jinghuang Lin
HJHenan Jia
Henan Jia
SCShulin Chen
Shulin Chen
Junlei QiJFJicai Feng
Jicai Feng
+3
13 July 2018 in Journal of Materials Chemistry A
Journal Article
HLHaoyan Liang
Haoyan Liang
JLJinghuang Lin
Jinghuang Lin
HJHenan Jia
Henan Jia
SCShulin Chen
Shulin Chen
Junlei QiJFJicai Feng
Jicai Feng
+3
To realize high-performance and long life span supercapacitors, highly electrochemically active materials and rational design of structure are highly desirable. Herein, a hierarchical NiCo-LDH/NiCoP@NiMn-LDH hybrid electrode (NCLP@NiMn-LDH) was synthesized on carbon cloth via a hydrothermal reaction and phosphorization treatment. Owing to the introduction of NiCoP and design of the core–shell structure, the hybrid electrode showed significantly improved electrochemical performance. The as-fabricated hybrid electrode exhibited a high specific capacitance of 2318 F g−1 at 1 A g−1, with a superior cyclic stability. Additionally, an asymmetric supercapacitor (NCLP@NiMn-LDH//AC) was assembled with a voltage window of 1.5 V. The ASC device delivered a maximum energy density of 42.2 W h kg−1 at a power density of 750 W kg−1.
1 March 2018 in Chemical Engineering Journal
Journal Article
JLJinghuang Lin
Jinghuang Lin
HJHenan Jia
Henan Jia
HLHaoyan Liang
Haoyan Liang
SCShulin Chen
Shulin Chen
YCYifei Cai
Yifei Cai
JFJicai Feng
Jicai Feng
+4
24 October 2023 in Journal of the American Chemical Society
Journal Article
Yaotian YanJLJinghuang Lin
Jinghuang Lin
KHKeke Huang
Keke Huang
XZXiaohang Zheng
Xiaohang ZhengLQLiang Qiao
Liang Qiao
Junlei Qi +4
1 October 2019 in Journal of Materials Chemistry A
Journal Article
YYYaotian Yan
Yaotian Yan
JLJinghuang Lin
Jinghuang Lin
JCJian Cao
Jian Cao
SGShu Guo
Shu Guo
XZXiaohang Zheng
Xiaohang ZhengJunlei Qi +1
Vacancy engineering or element doping has been extensively developed to tune the electrocatalytic activity of electrocatalysts. However, it is challenging to simultaneously generate doping and defects, and insights into the structure–property relationship in vacancy-rich and doped catalysts are lacking. Herein, a V-doped NiCoP electrocatalyst is developed through utilizing the V-doping effect enhanced by P vacancies via plasma treatment. The P vacancies can enhance the V doping effect to increase the electroactive sites and regulate the electron density of the active site center. Thus, an enlarged electrochemical active area, accelerated electron transportation and promoted electronic coupling effects can be achieved. As a result, the overpotentials at a current density of 10 mA cm−2 are 58 and 246 mV for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 1 M KOH, respectively. When serving as a bifunctional electrode for overall water splitting, V-doped NiCoP with P vacancies can achieve a low voltage of 1.55 V at 10 mA cm−2. This work highlights a feasible strategy to explore efficient electrocatalysts via the heterogeneous atom doping effect enhanced by vacancies.
About Me
Prof. Junlei Qi is a Professor and Doctoral Supervisor at School of Materials Science, Welding Department, Harbin Institute of Technology. He is the winner of Heilongjiang Province Outstanding Youth Fund, academic leader of Harbin Institute of Technology Young Scientist Studio, and Harbin Institute of Technology "Young Outstanding Talent" selection plan. He received his Bachelor's, Master's and Ph.D. degrees at Jilin University. He served as a Lecturer (2010.07-2014.12) at Harbin Institute of Technology, a Visiting Scholar/Visiting Researcher (2012.03-2013.03) at University of Tokyo, an Associate Professor (2014.12-2017.12) at Harbin Institute of Technology. The students he guided have won the Baosteel Outstanding Student Special Award, the Ministry of Industry and Information Technology's Innovation and Entrepreneurship Special Award, the Youth League Central Committee's Advanced Individual Model for Practicing Socialist Core Values. He is also a director of the Youth Committee of the China Materials Research Society, a member of the Standing Committee of the Youth Committee of the China Welding Society, and a senior consultant of China Aerospace Sanjiang Technology Group. He mainly engaged in research on new materials and heterogeneous material connection, focusing on three key scientific issues: "interface wetting and activation mechanism, stress relief mechanism, and interface reaction control".